Half-Wave AC Controller: Single phase half wave AC voltage controller circuit using one SCR and one diode connected in parallel across each other in opposite direction used in most of the AC control applications. The AC power flow to the load can be controlled in the half cycles by varying firing angle. The RMS value of load voltage can be varied by varying firing angle. The half wave AC voltage controller is also referred to a uni- directional controller.

Full-Wave AC Voltage Controller: Single phase full wave AC voltage controller circuit using two SCRs or a single Triac is generally used in most of the AC control applications. The AC power flow to the load can be controlled in both half cycles by varying firing angle. The RMS value of load voltage can be varied by varying firing angle. The full wave AC voltage controller is also referred to a bi-directional controller.

Half-Wave AC Controller with R,RL-Load

Full-Wave AC Controller with R,RL-Load

Applications

1.Lighting/Illumunation control of AC power circuits.

2. Induction Heating .

3. Industrial Heating and Domestic Heating.

4. Transformer tap changing (on load transformer tap changing).

5. Speed control of induction motors(single phase and polyphase AC induction motor control).

6. AC Magnet controls

AC Voltage Controller

Introduction to AC Voltage Controller

Classification of AC Voltage Controller

Half-Wave AC Controller with R,RL-Load

Full-Wave AC Controller with R,RL-Load

Applications

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