Process and device for equalising the voltage distribution...

Details Process and device for equalising the voltage distribution... Process and device for equalising the voltage distribution...

H - Electricity

03

K

H03K 17/08 (2006.01) H02M 1/088 (2006.01) H03K 17/082 (2006.01) H03K 17/10 (2006.01) H03K 17/732 (2006.01)

Patent

CA 2185559

The invention relates to a process and a device (14) for equalising the voltage distribution to gate-controlled, series-connected semiconductors (2). According to the invention, in the on-conditon, predetermined switch-off delays are called depending on the measured value of a load current (iL) and said delays are updated following switch-off depending on a wrong-voltage distribution found. This provides a process and a device (14) for equalising the voltage distribution to gate-controlled, series-connected semiconductors (2), the regulation being always automatically performed according to the latest operating status.

La présente invention concerne un procédé et un dispositif (14) d'égalisation de la répartition de la tension entre des semi-conducteurs blocables et montés en série (2). Selon l'invention, à l'état non bloqué, des retards de coupure prédéterminés sont appelés en fonction d'une valeur de mesure d'un courant de charge (i¿L?) et ces retards sont actualisés après la coupure effectuée, en fonction d'une répartition de tension erronée détectée. On obtient ainsi un procédé et un dispositif (14) d'égalisation de la répartition de la tension entre des semi-conducteurs blocables et montés en série (2), la régulation se faisant toujours automatiquement selon l'état de fonctionnement le plus actuel.

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