Patent ID: 11942786
Assignee: SHANGHAI BRIGHT POWER SEMICONDUCTOR CO., LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 11:
12. A compensation circuit configured for use in a switched-mode power supply system for total harmonic distortion compensation in the switched-mode power supply system, comprising:
a voltage waveform detection module configured to detect a direct current (DC) voltage having a periodic dome-shaped waveform and output waveform information of the DC voltage,
the voltage waveform detection module configured to receive the waveform information and generate a compensation signal based on a rising phase information and a falling phase information of each cycle of the DC voltage derived from the waveform information, the compensation signal configured to indicate a compensation operation to be performed for the switched-mode power supply system to accomplish the total harmonic distortion compensation in the switched-mode power supply system,
wherein the compensation signal is configured to indicate adjusting an on-time and/or an off-time of a power switch in the switched-mode power supply system.