MULTI-PHASE INTERLEAVED CONVERTER AND CONTROL METHOD THEREOF

摘要

A multi-phase interleaved converter includes n sub-circuits of phases, a current controller and a balancing controller. The n sub-circuits of phases have inputs connected in parallel and outputs connected in parallel in order to convert a direct current (DC) or alternating current (AC) input voltage of one level into a DC or AC output voltage of another level. The current controller receives a current control command and a phase current value of a particular sub-circuit of a particular phase among the n sub-circuits of the respective phases to output a control signal for controlling the particular sub-circuit of the particular phase. The balancing controller receives phase current values of the n sub-circuits of the respective phases and receives a control signal output from the current controller to adjust the duty ratios of control signals applied to the other sub-circuits.

主权项

1. A multi-phase interleaved converter, comprising:
n sub-circuits of phases configured to have inputs connected in parallel and outputs connected in parallel in order to convert a direct current (DC) or alternating current (AC) input voltage of one level into a DC or AC output voltage of another level; a current controller configured to: i) receive a current control command and a phase current value of a particular sub-circuit of a particular phase among the n sub-circuits of the respective phases and ii) output a control signal for controlling the particular sub-circuit of the particular phase; and a balancing controller configured to: i) receive phase current values of the n sub-circuits of the respective phases and the control signal output from the current controller and ii) adjust duty ratios of control signals applied to the other sub-circuits based on the received phase current values of the sub-circuits of the respective phases and the received control signal of the current controller.