Power conversion method and power conversion device

A power conversion method for a power conversion device having a class-E power conversion circuit, wherein:

• the class-E power conversion circuit has a class-E inverter circuit and a rectifier circuit connected to the class-E inverter circuit and rectifying a high-frequency alternating current generated by the class-E inverter circuit to a direct current or a low-frequency AC voltage;
• the class-E inverter circuit comprises an AC voltage input unit into which an AC voltage is input, a switch for switching the current on/off, an input choke inductor connected to at least one end of the switch and the AC voltage input unit, and an LC resonance circuit connected to the rectifier circuit;
• comprising
• setting an On-Duty of the switch based on an output current or output power output from the rectifier circuit.

A power conversion device having a class-E power conversion circuit, wherein:

• the class-E power conversion circuit has a class-E inverter circuit and a rectifier circuit connected to the class-E inverter circuit and rectifying a high-frequency alternating current generated by the class-E inverter circuit to a direct current or a low-frequency AC voltage;
• the class-E inverter circuit comprises an AC voltage input unit into which an AC voltage is input, a switch for switching the current on/off, an input choke inductor connected to at least one end of the switch and the AC voltage input unit, and an LC resonance circuit connected to the rectifier circuit;
• and
• an On-Duty of the switch is set based on an output current or output power output from the rectifier circuit.