POWER SUPPLY CONFIGURED TO DELIVER AC WELDING-TYPE POWER
A welding-type power source includes a primary inverter (20) configured to generate a first AC power and a transformer (tx1) having a primary side configured to receive the first AC power and a secondary side configured to deliver a second AC power. The welding- type power source further includes a converter (18) configured to convert the second AC power to DC power and a half-bridge inverter configured to receive the DC power and having a first output and second output configured to deliver respective portions of an AC welding-type power to a welding output to generate a welding-type arc during a welding- type process. An inductance (L1) is connected at a first' end to the first output and the second output of the half-bridge inverter and connected at a second end to the welding output. Additionally, a circuit (26) is included that is configured to receive an energy stored in the inductance during delivery of one portion of the AC welding-type power and deliver the energy back to the inductance during delivery of another portion of the AC welding- type power.