Power Electronics A to Z Blog

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Thyristor Switching Characteristics

SCR Switching Characteristics or Dynamic Characteristics: The switching characteristics are important particularly at high-frequency, to define the device velocity in changing from conduction state to blocking state and vice versa. Losses occurring in the...

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Thyristor Protection

Thyristor Protection:- For  reliable operation of SCR, it should be operated within the specific ratings. SCRs are very delicate devices and so they must be protected against abnormal operating conditions. Various protection of SCR are...

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IGBT Switching Characteristics

IGBT Switching Characteristics The IGBT - Insulated Gate Bipolar Junction Transistor is a newly developed power semiconductor device which is almost replace the role of MOSFET in high voltage power electronics circuits. It contains...

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IGCT Insulated Gate Commutated Thyristor

IGCT Introduction:- IGCT is the new member in the power semiconductor family (1997). It was introduced by ABB. It is a special type of GTO thyristor. Similar to GTO, it is a fully controllable power...

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Turning Off SCR (Commutation)

Methods of Turning OFF SCR: It is recommended to know about SCR-Basics, Structure, Characteristics before proceeding further. To tum on a thyristor, a low voltage, short duration pulse is applied to the gate (typically 4V,...