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:
Jun. 13, 1978
Filed:
Feb. 01, 1977
Applicant:
Inventor:
Hidetoshi Tanigaki, Nishinomiya, JA;
Assignee:
Furuno Electric Co., Ltd., Nagasaki, JA;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03K / ; H03F / ;
U.S. Cl.
CPC ...
307254 ; 307218 ; 3072 / ; 307300 ; 330270 ;
Abstract
A push-pull switching circuit including two grounded emitter transistors 5, 6 controlled by a pair of AND gates 3, 4. The collector output of each transistor is fed back to an input of the AND gate controlling the other transistor, the remaining AND gate inputs being supplied by the Q and Q outputs of a flip-flop circuit 2. During the prolonged conduction of each transistor due to minority carrier storage, its lowered collector potential prevents the enabled AND gate for the other transistor from raising its output and initiating conduction, thereby avoiding overlapping or simultaneous transistor conduction.