Full Wave Rectifier Using Diode - theoretical and derivation discussion of it's characteristics

Definition: The full wave rectifier circuit is a rectifier circuit, which converts an ac voltage to dc voltage.
These circuits are called full wave rectifier because it generates output of full cycle for input of full cycle. No input cycle is wasted.
Full wave rectifier (circuit diagram 1)
Input and output waveform of full wave rectifier (circuit diagram 1)
Full wave rectifier (circuit diagram 2)
Input and output waveform of half wave rectifier (circuit diagram 2)
Working principal: For both circuit Vin is input voltage. Output is Vout. T is step down center tapped transformer. n1 is the turn ratio of primary coil and n2 are the turn ratio of secondary coils of transformer. A diode D1(or D2) is placed between for both Vn2 and Vout. Voltage drop at diodes are Vd1 and Vd2. R is load resistor.
Input voltage is applied in primary coil of transformer. This voltage is step down and transferred to secondary coil. Based on the polarity of input voltage and the position of diode, the diode is forward biased (diode on) or reverse biased (diode off) and generate the output.
For first full wave rectifier, when Vin positive, Vn2 positive, D1 forward biased, D2 reverse biased i.e. D1 on, D2 off. Vout is positive. when Vin negative, Vn2 negative, D1 reverse biased, D2 forward biased i.e. D1 off, D2 on. Vout = -Vn2. As Vn2 is negative, so Vout is positive.
For second full wave rectifier, when Vin positive, Vn2 positive, D1 reverse biased, D2 forward biased i.e. D1 off, D2 on. Vout is negative. when Vin negative, Vn2 negative, D1 forward biased, D2 reverse biased i.e. D1 on, D2 off. Vout = Vn2. As Vn2 is negative, so Vout is negative.
Application: The primary application of rectifiers is to derive DC power from an AC supply (AC to DC converter). Virtually all electronic devices require DC, so rectifiers are used inside the power supplies of virtually all electronic equipment.
For more details on full wave rectifier and understand its theoretical aspects and derivation of its characteristics, please visit: Full Wave Rectifier Using Diode.
For more details on rectifier circuit and understand its theoretical aspects and derivation of its characteristics and simulation using LTspice, please visit: Rectifier Circuit Design - YouTube.
To learn more about Electronics (from basic to advance) please visit: It’s All About Electronics

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