EP1107437A2
Expired / Lapsed
EP
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Power supply
Assignee: HP Inc
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Filing: 2000-11-29
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Granted: —
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Expires: 2020-11-29
Abstract
Abstract A high availability DC power supply (30) with isolated inputs comprises a first diode (36) having a first diode output and a second diode (38) having a second diode output, the diodes receiving isolated inputs from respective power source inputs (42, 50) via respective isolating transformers (44, 52). An output power bus (40) defined by the first diode output coupled to the second diode output is provided. The output power bus is still available to supply power upon the loss of the first isolated direct current power supply (32) or the loss of the second isolated direct current power supply (34).
Inventors
- 👤 Gerald Jerome Nelson
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-30 18:29
CPC Classifications
H; H02; H02M; H02M3/00; H02M3/02; H02M3/04; H02M3/10; H02M3/145; H02M3/155; H02M3/156; H02M3/158; H02M3/1584; H02J; H02J1/00; H02J1/10; H02J1/108; H02M7/00; H02M7/02; H02M7/04; H02M7/12; H02M7/21; H02M7/217; H02M7/23
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
96 words
A high availability power supply comprising: a first diode having a first diode output; a second diode having a second diode output; a first isolated direct current power supply coupled to the first diode; a second isolated direct current power supply coupled to the second diode; and an output power bus defined by the first diode output coupled to the second diode
output, wherein the output power bus is still available to supply power upon the loss of the
first isolated direct current power supply or the loss of the second isolated direct current
power supply.
Claim 2
Dependent Claim
67 words
The power supply of claim 1, further wherein the first isolated direct current power
supply includes a first isolating transformer having a first direct current power source input;
and the second isolated direct current power supply includes a second isolating transformer
having a second direct current power source input, wherein the second direct current power
source input is different from the first direct current power source input.
Claim 3
Dependent Claim
28 words
The power supply of claim 2, wherein the first direct current power source input
includes an alternating current power source input coupled to an AC to DC converter.
Claim 4
Dependent Claim
34 words
The power supply of claim 1, wherein the first isolated direct current power supply
is a voltage regulated power supply and the second isolated direct current power supply is a
voltage regulated power supply.
Claim 5
Dependent Claim
47 words
The power supply of claim 1, further comprising a first feedback control loop
control to the first isolated direct current power supply and a second feedback control loop
coupled to the second isolated direct current power supply for maintaining a desired voltage
at the output power bus.
Claim 6
Dependent Claim
118 words
A high availability power supply comprising: a first diode having a first diode input and a first diode output; a second diode having a second diode input and a second diode output; a first isolated direct current power supply including a first isolating transformer
coupled to the first diode input; a second isolated direct current power supply including a second isolating
transformer coupled to the second diode input; and an output power bus defined by the first diode output coupled to the second diode
output, wherein the output power bus maintains its availability to supply power upon the
loss of the first isolated direct current power supply or the loss of the second isolated direct
current power supply.
Claim 7
Dependent Claim
22 words
The power supply of claim 6, further comprising a voltage regulation control system
coupled to the first isolated direct current power supply.
Claim 8
Dependent Claim
20 words
The power supply of claim 7, further comprising a first feedback control loop
coupled to the voltage regulation control system.
Claim 9
Dependent Claim
59 words
The power supply of claim 6, wherein the first isolated direct current power supply
is coupled to a first input power source referenced to a first ground, and wherein the second
isolated direct current power supply is coupled to a second input power source referenced to
a second ground, wherein the first ground is different from the second ground.
Claim 10
Dependent Claim
41 words
The power supply of claim 9, wherein the first input power source is an AC power
source having a first phase, and the second input power source is an AC power source
having a second phase different from the first phase.
References Cited (Backward Citations)
No citation records indexed.
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