PULSE POWER SOURCE

摘要: PURPOSE:To improve the power source efficiency of a circuit for an electrical discharge machining equipment or like by providing parallel connection plurality AC-DC-HF-DC pulse inverters and applying discontinuous duration pulses each inverter to gap. CONSTITUTION:Commercial AC applied input terminal 1 passes through filters 21 22 is rectified rectifiers 31 32. The DC output converted into high frequency width tauon.s interval tauoff.s then transformed transformers 51 52 gap via 61 62. A ring counter 8 controls unit in time tauon interrupting tauoff. capacity can be reduced overlapped application voltage low changing transformation ratios 52, thus improving circuit.