A sound and light control energy-saving switch circuit

  
380V air flow I. Power through step-down transformer, rectifier output 9V DC oxime arrested. When the pump working fine basket lr. uT shake F 41Sf button S. * Circuit TWH8778 s
A sound and light control energy-saving switch circuit - schematic

unset is triggered - ~ .iHi, photoelectric coupling device to the bidirectional trigger IJr care mound i catch lll signal, bite Zhu silicon 3C: T i via conduction, variable flood contactor work. Its contact closed sets, connected to electric electromechanical {busy, pumping out water pumps. After pumping the pump nozzle from the water A. B ends shorted. TWH8778 insurance protection is turned on, then release the S. Pump still working properly. If the child after ten hours of continuous pumping after the ball well towel water is drained, A, B intoxicated end Anhydrous disconnected,} F switch circuit TWIf8778 is set. And cut, triac also j ; conduction, contactor K release, pump motor will stop working. When installing, A, B two electric rice can be installed in place pump landscape mouth. Indiscriminately using optical coupling device in abundance to L security point of view, to prevent resistance resistor R. take a small electric shock accident.




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