Guest hasan081043 Posted November 28, 2013 Report Share Posted November 28, 2013 The supply is 220v 50Hz ac.I need 60V DC output voltage .For this i need to fire the thyristor at 80 degree.The main problem is to fire the thyristor at 80 degree .please sugest me the firing circuit.for half wave controlled rectifierVdc=Vm(1+cost)/2*pihere t=firing angleVm=maximum ac voltageVdc=output DC voltageSo for Vdc=60V ,Vm=1.414*220=311t=?the required firing angle would be 80 degree. Quote Link to comment Share on other sites More sharing options...
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