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US 2008/0157597 A1Published application
Multiple output isolated converter circuit
OwnerAnnabelle Pratt, Pavan Kumarinventors
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Abstract
In some embodiments, an N output isolated converter includes an isolated converter circuit having N+1 switch circuits, the isolated converter circuit being configured to receive an input voltage and to provide N output voltages, where N is two or more, and a control circuit to selectively provide control signals to the N+1 switch circuits at time intervals in accordance with the N output voltages. The N output isolated converter may include a single secondary transformer. Other embodiments are disclosed and claimed.
Claims25
An apparatus, comprising:
- an isolated converter circuit having no more than N+1 switch circuits, the isolated converter circuit being configured to receive an input voltage and to provide N output voltages, where N is two or more;
- and
- a control circuit to selectively provide control signals to the N+1 switch circuits at time intervals in accordance with the N output voltages,
- wherein the isolated converter circuit includes a single secondary transformer.
1 more element
A method, comprising:
- providing an isolated converter circuit having no more than N+1 switch circuits, wherein the isolated converter circuit includes a single secondary transformer;
- receiving an input voltage at the isolated converter circuit;
- providing N output voltages from the isolated converter circuit, where N is two or more;
- and
- selectively providing control signals to the N+1 switch circuits at time intervals in accordance with the N output voltages.
2 more elements
A system, comprising:
- a voltage regulator;
- an isolated converter circuit having no more than N+1 switch circuits, the isolated converter circuit being configured to receive an input voltage and to provide N output voltages, where N is two or more;
- and
- a control circuit to selectively provide control signals to the N+1 switch circuits at time intervals in accordance with the N output voltages,
- wherein one of the N output voltages is provided to the voltage regulator
- and wherein the isolated converter circuit includes a single secondary transformer.
3 more elements
Dependencies are inferred from the claim text.