Patent ID: 6369517
Filing Date: 2002-04-09
Classification: H05B,Y02B

Abstract:
An electronic switch comprising:alternating-current (A.C.) terminals for receiving alternating current for powering an A.C. device; a rectifier, coupled to the A.C. terminals, for generating a rectified D.C. voltage; a triggered current switch, coupled to at least one of the A.C. terminals, for switching the alternating current to the A.C. device; a coupler for coupling a trigger pulse to the triggered current switch, the trigger pulse causing the triggered current switch to switch the alternating current; a current limiter, receiving the rectified D.C. voltage from the rectifier, for generating a charging-current pulse for low voltages of the rectified D.C. voltage, but limiting current at high voltages above the low voltages; a charge store, receiving the charging-current pulse from the current limiter, for storing charge, the charge store outputting charge to an internal D.C. supply when the current limiter limits current at the high voltages; and D.C. logic, powered by the internal D.C. supply from the charge store, the D.C. logic generating the trigger pulse coupled to the triggered current switch, whereby the D.C. logic is powered by the charge store that is charged by the charging-current pulse for low voltages.