EPE Association: EPE 1987 - 03 - Lecture Session 1.03: G.T.O.

EPE 1987 - 03 - Lecture Session 1.03: G.T.O.
You are here: EPE Documents > 01 - EPE & EPE ECCE Conference Proceedings > EPE 1987 - Conference > EPE 1987 - 03 - Lecture Session 1.03: G.T.O.

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   NEW PERSPECTIVES FOR GTO USED AS CONVENTIONAL THYRISTORS WITH GATE ASSISTED TURN-OFF TECHNIQUE
By Claude Millour [View]
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Abstract: A well-known advantage of the GTO thyristors is weight and volume reduction of the equipements. But the GTO thyristors have also all the characteristics which are required to be ultra fast switching thyristors, thanks especially to the gate assisting possibility. In the paper, the performances of GTO thyristors used as conventional thyristors and new perspectives of applications are presented.

   THE SELF-GENERATED GATE-ASSISTED TURN-OFF THYRISTOR
By Peter Voss [View]
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Abstract: A new device concept is introduced, where the negative gate current needed for the operation of a gate-assisted turn-off thyristor is derived from the reverse recovery current. This is achieved by removing all n-emitter shorts of the device and by connecting a passive circuit consisting of a Schottky diode and a capacitor to the interdigitated gate.

   THE GTO AS A FAST THYRISTOR
By C. J. Hammerton; F. A. Woodworth [View]
[Download]

Abstract: In addition to the classic "gate turn-off' mode, the GTO structure means that it can be used to advantage as a fast thyristor. This means that simpler gate drives can be used and higher peak anode currents handled. Applications include motor control and resonant converters.

   A NEW STEP TOWARDS THE IDEAL SWITCH: THE GTO MOS CASCODE
By G. Clerc; JP. Riotte; G. Rojat [View]
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Abstract: This article concerns a high-performance static switch associated with a drive enabling its use in the majority of converters. lts power stage is a GTO-MOS cascode controlled by a high-voltage MOS. When the cascode is protected in dv/dt by an RCD snubber, insertion of an inductance on the GTO anode circuit and wiring in parallel of a capacitor on its gate circuit considerably improve the turn off process. The cascode structure, careful design and very fine interdigitation of the cathode and of the GTO gate enable snubberless operation. The drive ensures natural and controlled commutation, protection against overloads and short-circuits.

EPE 1987 - 03 - Lecture Session 1.03: G.T.O.
You are here: EPE Documents > 01 - EPE & EPE ECCE Conference Proceedings > EPE 1987 - Conference > EPE 1987 - 03 - Lecture Session 1.03: G.T.O.
	[return to parent folder]

	NEW PERSPECTIVES FOR GTO USED AS CONVENTIONAL THYRISTORS WITH GATE ASSISTED TURN-OFF TECHNIQUE By Claude Millour	[View] [Download]
Abstract: A well-known advantage of the GTO thyristors is weight and volume reduction of the equipements. But the GTO thyristors have also all the characteristics which are required to be ultra fast switching thyristors, thanks especially to the gate assisting possibility. In the paper, the performances of GTO thyristors used as conventional thyristors and new perspectives of applications are presented.

	THE SELF-GENERATED GATE-ASSISTED TURN-OFF THYRISTOR By Peter Voss	[View] [Download]
Abstract: A new device concept is introduced, where the negative gate current needed for the operation of a gate-assisted turn-off thyristor is derived from the reverse recovery current. This is achieved by removing all n-emitter shorts of the device and by connecting a passive circuit consisting of a Schottky diode and a capacitor to the interdigitated gate.

	THE GTO AS A FAST THYRISTOR By C. J. Hammerton; F. A. Woodworth	[View] [Download]
Abstract: In addition to the classic "gate turn-off' mode, the GTO structure means that it can be used to advantage as a fast thyristor. This means that simpler gate drives can be used and higher peak anode currents handled. Applications include motor control and resonant converters.

	A NEW STEP TOWARDS THE IDEAL SWITCH: THE GTO MOS CASCODE By G. Clerc; JP. Riotte; G. Rojat	[View] [Download]
Abstract: This article concerns a high-performance static switch associated with a drive enabling its use in the majority of converters. lts power stage is a GTO-MOS cascode controlled by a high-voltage MOS. When the cascode is protected in dv/dt by an RCD snubber, insertion of an inductance on the GTO anode circuit and wiring in parallel of a capacitor on its gate circuit considerably improve the turn off process. The cascode structure, careful design and very fine interdigitation of the cathode and of the GTO gate enable snubberless operation. The drive ensures natural and controlled commutation, protection against overloads and short-circuits.