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Battery charger controller

  • US 4,395,672 A
  • Filed: 04/02/1981
  • Issued: 07/26/1983
  • Est. Priority Date: 04/02/1981
  • Status: Expired due to Term
First Claim
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1. A controller for a battery charger having an alternating current input and a direct current output for connection to a battery to be charged, the controller comprising:

  • (a) electric switch means arranged for connection in the alternating current circuit of the charger for controlling activation and deactivation of the charger,(b) electric actuator means for said switch means having a direct current electric circuit,(c) voltage level comparison means having an output operatively connected to the actuator means and an input connected to the direct current output of the charger and operable when the battery voltage is below a predetermined level to cause the actuator means to keep the electric switch means open and the charger deactivated and operable when the battery voltage is above said predetermined voltage level to cause the actuator means to close the electric switch means and activate the charger, and(d) delay start switch means connected across the voltage level comparison means, and having open and closed positions and operable in one of said positions to prevent activation of the charger and in the other of said positions to allow activation of the charger.

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