Rectifiers are the circuit which converts AC Voltage to DC voltage. The half wave rectifier is the simplest type of rectifier with a single diode. The output of the rectifier is filtered with a capacitor filter to smoothen.

A diode can be connected in forward and reverse bias with a source. In Forward bias connection, a diode conducts current like a closed switch. Where in reverse bias, a diode blocks current like an open switch.

At the time of developing the PN junction diode, the depletion region is formed. Where free electrons and hole cross the conjunction between P- and N-region and recombine.

This handbook is a textbook for power electronics Starting from the electronics devices like Diodes, Transistors, SCR and so on. Then Muhammad H. Rashid explains its applications like DC-DC, DC-AC, AC-DC, AC-AC converter.

Phasor diagram in an AC circuit analysis is to represent the phase angle i.e. leading and lagging effect through vector representation. Phasor algebra, polar form, and complex number conversions are also explained.

The author Ned Mohan tried his best to prepare students for industries by providing a broad and depth knowledge of power electronics by giving the gift of "The first course on Power Electronics and Drive".

Power Factor (PF) play an important role in average power dissipation in an ac circuit. PF leads to the concept of three different real, reactive and apparent power, which is better explained by Power triangle.

Capacitor and inductor oppose current in AC circuit because of inertia of electron motion, which is called capacitive and inductive reactance respectfully.

Alternating current (AC) is the type of electrical current which changes its direction and magnitude every moment.

In RL series circuit, during the inductor charging phase, the voltage across the inductor gradually decrease to zero and the current through the inductor goes to the maximum in five-times constant (5 taus).