Patent ID: 8890356

Claim:
A power conversion installment kit for plug-in HEV, comprising at least: a battery pack, used to generate a DC voltage; and an inverter power conversion module, with its input end linked to the battery pack, and its output end linked to a DC motor of the HEV, used to convert the DC voltage into a DC high voltage; the required DC high voltage shall be capable of at least driving the DC motor wherein the inverter power conversion module includes at least: a voltage-regulating module, connected with an anode of the battery pack, and used to regulate the DC voltage for providing a stable DC low voltage; a high-frequency oscillating circuit, with a first end linked to the voltage-regulating module, and powered by the DC low voltage to output a high-frequency small signal, and a second end linked to a high-frequency power amplifier circuit; wherein the high-frequency power amplifier circuit is used to receive and to amplify the high-frequency small signal, and to generate a high-power high-frequency signal; a high-frequency transformer, used to receive the high-power high-frequency signal and boost to a high voltage; a rectifier circuit, bridged onto a secondary end of the high-frequency transformer, with its output end linked to the DC motor of the HEV; the rectifier circuit rectifies the high voltage and then outputs the required DC high voltage to drive the DC motor; wherein the rectifier circuit is a bridged rectifier circuit composed of four rectifier diodes; wherein the inverter power conversion module also including at least: a reference generator circuit, with a first end linked to the voltage-regulating module, and the second end linked to a cathode of the battery pack, helping to provide a reference voltage for a decision circuit module; a sampling decision circuit, comprising of a first and a second sampling circuits and the decision circuit module; the first sampling circuit is connected between the anode and the cathode of the battery pack, allowing for sampling of the output voltage of the battery pack to acquire a first sampling value; and, the first sampling value is sent to the decision circuit module; the second sampling circuit is linked to the output end of the rectifier circuit, and used to sample the required DC high voltage of the rectifier circuit to acquire a sampling voltage, and also send the sampling voltage to the decision circuit module; an oscillating control circuit, linked to the decision circuit module and the high-frequency oscillating circuit, used to receive the output of the decision circuit module, and to control the operation of the high-frequency oscillating circuit.