Patent ID: 8860251
Filing Date: 2014-10-14
Classification: H02J

Abstract:
1. A power supply system with an automatic transfer function, the power supply system adapted to uninterruptibly supply power to a load and comprising: a main-power-loop apparatus electrically connected to a main power source; the main-power-loop apparatus comprising: a first primary relay switch; a first SCR switch electrically connected to the first primary relay switch and the load; a backup-power-loop apparatus electrically connected to a backup power source and electrically connected in parallel to the main-power-loop apparatus; the backup-power-loop apparatus comprising: a second primary relay switch; a second SCR switch electrically connected to the second primary relay switch and the load; and a control unit producing a plurality of driven signals to control the first primary relay switch, the first SCR switch, the second primary relay switch, and the second SCR switch.