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Wel-come. SWAMI SACHCHIDANAND POLYTECHNIC COLLEGE, VISNAGAR Guided by:- Miss.H.V.Momin Prepaid by :- Oza Akshay V. Modi Vishal J. Panchal Rajesh P. Mansuri.

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Presentation on theme: "Wel-come. SWAMI SACHCHIDANAND POLYTECHNIC COLLEGE, VISNAGAR Guided by:- Miss.H.V.Momin Prepaid by :- Oza Akshay V. Modi Vishal J. Panchal Rajesh P. Mansuri."— Presentation transcript:

1 Wel-come

2 SWAMI SACHCHIDANAND POLYTECHNIC COLLEGE, VISNAGAR Guided by:- Miss.H.V.Momin Prepaid by :- Oza Akshay V. Modi Vishal J. Panchal Rajesh P. Mansuri Sohil I. Patel Dhruv A.

3 Half-Wave & full wave Rectifier with filter circuit

4 Group Members Oza Akshay Oza Akshay Modi vishal Modi vishal Panchal Rajesh Panchal Rajesh Mansuri Sohil Mansuri Sohil Patel Dhruv Patel Dhruv

5 Rectifier The rectifier converts the ac input voltage to a pulsating dc voltage There are two types of rectifier. The rectifier converts the ac input voltage to a pulsating dc voltage There are two types of rectifier. 1. Half-wave rectifier 2. Full-wave rectifier.

6 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 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. 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. For this reason, this rectifier circuit is called a half-wave rectifier. The output of a half-wave rectifier circuit is pulsating DC.

7 Half wave rectifier

8 Wave form of Half wave rectifier

9

10 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. 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.

11 Full wave rectifier

12 Wave form of full wave rectifier

13 Power Supplies Consist of: 1.Transformer – steps ac voltage up or down. 2.Rectifier Diodes – change ac to bumpy dc. 3.Filter Network – includes capacitors and inductors, smooths out the bumps. 4.Voltage Regulator – keeps the voltage constant. 5.Protection – usually a crowbar circuit.

14 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

15 Shunt capacitor filter

16 Series inductor filter

17 Choke input LC filter

18 Capacitor input LC filter

19 Π filter

20 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.

21 thank you……………. thank you…………….


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