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. 24, 2008
Filed:
Oct. 25, 2006
Applicant:
Cang Ji, Kirchheim/Teck-Nabern, DE;
Inventor:
Cang Ji, Kirchheim/Teck-Nabern, DE;
Assignee:
Dialog Semiconductor GmbH, Kirchheim/Teck-Nabern, DE;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H03H 1/00 (2006.01); G05F 5/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
Circuits and methods to achieve a regulated analog switch being capable to provide an output-voltage not exceeding a defined limit are disclosed. In a preferred embodiment a car battery provides a supply voltage up to 40 Volts, wherein a load must not have an output voltage higher than 22 Volts. The drain-source ON-resistance of the switch, realized by a high-voltage MOSFET, is kept to a minimum. The voltage regulation of the preferred embodiment is performed by a single stage operational amplifier and a two-stage amplifier having Miller compensation.