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Remote load selector

  • US 4,322,632 A
  • Filed: 03/24/1980
  • Issued: 03/30/1982
  • Est. Priority Date: 03/24/1980
  • Status: Expired due to Term
First Claim
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1. A remote load selector circuit for use with a system having a manually operable power switch coupled by an electrical transmission line to a plurality of remotely located loads, said selector circuit comprising:

  • a plurality of gate controllable switching devices, each of said plurality of switching devices having power terminals adapted for connection in series with a selected one of said remotely located loads and having a gate input for controlling conduction between said power terminals;

    a plurality of bistable multivibrators, each of said multivibrators having at least one input for receiving a power transition signal and having at least one output coupled to the gate input of a selected one of said plurality of gate controllable switching devices; and

    ,transition detecting means adapted for connection to said transmission line for providing a power transition signal in response to the application or removal of power to or from the transmission line portion connecting said manually operable power switch to said plurality of remotely located loads in response to the closing or opening of said manually operable power switch, and said transition detecting means being coupled to at least one input of each multivibrator for changing the output state of at least one of said plurality of bistable multivibrators in response to the power transition signal.

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