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.

Date of Patent:
Jul. 14, 1981

Filed:

Jul. 02, 1979
Applicant:
Inventor:

Kohji Ishida, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03D / ;
U.S. Cl.
CPC ...
329103 ; 329101 ; 307240 ;
Abstract

A chopper type switching circuit having first and second transmission paths adapted to transmit a predetermined input signal to respective output terminals. First and second switching elements are connected respectively between the mid points of the first transmission path and a reference voltage line. A group of resistors are series connected between the output terminals. Third and fourth switching elements are connected respectively between the series connection points of the group of resistors and the reference voltage line. The first and fourth switching elements and the second and third switching elements are controlled to be alternately rendered conductive and non-conductive.


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