Patent US4392193A successfully refreshed from Google Patents.
US4392193A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rectifying and inverting apparatus
Assignee: Siemens Energy Inc
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Filing: 1964-09-01
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Granted: 1983-07-05
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Expires: 1984-09-01
Abstract
Abstract 1. In an apparatus for transferring electrical energy between a unidirectional potential circuit and an alternating potential circuit, a pair of unidirectional potential busses adapted to be connected to the unidirectional potential circuit, a pair of alternating potential busses adapted to be connected to the alternating potential circuit, a transformer having first and second winding parts, said second winding part having first and second pairs of connections, means connecting said first winding part to said alternating potential busses, first and second separately energized current conducting paths connecting said first pair of connections of said second winding part to said unidirectional potential busses for transfer of energy from said unidirectional busses to said alternating potential busses, said first path when conductive being effective to conduct current between said unidirectional busses in one direction and through a first portion of said second winding part in a first direction to thereby induce a potential of a first polarity in said first winding part, said second path when conductive being effective to conduct current between said unidirectional busses in said one direction and through said first portion of said second winding part in a direction opposite to said first direction to thereby induce a potential of a second polarity in said first winding part, said second polarity being opposite to said first polarity, third and fourth separately energized current conducting paths connecting said second pair of connections of said second winding part to said unidirectional potential busses for transfer of energy from said alternating potential busses to said unidirectional potential busses, said third path when conductive being operable to conduct current between said unidirectional busses in a second direction through a second portion of said second winding part, said fourth path when conductive being operable to conduct current between said unidirectional busses in said second direction through said second portion of said second winding part, the turns of said winding parts being arranged such that the ratio of the turns of said first winding part with respect to the turns of said second winding part which are located between said first connections is greater than the ratio of the turns of said first winding part with respect to the turns of said second winding part which are located between said second connections, and means rendering said first path conductive solely for a first predetermined interval of each first half cycle of current flow through one of said winding parts and thereafter rendering conductive for the remainder of each of first half cycles of said current in said one winding part the one of said third and fourth paths which connects the said second pair of connections for the flow of current from the most positive one of said second pair of connections to the most negative one of said second pair of connections, said last-named means being operable to render said second path conductive solely for a second predetermined interval of each second half cycle of the current flow through said one winding part and thereafter rendering conductive for the remainder of each of said second half cycle of said current in said one winding part the other of said third and fourth paths.
Inventors
- 👤 Frank V. Frola
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:26
CPC Classifications
H; H02; H02M; H02M7/00; H02M7/66; H02M7/68; H02M7/72; H02M7/75; H02M7/757
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
529 words
In an apparatus for transferring electrical energy between a unidirectional potential circuit and an alternating potential circuit, a pair of unidirectional potential busses adapted to be connected to the unidirectional potential circuit, a pair of alternating potential busses adapted to be connected to the alternating potential circuit, a transformer having first and second winding parts, said second winding part having first and second pairs of connections, means connecting said first winding part to said alternating potential busses, first and second separately energized current conducting paths connecting said first pair of connections of said second winding part to said unidirectional potential busses for transfer of energy from said unidirectional busses to said alternating potential busses, said first path when conductive being effective to conduct current between said unidirectional busses in one direction and through a first portion of said second winding part in a first direction to thereby induce a potential of a first polarity in said first winding part, said second path when conductive being effective to conduct current between said unidirectional busses in said one direction and through said first portion of said second winding part in a direction opposite to said first direction to thereby induce a potential of a second polarity in said first winding part, said second polarity being opposite to said first polarity, third and fourth separately energized current conducting paths connecting said second pair of connections of said second winding part to said unidirectional potential busses for transfer of energy from said alternating potential busses to said unidirectional potential busses, said third path when conductive being operable to conduct current between said unidirectional busses in a second direction through a second portion of said second winding part, said fourth path when conductive being operable to conduct current between said unidirectional busses in said second direction through said second portion of said second winding part, the turns of said winding parts being arranged such that the ratio of the turns of said first winding part with respect to the turns of said second winding part which are located between said first connections is greater than the ratio of the turns of said first winding part with respect to the turns of said second winding part which are located between said second connections, and means rendering said first path conductive solely for a first predetermined interval of each first half cycle of current flow through one of said winding parts and thereafter rendering conductive for the remainder of each of first half cycles of said current in said one winding part the one of said third and fourth paths which connects the said second pair of connections for the flow of current from the most positive one of said second pair of connections to the most negative one of said second pair of connections, said last-named means being operable to render said second path conductive solely for a second predetermined interval of each second half cycle of the current flow through said one winding part and thereafter rendering conductive for the remainder of each of said second half cycle of said current in said one winding part the other of said third and fourth paths.
Claim 2
Dependent Claim
529 words
In an apparatus for transferring electrical energy between a unidirectional potential circuit and an alternating potential circuit, a pair of unidirectional potential busses adapted to be connected to the unidirectional potential circuit, a pair of alternating potential busses adapted to be connected to the alternating potential circuit, a transformer having first and second winding parts, said second winding part having first and second pairs of connections, means connecting said first winding part to said alternating potential busses, first and second separately energized current conducting paths connecting said first pair of connections of said second winding part to said unidirectional potential busses for transfer of energy from said unidirectional busses to said alternating potential busses, said first path when conductive being effective to conduct current between said unidirectional busses in one direction and through a first portion of said second winding part in a first direction to thereby induce a potential of a first polarity in said first winding part, said second path when conductive being effective to conduct current between said unidirectional busses in said one direction and through said first portion of said second winding part in a direction opposite to said first direction to thereby induce a potential of a second polarity in said first winding part, said second polarity being opposite to said first polarity, third and fourth separately energized current conducting paths connecting said second pair of connections of said second winding part to said unidirectional potential busses for transfer of energy from said alternating potential busses to said unidirectional potential busses, said third path when conductive being operable to conduct current between said unidirectional busses in a second direction through a second portion of said second winding part, said fourth path when conductive being operable to conduct current between said unidirectional busses in said second direction through said second portion of said second winding part, the turns of said winding parts being arranged such that the ratio of the turns of said first winding part with respect to the turns of said second winding part which are located between said first connections is greater than the ratio of the turns of said first winding part with respect to the turns of said second winding part which are located between said second connections, and means rendering said first path conductive solely for a first predetermined interval of each first half cycle of current flow through one of said winding parts and thereafter rendering conductive for the remainder of each of first half cycles of said current in said one winding part the one of said third and fourth paths which connects the said second pair of connections for the flow of current from the most positive one of said second pair of connections to the most negative one of said second pair of connections, said last-named means being operable to render said second path conductive solely for a second predetermined interval of each second half cycle of the current flow through said one winding part and thereafter rendering conductive for the remainder of each of said second half cycle of said current in said one winding part the other of said third and fourth paths.
Claim 3
Dependent Claim
39 words
The combination of claim 1 in which said first predetermined interval is equal in duration to said second predetermined interval and said paths include at least one valve device for controlling at least the initiation of current flow therethrough.
Claim 4
Dependent Claim
62 words
The combination of claim 2 in which a fifth and sixth current path interconnecting said first pair of connections with said unidirectional potential busses, and diode device in said fifth and sixth paths to permit flow of electrical energy solely from said first pair of connections to said unidirectional busses at said first and said second polarities of said first winding part.
Claim 5
Dependent Claim
44 words
The combination of claim 3 in which said valve devices are of the thyratronic type, there is provided means to render said thyratronic valve devices associated with said first and second paths nonconducting at the end of said first and second predetermined intervals respectively.
Claim 6
Independent Claim
619 words
An apparatus for transferring electrical energy between a unidirectional potential circuit and an alternating potential circuit comprising; unidirectional power terminals adapted to be connected to a unidirectional potential circuit; alternating power terminals adapted to be connected to an alternating potential circuit; a transformer having first and second windings; said second winding having two end terminals and two intermediate terminals located intermediate said end terminals with a first terminal of said intermediate terminals being intermediate the second terminal of said intermediate terminals and a first terminal of said end terminals; a plurality of bridge networks; each said network having first and second pairs of terminals and a plurality of current conducting paths, a first of said paths connecting a first terminal of said first pair of terminals to one terminal of said second pair of terminals, a second of said paths connecting said first terminal of said first pair of terminals to the other terminal of said second pair of terminals, a third of said paths connecting said other terminal to said second terminal and a fourth of said paths connecting said one terminal to said second terminal, each said path including an electronic valve controlling its current conducting condition, said first and second paths and the said valves included therein being arranged such that current flow therethrough is from said first terminal to said second pair of terminals, said third and said fourth paths and the said valves included therein being arranged such that current flow therethrough is from said second pair of terminals to said second terminal; means connecting said first terminal of a first and of a second of said bridge networks to one of said unidirectional power terminals; means connecting said second terminal of said first and of said second bridge networks to the other of said unidirectional power terminals; means connecting said one terminal of said first bridge network to said first intermediat terminal; means connecting said other terminal of said first bridge network to said second intermediate terminal; first and second energy storage devices; means connecting said one terminal of said first bridge network said one terminal of said second bridge network and including said first storage device; means including connecting said other terminal of said first network to said other terminal of said second network and including said second storage device; means connecting said first terminal of a third and a fourth of said bridge networks to said other unidirectional power terminal; means connecting said second terminal of said third and fourth bridge network to said one unidirectional power terminal; means connecting said one terminal of said third bridge network to said first end terminal; means connecting said other terminal of said third bridge network to the second of said end terminals; means connecting together said one terminal of said first and fourth bridge networks, means connecting together said other terminals of said first and fourth bridge networks; and means for rendering conductive said valves of said first and third paths of said first bridge network and thereafter said valves of said first and third paths of said second bridge network and thereafter said valves of said first and third paths of said third bridge network and thereafter said valves of said second and fourth paths of said first bridge network and thereafter said valves of said second and fourth paths of said second bridge network and thereafter said valves of said second and fourth paths of said third bridge network; said valves of said paths of said first and said second and said third bridge networks being thyratronic type valves and said valves of said fourth bridge network being diodes; and circuit means connecting said first winding to said alternating power terminals.
Claim 7
Independent Claim
619 words
An apparatus for transferring electrical energy between a unidirectional potential circuit and an alternating potential circuit comprising; unidirectional power terminals adapted to be connected to a unidirectional potential circuit; alternating power terminals adapted to be connected to an alternating potential circuit; a transformer having first and second windings; said second winding having two end terminals and two intermediate terminals located intermediate said end terminals with a first terminal of said intermediate terminals being intermediate the second terminal of said intermediate terminals and a first terminal of said end terminals; a plurality of bridge networks; each said network having first and second pairs of terminals and a plurality of current conducting paths, a first of said paths connecting a first terminal of said first pair of terminals to one terminal of said second pair of terminals, a second of said paths connecting said first terminal of said first pair of terminals to the other terminal of said second pair of terminals, a third of said paths connecting said other terminal to said second terminal and a fourth of said paths connecting said one terminal to said second terminal, each said path including an electronic valve controlling its current conducting condition, said first and second paths and the said valves included therein being arranged such that current flow therethrough is from said first terminal to said second pair of terminals, said third and said fourth paths and the said valves included therein being arranged such that current flow therethrough is from said second pair of terminals to said second terminal; means connecting said first terminal of a first and of a second of said bridge networks to one of said unidirectional power terminals; means connecting said second terminal of said first and of said second bridge networks to the other of said unidirectional power terminals; means connecting said one terminal of said first bridge network to said first intermediat terminal; means connecting said other terminal of said first bridge network to said second intermediate terminal; first and second energy storage devices; means connecting said one terminal of said first bridge network said one terminal of said second bridge network and including said first storage device; means including connecting said other terminal of said first network to said other terminal of said second network and including said second storage device; means connecting said first terminal of a third and a fourth of said bridge networks to said other unidirectional power terminal; means connecting said second terminal of said third and fourth bridge network to said one unidirectional power terminal; means connecting said one terminal of said third bridge network to said first end terminal; means connecting said other terminal of said third bridge network to the second of said end terminals; means connecting together said one terminal of said first and fourth bridge networks, means connecting together said other terminals of said first and fourth bridge networks; and means for rendering conductive said valves of said first and third paths of said first bridge network and thereafter said valves of said first and third paths of said second bridge network and thereafter said valves of said first and third paths of said third bridge network and thereafter said valves of said second and fourth paths of said first bridge network and thereafter said valves of said second and fourth paths of said second bridge network and thereafter said valves of said second and fourth paths of said third bridge network; said valves of said paths of said first and said second and said third bridge networks being thyratronic type valves and said valves of said fourth bridge network being diodes; and circuit means connecting said first winding to said alternating power terminals.
Claim 8
Dependent Claim
524 words
In combination a unidirectional potential circuit having power terminals, an alternating potential circuit having power terminals, a transformer having first and second windings, said second winding having two end terminals and two intermediate terminals located intermediate said end terminals with a first terminal of said intermediate terminals being intermediate the second terminal of said intermediate terminals and a first terminal of said end terminals, a plurality of bridge networks each said network having first and second pairs of terminals and first and second and third and fourth current conducting paths, said first and said second paths of each said network respectively and individually connecting a first terminal of its said first pair of terminals to one and the other terminal of its said second pair of terminals, said third and said fourth paths of each said bridge network individually and respectively connecting the second of its said first pair of terminals to said other terminal and said one terminal of its said second pair of terminals, each said path including an electronic valve controlling its current conducting condition, said paths and said valve of each said bridge networks being arranged such that current flow is from its said first terminal to its said second pair of terminals and from its said second pair of terminals to its said second terminal, means connecting said first terminals of a first and a second of said bridge networks and said second terminals of a third and a fourth of said bridge networks to one of said unidirectional power terminals, means connecting said second terminals of said first and second bridge networks and said first terminals of said third and said fourth bridge network to the other of said unidirectional power terminals, means connecting said one terminal of said first bridge network to said first intermediate terminal, means connecting said other terminal of said first bridge network to said second intermediate terminal, first and second capacitive impedance devices, first and second inductive impedance devices, means connecting said one terminal of said first network said one terminal of said second bridge network and including in series circuit said first impedance devices, means connecting said other terminal of said first network to said other terminal of said second network and including in series circuit said second impedance devices, means connecting said one terminal of said third bridge network to said first end terminal, means connecting said other terminal of said third bridge network to the second of said end terminals, means connecting together said one terminal of said first and fourth bridge networks, means connecting together said other terminals of said first and fourth bridge networks, and means rendering said first and said third paths of said first and thereafter of said second and thereafter of said third bridge networks conductive and thereafter rendering said second and said fourth paths of said first and thereafter said second and thereafter said third bridge networks conductive, said valves of first and second and third bridge networks being thyratronic type valves and said valves of said fourth bridge network being diodes, and circuit means connecting said first winding to said alternating power terminals.
Claim 9
Dependent Claim
524 words
In combination a unidirectional potential circuit having power terminals, an alternating potential circuit having power terminals, a transformer having first and second windings, said second winding having two end terminals and two intermediate terminals located intermediate said end terminals with a first terminal of said intermediate terminals being intermediate the second terminal of said intermediate terminals and a first terminal of said end terminals, a plurality of bridge networks each said network having first and second pairs of terminals and first and second and third and fourth current conducting paths, said first and said second paths of each said network respectively and individually connecting a first terminal of its said first pair of terminals to one and the other terminal of its said second pair of terminals, said third and said fourth paths of each said bridge network individually and respectively connecting the second of its said first pair of terminals to said other terminal and said one terminal of its said second pair of terminals, each said path including an electronic valve controlling its current conducting condition, said paths and said valve of each said bridge networks being arranged such that current flow is from its said first terminal to its said second pair of terminals and from its said second pair of terminals to its said second terminal, means connecting said first terminals of a first and a second of said bridge networks and said second terminals of a third and a fourth of said bridge networks to one of said unidirectional power terminals, means connecting said second terminals of said first and second bridge networks and said first terminals of said third and said fourth bridge network to the other of said unidirectional power terminals, means connecting said one terminal of said first bridge network to said first intermediate terminal, means connecting said other terminal of said first bridge network to said second intermediate terminal, first and second capacitive impedance devices, first and second inductive impedance devices, means connecting said one terminal of said first network said one terminal of said second bridge network and including in series circuit said first impedance devices, means connecting said other terminal of said first network to said other terminal of said second network and including in series circuit said second impedance devices, means connecting said one terminal of said third bridge network to said first end terminal, means connecting said other terminal of said third bridge network to the second of said end terminals, means connecting together said one terminal of said first and fourth bridge networks, means connecting together said other terminals of said first and fourth bridge networks, and means rendering said first and said third paths of said first and thereafter of said second and thereafter of said third bridge networks conductive and thereafter rendering said second and said fourth paths of said first and thereafter said second and thereafter said third bridge networks conductive, said valves of first and second and third bridge networks being thyratronic type valves and said valves of said fourth bridge network being diodes, and circuit means connecting said first winding to said alternating power terminals.
Claim 10
Independent Claim
417 words
An apparatus for transferring electrical energy between a unidirectional potential circuit and an alternating potential circuit comprising, unidirectional power terminals adapted to be connected to a unidirectional potential circuit, alternating power terminals adapted to be connected to an alternating potential circuit, a transformer having first and second windings, said second windings having two end terminals and two intermediate terminals located intermediate said end terminals with a first terminal of said intermediate terminals being intermediate the second terminal of said intermediate terminals and a first terminal of said end terminals, a plurality of bridge networks, each said network having first and second pairs of terminals and a plurality of current conducting paths, a first and a second of said paths of each said network individually and respectively connecting a first terminal of its said first pair of terminals to one and the other terminal of its said second pair of terminals, a third and a fourth of said paths of each said network individually and respectively connecting said one terminal and said other terminal of its said second pair of terminals to the second terminal of its said first pair of terminals, each said path including an electronic valve controlling its current conducting condition, said paths and said valves of each said bridge networks being arranged such that current flow is from said first terminal to said second pair of terminals and from said second pair of terminals to said second terminal, means connecting said first terminal of a first of said bridge networks and said second terminal of a second of said networks to one of said unidirectional power terminals, means connecting said second terminal of said first bridge network and said first terminal of said second bridge network to the other of said unidirectional power terminals, means connecting said one terminal of said first bridge network to said first intermediate terminal, means connecting said other terminal of said first bridge network to said second intermediate terminal, means connecting said one terminal of said second bridge network to said first end terminal, means connecting said other terminal of said second bridge network to the second of said end terminals, and means rendering said first and third paths of said first network conductive and thereafter said first and third paths of said second network and thereafter said second and fourth paths of said first network and thereafter said second and fourth paths of said second network, and circuit means connecting said first winding to said alternating power terminals.
Claim 11
Independent Claim
417 words
An apparatus for transferring electrical energy between a unidirectional potential circuit and an alternating potential circuit comprising, unidirectional power terminals adapted to be connected to a unidirectional potential circuit, alternating power terminals adapted to be connected to an alternating potential circuit, a transformer having first and second windings, said second windings having two end terminals and two intermediate terminals located intermediate said end terminals with a first terminal of said intermediate terminals being intermediate the second terminal of said intermediate terminals and a first terminal of said end terminals, a plurality of bridge networks, each said network having first and second pairs of terminals and a plurality of current conducting paths, a first and a second of said paths of each said network individually and respectively connecting a first terminal of its said first pair of terminals to one and the other terminal of its said second pair of terminals, a third and a fourth of said paths of each said network individually and respectively connecting said one terminal and said other terminal of its said second pair of terminals to the second terminal of its said first pair of terminals, each said path including an electronic valve controlling its current conducting condition, said paths and said valves of each said bridge networks being arranged such that current flow is from said first terminal to said second pair of terminals and from said second pair of terminals to said second terminal, means connecting said first terminal of a first of said bridge networks and said second terminal of a second of said networks to one of said unidirectional power terminals, means connecting said second terminal of said first bridge network and said first terminal of said second bridge network to the other of said unidirectional power terminals, means connecting said one terminal of said first bridge network to said first intermediate terminal, means connecting said other terminal of said first bridge network to said second intermediate terminal, means connecting said one terminal of said second bridge network to said first end terminal, means connecting said other terminal of said second bridge network to the second of said end terminals, and means rendering said first and third paths of said first network conductive and thereafter said first and third paths of said second network and thereafter said second and fourth paths of said first network and thereafter said second and fourth paths of said second network, and circuit means connecting said first winding to said alternating power terminals.
Claim 12
Dependent Claim
341 words
In an apparatus for transferring energy between a unidirectional potential circuit and alternating potential circuit, a pair of unidirectional potential busses adapted to be connected to the unidirectional potential circuit, a pair of alternating potential busses adapted to be connected to the alternating potential circuit, a transformer having first and second winding parts, said second winding part having first and second pairs of connections, means connecting said first winding part to said alternating potential busses, first and second separately energized current conducting paths connecting said first pair of connections of said second winding part to said unidirectional potential busses for transfer of energy from said unidirectional busses to said alternating potential busses, said first path when conductive being effective to conduct current between said unidirectional busses in one direction and through a first portion of said second winding part in a first direction to thereby induce a potential in said first winding part from energy furnished from said pair of unidirectional potential busses, said second path when conductive being operable to conduct current between said unidirectional potential busses in a direction opposite to said one direction and through a second portion of said second winding part in a given direction from energy furnished said first winding part from said pair of alternating busses, the turns of said winding parts being arranged such that the ratio of the turns of said first winding part with respect to the turns of said second winding part which are located between said first connections is greater than the ratio of the turns of said first winding part with respect to the turns of said second winding part which are located between said connections, and control means rendering solely one of said paths conductive at any given interval, said control means being effective to render said first path conductive solely during intervals in which said first polarity is to be established in said first winding portion and said second path conductive solely during intervals in which said first polarity is established in said first winding part.
Claim 13
Dependent Claim
341 words
In an apparatus for transferring energy between a unidirectional potential circuit and alternating potential circuit, a pair of unidirectional potential busses adapted to be connected to the unidirectional potential circuit, a pair of alternating potential busses adapted to be connected to the alternating potential circuit, a transformer having first and second winding parts, said second winding part having first and second pairs of connections, means connecting said first winding part to said alternating potential busses, first and second separately energized current conducting paths connecting said first pair of connections of said second winding part to said unidirectional potential busses for transfer of energy from said unidirectional busses to said alternating potential busses, said first path when conductive being effective to conduct current between said unidirectional busses in one direction and through a first portion of said second winding part in a first direction to thereby induce a potential in said first winding part from energy furnished from said pair of unidirectional potential busses, said second path when conductive being operable to conduct current between said unidirectional potential busses in a direction opposite to said one direction and through a second portion of said second winding part in a given direction from energy furnished said first winding part from said pair of alternating busses, the turns of said winding parts being arranged such that the ratio of the turns of said first winding part with respect to the turns of said second winding part which are located between said first connections is greater than the ratio of the turns of said first winding part with respect to the turns of said second winding part which are located between said connections, and control means rendering solely one of said paths conductive at any given interval, said control means being effective to render said first path conductive solely during intervals in which said first polarity is to be established in said first winding portion and said second path conductive solely during intervals in which said first polarity is established in said first winding part.
Claim 14
Dependent Claim
275 words
In an apparatus for transferring energy between a unidirectional potential circuit and alternating potential circuit, a pair of unidirectional potential busses adapted to be connected to the unidirectional potential circuit, a pair of alternating potential busses adapted to be connected to the alternating potential circuit, a transformer having first and second winding parts, said second winding part having first and second pairs of connections, means connecting said first winding part to said alternating potential busses, first and second separately energized current conducting paths connecting said first pair of connections of said second winding part to said unidirectional potential busses for transfer of energy from said unidirectional busses to said alternating potential busses, said first path when conductive being effective to conduct current between said unidirectional busses in one direction and through a first portion of said second winding part in a first direction to thereby induce a potential in said first winding part from energy furnished from said pair of unidirectional potential busses, said second path when conductive being operable to conduct current between said unidirectional potential busses in a direction opposite to said one direction and through a second portion of said second winding part in a given direction from energy furnished said first winding part from said pair of alternating busses, and control means rendering solely one of said paths conductive at any given interval, said control means being effective to render said first path conductive solely during intervals in which said first polarity is to be established in said first winding portion and said second path conductive solely during intervals in which said first polarity is established in said first winding part.
Claim 15
Dependent Claim
275 words
In an apparatus for transferring energy between a unidirectional potential circuit and alternating potential circuit, a pair of unidirectional potential busses adapted to be connected to the unidirectional potential circuit, a pair of alternating potential busses adapted to be connected to the alternating potential circuit, a transformer having first and second winding parts, said second winding part having first and second pairs of connections, means connecting said first winding part to said alternating potential busses, first and second separately energized current conducting paths connecting said first pair of connections of said second winding part to said unidirectional potential busses for transfer of energy from said unidirectional busses to said alternating potential busses, said first path when conductive being effective to conduct current between said unidirectional busses in one direction and through a first portion of said second winding part in a first direction to thereby induce a potential in said first winding part from energy furnished from said pair of unidirectional potential busses, said second path when conductive being operable to conduct current between said unidirectional potential busses in a direction opposite to said one direction and through a second portion of said second winding part in a given direction from energy furnished said first winding part from said pair of alternating busses, and control means rendering solely one of said paths conductive at any given interval, said control means being effective to render said first path conductive solely during intervals in which said first polarity is to be established in said first winding portion and said second path conductive solely during intervals in which said first polarity is established in said first winding part.
Claim 16
Dependent Claim
495 words
In an apparatus for transferring electrical energy between a unidirectional potential circuit and an alternating potential circuit, a pair of unidirectional potential busses adapted to be connected to the unidirectional potential circuit, a pair of alternating potential busses adapted to be connected to the alternating potential circuit, a transformer having first and second winding parts, said second winding part having first and second pairs of connections, means connecting said first winding part to said alternating potential busses, first and second separately energized current conducting paths connecting said first pair of connections of said second winding part to said unidirectional potential busses for transfer of energy from said unidirectional busses to said alternating potential busses, said first path when conductive being effective to conduct current between said unidirectional busses in one direction and through a first portion of said second winding part in a first direction to thereby induce a potential of a first polarity in said first winding part, said second path when conductive being effective to conduct current between said unidirectional busses in said one direction and through said first portion of said second winding part in a direction opposite to said one direction to thereby induce a potential of a second polarity in said first winding part, said second polarity being opposite to said first polarity, third and fourth separately energized current conducting paths connecting said second pair of connections of said second winding part to said unidirectional potential busses for transfer of energy from said alternating potential busses to said unidirectional potential busses, said third path when conductive being operable to conduct current between said unidirectional busses in a second direction and through a second portion of said second winding part in a given direction when said first winding part is energized at its said first polarity, said fourth path when conductive being operable to conduct current between said unidirectional busses in said second direction and through said second portion of said second winding part in a direction opposite to said given direction whereby said first winding part is energized at its said second polarity, and control means rendering solely one of said paths conductive at any given interval, said control means being effective to render said first path conductive solely during intervals in which said first polarity is to be established in said first winding part from said unidirectional potential busses and said third path conductive solely during intervals in which said first winding part maintains said second pair of connections at a given polarity relative for the flow of current therethrough, said control means being effective to render said second path conductive solely during intervals in which said second polarity is to be established in said first winding part from said unidirectional potential busses and said fourth path conductive solely during intervals in which said first winding part maintains said second pair of connections at a relative polarity opposite to said given relative polarity for the flow of current therethrough.
Claim 17
Dependent Claim
495 words
In an apparatus for transferring electrical energy between a unidirectional potential circuit and an alternating potential circuit, a pair of unidirectional potential busses adapted to be connected to the unidirectional potential circuit, a pair of alternating potential busses adapted to be connected to the alternating potential circuit, a transformer having first and second winding parts, said second winding part having first and second pairs of connections, means connecting said first winding part to said alternating potential busses, first and second separately energized current conducting paths connecting said first pair of connections of said second winding part to said unidirectional potential busses for transfer of energy from said unidirectional busses to said alternating potential busses, said first path when conductive being effective to conduct current between said unidirectional busses in one direction and through a first portion of said second winding part in a first direction to thereby induce a potential of a first polarity in said first winding part, said second path when conductive being effective to conduct current between said unidirectional busses in said one direction and through said first portion of said second winding part in a direction opposite to said one direction to thereby induce a potential of a second polarity in said first winding part, said second polarity being opposite to said first polarity, third and fourth separately energized current conducting paths connecting said second pair of connections of said second winding part to said unidirectional potential busses for transfer of energy from said alternating potential busses to said unidirectional potential busses, said third path when conductive being operable to conduct current between said unidirectional busses in a second direction and through a second portion of said second winding part in a given direction when said first winding part is energized at its said first polarity, said fourth path when conductive being operable to conduct current between said unidirectional busses in said second direction and through said second portion of said second winding part in a direction opposite to said given direction whereby said first winding part is energized at its said second polarity, and control means rendering solely one of said paths conductive at any given interval, said control means being effective to render said first path conductive solely during intervals in which said first polarity is to be established in said first winding part from said unidirectional potential busses and said third path conductive solely during intervals in which said first winding part maintains said second pair of connections at a given polarity relative for the flow of current therethrough, said control means being effective to render said second path conductive solely during intervals in which said second polarity is to be established in said first winding part from said unidirectional potential busses and said fourth path conductive solely during intervals in which said first winding part maintains said second pair of connections at a relative polarity opposite to said given relative polarity for the flow of current therethrough.
Claim 18
Dependent Claim
74 words
The combination of claim 10 in which the turns of said winding parts are arranged such that the ratio of the turns of said first winding part with respect to the turns of said second winding part which are located between said first connections is greater than the ratio of the turns of said first winding part with respect to the turns of said second winding part which are located between said second connections.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-07-04 | 1987-01-03 | 1987-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-07-04 | 1991-01-03 | 1991-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-07-04 | 1995-01-03 | 1995-07-05 | $7700.00 | Window Closed / Lapsed |