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:
Jan. 10, 1995
Filed:
Sep. 15, 1993
Applicant:
Inventor:
Brian Murphy, Brombach, DE;
Assignee:
Siemens Aktiengesellschaft, Munich, DE;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H03K / ;
U.S. Cl.
CPC ...
326 21 ; 361 91 ; 326 68 ; 326121 ; 327534 ; 327546 ;
Abstract
A CMOS buffer circuit includes a p-channel MOS transistor having a source terminal connected to an operating voltage source and a substrate terminal connected to a pump voltage source. A first n-channel MOS transistor is connected in series with the p-channel MOS transistor and has a source terminal connected to a reference potential and a drain terminal connected to an output terminal. A second n-channel MOS transistor is connected between and in series with the p-channel MOS transistor and the first n-channel MOS transistor. The second n-channel MOS transistor has a gate terminal connected to the pump voltage source.