Triac Schaltung Motor. Bc338 bd433 2n3055 drehzahlsteller f. Triarc electric supply is your lighting power distribution and lighting controls specialist.
With switch sw1 open no current flows into the gate of the triac and the lamp is therefore off. When sw1 is closed gate current is applied to the triac from the battery supply v g via resistor r and the triac is driven into full conduction acting like a closed switch and full power is drawn by the lamp from. When the timer is on the circuit will close and the optoisolator will signal the 40 amps triac to allow the ac current and the heater will be switched on.
A triac is a three terminal mt1 gate and mt2 solid state thyristor that uses the alternative symbols in figure 1 and acts like a pair of scrs wired in inverse parallel and controlled via a single gate terminal.
The circuit above shows a simple dc triggered triac power switching circuit. They are semiconductor devices similar to a diode. Dabei wird die ein bzw. This triac based 220v ac motor speed controller circuit is designed for controlling the speed of small household motors like drill machines.
