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:
Sep. 06, 1977
Filed:
Feb. 25, 1976
Applicant:
Inventors:
William L Chapman, Ponca City, OK (US);
Larry L Newlin, Ponca City, OK (US);
Assignee:
Continental Oil Company, Ponca City, OK (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M / ;
U.S. Cl.
CPC ...
363 34 ; 322 90 ;
Abstract
An improved digital-controlled power amplifier for low frequency, high power applications. The circuit consists of an alternator with stator windings rewound in a binary sequence for generation of primary power, whereupon pulsed semi-conductive controlled rectifiers are digitally controlled to turn on selected binary combinations of the stator output voltages for summation to produce an output voltage of selected amplitude versus duration; and further, the summed voltage output is switched by a polarity switching bridge to enable generation of a bi-polar output to the circuit load.