A fully controlled bridge converter is feeding an RLE load. The load current is I_{0}. The input voltage is V_{m} sin ωt. The KVL equation to find firing angle a is

A rectifier is fed by a transformer. The rms voltage and current at secondary of transformer are V_{s} and I_{s}. Output dc power is V_{dc} I_{dc} and output ac power is (V_{rms} ) (I_{rms}), Transformer utilisation factor TUF is