Global Patent Index - EP 1397857 A2

EP 1397857 A2 20040317 - CIRCUIT CONFIGURATION COMPRISING A CONTROL LOOP

Title (en)

CIRCUIT CONFIGURATION COMPRISING A CONTROL LOOP

Title (de)

SCHALTUNGSANORDNUNG MIT EINER REGELSCHALTUNG

Title (fr)

CIRCUIT COMPORTANT UN CIRCUIT DE REGULATION

Publication

EP 1397857 A2 20040317 (DE)

Application

EP 02733145 A 20020530

Priority

  • DE 10126925 A 20010601
  • IB 0202067 W 20020530

Abstract (en)

[origin: WO02097958A2] The invention relates to a circuit configuration comprising a control loop that can be especially used for controlling a resonant converter with several outputs. The aim of the invention is to provide a circuit configuration comprising a control loop for converts with several outputs that comprises a protective circuit that can be produced with as few circuit elements and arithmetic operations as possible and that reliably protects the circuit from overcharges. To this end, the control loop is used to generate a pulse-width modulated control signal (20) depending on two measuring signals (Va, Vb) connected to the inputs of the control loop (20). Said control loop further comprises a comparative circuit (212) that compares the pulse-duty factor ( delta ) of the control signal (20) with a maximum value ( delta max) of the pulse-duty factor and a minimum value ( delta min) of the pulse-duty factor that can be predetermined. When the pulse-duty factor ( delta ) lies outside the range between the maximum value ( delta max) of the pulse-duty factor and the minimum value ( delta min) of the pulse-duty factor, the circuit configuration issues a control information corresponding to said limit error.

IPC 1-7

H02M 3/337

IPC 8 full level

H02M 3/28 (2006.01); H02M 3/335 (2006.01); H03K 5/04 (2006.01); H03K 17/08 (2006.01); H03K 17/687 (2006.01)

CPC (source: EP US)

H02M 3/33507 (2013.01 - EP US); H02M 2001/0012 (2013.01 - EP US); Y02B 70/10 (2013.01 - EP US)

Citation (search report)

See references of WO 02097958A2

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

DOCDB simple family (publication)

WO 02097958 A2 20021205; WO 02097958 A3 20031127; DE 10126925 A1 20021205; EP 1397857 A2 20040317; JP 2004533198 A 20041028; JP 4198588 B2 20081217; US 2004145923 A1 20040729; US 6898091 B2 20050524

DOCDB simple family (application)

IB 0202067 W 20020530; DE 10126925 A 20010601; EP 02733145 A 20020530; JP 2003501035 A 20020530; US 47909103 A 20031125