Patent US5347191A successfully refreshed from Google Patents.
US5347191A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dynamic transformer power supply
Assignee: ALTOR Inc A CORP OF
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Filing: 1992-06-26
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Granted: 1994-09-13
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Expires: 2012-06-26
Abstract
Abstract In a power supply for use with electronic equipment, the power supply includes a dynamic transformer having a single rotary element with permanent magnets attached, magnetic bearings to support the rotary element during operation, primary and secondary windings linking the flux of the magnets, circuit means to drive the primary windings, and means of using the secondary AC output to provide DC power at the point of use.
Inventors
- 👤 Jonathan R. Wood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:59
CPC Classifications
H; H02; H02K; H02K7/00; H02K7/02; H02K7/025; H02J; H02J3/00; H02J3/28; H02J3/30; H02K47/00; H02K47/18; H02K47/20; H02K7/08; H02K7/09; Y; Y02; Y02E; Y02E60/00; Y02E60/16
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
124 words
A dynamic transformer for converting a source of AC or DC input power to AC or DC output power for use in electronic equipment, said dynamic transformer comprising: a primary winding; a secondary winding, physically separated from the primary winding and having no electromagnetic coupling with the primary winding; a relatively high speed rotary element, cooperating with two sets of permanent magnets, the flux of the first set of permanent magnets being linked to said primary winding and the flux of the second set of permanent magnets being linked to said secondary winding; bearing means for supporting said rotary element during operation; and means for simultaneously delivering the input and output of electrical energy to and from said primary winding and said secondary winding.
Claim 2
Dependent Claim
124 words
A dynamic transformer for converting a source of AC or DC input power to AC or DC output power for use in electronic equipment, said dynamic transformer comprising: a primary winding; a secondary winding, physically separated from the primary winding and having no electromagnetic coupling with the primary winding; a relatively high speed rotary element, cooperating with two sets of permanent magnets, the flux of the first set of permanent magnets being linked to said primary winding and the flux of the second set of permanent magnets being linked to said secondary winding; bearing means for supporting said rotary element during operation; and means for simultaneously delivering the input and output of electrical energy to and from said primary winding and said secondary winding.
Claim 3
Dependent Claim
12 words
The apparatus of claim 1 wherein said bearing means includes magnetic bearings.
Claim 4
Dependent Claim
13 words
The apparatus of claim 1 wherein said rotary element further includes a flywheel.
Claim 5
Dependent Claim
13 words
The apparatus of claim 2 wherein said rotary element further includes a flywheel.
Claim 6
Dependent Claim
27 words
The apparatus of claim 1 wherein said means for simultaneously delivering the input and output further includes means for regulating the output voltage of the secondary winding.
Claim 7
Dependent Claim
30 words
The apparatus of claim 5 wherein the means for regulating includes means of rectifying and distributing the secondary output as an intermediate DC voltage for use with DC-DC converter modules.
Claim 8
Dependent Claim
16 words
The apparatus of claim 5 wherein the means for regulating includes a magnetic amplifier rectification device.
Claim 9
Dependent Claim
15 words
The apparatus of claim 5 wherein the means for regulating includes a phase-controlled rectification device.
Claim 10
Dependent Claim
29 words
The apparatus of claim 5 wherein the means for regulating includes means for distributing a secondary AC output as an intermediate AC voltage for use with AC-DC converter modules.
Claim 11
Dependent Claim
27 words
The apparatus of claim 2 wherein the means for simultaneously delivering the input and the output further includes means for regulating the output of the secondary winding.
Claim 12
Dependent Claim
30 words
The apparatus of claim 10 wherein the means for regulating includes means for rectifying and distributing the secondary output as an intermediate DC voltage for use with DC-DC converter modules.
Claim 13
Dependent Claim
16 words
The apparatus of claim 10 wherein the means for regulating includes a magnetic amplifier rectification device.
Claim 14
Dependent Claim
15 words
The apparatus of claim 10 wherein the means for regulating includes a phase-controlled rectification device.
Claim 15
Dependent Claim
29 words
The apparatus of claim 10 wherein the means for regulating includes means of distributing a secondary AC output as an intermediate AC voltage for use with AC-DC converter modules.
Claim 16
Dependent Claim
47 words
The apparatus of claim 2 wherein the rotary element further includes a cylindrical member having the permanent magnets attached on its inside, arranged to give electromagnetic coupling with the primary and secondary windings means which are mounted on a stationary central shaft passing inside the cylindrical member.
Claim 17
Dependent Claim
34 words
The apparatus of claim 15 wherein the magnetic bearing means is disposed on the outside of the cylindrical member, such that magnetic bearing targets are disposed on an exterior surface of the cylindrical member.
Claim 18
Dependent Claim
34 words
The apparatus of claim 15 wherein the magnetic beating means is disposed on the inside of the cylindrical member, such that magnetic beating targets are disposed on an interior surface of the cylindrical member.
Claim 19
Dependent Claim
35 words
The apparatus of claim 2 wherein the rotary element further includes the permanent magnets disposed on its outside, arranged to give electromagnetic coupling with the primary and secondary windings mounted inside a stationary cylindrical element.
Claim 20
Dependent Claim
12 words
The apparatus of claim 1 wherein said bearing means employs ferrofluidic bearings.
Claim 21
Dependent Claim
12 words
The apparatus of claim 1 wherein said beating means employs air bearings.
Claim 22
Dependent Claim
12 words
The apparatus of claim 1 wherein said beating means employs ball bearings.
Claim 23
Dependent Claim
12 words
The apparatus of claim 1 wherein said permanent magnets include neodymium-iron material.
Claim 24
Dependent Claim
12 words
The apparatus of claim 1 wherein said permanent magnets include samarium-cobalt material.
Claim 25
Dependent Claim
13 words
The apparatus of claim 1 wherein said rotary element includes spent uranium material.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-09-12 | 1998-03-14 | 1998-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-09-12 | 2002-03-14 | 2002-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-09-12 | 2006-03-14 | 2006-09-13 | $7700.00 | Window Closed / Lapsed |