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A Comparative Study of Switching Losses in IGBT and CoolMos Power Switch Devices

Yahaya, Nor Zaihar and jumanazarov, ahmet (2005) A Comparative Study of Switching Losses in IGBT and CoolMos Power Switch Devices. IEEE International Conference on Intelligent Systems . pp. 1-4.

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Abstract

In high voltage and current applications, the power switch, IGBT has become more attractive due to its high voltage and current ratings than MOSFET. However, due to its slow turn-on and high turn-off losses it is unsuitable for high switching application. A newly developed device, CoolMos, using improved MOSFET feature, with lower RDS(ON) is introduced. Whilst turn-off switching loss is determined to be constant, the turn-on switching losses in these two power switches is found to be 78.5% better in CoolMos. A conventional buck converter using IGBT (IRG4BC20W 6.5 A/600 V) and CoolMos (SPP07N60C3 7.3 A/650 V) were investigated to show that the total switching loss in the circuit could be significantly improved using CoolMos as the switch. A 40 kHz, 1.5 Watts prototype converter has been constructed to verify the simulated analysis. It can be seen that using CoolMos as the switching device, the total switching loss indicates an improvement of 68%.

Item Type:Article
Subjects:T Technology > TK Electrical engineering. Electronics Nuclear engineering
Departments / MOR / COE:Departments > Electrical & Electronic Engineering
ID Code:5800
Deposited By: Dr Nor Zaihar Yahaya
Deposited On:23 Jun 2011 11:37
Last Modified:19 Jan 2017 08:27

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