phase control circuit


Posted on Feb 5, 2014

This is a simple design schematic circuit for phase control circuit. The circuit can be used to control the power delivered to an AC load. The phase control circuit can control the AC waveform, cutting the cycle to give full cycle, half cycle, zero cycle, or somewhere in between. You can say this circuit is similar to a dimmer circuit, but the swi


phase control circuit
Click here to download the full size of the above Circuit.

tching is synchronized with the zero crossing of the waveform. This circuit is works using based on IC U208B. This is the figure of the circuit. The benefit of switching the power in zero crossing condition is that the triacs doesn`t suffer power dissipation, thus increasing the overall efficiency. This phase control circuit is suitable for brushed AC motor, heater filament, or incandescent lamps. The IC U208B is designed as a phase control circuit in bipolar technology with internal supply-voltage monitoring. As the voltage is built up, uncontrolled output pulses are avoided by internal monitoring. Furthermore, it has internal-current and voltage synchronization. It is recommended as a low cost open-loop control. [Schematic diagram source: TEMIC TELEFUNKEN Microelectronic Application Notes]




Leave Comment

characters left:

Related Circuits

  • New Circuits

    .

     


    Popular Circuits

    Phone in Hold with Music
    Basement LEDs
    Traffic Light Project
    simple fire alarm circuit
    LM56 diagram of Circuit of the Thermostat project
    Infrared alarm barrier circuit
    Fixing Laptops Motherboard
    Recording signal amplifying transistor circuit
    Low phase noise voltage controlled oscillator circuit
    Avoid contact thermometer circuit
    Intelligent home lighting control switch transmitter and receiver circuit
    LED display driver circuit a



    Top