Title :
Miniaturization of isolated gate-drive circuit by means of megahertz-switching converter
Author :
Ninomiya, Tamotsu ; Tanizoe, Yukihiro ; Manabe, Takashi ; Itoh, Masayasu
Author_Institution :
Dept. of Electron., Kyushu Univ., Fukuoka, Japan
Abstract :
A miniaturized and isolated gate-drive circuit is presented for multitransistor systems such as a motor drive system and a bridge-type converter and inverter. This gate-drive circuit is composed of a 16 MHz switching DC-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 this DC-DC converter according to the PWM control signal. The gate-drive circuit can be miniaturized considerably when compared with the conventional one
Keywords :
bridge circuits; driver circuits; power convertors; pulse width modulation; semiconductor switches; switching circuits; 16 MHz; DC-DC converter; PWM control signal; bridge-type converter; inverter; isolated gate-drive circuit; megahertz-switching converter; miniaturisation; motor drive system; multitransistor systems; photo-coupler; power switch; DC-DC power converters; Frequency; Motor drives; Power supplies; Pulse transformers; Pulse width modulation; Pulse width modulation converters; Pulse width modulation inverters; Switching circuits; Switching converters;
Conference_Titel :
Power Electronics Specialists Conference, 1991. PESC '91 Record., 22nd Annual IEEE
Conference_Location :
Cambridge, MA
Print_ISBN :
0-7803-0090-4
DOI :
10.1109/PESC.1991.162766
