The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 04, 2000
Filed:
Sep. 29, 1997
Mark S James, Mission Viejo, CA (US);
U.S. Energy, Inc., San Clemente, CA (US);
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.