GATE DRIVE CIRCUIT

A gate drive circuit is characterized in that a voltage generated by dividing the voltage applied between main electrodes of a power switching device (9) by means of resistors (4a, 4b) is used as a power supply voltage, and a current drive means (6) for supplying current to a gate electrode in accor...

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Bibliographic Details
Main Author TAI, HIROMICHI
Format Patent
LanguageEnglish
French
Japanese
Published 24.03.2005
Edition7
Subjects
APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS
BASIC ELECTRONIC CIRCUITRY
CONTROL OR REGULATION THEREOF
CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
ELECTRICITY
GENERATION
PULSE TECHNIQUE
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Summary:A gate drive circuit is characterized in that a voltage generated by dividing the voltage applied between main electrodes of a power switching device (9) by means of resistors (4a, 4b) is used as a power supply voltage, and a current drive means (6) for supplying current to a gate electrode in accordance with the voltage applied between the main electrodes of the power switching device (9) is included. The current drive means (6) uses as the power supply voltage the voltage generated by the resistance division of the voltage applied between the main electrodes of the power switching device (9), thereby securing the power supply voltage for the current drive means (6) only with the division resistors added. Circuit de commande de grille dans lequel on utilise en tant que tension d'alimentation électrique une tension générée par division de la tension appliquée entre les électrodes principales d'un commutateur électrique (9) au moyen de résistances (4a, 4b), ce circuit comprenant également des moyens de contrôle de courant (6) servant à alimenter en courant une électrode de grille selon la tension appliquée entre les électrodes principales du commutateur électrique (9). Ces moyens de contrôle de courant (6) utilisent, en tant que tension d'alimentation électrique, la tension générée par la division de résistance de la tension appliquée entre les électrodes principales du commutateur électrique (9), ce qui permet de conserver la tension d'alimentation des moyens de contrôle de courant (6) seulement au moyen de l'apport des résistances de division.
Bibliography:Application Number: WO2004JP13223