Electric lamp and discharge devices: systems – Current and/or voltage regulation
Patent
1997-09-29
2000-04-04
Vu, David H.
Electric lamp and discharge devices: systems
Current and/or voltage regulation
315276, 315307, H05B 3700
Patent
active
060465492
ABSTRACT:
An energy saving controller system providing, from one power source, one of a plurality of different voltages to a load of electrical energy consuming devices, without power interruption to the load during transition time. The system includes a power switching circuit, a current sensing circuit and a control circuit. The power switching circuit produces, at its output port, one of the different voltages in response to receipt of a control signal of regulated magnitude. The current sensing circuit measures the power switching circuit output current and produces a measured current signal. The control circuit senses an increase in the measured current signal, which indicates an increase in current demand by the load, and outputs a control signal of regulated magnitude to the power switching circuit, initiating the voltage switching.
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U.S. Energy, Inc.
Vu David H.
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