Isolated power supply system and method

Details Isolated power supply system and method Isolated power supply system and method

1986-07-08

1987-09-15

Hickey, R. J.

Electricity: battery or capacitor charging or discharging

Serially connected batteries or cells

With discharge of cells or batteries

307 66, 320 14, 320 15, 320 38, H02J 700, H02J 900

Patent

active

046942378

ABSTRACT:
In an embodiment for supplying power to sensitive telecommunications modules in an environment rich in radiated RF emissions, the AC power line is connected to a battery charger which is alternately connected to two rechargeable batteries. A third battery is connected in power transfer relation to the telecommunications modules and to a power control module, and in turn receives power from the one of the first and second batteries which is not being charged, such active battery being completely isolated from the AC power line. The third battery insures against transients and switching noise during switchover between the first and second batteries, and the power control module monitors the supply of power via an optoelectronic isolator and connects both the first and second batteries in parallel with the third battery in the event of a power failure.

REFERENCES:
patent: 4255697 (1981-03-01), Buhler, III
patent: 4323788 (1982-04-01), Smith
patent: 4325021 (1982-04-01), McMackin
patent: 4413220 (1983-11-01), Waineo
patent: 4546421 (1985-10-01), Bello et al.

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