Bidirectional battery state-of-charge monitor

Details Bidirectional battery state-of-charge monitor Bidirectional battery state-of-charge monitor

1986-01-13

1988-04-26

Eisenzopf, Reinhard J.

Electricity: measuring and testing

Electrolyte properties

Using a battery testing device

320 48, 324427, 340636, H02J 700

Patent

active

047407549

ABSTRACT:
The monitor is a circuit including an integrator for storing a state-of-charge measurement and a charge signal channel and a separate discharge signal channel both arranged for connection to receive a battery terminal voltage signal. The charge signal channel is operable in response to a battery terminal voltage signal above a charge threshold function voltage to produce a charge output signal to change the integrated measurement in the integrator in a first direction to indicate an increased charge. The discharge signal channel is operable in response to a battery terminal voltage signal below a discharge threshold function voltage to produce a discharge output signal to change the integrated measurement in the integrator in a second direction to indicate a decreased charge. Both the charge and discharge threshold function voltages are functions of the stored integrator state-of-charge measurement.

REFERENCES:
patent: 4151454 (1978-04-01), Iida
patent: 4258306 (1981-03-01), Bourke et al.
patent: 4288734 (1981-09-01), Finger
patent: 4388618 (1983-06-01), Finger

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