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Circuit monitor to determine power on and circuit working

  • US 4,052,664 A
  • Filed: 05/13/1976
  • Issued: 10/04/1977
  • Est. Priority Date: 05/13/1976
  • Status: Expired due to Term
First Claim
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1. A circuit monitoring means, comprising an assembly of electrical components in an eletrical circuit including a voltage transformer having a primary, or high, voltage side and a secondary, or low, voltage side, a full wave rectifying means, a resistor, a gate controlled rectifier, a diode and a current sensing means wherein the primary side of said voltage transformer is connected in series with a circuit to be monitored, and the series connection consisting of the primary side of said transformer and the load to be monitored are connected across an alternating voltage source, and the secondary side of said transformer is connected to said full wave rectifying means and the positive output of said full wave rectifying means is connected through said resistor to the gate of said gate controlled rectifier and the negative side of said full wave rectifying means is connected to the neutral side of said alternating voltage source, and the said current sensing means, diode and gate controlled rectifier are connected in series between the primary side of said voltage transformer and the neutral side of said alternating voltage source.

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