Carry out a qualitative study of the rectifier circuit.

Here's a step-by-step solution for the problem:

Part a) Carry out a qualitative study of the rectifier circuit.
The circuit is a single-phase full-wave controlled rectifier with a center-tapped transformer, supplying a DC motor load. It uses two thyristors (T1 and T2) and a free-wheeling diode (D).

• During the positive half-cycle of the AC input, when the anode of T1 is positive with respect to the center tap, T1 is triggered at a firing angle $\alpha$. It conducts, supplying current to the motor.
• During the negative half-cycle, when