Power converter

A power converter, comprising:

• an inverter module, comprising a first upper switch module, a first lower switch module, a second upper switch module, a second lower switch module, a first diode, a second diode, a third diode and a fourth diode, wherein the first diode is electrically connected to the first upper switch module, the second diode is electrically connected to the first diode and the first lower switch module, the third diode is electrically connected to the first diode and the second upper switch module, the fourth diode is electrically connected to the third diode and the second lower switch module, the inverter module is configured to receive a first alternating current voltage, a plurality of first control signals and a plurality of second control signals, and the first upper switch module, the first lower switch module, the second switch module and the second switch module are configured to transform the first alternating current voltage to a first direct current voltage and a second direct current voltage according to the first control signals and the second control signals;
• an inductor module, electrically connected to the first upper switch module, the first lower switch module, the second upper switch module and the second lower switch module, wherein the inductor module is configured to receive a second alternating current voltage to generate the first alternating current voltage;
• a control module, electrically connected to the first upper switch module, the first lower switch module, the second upper switch module, the second lower switch module and the inductor module, wherein the control module is configured to receive the first alternating current voltage and a predetermined voltage, and generate the first control signals to the first upper switch module and the first lower switch module and generate the second control signals to the second upper switch module and the second lower switch module according to the first alternating current voltage and the predetermined voltage;
• wherein in at least two of a plurality of driving periods, frequencies of the first control signals are different.