DC–DC Buck Converter Using Analog Coarse-Fine Self-Tracking Zero-Current Detection Scheme

This brief proposes a dc-dc buck converter using an analog coarse-fine self-tracking zero-current detection (ASTZCD) scheme. The AST-ZCD detects the zero-current by measuring the voltage level across a freewheeling transistor. It adjusts the nMOS turn-off time using an amplifier, capacitors, and cur... View More