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Detecting device for detecting battery outlet voltage

  • US 4,024,415 A
  • Filed: 12/19/1975
  • Issued: 05/17/1977
  • Est. Priority Date: 12/20/1974
  • Status: Expired due to Term
First Claim
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1. A detecting device for detecting the output voltage of a battery or cell comprising:

  • voltage detecting means connectable to a battery whose output voltage is to be detected and including at least a pair of MOS transistors connected in a series such that at least one of said MOS transistors shifts to its conducting state in response to the battery output voltage falling below a predetermined value thereby providing one output signal indicative of adequate battery output voltage and shifts to its nonconducting state in response to the battery output voltage being above said predetermined value thereby providing another output signal indicative of unacceptably low battery output voltage; and

    a switching circuit comprised of a complementary MOS inverter connected to receive the output signals derived from said voltage detecting means and operative to switch states in response thereto to provide corresponding inverted output signals indicative of the battery output voltage level.

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