SELECTIVE SECONDARY PHASE-SHIFTING CONTROL FOR RESONANT CONVERTERS

Abstract: an example power converter system includes an input and an output and a power converter between the input and the output. the power converter includes a transformer including n elemental transformers, primary-side switches coupled to a primary side of the transformer and operating based on a primary-side switching operation, and secondary-side switches coupled to each elemental transformer among the n elemental transformers at a secondary side of the transformer. the system further includes a controller configured to generate switching control signals for each secondary-side switches such that a switching operation in at least one elemental transformer among the n elemental transformers is phase-shifted with respect to the primary-side switching operation, while a switching operation in at least one different elemental transformer among the n elemental transformers is in-phase with respect to the primary-side switching operation.

Inventor(s): Pranav Raj Prakash, Ahmed Nabih, Qiang Li

CPC Classification: H02M3/3353 (APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF (transformers ; dynamo-electric converters ; controlling transformers, reactors or choke coils, control or regulation of electric motors, generators or dynamo-electric converters ))

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