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MOS-GTOs represent a new generation of turn-off thyristors offering considerable advantages in the turn-off behaviour as compared to conventional GTOs. However, MOS-GTOs generally require two control electrodes for turn-on, which might be regarded as a disadvantage. This paper shows that in MOS-GTOs with a p-channel cathode structure it is possible to turn the thyristor on and off by controlling only...
Very low-loss, very high speed and snubber-circuitless performance of the newly fabricated high power 1200V–300A class of the static induction (SI) thyristor is introduced and it is applied to the 60kHz–100kW high efficiency (90%) inverter for induction heating.
A cycloconverter with a tank circuit for induction heating which can deliver power to load keeping an input displacement factor at 1.0 is proposed in this paper. Static characteristics are analyzed using the switching functions and the mode functions and operation regions in which the input displacement factor is kept at 1.0 are found. A starting method which uses only a gate pulse sequence for thyristors...
A modified version of the series resonant DC/DC converter which provides low di/dt and increased turn-off time to its switches is analyzed. A simple dynamic simulation which uses little computer time and a steady-state solution are found. Experimental verification is provided.
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