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US 2016/0254757 A1Published application
Apparatus and Method for Multiple Primary Bridge Resonant Converters
AssigneeFuturewei Technologies, Inc.
InventorsHeping Dai, Daoshen Chen, Dianbo Fu
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Abstract
A converter comprises an input stage coupled to a power source, wherein the input stage comprises a plurality of power switches, a first resonant tank coupled to the input stage, wherein the first resonant tank is of a first Q value, a second resonant tank coupled to the input stage, wherein the second resonant tank is of a second Q value, a transformer coupled to the input stage through the first resonant tank and the second resonant tank and an output stage coupled to the transformer.
Claims20
A converter comprising:
- an input stage coupled to a power source, wherein the input stage comprises a plurality of power switches;
- a first resonant tank coupled to the input stage, wherein the first resonant tank is of a first Q value;
- a second resonant tank coupled to the input stage, wherein the second resonant tank is of a second Q value;
- a transformer coupled to the input stage through the first resonant tank and the second resonant tank;
- and
- an output stage coupled to the transformer.
3 more elements
A method comprising:
- providing a resonant converter, wherein the resonant converter comprises:
- an input stage coupled to a power source, wherein the input stage comprises a plurality of power switches;
- a first resonant tank coupled to a first portion of the plurality of power switches, wherein the first resonant tank is of a first Q value;
- a second resonant tank coupled to a second portion of the plurality of power switches, wherein the second resonant tank is of a second Q value;
- a transformer coupled to the first resonant tank and the second resonant tank;
- and
- an output stage coupled to the transformer;
- enabling the first portion of the plurality of power switches and disabling the second portion of the plurality of power switches during a startup process of the resonant converter;
- and
- enabling the second portion of the plurality of power switches after an output voltage of the resonant converter is greater than a first predetermined threshold and a load current of the resonant converter is greater than a second predetermined threshold.
7 more elements
A method comprising:
- providing a dual primary bridge resonant converter, wherein the dual primary bridge resonant converter comprises:
- a first full bridge switching network;
- and
- a first resonant tank coupled to the first full bridge switching network, wherein the first resonant tank is of a first Q value;
- a second full bridge switching network, wherein the second full bridge switching network and the first full bridge switching network are connected in parallel;
- and
- a second resonant tank coupled to the second full bridge switching network, wherein the second resonant tank is of a second Q value;
- a transformer coupled to the first resonant tank and the second resonant tank;
- and
- an output stage coupled to the transformer;
- and
- enabling the first full bridge switching network and disabling the second full bridge switching network during a startup process of the dual primary bridge resonant converter.
9 more elements
Dependencies are inferred from the claim text.