Battery state of charge gauge

Details Battery state of charge gauge Battery state of charge gauge

1975-02-11

1976-03-23

Miller, J. D.

Electricity: battery or capacitor charging or discharging

Serially connected batteries or cells

With discharge of cells or batteries

320 48, 324 295, H02J 700, G01N 2742

Patent

active

039462994

ABSTRACT:
A circuit for detecting and indicating the actual state of charge of a storage battery in response to signals sampled from various points in the circuit powered by the battery. Such circuit is adapted to calculate the open circuit voltage of the battery, it being realized that the open circuit voltage is directly proportional to the battery state of charge. A function generator is constructed to simulate the characteristic curve of the battery relating the internal resistance to the percent charge. Feedback is provided from the output of the indicating circuitry to the bias point of the function generator for causing the generator to produce a signal related to the actual internal resistance of the battery. The circuit is adapted to provide a reliable indication of the amount of usable energy remaining in the battery, irrespective of the conditions under which the battery was discharged.

REFERENCES:
patent: 3676770 (1972-07-01), Sharaf et al.
patent: 3778702 (1973-12-01), Finger
patent: 3886428 (1975-05-01), Macharg
patent: 3886442 (1975-05-01), Chiku et al.

Affiliated with

Also associated with

Rating

Battery state of charge gauge does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Battery state of charge gauge, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Battery state of charge gauge will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1645621