Patent ID: 8964432
Filing Date: 2015-02-24
Classification: H02M

Abstract:
1. A power conversion system configured to supply multiphase power having a phase voltage respectively associated with each phase of the multiphase power, the power conversion system comprising: a plurality of inverters configured to generate PWM output voltages for each phase voltage in response to PWM control signals; a plurality of inductive components configured to receive the PWM output voltages to generate the phase voltages, wherein the PWM output voltages result in a plurality of circulating current flows in the plurality of inductive components; a voltage controller responsive to generate voltage modulation signals for each phase voltage; a plurality of current sharing channels respectively associated with each of the plurality of inductive components, wherein the plurality of current sharing channels are configured to generate current sharing modulation signals in response to the plurality of circulating current flows; and a carrier reference circuit configured to generate the PWM control signals in response to modulation signals, wherein the modulation signals are obtained by combining the current sharing modulation signals and voltage modulation signals.