L6561 is the improved version of the L6560 standard Power Factor Corrector. Fully compatible with the standard version, it has a superior performant multiplier making the device capable of working in wide input voltage range applications (from 85V to 265V) with an excellent THD.

Furthermore the start up current has been reduced at few tens of mA and a disable function has been implement ed on the ZCD pin, guaranteeing lower current consumption in stand by mode.

L6561属于集成电路（IC） > PFC（功率因数校正）。意法半导体（ST）集团制造生产的L6561PFC（功率因数校正）功率因数校正 (PFC) 是用于调整交流电路中的电压和电流之间的相位角，使之趋近于零的半导体器件。不同模式包括平均电流、边界导通、连续导通、临界导通、电流控制式频率折返、不连续和不连续导通，开关频率从 6 kHz 至 1.7 MHz 可调。