Global Patent Index - EP 1026689 B8

EP 1026689 B8 20070228 - Voltage down converter with switched hysteresis

Title (en)

Voltage down converter with switched hysteresis

Title (de)

Abwärtsspannungswandler mit geschalteter Hysterese

Title (fr)

Convertisseur d'abaissement de tension avec hysterese commutable

Publication

EP 1026689 B8 20070228 (EN)

Application

EP 00300886 A 20000204

Priority

  • US 11873699 P 19990205
  • US 49272700 A 20000127

Abstract (en)

[origin: EP1026689A2] A voltage down converter with hysteresis generator combining a hysteresis signal to a reference voltage and an output voltage feedback signal applied to a comparator. The hysteresis generator is coupled to a control signal giving advance notice of when a high current load is to be activated. The hysteresis signal is switched to a first state prior to the high current load activation, and switched to a second state after the high current load activation. In the first state, the hysteresis voltage is added to a reference voltage. In the second state, the hysteresis voltage is added to the voltage output feedback signal.

IPC 8 full level

G05F 1/46 (2006.01); G11C 5/14 (2006.01)

CPC (source: EP US)

G11C 5/147 (2013.01 - EP US)

Designated contracting state (EPC)

GB

DOCDB simple family (publication)

EP 1026689 A2 20000809; EP 1026689 A3 20010411; EP 1026689 B1 20070103; EP 1026689 B8 20070228; US 6300810 B1 20011009; US RE39274 E 20060912

DOCDB simple family (application)

EP 00300886 A 20000204; US 49272700 A 20000127; US 62155503 A 20030716