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:
Mar. 30, 2004
Filed:
Jun. 25, 2002
Arthur Descombes, Kerzers, CH;
EM Microelectronic-Marin SA, Marin, CH;
Abstract
A high-voltage regulator circuit ( ) delivering at least a first regulated output voltage (V , V ) from a high input voltage (V ), this regulator circuit including an external regulation device ( ) including an input terminal ( ) to which said high input voltage is applied, an output terminal ( ) at which said first regulated output voltage is delivered, and a control terminal ( ) connected to a control circuit ( ) of the external regulation device. The external regulation device ( ) is controlled by a differential amplifier ( ) to the inputs of which are respectively applied a divided voltage proportional to the first regulated output voltage and a determined reference voltage (V ), the output of this differential amplifier controlling the conduction state of the external regulation device ( ) through a high-voltage MOSFET transistor ( ) connected via its drain to the control terminal ( ) of the external regulation device ( ).