This book demonstrates the usefulness of the switching function in
analyzing powers electronic circuits in the steady state. A procedure is
suggested for the effective application of this effective application of
this method for the analysis of all types of power electronic circuits.
The Kirchoff's Laws and the Superposition theorem are applied by
introducing the appropriate switching functions in order to derive
Unified Expressions of voltage and current in switched circuits valid at
all times. The exact expressions of the current in each semiconductor
device in the circuit enables the circuit designer to collect all the
relevant data to set the ratings of the device such as rms, average and
peak values of voltage and current. The order of the voltage and current
harmonics at any point in the circuit are derived with simple
arithmetic. Compact expressions are derived for Sinusoidal PWM signals
based on the switching function. The order, magnitude and phase of each
component are derived directly from the expression with simple
arithmetic. The educator has a simple way to present to his students the
mechanism of operation of complex switched circuits where all the
statements regarding their operation are actually presented in the model
of the circuit.