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Low voltage alert circuit

  • US 4,829,290 A
  • Filed: 01/04/1988
  • Issued: 05/09/1989
  • Est. Priority Date: 01/04/1988
  • Status: Expired due to Fees
First Claim
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1. A low voltage alert circuit having first and second input terminals, comprising in combination:

  • a three terminal relaxation device;

    a Zener diode coupled between the first and second input terminals of said low voltage alert circuit;

    a first resistor coupled between said Zener diode and a first terminal of said relaxation device;

    a capacitor coupled between said first terminal of said relaxation device and said second input terminal of the low voltage alert circuit;

    a second diode coupled between said first input terminal and a second terminal of said relaxation device; and

    a second resistor coupled between a third terminal of said relaxation device and an output terminal of said low voltage alert circuit.

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