Patent US6344985B1 successfully refreshed from Google Patents.
US6344985B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multiple port bi-directional power converter
Assignee: Heart Transverter SA
•
Filing: 2000-12-05
•
Granted: 2002-02-05
•
Expires: 2020-12-05
Abstract
Abstract In one embodiment of the present invention, a bi-directional power converter is described. The converter comprises a first bi-directional DC-DC conversion device having a first plurality of bi-directional DC-DC converters, a plurality of power supply ports, each connected to at least one of the first plurality of bi-directional DC-DC converters, and a voltage medium capacitor, which is connected to each of the first plurality of bi-directional DC-DC converters and has a first voltage greater than a second voltage measured at each of the power supply ports. The converter further may comprise a third bi-directional DC-DC converter device, which is connected to the voltage medium capacitor and is connected to a voltage high capacitor. The converter also may comprise a bi-directional AC-DC conversion device, which bi-directional AC-DC conversion device is connected to the voltage high capacitor and at least one inductor, which is connected to a plurality of AC ports. In another embodiment of the present invention, at least one of the DC ports may be a hydrogen fuel cell.
Inventors
- 👤 Steve Heart Akerson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:01
CPC Classifications
H; H02; H02M; H02M3/00; H02M3/02; H02M3/04; H02M3/10; H02M3/145; H02M3/155; H02M3/156; H02M3/158; H02M3/1584; H02M3/1582; H02M3/22; H02M3/24; H02M3/28; H02M3/325; H02M3/335; H02M3/33569; H02M3/33576; H02M3/33584; H02M1/00; H02M1/0067; H02M1/007
Claims Analysis
Total Claims: 112
Claim 1
Independent Claim
99 words
A bi-directional power converter comprising: a first bi-directional DC-DC conversion device, wherein in the first bi-directional DC-DC conversion device comprises a first plurality of bi-directional DC-DC converters; a plurality of power supply ports each connected to at least one of the first plurality of bi-directional DC-DC converters, wherein the plurality of power supply ports transfer power to each other; and a voltage medium capacitor connected to each of the first plurality of bi-directional DC-DC converters, wherein a first voltage measured at the voltage medium capacitor is greater than a second voltage measured at each of the power supply ports.
Claim 2
Dependent Claim
99 words
A bi-directional power converter comprising: a first bi-directional DC-DC conversion device, wherein in the first bi-directional DC-DC conversion device comprises a first plurality of bi-directional DC-DC converters; a plurality of power supply ports each connected to at least one of the first plurality of bi-directional DC-DC converters, wherein the plurality of power supply ports transfer power to each other; and a voltage medium capacitor connected to each of the first plurality of bi-directional DC-DC converters, wherein a first voltage measured at the voltage medium capacitor is greater than a second voltage measured at each of the power supply ports.
Claim 3
Dependent Claim
19 words
The bi-directional power converter of claim 1 , wherein each of the power supply ports is a DC port.
Claim 4
Dependent Claim
42 words
The bi-directional power converter of claim 2 , wherein each of the DC ports is selected from the group consisting of a battery, a photovoltaic array, a hydrogen fuel cell, a DC load, a DC hydro generator, and a DC wind generator.
Claim 5
Dependent Claim
51 words
The bi-directional power converter of claim 2 , wherein at least one of the DC ports is a photovoltaic array, and each of the photovoltaic arrays is pulse width modulated and the pulse width modulation maintains the voltage measured at the photovoltaic array at a maximum power point for the array.
Claim 6
Dependent Claim
33 words
The bi-directional power converter of claim 3 , wherein each of the first plurality of bi-directional DC-DC converters is connected to each of the other bi-directional DC-DC converters via the voltage medium capacitor.
Claim 7
Dependent Claim
28 words
The bi-directional power converter of claim 5 , wherein each of the first plurality of bi-directional DC-DC converters comprises a first switching device and a second switching device.
Claim 8
Dependent Claim
22 words
The bi-directional power converter of claim 6 , wherein each of the first and second switching devices comprises a plurality of switches.
Claim 9
Dependent Claim
52 words
The bi-directional power converter of claim 6 , wherein each of the first and second switching devices has a duty cycle and the duty cycle determines a relative difference between the first voltage measured at the voltage medium capacitor and the second voltages measured at at least one of the DC ports.
Claim 10
Dependent Claim
27 words
The bi-directional power converter of claim 8 , wherein the first and second switching devices are selected from the group consisting of a MOSFET and an IGBT.
Claim 11
Dependent Claim
61 words
The bi-directional power converter of claim 8 , wherein each of the first plurality of bi-directional DC-DC converters further comprises: at least one inductor connected to at least one of the switching devices and at least one of the DC ports; and at least one capacitor connected to the at least one inductor and at least one of the DC ports.
Claim 12
Dependent Claim
33 words
The bi-directional power converter of claim 9 , wherein the second voltage measured at at least one of the DC ports is not equal to the second voltages measured at another DC port.
Claim 13
Dependent Claim
26 words
The bi-directional power converter of claim 11 , wherein at least one first switching device is closed when at least one second switching device is open.
Claim 14
Dependent Claim
80 words
The bi-directional power converter of claim 12 , wherein the first voltage measured at the voltage medium capacitor is equal to a quotient of each of the second voltages measured at at least one of the DC ports divided by a time ratio, wherein the time ratio is an amount of time that at least one of the first switching devices is closed divided by an operation time of at least one of the first plurality of bi-directional DC-DC converters.
Claim 15
Dependent Claim
22 words
The bi-directional power converter of claim 13 , wherein the voltage measured at the voltage medium capacitor is a substantially constant value.
Claim 16
Dependent Claim
17 words
The bi-directional power converter of claim 14 , wherein the substantially constant value is about 50 volts.
Claim 17
Dependent Claim
100 words
The bi-directional power converter of claim 14 , further comprising: a third bi-directional DC-DC converter device, wherein the third bi-directional DC-DC conversion device comprises a first plurality of switches, wherein at least one of the first plurality of switches is connected to the voltage medium capacitor and a primary side of a transformer, and a second plurality of switches, wherein at least one of the second plurality of switches is connected to a secondary side of the transformer; and a voltage high capacitor, wherein the voltage high capacitor is connected to at least one of the second plurality of switches.
Claim 18
Dependent Claim
32 words
The bi-directional power converter of claim 16 , wherein the primary side and the secondary side are coupled to each other and isolate the voltage high capacitor from the voltage medium capacitor.
Claim 19
Dependent Claim
54 words
The bi-directional power converter of claim 17 , wherein a ratio of a number of turns on the secondary side to a number of turns on the primary side is equal to a ratio of a third voltage measured at the voltage high capacitor to the first voltage measured at the voltage medium capacitor.
Claim 20
Dependent Claim
30 words
The bi-directional power converter of claim 18 , wherein the number of turns on the secondary side is less than four times the number of turns on the primary side.
Claim 21
Dependent Claim
20 words
The bi-directional power converter of claim 19 , wherein the voltage measured at the voltage high capacitor is substantially constant.
Claim 22
Dependent Claim
17 words
The bi-directional power converter of claim 20 , wherein the substantially constant voltage is about 190 volts.
Claim 23
Dependent Claim
36 words
The bi-directional power converter of claim 21 , wherein the first plurality of switches forms a bi-directional H-bridge to the primary side and the second plurality of switches forms a bi-directional H-bridge to the secondary side.
Claim 24
Dependent Claim
33 words
The bi-directional power converter of claim 22 , wherein at least two of the first plurality of switches are concurrently closed when at least two of the second plurality of switches are closed.
Claim 25
Dependent Claim
33 words
The bi-directional power converter of claim 23 , wherein at least two of the first plurality of switches are concurrently open when at least two of the second plurality of switches are open.
Claim 26
Dependent Claim
55 words
The bi-directional power converter of claim 24 , wherein the first plurality of switches and the second plurality of switches allow a current to flow from the primary side to the secondary side and from the secondary side to the primary side, and form a bi-directional bridge between the primary side and the secondary side.
Claim 27
Dependent Claim
62 words
The bi-directional power converter of claim 25 , further comprising: a plurality of AC ports connected to at least one inductor; and a bi-directional AC-DC conversion device, wherein the bi-directional AC-DC conversion device comprises a third plurality of switches, wherein at least one of the third plurality of switches is connected to the voltage high capacitor and the at least one inductor.
Claim 28
Dependent Claim
27 words
The bi-directional power converter of claim 26 , wherein the third plurality of switches form a bi-directional bridge between the voltage high capacitor and the AC ports.
Claim 29
Dependent Claim
70 words
The bi-directional power converter of claim 27 , wherein at least two of the third plurality switches are concurrently closed and the third plurality of switches determine a shape of a voltage measured at the at least one inductor having a waveform at a low frequency with the shape selected from the group consisting of a positive half of a sine wave and a negative half of the sine wave.
Claim 30
Dependent Claim
29 words
The bi-directional power converter of claim 28 , wherein the bi-directional AC-DC conversion device further comprises a filter connected to the at least one inductor and the AC ports.
Claim 31
Dependent Claim
22 words
The bi-directional power converter of claim 29 , wherein the filter reduces a switching noise produced by the third plurality of switches.
Claim 32
Dependent Claim
41 words
The bi-directional power converter of claim 30 , wherein a pulse modulation of at least one of the third plurality of switches determines the shape and an amplitude of the waveform of the voltage measured at the at least one inductor.
Claim 33
Dependent Claim
28 words
The bi-directional power converter of claim 31 , wherein the bi-directional AC-DC conversion device further comprises a plurality of output switches connected to the at least one inductor.
Claim 34
Dependent Claim
38 words
The bi-directional power converter of claim 32 , wherein at least one of the output switches is connected to at least one of the AC ports, and the AC ports transfer power between each of the DC ports.
Claim 35
Dependent Claim
30 words
The bi-directional power converter of claim 33 , wherein the AC ports are selected from the group consisting of a public power grid, an AC generator, and an AC load.
Claim 36
Dependent Claim
36 words
The bi-directional power converter of claim 34 , wherein at least one of the output switches is closed when the voltage measured at the at least one inductor is phase locked and within a predetermined range.
Claim 37
Dependent Claim
30 words
The bi-directional power converter of claim 35 , wherein the plurality of output switches are selected from the group consisting of a mechanical relay and a solid state semiconductor switch.
Claim 38
Dependent Claim
35 words
The bi-directional power converter of claim 5 , further comprising at least one second bi-directional DC-DC conversion device, wherein each of the second bi-directional DC-DC conversion devices comprises a second plurality of bi-directional DC-DC converters.
Claim 39
Dependent Claim
28 words
The bi-directional power converter of claim 37 , wherein the first bi-directional DC-DC conversion device and each of the second bi-directional DC-DC conversion devices are connected in parallel.
Claim 40
Dependent Claim
30 words
The bi-directional power converter of claim 38 , wherein each of the first and second plurality of bi-directional DC-DC converters comprises a first switching device and a second switching device.
Claim 41
Dependent Claim
22 words
The bi-directional power converter of claim 39 , wherein each of the first and second switching devices comprises a plurality of switches.
Claim 42
Dependent Claim
69 words
The bi-directional power converter of claim 39 , wherein each of the first switching devices has a first duty cycle and each of the second switching devices has a second duty cycle, wherein the first duty cycles and the second duty cycles determine a relative difference between the first voltage measured at the voltage medium capacitor and the second voltage measured at at least one of the DC ports.
Claim 43
Dependent Claim
24 words
The bi-directional power converter of claim 41 , wherein at least one of the first duty cycles equals another of the first duty cycles.
Claim 44
Dependent Claim
28 words
The bi-directional power converter of claim 42 , wherein at least one of the first duty cycles is out of phase with another of the first duty cycles.
Claim 45
Dependent Claim
51 words
The bi-directional power converter of claim 43 , wherein a phase difference between at least one of the first duty cycles and at least one of the second duty cycles is a quotient of 360 degrees divided by a number of first and second bi-directional DC-DC conversion devices connected in parallel.
Claim 46
Dependent Claim
26 words
The bi-directional power converter of claim 44 , wherein each of the switching devices is selected from the group consisting of a MOSFET and an IGBT.
Claim 47
Dependent Claim
98 words
The bi-directional power converter of claim 44 , wherein each of the first plurality of bi-directional DC-DC converters further comprises: at least one first inductor connected to at least one of the first switching devices and at least one of the DC ports; and at least one first capacitor connected to the at least one first inductor and at least one of the DC ports; wherein the second plurality of bi-directional DC-DC converters further comprises: at least one second inductor connected to at least one of the first switching devices and at least one of the DC ports.
Claim 48
Dependent Claim
33 words
The bi-directional power converter of claim 46 , wherein the second voltage measured at at least one of the DC ports is not equal to the second voltage measured at another DC port.
Claim 49
Dependent Claim
30 words
The bi-directional power converter of claim 47 , wherein at least one of the first switching devices is closed when at least one of the second switching devices is open.
Claim 50
Dependent Claim
80 words
The bi-directional power converter of claim 48 , wherein the first voltage measured at the voltage medium capacitor is equal to a quotient of each of the second voltages measured at at least one of the DC ports divided by a time ratio, wherein the time ratio is an amount of time that at least one of the first switching devices is closed divided by an operation time of at least one of the first plurality of bi-directional DC-DC converters.
Claim 51
Dependent Claim
23 words
The bi-directional power converter of claim 49 , wherein the first voltage measured at the voltage medium capacitor is a substantially constant value.
Claim 52
Dependent Claim
17 words
The bi-directional power converter of claim 50 , wherein the substantially constant value is about 50 volts.
Claim 53
Dependent Claim
40 words
The bi-directional power converter of claim 50 , wherein a current flowing through each of the DC ports is a summation of a current flowing through the at least one first inductor and through the at least one second inductor.
Claim 54
Dependent Claim
23 words
The bi-directional power converter of claim 52 , wherein the current flowing through each of the DC ports is a substantially constant value.
Claim 55
Dependent Claim
22 words
The bi-directional power converter of claim 53 , wherein a current flowing into the voltage medium capacitor is greater than zero amps.
Claim 56
Dependent Claim
100 words
The bi-directional power converter of claim 53 , further comprising: a third bi-directional DC-DC converter device, wherein the third bi-directional DC-DC conversion device comprises a first plurality of switches, wherein at least one of the first plurality of switches is connected to the voltage medium capacitor and a primary side of a transformer, and a second plurality of switches, wherein at least one of the second plurality of switches is connected to a secondary side of the transformer; and a voltage high capacitor, wherein the voltage high capacitor is connected to at least one of the second plurality of switches.
Claim 57
Dependent Claim
32 words
The bi-directional power converter of claim 55 , wherein the primary side and the secondary side are coupled to each other and isolate the voltage high capacitor from the voltage medium capacitor.
Claim 58
Dependent Claim
54 words
The bi-directional power converter of claim 56 , wherein a ratio of a number of turns on the secondary side to a number of turns on the primary side is equal to a ratio of a third voltage measured at the voltage high capacitor to the first voltage measured at the voltage medium capacitor.
Claim 59
Dependent Claim
30 words
The bi-directional power converter of claim 57 , wherein the number of turns on the secondary side is less than four times the number of turns on the primary side.
Claim 60
Dependent Claim
21 words
The bi-directional power converter of claim 57 , wherein the third voltage measured at the voltage high capacitor is substantially constant.
Claim 61
Dependent Claim
17 words
The bi-directional power converter of claim 59 , wherein the substantially constant voltage is about 190 volts.
Claim 62
Dependent Claim
36 words
The bi-directional power converter of claim 59 , wherein the first plurality of switches forms a bi-directional H-bridge to the primary side and the second plurality of switches forms a bi-directional H-bridge to the secondary side.
Claim 63
Dependent Claim
33 words
The bi-directional power converter of claim 61 , wherein at least two of the first plurality of switches are concurrently closed when at least two of the second plurality of switches are closed.
Claim 64
Dependent Claim
33 words
The bi-directional power converter of claim 62 , wherein at least two of the first plurality of switches are concurrently open when at least two of the second plurality of switches are open.
Claim 65
Dependent Claim
55 words
The bi-directional power converter of claim 63 , wherein the first plurality of switches and the second plurality of switches allow a current to flow from the primary side to the secondary side and from the secondary side to the primary side and form a bi-directional bridge between the primary side and the secondary side.
Claim 66
Dependent Claim
62 words
The bi-directional power converter of claim 64 , further comprising: a plurality of AC ports connected to at least one inductor; and a bi-directional AC-DC conversion device, wherein the bi-directional AC-DC conversion device comprises a third plurality of switches, wherein at least one of the third plurality of switches is connected to the voltage high capacitor and the at least one inductor.
Claim 67
Dependent Claim
27 words
The bi-directional power converter of claim 65 , wherein the third plurality of switches form a bi-directional bridge between the voltage high capacitor and the AC ports.
Claim 68
Dependent Claim
67 words
The bi-directional power converter of claim 66 , wherein at least two of the third plurality switches are concurrently closed and the third plurality of switches determine a voltage measured at the at least one inductor having a waveform at a low frequency with a shape selected from the group consisting of a positive half of a sine wave and a negative half of the sine wave.
Claim 69
Dependent Claim
29 words
The bi-directional power converter of claim 67 , wherein the bi-directional AC-DC conversion device further comprises a filter connected to the at least one inductor and the AC ports.
Claim 70
Dependent Claim
22 words
The bi-directional power converter of claim 68 , wherein the filter reduces a switching noise produced by the third plurality of switches.
Claim 71
Dependent Claim
41 words
The bi-directional power converter of claim 69 , wherein a pulse modulation of at least one of the third plurality of switches determines the shape and an amplitude of the waveform of the voltage measured at the at least one inductor.
Claim 72
Dependent Claim
28 words
The bi-directional power converter of claim 70 , wherein the bi-directional AC-DC conversion device further comprises a plurality of output switches connected to the at least one inductor.
Claim 73
Dependent Claim
38 words
The bi-directional power converter of claim 71 , wherein at least one of the output switches is connected to at least one of the AC ports, and the AC ports transfer power between each of the DC ports.
Claim 74
Dependent Claim
30 words
The bi-directional power converter of claim 72 , wherein the AC ports are selected from the group consisting of a public power grid, an AC generator, and an AC load.
Claim 75
Dependent Claim
36 words
The bi-directional power converter of claim 73 , wherein at least one of the output switches is closed when the voltage measured at the at least one inductor is phase locked and within a predetermined range.
Claim 76
Dependent Claim
30 words
The bi-directional power converter of claim 74 , wherein the plurality of output switches are selected from the group consisting of a mechanical relay and a solid state semiconductor switch.
Claim 77
Dependent Claim
131 words
The bi-directional power converter of claim 53 , further comprising: a third bi-directional DC-DC converter device, wherein the third bi-directional DC-DC conversion device comprises a first plurality of switches, wherein at least one of the first plurality of switches is connected to the voltage medium capacitor and at least one selected from the group consisting of a primary side of a transformer and a zero resonant switching technique circuit, and a second plurality of switches, wherein at least one of the second plurality of switches is connected to at least one selected from the group comprising a secondary side of the transformer and the zero resonant switching technique circuit; and a voltage high capacitor, wherein the voltage high capacitor is connected to at least one of the second plurality of switches.
Claim 78
Dependent Claim
32 words
The bi-directional power converter of claim 76 , wherein the primary side and the secondary side are coupled to each other and isolate the voltage high capacitor from the voltage medium capacitor.
Claim 79
Dependent Claim
54 words
The bi-directional power converter of claim 77 , wherein a ratio of a number of turns on the secondary side to a number of turns on the primary side is equal to a ratio of a third voltage measured at the voltage high capacitor to the first voltage measured at the voltage medium capacitor.
Claim 80
Dependent Claim
30 words
The bi-directional power converter of claim 78 , wherein the number of turns on the secondary side is less than four times the number of turns on the primary side.
Claim 81
Dependent Claim
21 words
The bi-directional power converter of claim 79 , wherein the third voltage measured at the voltage high capacitor is substantially constant.
Claim 82
Dependent Claim
17 words
The bi-directional power converter of claim 80 , wherein the substantially constant voltage is about 190 volts.
Claim 83
Dependent Claim
36 words
The bi-directional power converter of claim 81 , wherein the first plurality of switches forms a bi-directional H-bridge to the primary side and the second plurality of switches forms a bi-directional H-bridge to the secondary side.
Claim 84
Dependent Claim
34 words
The bi-directional power converter of claim 82 , wherein at least two of the first plurality of switches are concurrently closed at when at least two of the second plurality of switches are closed.
Claim 85
Dependent Claim
34 words
The bi-directional power converter of claim 83 , wherein at least two of the first plurality of switches are concurrently open at when at least two of the second plurality of switches are open.
Claim 86
Dependent Claim
55 words
The bi-directional power converter of claim 84 , wherein the first plurality of switches and the second plurality of switches allow a current to flow from the primary side to the secondary side and from the secondary side to the primary side, and form a bi-directional bridge between the primary side and the secondary side.
Claim 87
Dependent Claim
65 words
The bi-directional power converter of claim 85 , further comprising: a plurality of AC ports connected to at least one inductor; and a bi-directional AC-DC conversion device, wherein the bi-directional AC-DC conversion device comprises a third plurality of switches, wherein at least one of the third plurality of switches is connected to the zero resonant voltage switching technique circuit and the at least one inductor.
Claim 88
Dependent Claim
30 words
The bi-directional power converter of claim 86 , wherein the third plurality of switches form a bi-directional bridge between the zero resonant voltage switching technique circuit and the AC ports.
Claim 89
Dependent Claim
67 words
The bi-directional power converter of claim 87 , wherein at least two of the third plurality switches are concurrently closed and the third plurality of switches determine a voltage measured at the at least one inductor having a waveform at a low frequency with a shape selected from the group consisting of a positive half of a sine wave and a negative half of the sine wave.
Claim 90
Dependent Claim
29 words
The bi-directional power converter of claim 88 , wherein the bi-directional AC-DC conversion device further comprises a filter connected to the at least one inductor and the AC ports.
Claim 91
Dependent Claim
22 words
The bi-directional power converter of claim 89 , wherein the filter reduces a switching noise produced by the third plurality of switches.
Claim 92
Dependent Claim
41 words
The bi-directional power converter of claim 90 , wherein a pulse modulation of at least one of the third plurality of switches determines the shape and an amplitude of the waveform of the voltage measured at the at least one inductor.
Claim 93
Dependent Claim
28 words
The bi-directional power converter of claim 91 , wherein the bi-directional AC-DC conversion device further comprises a plurality of output switches connected to the at least one inductor.
Claim 94
Dependent Claim
38 words
The bi-directional power converter of claim 92 , wherein at least one of the output switches is connected to at least one of the AC ports, and the AC ports transfer power between each of the DC ports.
Claim 95
Dependent Claim
30 words
The bi-directional power converter of claim 93 , wherein the AC ports are selected from the group consisting of a public power grid, an AC generator, and an AC load.
Claim 96
Dependent Claim
36 words
The bi-directional power converter of claim 94 , wherein at least one of the output switches is closed when the voltage measured at the at least one inductor is phase locked and within a predetermined range.
Claim 97
Dependent Claim
30 words
The bi-directional power converter of claim 95 , wherein the plurality of output switches are selected from the group consisting of a mechanical relay and a solid state semiconductor switch.
Claim 98
Dependent Claim
32 words
The bi-directional power converter of claim 96 , further comprising a zero resonant voltage switching technique circuit, wherein the zero resonant voltage switching technique circuit is connected to the voltage medium capacitor.
Claim 99
Dependent Claim
65 words
The bi-directional power converter of claim 97 , further comprising: a plurality of AC ports connected to at least one inductor; and a bi-directional AC-DC conversion device, wherein the bi-directional AC-DC conversion device comprises a third plurality of switches, wherein at least one of the third plurality of switches is connected to the zero resonant voltage switching technique circuit and the at least one inductor.
Claim 100
Dependent Claim
30 words
The bi-directional power converter of claim 98 , wherein the third plurality of switches form a bi-directional bridge between the zero resonant voltage switching technique circuit and the AC ports.
Claim 101
Dependent Claim
67 words
The bi-directional power converter of claim 99 , wherein at least two of the third plurality switches are concurrently closed and the third plurality of switches create a voltage measured at the at least one inductor having a waveform at a low frequency with a shape selected from the group consisting of a positive half of a sine wave and a negative half of the sine wave.
Claim 102
Dependent Claim
29 words
The bi-directional power converter of claim 100 , wherein the bi-directional AC-DC conversion device further comprises a filter connected to the at least one inductor and the AC ports.
Claim 103
Dependent Claim
22 words
The bi-directional power converter of claim 101 , wherein the filter reduces a switching noise produced by the third plurality of switches.
Claim 104
Dependent Claim
41 words
The bi-directional power converter of claim 102 , wherein a pulse modulation of at least one of the third plurality of switches determines the shape and an amplitude of the waveform of the voltage measured at the at least one inductor.
Claim 105
Dependent Claim
28 words
The bi-directional power converter of claim 103 , wherein the bi-directional AC-DC conversion device further comprises a plurality of output switches connected to the at least one inductor.
Claim 106
Dependent Claim
38 words
The bi-directional power converter of claim 104 , wherein at least one of the output switches is connected to at least one of the AC ports, and the AC ports transfer power between each of the DC ports.
Claim 107
Dependent Claim
27 words
The bi-directional power converter of claim 105 , wherein the AC ports are selected from the group consisting of a public power grid and an AC generator.
Claim 108
Dependent Claim
36 words
The bi-directional power converter of claim 106 , wherein at least one of the output switches is closed when the voltage measured at the at least one inductor is phase locked and within a predetermined range.
Claim 109
Dependent Claim
30 words
The bi-directional power converter of claim 107 , wherein the plurality of output switches are selected from the group consisting of a mechanical relay and a solid state semiconductor switch.
Claim 110
Dependent Claim
225 words
A bi-directional power converter comprising: a first bi-directional DC-DC conversion device, wherein in the first bi-directional DC-DC conversion device comprises a first plurality of bi-directional DC-DC converters; a plurality DC ports, wherein each DC port is connected to at least one of the first plurality of bi-directional DC-DC converters, wherein the plurality of DC ports transfer power to each other; a voltage medium capacitor connected to each of the first plurality of bi-directional DC-DC converters, wherein a first voltage measured at the voltage medium capacitor is greater than second voltages measured at each of the power supply ports; at least one second bi-directional DC-DC conversion device, wherein each of the second bi-directional DC-DC conversion devices comprises a second plurality of bi-directional DC-DC converters, wherein the first bi-directional DC-DC conversion device and each of the second bi-directional DC-DC conversion devices are connected in parallel; a third bi-directional DC-DC converter device, wherein the third bi-directional DC-DC conversion device is connected to the voltage medium capacitor; a voltage high capacitor, wherein the voltage high capacitor is connected to the third bi-directional DC-DC converter device; a bi-directional AC-DC conversion device, wherein the bi-directional AC-DC conversion device is connected to the voltage high capacitor; and a plurality of AC ports connected to at least one inductor, wherein the at least one inductor is connected to the bi-directional AC-DC conversion device.
Claim 111
Dependent Claim
225 words
A bi-directional power converter comprising: a first bi-directional DC-DC conversion device, wherein in the first bi-directional DC-DC conversion device comprises a first plurality of bi-directional DC-DC converters; a plurality DC ports, wherein each DC port is connected to at least one of the first plurality of bi-directional DC-DC converters, wherein the plurality of DC ports transfer power to each other; a voltage medium capacitor connected to each of the first plurality of bi-directional DC-DC converters, wherein a first voltage measured at the voltage medium capacitor is greater than second voltages measured at each of the power supply ports; at least one second bi-directional DC-DC conversion device, wherein each of the second bi-directional DC-DC conversion devices comprises a second plurality of bi-directional DC-DC converters, wherein the first bi-directional DC-DC conversion device and each of the second bi-directional DC-DC conversion devices are connected in parallel; a third bi-directional DC-DC converter device, wherein the third bi-directional DC-DC conversion device is connected to the voltage medium capacitor; a voltage high capacitor, wherein the voltage high capacitor is connected to the third bi-directional DC-DC converter device; a bi-directional AC-DC conversion device, wherein the bi-directional AC-DC conversion device is connected to the voltage high capacitor; and a plurality of AC ports connected to at least one inductor, wherein the at least one inductor is connected to the bi-directional AC-DC conversion device.
Claim 112
Dependent Claim
33 words
The bi-directional power converter of claim 109 , wherein the second voltage measured at at least one of the DC ports is not equal to the second voltages measured at another DC port.
References Cited (Backward Citations)
US4564896A
Cited
US4742441A
Cited
US5047910A
Cited
US5155672A
Cited
US5319536A
Cited
US5659465A
Cited
US5757633A
Cited
US6067243A
Cited
US5862047A
Cited
US5768116A
Cited
US6021052A
Cited
US6069804A
Cited
US6084790A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2005-02-04 | 2005-08-06 | 2006-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2009-02-04 | 2009-08-06 | 2010-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2013-02-04 | 2013-08-06 | 2014-02-05 | $7700.00 | Window Closed / Lapsed |