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You probably have an AC supply at, say, 50Hz. Set up a second supply to drive the gate, at a phase difference of 30 degrees (assuming that is what you mean by alpha=30, and assuming you fire once per AC cycle).
If you wish to fire twice per AC cycle, then your gate drive should be 100 Hz at a phase difference of 60 degrees.
I'm assuming Proteus has the above capability because I'm not experienced with that simulator.
I am just trying to test a normal circuit here.Sine wave is of 5V and gate voltage is 5V DC.I dont understand why the thyristor is behaving like this.The trigger current is 1mA, yet below 1mA , 0mA current through anode but some current through cathode?why? And If i decrease the resistance from 5k to 4k then i get an error saying simulation not running in real time.
And This is what i get when i change gate voltage from 5V to 10V....95A flowing through anode, and only 1.8mA flowing through cathode?
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