Regulation circuit for a power converter and method of operation thereof
OwnerYimin Jiang, Hengchun Maoinventors
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Abstract
A regulation circuit for a voltage-fed power converter, a method of operation thereof and a power converter employing the circuit or the method. The power converter has an inverter switch adapted to transfer power to a transformer. In one embodiment, the regulation circuit includes a switching network coupled to a tapped winding of the transformer. The switching network is operable to vary a turns ratio of the transformer, thereby regulating an output voltage of the power converter.
Claims18
For use with a voltage-fed power converter having an inverter switch adapted to continuously transfer power to a transformer, a regulation circuit, comprising:
- a switching network, coupled to a tapped winding of said transformer, operable to vary a turns ratio of said transformer thereby regulating an output voltage of said power converter without substantially changing a duty cycle of said inverter switch, said switching network having a diode.
For use with a voltage-fed power converter having an inverter switch adapted to transfer power to a transformer, a method of regulating said power converter, comprising:
- operating a switching network, coupled to a tapped winding of said transformer, to vary a turns ratio of said transformer thereby regulating an output voltage of said power converter without substantially changing a duty cycle of said inverter switch, said switching network having a diode.
A voltage-fed power converter, comprising:
- a transformer having a tapped winding;
- a inverter switch adapted to transfer power from an input of said power converter to said transformer;
- a regulation circuit, including:
- a switching network, coupled to said tapped winding, operable to vary a turns ratio of said transformer thereby regulating an output voltage of said power converter without substantially changing a duty cycle of said inverter switch, said switching network having a diode.
Dependencies are inferred from the claim text.