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.
General
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