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. 17, 1984
Filed:
Nov. 30, 1981
Applicant:
Inventor:
Takeshi Yamada, Nagaokakyo, JP;
Assignee:
Omron Tateisi Electronics Co., Kyoto, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02P / ;
U.S. Cl.
CPC ...
363 19 ; 331112 ;
Abstract
A switching regulator having a blocking oscillator including a transistor, and a transformer with primary, secondary, and positive feedback windings. A rectifying and smoothing circuit is connected to the load and includes a photodiode coupled to a phototransistor connected to the blocking oscillator transistor in the feedback path for adjusting feedback to maintain output voltage at a constant level. A second positive feedback circuit connects between the phototransistor and the blocking oscillator transistor to assure stable oscillation of the blocking oscillator.