The high power handling ,power electronics switching devices termed as Thyristors.Generally used for control and conversion of electrical power.The performance and utility depends upon power handling capacity and switching speed of the power devices and control strategy. It includes the following devices:
- SCR-silicon Controlled Rectifier
- TRIAC -Triode for Alternating Current
- DIAC -Diode for Alternating Current
- SCS-Silicon Controlled Switch
- SBS-silicon Bilateral Switch
- SUS-Silicon Unilateral Switch Or CSCR-Complementary SCR
- LAPUT-Light Actuated Programmable Unijunction Transistor
- LASCS-Light Actuated Silicon Controlled Switch
- LASCR- Light Actuated Silicon Rectifier
- PUT-Programmable Unijunction Transistor
These are used for power controlling applications like:
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- Speed control of AC and DC motors
- Temperature and illumination controllers
- HVDC (High Voltage DC) transmission lines
- AC and DC CBs (Circuit Breakers)
- Variable frequency DC-AC inverters
- Variable frequency AC-AC converters
- Variable Voltage AC –AC rectifiers
- Variable Voltage DC-DC converters
