Power Factor Correction Devices Are An Important Form Of Power Supply Design For Small Electronic Devices.

In the power supply designs of many low-power devices, the capacitor bank for power factor improvement circuit is widely adopted as a power electronic circuit scheme. The power correction device circuit can make the power supply more "grid-friendly" by adjusting the phase relationship between the AC input current and voltage, and reducing harmonic distortion in the current waveform.

For small devices relying on switching power supplies (SMPS), the rectification and filtering at the input often leads to severe distortion of the current waveform, making it out of sync with the voltage waveform. The power factor correction device industrial circuit can shape the current waveform passively or actively, making it closer to a sine wave and synchronized with the voltage.