Global Patent Index - EP 0943974 B1

EP 0943974 B1 20060823 - Voltage regulator circuit

Title (en)

Voltage regulator circuit

Title (de)

Spannungsregelschaltung

Title (fr)

Circuit de régulation de tension

Publication

EP 0943974 B1 20060823 (DE)

Application

EP 98105108 A 19980320

Priority

EP 98105108 A 19980320

Abstract (en)

[origin: EP0943974A1] The transistor of the series regulator is a FET (20), which in conducting mode charges a capacitor (46), the charge voltage of which, forms the regulated output voltage, that with the control connection (21) of the FET (20) is connected a first threshold value circuit (26,28,30,32) lying at the unregulated DC voltage. At the connection (21) lies a voltage blocking the FET, as soon as the unregulated DC voltage lies above a specified threshold value. A second threshold value circuit (36,38,40,42) lying at the regulated output DC voltage is connected with the control connection (21) of the FET (20). The voltage at this control connection blocks the FET, as soon as regulated DC voltage rises above a specified desired value.

IPC 8 full level

G05F 1/575 (2006.01)

CPC (source: EP US)

G05F 1/575 (2013.01 - EP US)

Designated contracting state (EPC)

CH DE FR GB IT LI NL SE

DOCDB simple family (publication)

EP 0943974 A1 19990922; EP 0943974 B1 20060823; CA 2264437 A1 19990920; CA 2264437 C 20011204; DE 59813694 D1 20061005; HU 225080 B1 20060628; HU 9900687 D0 19990528; HU P9900687 A2 19991129; HU P9900687 A3 20021128; US 6094040 A 20000725

DOCDB simple family (application)

EP 98105108 A 19980320; CA 2264437 A 19990303; DE 59813694 T 19980320; HU P9900687 A 19990318; US 26243499 A 19990304