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. 21, 1993
Filed:
Jun. 02, 1992
Applicant:
Inventor:
Jan L Michaud, Cuyahoga Falls, OH (US);
Assignee:
Lucerne Products, Inc., Hudson, OH (US);
Primary Examiner:
Int. Cl.
CPC ...
H01L / ;
U.S. Cl.
CPC ...
318 17 ; 437-6 ; 388917 ; 388937 ;
Abstract
A universal diac is provided for implementation in controlling an SCR in a motor speed control circuit. The diac is provided with dissimilar interconnections between the emitters and base, such that the device operates as a standard diac in one mode of operation, and as a zener diode in an opposite mode of operation. The zener characteristics are achieved by the implementation of a shorted base configuration.