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ISOLATED TRANSISTOR DRIVE CIRCUITS BY MEANS OF SUPER-HIGH-FREQUENCY SWITCHING CONVERTERS
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| Author(s) |
Tamotsu Ninomiya; Takashi Manabe; Yukihiro Tanizoe; Masayasu Itoh; Mignon McDonnell |
| Abstract |
A new type of miniaturized and isolated gate-drive circuit is presented for multi-transistor systems such as a motor drive system or a bridge-type converter and inverter. This gate-drive circuit is composed of a 16MHz-switching dc-to-dc converter, which transmits the driving power to the gate of the main power switch, and a photo-coupler, which controls the intermittent operation of the above dc-to-dc converter according to a PWM control signal. The gate-drive circuit can be miniaturized considerably when compared to the conventional circuit. The application to a three-phase servo-motor drive system is investigated. |
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| Filename: | Unnamed file |
| Filesize: | 2.419 MB |
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| Type |
Members Only |
| Date |
Last modified 2019-08-12 by System |
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