Power controller

Details Power controller Power controller

1980-06-26

1983-05-10

Gellner, Michael L.

Electrical transmission or interconnection systems

Plural supply circuits or sources

Substitute or emergency source

H02J 700

Patent

active

043831842

ABSTRACT:
A power controller system for continuously supplying power to an auxillary plug-in module includes a separate power source within the module and a sensing circuit for determining whether the main power supply is within a valid range. The main system includes a DC main power supply which is coupled to the plug-in module. The sensing circuit tests to determine whether the main power supply is connected to the plug-in module for a predetermined period of time before switching this main power supply to the power using portions of the module. In the event of loss of the main power supply, either by the removal of the module or by switching off the main power supply, the sensing circuit detects this loss and the power controller system switches to the separate power source within the module. In a preferred embodiment the main system also generates a clock signal for utilization by the plug-in module, the sensing circuit determining whether the main power supply has been connected for the predetermined length of time by reference to whether a predetermined number of clock pulses have been received.

REFERENCES:
patent: 4065676 (1977-12-01), Elias
patent: 4104538 (1978-08-01), Davies, Jr.
patent: 4204249 (1980-05-01), Dye et al.

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