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:
Aug. 31, 2004
Filed:
Jul. 08, 2003
Applicant:
Inventor:
Rainer Krenzke, Esslingen, DE;
Assignee:
Dialog Semiconductor GmbH, Kirchheim/Teck-Nabern, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K 5/12 ;
U.S. Cl.
CPC ...
H03K 5/12 ;
Abstract
A circuit and method are given, to realize a high voltage output driver within a closed regulator loop with slew rate control, insensitive against supply voltage variations. The high-voltage front-end, essentially a slope detector, is implemented as a combination of a voltage-current with a current-voltage transformer circuit, where only very few parts are working in the high voltage domain. Using the intrinsic advantages of that solution the circuit of the invention is manufactured with standard CMOS technology and only two discrete or integrated extended drain MOS components at low cost.