A single-phase full converter bridge has _________ SCRs.

The correct answer is option 3):(four )

Concept:

A single-phase full converter bridge has four SCRs.

The single-phase full converter is given as

Case 1:

For +ve half cycle T1 and T2 conduct. V_O = V_S

Case 2:

For -ve half cycle T3 and T4 conduct. V_O = -V_S

The waveform of single phase full converter is given as

The output of the single-phase full bridge converter is

\(V_{o(avg)}=\frac{1}{\pi }\mathop \smallint \limits_\alpha ^{\pi + \alpha } {V_m}\sin \theta \space d\theta\)

\(V_{o(avg)}={V_m\over \pi}(-cos\theta)_{\alpha}^{\pi+\alpha}\)

\(V_{o(avg)}={2V_m\over \pi}cos\alpha \)