2. a) Suppose the input to the following BJT switching cri is perd and duty cycle,...
2. a) Suppose the input to the following BJT switching cri is perd and duty cycle, D, varies between 0.2 and 0.5. Also, assume that the circuit is operating rectangeil i tngiw in steady state snl The switch needs to be designed such that the BJT is driven to saturation in the worst case scenario. First alent circuit model when the switch is closed and determine the maximum collector ( max. Then use the information provided in the following Table to choose a suitable value of R to ensure (or inductor) current BJT switch is driven to saturation ม.thewontcase. Assume s switching frequency, -1 KHz BJT Ratings Collector Emitter Saturation V Base Emitier On Volage. V DC Current Gain, h Mas Min Typ 04 0.7V IV 0.6 V 30 40 25 b) Complete the following sentences: The main advantage of a gate turn-off thyristor (GTO) over a SCR is.............................. The main advantage of an IGBT over a BJT is c) Mark True/False and briefly justify your answer A BJT has lower input impedance than an IGBT. A low-side switch connects/disconnects the supply voltage of the load altemately and periodically.