US6067241A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dual-output DC-DC power supply
Assignee: Power One Inc
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Filing: 1998-01-30
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Granted: 2000-05-23
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Expires: 2018-01-30
Abstract
Abstract A multi-output power supply having half-brick dimensions includes a forward converter circuit which receives a DC input voltage and in response to a first control signal generates a first DC output voltage at a first level; and a buck regulator circuit which receives the first DC output voltage from the forward converter circuit. In response to a second control signal, the buck regulator generates a second DC output voltage at a second level.
Inventors
- 👤 Qun Lu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 15:52
CPC Classifications
H; H02; H02M; H02M3/00; H02M3/02; H02M3/04; H02M3/08; H02M3/22; H02M3/24; H02M3/28; H02M3/325; H02M3/335; H02M3/33561
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
85 words
A multi-output power supply for generating first and second DC output voltages to respective loads, said power supply comprising: a first converter which receives a DC input voltage and generates the first DC output voltage; a first control circuit which controls the level of the first DC output voltage; a second converter which receives the first DC output voltage from the first converter circuit and generates the second DC output voltage; a second control circuit which controls the level of the second DC output voltage.
Claim 2
Dependent Claim
85 words
A multi-output power supply for generating first and second DC output voltages to respective loads, said power supply comprising: a first converter which receives a DC input voltage and generates the first DC output voltage; a first control circuit which controls the level of the first DC output voltage; a second converter which receives the first DC output voltage from the first converter circuit and generates the second DC output voltage; a second control circuit which controls the level of the second DC output voltage.
Claim 3
Dependent Claim
30 words
The multi-output power supply of claim 1 further comprising a housing within which the first converter, the second converter, the first control circuit and the second control circuit are disposed.
Claim 4
Dependent Claim
37 words
The multi-output power supply of claim 1 further comprising a synchronization circuit which applies the second control signal to the second converter at substantially the same time the first control signal is applied to the first converter.
Claim 5
Dependent Claim
39 words
The multi-output power supply of claim 1 further comprising circuitry connected to the first converter and second converter to maintain the difference between the first DC output voltage and the second DC output voltage below a predetermined threshold value.
Claim 6
Dependent Claim
14 words
The multi-output power supply of claim 4 wherein the circuitry includes a voltage regulator.
Claim 7
Dependent Claim
23 words
The multi-output power supply of claim 1 wherein the first converter is a forward converter and the second converter is a buck converter.
Claim 8
Dependent Claim
174 words
A multi-output power supply for generating first and second DC output voltages to respective ones of the loads at a predetermined total output current level, said power supply comprising: a first converter which receives a DC input voltage and generates the first DC output voltage, the first converter, in operation, providing a first variable output current level in a range between zero and the predetermined total current level of the multi-output power supply; a first control circuit which controls the level of the first DC output voltage and the first variable output current level; a second converter which receives the first DC output voltage from the first converter circuit and generates the second DC output voltage, the second converter, in operation, providing a second variable output current level in a range between zero and the difference between the total current level of the multi-output power supply and the first variable current level; and a second control circuit which controls the level of the second DC output voltage and the second variable output current level.
Claim 9
Dependent Claim
174 words
A multi-output power supply for generating first and second DC output voltages to respective ones of the loads at a predetermined total output current level, said power supply comprising: a first converter which receives a DC input voltage and generates the first DC output voltage, the first converter, in operation, providing a first variable output current level in a range between zero and the predetermined total current level of the multi-output power supply; a first control circuit which controls the level of the first DC output voltage and the first variable output current level; a second converter which receives the first DC output voltage from the first converter circuit and generates the second DC output voltage, the second converter, in operation, providing a second variable output current level in a range between zero and the difference between the total current level of the multi-output power supply and the first variable current level; and a second control circuit which controls the level of the second DC output voltage and the second variable output current level.
Claim 10
Dependent Claim
30 words
The multi-output power supply of claim 7 further comprising a housing within which the first converter, the second converter, the first control circuit and the second control circuit are disposed.
Claim 11
Dependent Claim
44 words
The multi-output power supply of claim 7 further comprising a synchronization circuit disposed within the housing to ensure that the second control signal is applied to the second converter at substantially the same time the first control signal is applied to the first converter.
Claim 12
Dependent Claim
47 words
The multi-output power supply of claim 7 further comprising a voltage regulator circuit disposed within the housing and connected to the first converter and second converter to maintain the difference between the first DC output voltage and the second DC output voltage below a predetermined threshold value.
Claim 13
Dependent Claim
23 words
The multi-output power supply of claim 7 wherein the first converter is a forward converter and the second converter is a buck converter.
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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) | 2003-05-23 | 2003-11-22 | 2004-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2007-05-23 | 2007-11-22 | 2008-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2011-05-23 | 2011-11-22 | 2012-05-23 | $7700.00 | Window Closed / Lapsed |