| 摘要 |
PURPOSE: A power supply device for saving power of a heater is provided to generally use the power supply device by replacing only the driving unit for heating. CONSTITUTION: A DC conversion and power factor controller(12) corrects a power factor of AC power and outputs DC. A heating power generator(13) converts power from the DC conversion and power factor controller to power for heating. An output unit(14) supplies the power from the heating power generator to a driving power source of a heater. A driving power unit(21) supplies power from a main circuit as the driving power. A driving amplifier(23) amplifies a control signal of a first control unit(25) and outputs the amplified control signal to the heating power generator. [Reference numerals] (11) Line filter; (12) Power factor controller; (13) High frequency power generator; (14) DC output unit; (21) Driving power unit; (22) Second control unit; (23) Driving amplifier; (24) Detector; (25) First control unit; (AA) Utility power source; (BB) DC power source; (CC) External device or network/communication protocol of device
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