The range of spread of gate-cathode characteristics for a certain thyristor can be linearized to between 15V/A and 10V/A. The manufacturer's data gives the maximum gate. power dissipation as 5W. Sketch the G www R₁ 1:n www characteristic up to Vcc = 15V and I = 1.5A, and insert the PG(max av) line. With the gate firing circuit as shown in Fig. aside, a 1:1 isolating transformer, Vp amplitude of 20V, and R₁ = R2 = 2002, determine the possible range of VGC and IG.