A HIGH FREQUENCY FULL BRIDGE SERIES RESONANT INVERTER WITH AC INPUT SOURCE

摘要

A high frequency full bridge series resonant inverter with AC input source comprising an AC input source (S), an AC filter (F), four numbers of anti-parallel diodes (D1, D2, D3, D4), a capacitor (C), four numbers of metal oxide semiconductor field effect transistor (MOSFET 1, 2,3,4) wherein the AC supply is directly applied to the inverter. The inverter has four metal oxide semiconductor field effect transistor (MOSFET) switches (MOSFET 1,2,3 and 4) for resulting the current flowing through the load in direction X to Y for half cycles and making the current flowing in the reverse direction (Y to X) for next half cycle producing a high frequency alternating voltage across the load wherein four numbers of anti-parallel diodes (D1, D2, D3, D4) are disposed in the arrangement and connected to the MOSFETS for serving the purpose of rectification when the rectified DC voltage produced across the capacitor (C) is converted to AC by the inverter operating at high switching frequency making the arrangement acting like an AC to AC converter wherein the inverter operating at high switching frequency produces a high frequency alternating voltage across the load.