CONTROL CIRCUIT FOR ADJUSTING LEADING EDGE BLANKING TIME AND POWER CONVERTING SYSTEM USING THE SAME CONTROL CIRCUIT

摘要

A control circuit for adjusting leading edge blanking time is disclosed. The control circuit is applied to a power converting system. The control circuit adjusts a leading edge blanking time according to a feedback signal relative to a load connected to the output terminal of the power converting system. An over-current protection mechanism of the power converting system is disabled within the leading edge blanking time.