Main components in an ordinary electronic fan regulator used in houses are ______.

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answered Feb 28, 2022 by AvantikaJha (114k points)
selected Feb 28, 2022 by Kratikaathwar

Best answer

Correct Answer - Option 4 : Triac and Diode

Electronic fan regulator:

Electronic fan regulator utilizes power electronic devices such as Diac and Triac (they are essentially semiconductor switches).
They chop the supply voltage waveform and reduces the effective voltage. It is like turning on/off the circuit at regular intervals (100/120 times in a second).
These controllers are termed AC full-wave regulators.
They are energy efficient as losses are negligible.
The speed can be reduced by changing how much time the waveform is turned on and off. A fan at lower speeds consumes lesser energy.

TRIAC is used in the domestic fan speed control circuits.
In the TRIAC-based electronic fan regulator circuit, the main components used are a resistor, capacitor, DIAC, and TRIAC.
TRIAC is directly used to control the speed by holding and releasing the current flow.
It finds applications in switching, phase control, chopper designs, brilliance control in lamps, speed control in fans, motors, etc.