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Wel-come

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**SWAMI SACHCHIDANAND POLYTECHNIC COLLEGE, VISNAGAR**

Prepaid by :- Oza Akshay V. Modi Vishal J. Panchal Rajesh P. Mansuri Sohil I. Patel Dhruv A. Guided by:- Miss.H.V.Momin

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**Half-Wave & full wave Rectifier with filter circuit**

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**Group Members Oza Akshay 106500309046 Modi vishal 106500309047**

Panchal Rajesh Mansuri Sohil Patel Dhruv

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Rectifier The rectifier converts the ac input voltage to a pulsating dc voltage There are two types of rectifier. Half-wave rectifier Full-wave rectifier .

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Half-Wave Rectifier When a diode is connected to a source alternating voltage, it will be of alternately forward-biased, and then reverse-biased, during each cycle of the AC sine-wave. When a single diode is used in a rectifier circuit, current will flow through the circuit only during one-half of the input voltage cycle. For this reason, this rectifier circuit is called a half-wave rectifier. The output of a half-wave rectifier circuit is pulsating DC.

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Half wave rectifier

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**Wave form of Half wave rectifier**

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Full-wave Rectifier The output of a full-wave rectifier is driven by both the positive and negative cycles of the sinusoidal input, unlike the half-wave rectifier which uses only one cycle.

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Full wave rectifier

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**Wave form of full wave rectifier**

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**Power Supplies Consist of: Transformer – steps ac voltage up or down.**

Rectifier Diodes – change ac to “bumpy” dc. Filter Network – includes capacitors and inductors, smooths out the bumps. Voltage Regulator – keeps the voltage constant. Protection – usually a crowbar circuit.

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**Types of filter circuits:-**

1. Shunt capacitor filter 2. Series inductor filter 3. Choke input LC filter 4. Capacitor input LC filter and 5. Π filter

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**Shunt capacitor filter**

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**Series inductor filter**

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Choke input LC filter

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**Capacitor input LC filter**

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Π filter

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**Important Concepts Half Wave Rectifier: Simplest. Hard to filter well.**

Full Wave Rectifier: Easier to filter. Requires transformer with center-tap. Transformer secondary must be twice intended voltage.

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thank you…………….

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