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:
Oct. 09, 1984
Filed:
May. 26, 1981
Applicant:
Inventor:
Reisuke Sato, Saitama, JP;
Assignee:
Pioneer Electronic Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03F / ; H03G / ;
U.S. Cl.
CPC ...
330254 ; 330110 ; 330256 ; 330257 ; 330284 ; 330288 ; 330289 ; 455188 ;
Abstract
A level shifting circuit capable of operating with a wide range of impedances of a signal source without backflow of current and without a buffer circuit. A feedback element is coupled between an inverting input and an output of an operational amplifier. An output of a current source is connected to the inverting input of the operational amplifier while the signal to be level shifted is applied to the non-inverting input thereof. The current source may be a current mirror circuit and a temperature compensating diode may be coupled in series with the feedback element.