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Power factor correction circuit for improving the power factor of an off-line switching power supply to comply with stipulated harmonic current rules
Power factor correction circuit for improving the power factor of an off-line switching power supply to comply with stipulated harmonic current rules
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机译：功率因数校正电路，用于提高离线开关电源的功率因数，使其符合规定的谐波电流规则
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摘要
A DC/DC converter can be a fly-back converter with a diode (D2) and a capacitor (C3) forming an output filter and a control circuit (21), while the input voltage of the bridge rectifier (DB1), measured across the input terminals (X), is the input current. The bias switching diode (D1) ensures current flows to an electrolytic capacitor (C1) only during the sinusoidal periods of the AC voltage.
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