The output waveform will he a square wave with the same frequency as the fundamental
of the control voltage (intended output frequency of the D-C-AC converter].
The speed of the induction motor is mainly dependent on the frequency of the input
a) Shorter on—time for switches make the inductor currents have less time to build up. The
maximum value of the generated magnetic flux is therefore less, and the physical size can
thus be reduced.
b) The frequency of the driving voltage controls the spee
l. a) The speed of a synchronous motor depends on the frequency of the driving voltage.
b) A third winding is added to transformers in forward converters to allow the stored energy
in the transformer to be removed.
c) The voltage is reversed and there is