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

• Current Assignee: Leonard Buster Pohl
• Original Assignee: Leonard Buster Pohl
• Inventors: Pohl, Leonard Buster
• Primary Examiner(s): Strecker, Gerard R.
• Application Number:
  US05/686,060
• Time in Patent Office: 509 Days
• Field of Search: 324/51, 324/119, 324/122, 324/126, 324/127, 324/133, 340/255, 340/253 A, 340/253 B, 340/253 C, 340/256, 340/252 R
• US Class Current: 324/556
• CPC Class Codes: G01R 19/145 Indicating the presence of current or voltage
• CPC Class Codes: G01R 31/50 Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections testing of sparking plugs H01T13/58

Abstract

An assembly of components for monitoring an electrical circuit, and which truly indicates whether the circuit is working; the assembly including a voltage transformer in series with a minimum resistance load, a secondary winding of the transformer communicating with a full wave bridge rectifier connected through a gate, cathode, silicon controlled rectifier and silicon rectifier diode to a pilot lamp.

Claims

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.

2. The combination of electrical components as set forth in claim No. 1 wherein said gate controlled rectifier is a silicon controlled rectifier.

3. The combination of electrical components as set forth in claim No. 1 wherein said current sensing means provides a visual observation of current present.

4. The combination of electrical components as set forth in claim No. 1 wherein said current sensing means is activated by the application of said alternating voltage source and by the flow of current through said circuit to be monitored.