Electronic power control circuit

Details Electronic power control circuit Electronic power control circuit

1995-08-22

1997-02-04

Hecker, Stuart N.

Electricity: power supply or regulation systems

Output level responsive

Phase controlled switching using electronic tube or a three...

323246, 323905, G05F 110, H02J 312

Patent

active

056002335

ABSTRACT:
An improved method and apparatus for handling the large load currents which occur with overloads, short circuits, and momentary overcurrents such as in starting motors or cold incandescent lamp filaments. The method involves turning the load current off when an overcurrent is detected, and then back on again before the end of the half-cycle in which the overcurrent occurred. This allows more current to flow during the half-cycle without the need to increase the peak current capability of the power-handling components. With an incandescent lamp load, this results in more rapid lamp brightening without the need for larger, more expensive components. Several embodiments are disclosed which respond to different features of the power line voltage cycle, including a very low-cost microprocessor circuit and power supply.

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patent: 5268631 (1993-12-01), Gorman et al.
patent: 5319301 (1994-06-01), Callahan et al.
patent: 5331270 (1994-07-01), Nutz et al.

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