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AC Phase Control with Triacs and Diacs

11th Grade · Technology · UK A-Level

9 lessons

Goal

Analyse and design AC phase control circuits using RC phase-shift networks, diacs, and triacs for smooth, bidirectional power control.

9 lessons
0 of 9 done
  1. Triac Bidirectional Structure and Operating QuadrantsUp next
  2. Diac Breakover Characteristics and Triggering PulsesNot started yet
  3. RC Phase-Shift Networks in AC Timing CircuitsNot started yet
  4. Calculating Firing Delay Angles in Phase ControlNot started yet
  5. Circuit Diagram and Waveform Analysis of a Triac Lamp DimmerYou are here
  6. Calculating RMS Load Voltage and Power Under Phase ControlNot started yet
  7. Hysteresis and Flash-on Effects in Simple RC TriggeringNot started yet
  8. Electromagnetic Interference and RF Filtering in Triac CircuitsNot started yet
  9. Inductive Load Commutation and Snubbers in Triac CircuitsNot started yet
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Learning standards covered

gbELEC-21.2General Certificate of Education Advanced Level (UK A-Level) · Electronics · 11th Grade

the circuit diagram and graphs for an AC phase control circuit, using an RC network, a triac and a diac and calculations of the phase shift between the supply voltage and capacitor voltage]