LLC resonant converter

The utility model provides a LLC resonant converter, including half -bridge inverter circuit, resonant inductance, excitation inductance, clamp circuit, resonant capacitor circuit, isolation transformer and bridge type rectifier circuit, excitation inductance and isolation transformer's former limit is parallelly connected, the one end on half -bridge inverter circuit's the former limit of midpoint connection isolation transformer, and the resonant inductance setting is on this circuit, clamp circuit includes two diodes, and is parallelly connected with the direct current side of half -bridgedc -to -ac converter after two diode string ally oneself with, the resonant capacitor circuit includes two condensers, and the both ends of half -bridge inverter circuit direct current side are connected respectively at the both ends after two condensers are established ties, and the common port of two diodes and the other end on the former limit of isolation transformer are connected to the common port of two electric ca