Study Of Triac and A.C. Phase Control .

We are a readily engaged in offering Study Of Triac And A.C. Phase Control to the respectable clients. The offered range is designed ideally to track the characteristics of a TRIAC and its application as A.C. Power control using phase control technique. Available with built-in load facility, this range also conducts radio frequency interference in phase control and methods of their suppression.




  • Study of TRIAC characteristics and its operation in all the four modes i.e. I+, I-, III+ and III-
  • Gate control of TRIAC with NPN transistor
  • Gate control of TRIAC with PNP transistor
  • Phase control with TRIAC and DIAC as pulse generator for gate trigger
  • Light dimmer with TRIAC-hysteresis effect and its minimization by gate slaving technique
  • Study the radio frequency interference (RFI) in phase control and its suppression by RFI filter


Built in parts:


  • DIAC
  • Two potentiometers for biasing and phase control
  • RF choke and capacitor for RFI filter
  • Lamp holder with 40 watt lamp for load in power control indicator
  • Adequate no. of other electronic components
  • Mains ON/OFF switch, fuse and jewel light




  • The unit is operative on 230V ±10% at 50Hz A.C. Mains
  • Adequate no. of patch cords stackable 4 mm spring loaded plug length ½ meter
  • Good Quality, reliable terminal/sockets are provided at appropriate places on panel for connections/observation of waveforms
  • Strongly supported by detailed Operating Instructions, giving details of Object, Theory, Design procedures, Report Suggestions and Book References
  • Weight : 3 Kg. (Approx.)
  • Dimension : W 340 x H 110 x D 210


Other apparatus required:


  • Digital multimeter 3¾ digit
  • 0-30V, 1 amp IC regulated power supply
  • Dual trace cathode ray oscilloscope 20mhz (unearthed)

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