Power Electronics - Engineering

Q1:

A fully controlled bridge converter is feeding an RLE load. For some circuit conditions firing angle is 47°. If connections of battery are reversed, the firing angle is likely to be

A 47°

B less than 47°

C more than 47°

D either more or less than 47°

ANS:C - more than 47°

Because now minimum firing angle will be decided by value of E
θ=sin^-1(E/v).