DRIVE CIRCUIT

A driving circuit applies a voltage to a switching element (1) to switch between an ON state and an OFF state. The switching element (1) includes a control terminal, a high-potential terminal, and a low-potential terminal, and is switched between the ON state in which a current flows between the hig...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	OKUBO, Akinori, SHIMOMURA, Taku, NUMAKURA, Keiichirou
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	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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Beschreibung
Zusammenfassung:	A driving circuit applies a voltage to a switching element (1) to switch between an ON state and an OFF state. The switching element (1) includes a control terminal, a high-potential terminal, and a low-potential terminal, and is switched between the ON state in which a current flows between the high-potential terminal and the low-potential terminal and the OFF state in which the current does not flow therebetween, depending on the voltage of the control terminal in a case in which a potential of the low-potential terminal is defined as a reference potential. The driving circuit includes a negative-voltage power supply (5) and a voltage changing unit (R2, R3, C1). The negative-voltage power supply (5) applies a negative voltage as the voltage to the control terminal when the switching element (1) is switched from the ON state to the OFF state. The voltage changing unit changes the voltage immediately before the switching element (1) is switched from the OFF state to the ON state to be higher than the negative voltage from the negative-voltage power supply (5) immediately after the switching element (1) is switched from the ON state to the OFF state.