US6650560B2
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dual input AC and DC power supply having a programmable DC output utilizing single-loop optical feedback
Assignee: Igo Inc
•
Filing: 2002-08-22
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Granted: 2003-11-18
•
Expires: 2022-08-22
Abstract
Abstract A dual input AC/DC power converter ( 10 ) having dual inputs ( 12,14 ) adapted to receive both an AC and DC input and provide a selectable DC voltage output ( 16 ) and a second DC output ( 18 ). The dual input AC/DC power converter ( 10 ) comprises a power converter circuit ( 20 ) having an AC-to-DC converter ( 22 ), a DC-to-DC booster converter ( 24 ), a feedback circuit ( 26 ), a filter circuit ( 25 ) and a DC-to-DC buck converter ( 28 ). Advantageously, the power converter ( 10 ) resolves many of the system management problems associated with carrying all of the different interface components necessary to power a wide variety of mobile products from either an AC or DC power supply. In addition, the feedback circuit ( 26 ) comprises single feedback loop having stacked photocouplers, one (PH 1 ) controlling the AC-to-DC converter ( 22 ) and the other (PH 3 ) controlling the DC-to-DC booster converter ( 24 ), to select the overall DC output voltage.
Inventors
- 👤 Gilbert MacDonald
- 👤 Richard Garrison Dubose
- 👤 Chia hua Wang
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 12:30
CPC Classifications
H; H02; H02M; H02M1/00; H02M1/10; G; G06; G06F; G06F1/00; G06F1/26; G06F1/263; H02J; H02J9/00; H02J9/04; H02J9/06; H02J9/061; H02M3/00; H02M3/22; H02M3/24; H02M3/28; H02M3/325; H02M3/335; H02M3/33561
Claims Analysis
Total Claims: 33
Claim 1
Independent Claim
107 words
A power converter, comprising: a first circuit converting an AC input voltage to a first predetermined DC output voltage; a second circuit converting a DC input voltage to a second predetermined DC output voltage; and a third circuit having a feedback circuit comprising a single feedback loop, said third circuit receiving said first and second predetermined output voltages and providing a selectable DC output voltage at a first output, wherein said single feedback loop is adapted to regulate both said first and second circuits to provide said selectable DC output voltage when said AC and DC input voltages are supplied to respective said first and second circuits.
Claim 2
Dependent Claim
107 words
A power converter, comprising: a first circuit converting an AC input voltage to a first predetermined DC output voltage; a second circuit converting a DC input voltage to a second predetermined DC output voltage; and a third circuit having a feedback circuit comprising a single feedback loop, said third circuit receiving said first and second predetermined output voltages and providing a selectable DC output voltage at a first output, wherein said single feedback loop is adapted to regulate both said first and second circuits to provide said selectable DC output voltage when said AC and DC input voltages are supplied to respective said first and second circuits.
Claim 3
Dependent Claim
17 words
The power converter of claim 1 wherein said feedback circuit includes respective first and second optical devices.
Claim 4
Dependent Claim
15 words
The power converter of claim 2 wherein said optical devices are photo-couplers coupled in series.
Claim 5
Dependent Claim
29 words
The power converter of claim 2 wherein said respective first and second predetermined DC output voltages are determined as a function of said respective first and second optical devices.
Claim 6
Dependent Claim
35 words
The power converter of claim 2 wherein said first optical device is coupled to said first circuit, wherein said first circuit, in response to said AC input voltage, provides said first predetermined DC output voltage.
Claim 7
Dependent Claim
35 words
The power converter of claim 2 wherein said second optical device is coupled to said second circuit, wherein said second circuit, in response to said DC input voltage, provides said second predetermined DC output voltage.
Claim 8
Dependent Claim
25 words
The power converter of claim 2 wherein said first circuit and said second circuit comprise pulse width modulated controllers controlled by said respective optical device.
Claim 9
Dependent Claim
41 words
The power converter of claim 1 further comprising a fifth circuit comprising a filter circuit adapted to filter said first and second predetermined DC output voltages and provide a respective first and second filtered DC output voltage at a common node.
Claim 10
Dependent Claim
26 words
The power converter of claim 1 wherein said first and second predetermined DC output voltages are substantially the same and are provided to a common node.
Claim 11
Dependent Claim
44 words
The power converter of claim 1 comprising a fourth circuit coupled to said first output and providing a second DC output voltage at a second output, wherein said second DC voltage output is independent of, and substantially lower than said selectable DC output voltage.
Claim 12
Dependent Claim
35 words
The power converter of claim 1 wherein said first circuit comprises a AC-to-DC flyback converter, wherein said AC-to-DC flyback converter is adapted to provide a DC output voltage of between 15 VDC and 24 VDC.
Claim 13
Dependent Claim
35 words
The power converter of claim 1 wherein said second circuit comprises a DC-to-DC boost converter, wherein said DC-to-DC boost converter is adapted to provide a DC output voltage of between 15 VDC and 24 VDC.
Claim 14
Dependent Claim
38 words
The power converter of claim 1 wherein said fourth circuit comprises a DC-to-DC buck converter providing said second DC output voltage, said DC-to-DC buck converter providing said second DC output voltage of between 3 VDC and 15 VDC.
Claim 15
Dependent Claim
46 words
The power converter of claim 1 wherein said first and second predetermined DC output voltages of said respective first and second circuit are established via said removable program module, wherein said removable program module comprises a key adapted to be removably coupled to said power converter.
Claim 16
Dependent Claim
34 words
The power converter of claim 1 wherein said removable program module comprises a key having a resistor, wherein said first and second DC output voltage are a function of the value of said resistor.
Claim 17
Dependent Claim
14 words
The power converter of claim 15 wherein said key establishes an output voltage function.
Claim 18
Dependent Claim
15 words
The power converter of claim 15 wherein said key establishes an output current limiting function.
Claim 19
Dependent Claim
27 words
The power converter of claim 1 wherein said first circuit is adapted to receive an AC input voltage having a range of 90 VAC to 265 VAC.
Claim 20
Dependent Claim
27 words
The power converter of claim 1 wherein said second circuit is adapted to receive a DC input voltage having a range of 11 VDC to 16 VDC.
Claim 21
Dependent Claim
24 words
The power converter of claim 1 wherein said first and second predetermined DC output voltages are programmable as a function of said program module.
Claim 22
Dependent Claim
37 words
The power converter of claim 1 wherein said fourth circuit comprises a second removable program module, wherein said second DC output voltage at said second output is a function of said different associated second removable program modules.
Claim 23
Dependent Claim
23 words
The power converter of claim 1 wherein said fifth circuit further includes a protection circuit, said protection circuit provides an over-voltage protection function.
Claim 24
Dependent Claim
29 words
The power converter of claim 1 wherein the first circuit and the second circuit receive their respective AC input voltage and DC input voltages at a common single connector.
Claim 25
Dependent Claim
82 words
A power converter, comprising: a first circuit converting an AC input voltage to a first predetermined DC output voltage; a second circuit converting a DC input voltage to a second predetermined DC output voltage; a third circuit having a single optical feedback loop and receiving said first and second predetermined DC voltages and, in response thereto, providing a selectable DC output voltage at a first output, wherein said selectable DC output voltage is established as a function of a removable program module.
Claim 26
Dependent Claim
82 words
A power converter, comprising: a first circuit converting an AC input voltage to a first predetermined DC output voltage; a second circuit converting a DC input voltage to a second predetermined DC output voltage; a third circuit having a single optical feedback loop and receiving said first and second predetermined DC voltages and, in response thereto, providing a selectable DC output voltage at a first output, wherein said selectable DC output voltage is established as a function of a removable program module.
Claim 27
Dependent Claim
17 words
The power converter of claim 24 wherein said feedback circuit includes respective first and second optical devices.
Claim 28
Dependent Claim
15 words
The power converter of claim 24 wherein said optical devices are photo-couplers coupled in series.
Claim 29
Dependent Claim
29 words
The power converter of claim 24 wherein said respective first and second predetermined DC output voltages are determined as a function of said respective first and second optical devices.
Claim 30
Dependent Claim
34 words
The power converter of claim 24 wherein said first optical device is coupled to said first circuit, wherein said first circuit, in response to said AC input voltage, provides said first DC output voltage.
Claim 31
Dependent Claim
34 words
The power converter of claim 24 wherein said second optical device is coupled to said second circuit, wherein said second circuit, in response to said DC input voltage, provides said second DC output voltage.
Claim 32
Dependent Claim
26 words
The power converter of claim 24 wherein said first circuit and said second circuit comprise pulse width modulated controllers controlled by said single optical feedback loop.
Claim 33
Dependent Claim
44 words
The power converter of claim 24 comprising a fourth circuit coupled to said first output and providing a second DC output voltage at a second output, wherein said second DC voltage output is independent of, and substantially lower than said selectable DC output voltage.
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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) | 2006-11-17 | 2007-05-19 | 2007-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2010-11-17 | 2011-05-19 | 2011-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2014-11-17 | 2015-05-19 | 2015-11-18 | $7700.00 | Window Closed / Lapsed |