Zero-Crossing-Triac-Driver-Optocoupler-MOC3041


Posted on Feb 6, 2014

The MOC303XM and MOC304XM devices consist of a AlGaAs infrared emitting diode optically coupled to a monolithic silicon detector performing the function of a zero voltage crossing bilateral triac driver. MOC3041. They are designed for use with a triac in the interface of logic systems to equipment powered from 115 VAC lines such as teletypewriters


Zero-Crossing-Triac-Driver-Optocoupler-MOC3041
Click here to download the full size of the above Circuit.

, CTRs, solid-state relays, industrial controls, printers, motors, solenoids and consumer appliances, etc. These were used by me to make solid state relays. Look at the circuits here Power Electronics Circuits. The were used to control Heaters from DC control signal from a Proportional Temperature Controller. The Magnetic Contactors can be avoided for lower powers. At higher powers SCR banks become a bit expensive. The SSR has no mechanical wear and tear but heat up at high currents. So if we overrate by 5 Times then it is an excellent solution for lower power controls upto 5 Kilo Watts. The cycle time of Contactors must be 20-60 Seconds to make it last long. In a SSR a one second cycle time is possible as 10-20mS is the switching speed due to zero crossing.




Leave Comment

characters left:

Related Circuits

  • New Circuits

    .

     


    Popular Circuits

    High Voltage Switching for Energy Recovery
    PAL/NTSC Video Time/Date Generator
    Back emf motor speed control
    digital thermometer with data
    Two-phase squarewave oscillator
    Low-voltage oscillator features increased spectral purity
    Triac Testing Circuit PCB
    Voltage Level Detector Circuit
    Ncp5810d: Dual 1 W Output Amoled Driver Supply Evaluation Board
    General purpose RF receiver
    AM Receiver
    Trap MC33171
    Sequential timing control circuit diagram



    Top