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:
Feb. 19, 1991
Filed:
Dec. 15, 1989
Applicant:
Inventor:
Dennis L Welty, Mesa, AZ (US);
Assignee:
Motorola, Inc., Schaumburg, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03F / ;
U.S. Cl.
CPC ...
330288 ; 330296 ;
Abstract
A circuit for enhancing the alpha of a transistor. A current supplying circuit passes the base current of the transistor through a first and second current mirror for providing current at the emitter of the transistor such that the apparent emitter current of the transistor is made substantially equal to the collector current of the transistor.
Welty, Dennis. (1991). Alpha enhancement of a transistor using base current feedback to the (U.S. Patent No. 4994758). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4994758
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