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:
Aug. 14, 1979
Filed:
Dec. 08, 1977
Thomas A Young, Burton, OH (US);
Jay W Gustin, Mantua, OH (US);
Tenna Power Corporation, Cleveland, OH (US);
Abstract
A multiphase to single phase electrical energy converter wherein the frequency is converted from a relatively high frequency, in order of 1,000 hertz, to a relatively low frequency, as for example, normal household frequency of 60 hertz. A three-phase alternator is driven by an internal combustion engine, the output of the alternator being fed to a full-wave bridge circuit and finally to an inverter. The output of the bridge circuit is acted on by a resolver. The resolver is utilized to control the delivery of energy from the alternator to the inverter to provide an average current or power to the inverter which increases and decreases in a unipolar sinusoidal form at a frequency which is twice the desired output frequency. The inverter is utilized to invert every other cycle of the output from the resolver. Thus, the power from the inverter will take the form of an alternating sinusoidal waveform at 60 hertz. An arc suppressor circuit is provided to protect the resolver and inverter from arcing during switching for non-resistive loads. A current detector circuit senses the inductive ring current at the load and protects the alternator from application of improper loads and a thermal breaker protects the alternator from load faults.