Battery monitoring circuit

  • US 5,266,880 A
  • Filed: 04/06/1992
  • Issued: 11/30/1993
  • Est. Priority Date: 04/06/1992
  • Status: Expired due to Term
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First Claim
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1. A method of determining the discharge level of a battery providing operating power for a portable transceiver, the method comprising the steps of:

  • operating the portable transceiver in a plurality of different current consuming states;

    assigning a plurality of representative values, each one of the plurality of representative values representing a level of the current consumed by the transceiver from the battery while operating in each one of the plurality of current consuming states;

    accumulating a total representative value from each one of the plurality of representative values for obtaining a level of total current consumed by the transceiver from the battery, the accumulated total representative value being indicative of accumulated time periods during which the portable transceiver operates in each of said current consuming states; and

    assigning a level for the total representative value in the absence of said plurality of representative values, the assigned total representative value being indicative of the discharge level of the battery when said battery is partially charged.

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