|Load Current||5A, 10A, 20A|
|Input Impedance||540 ohm|
|AC Voltage||AC100 - 220V|
In this method, the thyristor is triggered in every cycle. Basically, we are delaying the SCR gating until some time after the voltage crosses the zero, by varying this delay (measured in electrical degrees) in turn we are controlling the conduction i.e. the on time, and as such the power output to the load is controlled.
There are certain applications which require continuous proportional power. Even certain heating elements require only phase angle type power controller, namely silicon carbide, super central, infrared heaters and transformer coupled heaters.