Power priority system

Details Power priority system Power priority system

1984-02-16

1986-07-08

Pellinen, A. D.

Electrical transmission or interconnection systems

Plural load circuit systems

Control of current or power

307 38, 307 41, 128419PS, H02J 114, A61N 1378

Patent

active

045995230

ABSTRACT:
A priority switching circuit for providing a minimum voltage to a voltage sensitive load while charging a second load drawing a high current includes a battery, comparator, capacitor, and a voltage regulator. The output of the comparator causes the battery to be connected to the capacitor whenever the voltage across the capacitor drops below a predetermined minimum and causes the battery to be connected to the high current load when the voltage across the capacitor rises to a predetermined maximum. The circuit provides a varied switching frequency as the internal impedance of the battery increases with age. The voltage regulator provides a constant reference voltage which is used by the comparator to provide the switching control signals.

REFERENCES:
patent: 4345604 (1982-08-01), Renirie
patent: 4408607 (1983-10-01), Maurer
patent: 4462407 (1984-07-01), Herscovici et al.

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