Ac Fan Motor Speed Control Circuit

This bt136 triac based 230 volt ac motor speed control circuit is designed for adjusting the speed of an electrical motor in your homes like drilling motor or dress stitching machine motor.

Ac fan motor speed control circuit.

This triac based 220v ac motor speed controller circuit is designed for controlling the speed of small household motors like drill machines. Ac motor speed control circuit. Dimmer ac motor speed controller circuit using triac. Mains supply input 230 vac or 110 vac output.

The speed of the motor can be controlled by changing the setting of p1. 200 watt triac based design screw terminal connector easy connection four mounting holes of 3 2 mm each pcb dimensions 50 mm x 47 mm. The setting of p1 determines the phase of the trigger pulse that fires the triac. This point on the voltage curve where the voltage changes the direction is called zero voltage crossing.

For this we must need to detect the zero point from which the signal is to be controlled chopped. Many of these regulatory power circuits have an activation point and a deactivation. For controlling the speed of ac fan the peak voltage of both the half cycles needs to be chopped or controlled.