[Purpose] To provide a capacitive welder capable of sufficiently resetting the magnetism of a welding transformer and capable of quickly charging a welding capacitor and also provide a method of charging the capacitive welder. [Solution] The capacitive wel...

An alternating current conversion method and system that can adapt to varying voltages of the direct current sources comprise a first and second connection arrangements for the voltage sources (1) such that the direct current can be supplied to the DC/AC c...