EPE Association: EPE 1985 - 05 - Lecture Session 1.05: POWER TRANSISTOR CONVERTERS

EPE 1985 - 05 - Lecture Session 1.05: POWER TRANSISTOR CONVERTERS
You are here: EPE Documents > 01 - EPE & EPE ECCE Conference Proceedings > EPE 1985 - Conference > EPE 1985 - 05 - Lecture Session 1.05: POWER TRANSISTOR CONVERTERS

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   PWM INVERTER USING HIGH VOLTAGE AND FREQUENCY BI-MOS SWITCHES
By C. M. Penalver; J. Bernardez; J. Farina [View]
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Abstract: A cascode connection of high voltage bipolar transistor and low voltage MOSFET, called BI-MOS switch, is described. The BI-MOS switch allows to obtain the characteristics requirements of the PWM inverters, like high overcurrent capability, low switching losses, high speed switching and high current gain. An ultrasonic carrier frequency PWM inverter has been developed employing BI-MOS switches in order to obtain a minimum harmonic components on the output voltage.

   INDUCTION COOKING APPLIANCE 2 X 5 KILOWATTS
By Gerard Rilly; Gerard Morizot [View]
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Abstract: The recent evolution of advanced types of hiqh power transistors gives new impetus to the field of induction cookinq. This paper presents a concept of a laboratory prototype and includes measurement results on the inductor with a variety of cookinq vessels. The inverter load is an oscillatinq network with a relatively hiqh Q factor. The appliance is connected to a three phase 380 Volt supply. Control over the larqe ranqe of delivered power (100 % to 10 %) is achieved by varyinq the switchinq frequency. The various necessary protection circuits are detailed at the end of this report.

   AN IMPROVED DIRECT FREQUENCY CHANGER USING POWER TRANSISTORS
By Yvon Cheron; Henri Foch; Arnaldo Perin [View]
[Download]

Abstract: A privileged application of the direct frequency changer is the reconstitution of the network aboard an aircraft (115 V / 400 Hz) by means of a variable speed driven alternator (57 V / 3333 Hz ; 23 V / 1333 Hz). After having explained the principles of the direct frequency changer operation, the authors describe more precisely the used switch (power transistor) and the control which is directly inspired from the techniques employed in the PWM inverters. A reduced-power prototype has allowed to perfect the control system and to verify the feasibility of such a converter.

   A NEW STATIC CIRCUIT-BREAKER USING POWER MOS TRANSISTOR
By Ph. Auriol; G. Rojat; G. Guuinic [View]
[Download]

Abstract: A new AC and DC static circuit-breaker using a Power MOS Transistor bas been developped by ECL and EDF, called "Disjimos". The interest of this device are its full autonomy, adjustability and reliability. Tested by short-circuits on the load, the opening time is less than 1 us. The actual characteristics are in order to 400 V - 20 A, and the cost is really competitive for this small device, which assumes more functions than an electromechanical circuit-breaker does.

EPE 1985 - 05 - Lecture Session 1.05: POWER TRANSISTOR CONVERTERS
You are here: EPE Documents > 01 - EPE & EPE ECCE Conference Proceedings > EPE 1985 - Conference > EPE 1985 - 05 - Lecture Session 1.05: POWER TRANSISTOR CONVERTERS
	[return to parent folder]

	PWM INVERTER USING HIGH VOLTAGE AND FREQUENCY BI-MOS SWITCHES By C. M. Penalver; J. Bernardez; J. Farina	[View] [Download]
Abstract: A cascode connection of high voltage bipolar transistor and low voltage MOSFET, called BI-MOS switch, is described. The BI-MOS switch allows to obtain the characteristics requirements of the PWM inverters, like high overcurrent capability, low switching losses, high speed switching and high current gain. An ultrasonic carrier frequency PWM inverter has been developed employing BI-MOS switches in order to obtain a minimum harmonic components on the output voltage.

	INDUCTION COOKING APPLIANCE 2 X 5 KILOWATTS By Gerard Rilly; Gerard Morizot	[View] [Download]
Abstract: The recent evolution of advanced types of hiqh power transistors gives new impetus to the field of induction cookinq. This paper presents a concept of a laboratory prototype and includes measurement results on the inductor with a variety of cookinq vessels. The inverter load is an oscillatinq network with a relatively hiqh Q factor. The appliance is connected to a three phase 380 Volt supply. Control over the larqe ranqe of delivered power (100 % to 10 %) is achieved by varyinq the switchinq frequency. The various necessary protection circuits are detailed at the end of this report.

	AN IMPROVED DIRECT FREQUENCY CHANGER USING POWER TRANSISTORS By Yvon Cheron; Henri Foch; Arnaldo Perin	[View] [Download]
Abstract: A privileged application of the direct frequency changer is the reconstitution of the network aboard an aircraft (115 V / 400 Hz) by means of a variable speed driven alternator (57 V / 3333 Hz ; 23 V / 1333 Hz). After having explained the principles of the direct frequency changer operation, the authors describe more precisely the used switch (power transistor) and the control which is directly inspired from the techniques employed in the PWM inverters. A reduced-power prototype has allowed to perfect the control system and to verify the feasibility of such a converter.

	A NEW STATIC CIRCUIT-BREAKER USING POWER MOS TRANSISTOR By Ph. Auriol; G. Rojat; G. Guuinic	[View] [Download]
Abstract: A new AC and DC static circuit-breaker using a Power MOS Transistor bas been developped by ECL and EDF, called "Disjimos". The interest of this device are its full autonomy, adjustability and reliability. Tested by short-circuits on the load, the opening time is less than 1 us. The actual characteristics are in order to 400 V - 20 A, and the cost is really competitive for this small device, which assumes more functions than an electromechanical circuit-breaker does.