Title:
DRIVE CIRCUIT FOR CAPACITIVE LOAD
Document Type and Number:
Japanese Patent JP3238035
Kind Code:
B2
Abstract:
PURPOSE: To realize a drive circuit for a capacitive load in which a sharp output waveform is obtained regardless of simple circuit configuration.
CONSTITUTION: In the circuit configuration where a diode 4 is provided between an emitter of an upper side IGBT(insulated gate bipolar transistor) 3 and a gate of the upper element is connected to a collector of the lower element, another IGBT 9 is provided to the lower side and a collector of the IGBT 9 connects to the emitter of the upper side IGBT 3. Through the constitution above, since a reverse recovery current of the diode 4 is suppressed, a sharp output waveform is obtained regardless of the simple circuit configuration.
Inventors:
Hitoshi Oura
Koji Kawamoto
Masakazu Ozeki
Koji Kawamoto
Masakazu Ozeki
Application Number:
JP3969095A
Publication Date:
December 10, 2001
Filing Date:
February 28, 1995
Export Citation:
Assignee:
株式会社日立製作所
日立原町電子工業株式会社
日立原町電子工業株式会社
International Classes:
H03K17/04; H03K17/06; H03K17/56; (IPC1-7): H03K17/56; H03K17/06
Domestic Patent References:
| JP5915327A |
Attorney, Agent or Firm:
Yasuo Sakuta (1 outside)
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