Global patent index - EP 1071312 A2

EP 1071312 A2 2001-01-24 - PWM driving method

Title (en)

PWM driving method

Title (de)

PWM-Ansteuerverfahren

Title (fr)

Procédé de commande MLI

Publication

EP 1071312 A2 (DE)

Application

EP 00250222 A

Priority

DE 19933733 A

Abstract (en)

The method involves using a current pulse whose current amplitude (IMAX) is greater than the maximum permissible amplitude (IG) for continuous operation, whereby the arithmetic mean over a period is equal to the maximum permissible current intensity for continuous operation. An Independent claim is also included for a PWM drive arrangement.

Abstract (de)

Die Erfindung betrifft ein PWM-Ansteuerverfahren sowie eine entsprechende Ansteuereinrichtung zur Beeinflussung der Helligkeit von Leuchtkörpern oder Leuchtmitteln, umfassend eine Spannungs-oder Stromquelle zur Erzeugung von Strompulsen, wobei die Stromstärke IMAX der Strompulse größer als die maximal zulässige Stromstärke IG für Dauerbetrieb ist, wobei der arithmetische Mittelwert gleich der maximal zulässigen Stromstärke IG für Dauerbetrieb ist. <IMAGE>

IPC 1-7 (main, further and additional classification)

H05B 33/08; H05B 37/02

IPC 8 full level (invention and additional information)

H05B 33/08 (2006.01)

CPC (invention and additional information)

H05B 33/0818 (2013.01); H05B 33/0848 (2013.01)

Designated contracting state (EPC)

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

EPO simple patent family

EP 1071312 A2 20010124; EP 1071312 A3 20010816; DE 19933733 A1 20010125; DE 19933733 B4 20101021

INPADOC legal status

2001-11-14 [18W] WITHDRAWN

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- Date of withdrawal: 20010917

2001-08-16 [AK] DESIGNATED CONTRACTING STATES:

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2001-08-16 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

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2001-01-24 [AK] DESIGNATED CONTRACTING STATES:

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2001-01-24 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

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