Question
Download Solution PDFA triac is a _____ switch.
This question was previously asked in
IPRC (ISRO) Technician B (Electronic Mechanic): Previous Year Paper (Held on 10 Dec 2016)
Answer (Detailed Solution Below)
Option 3 : Bidirectional
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Detailed Solution
Download Solution PDFTRIAC:
- The TRIAC is a 3-terminal semiconductor device and may be considered equivalent to two SCRs connected in antiparallel.
- TRIAC are bidirectional devices.
- It is ideal for operation utilizing AC power for switching purposes (operated at power frequency)
- It can control current flow for both halves in an alternating current cycle.
The V-I characteristics are shown below.
Applications:
- Lighting control - especially domestic dimmers.
- Control of fans and small motors.
- Electronic switches for general AC switching and control
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