# Rectifier: It is a circuit which employs one or more diodes to convert ac voltage into pulsating dc voltage. We will consider the following circuits:

Save this PDF as:

Size: px
Start display at page:

Download "Rectifier: It is a circuit which employs one or more diodes to convert ac voltage into pulsating dc voltage. We will consider the following circuits:"

## Transcription

1 Rectifier: It is a circuit which employs one or more diodes to convert ac voltage into pulsating dc voltage. We will consider the following circuits: (i) Half wave rectifier. (ii) Full wave rectifier. (iii) Full wave bridge circuits. (iv) Voltage multiplier circuits. Half wave rectifier Basic half wave rectifier circuit is shown in fig.1 along with its input and output waveforms. An alternating voltage is applied to a single diode connected in a series with a load resistor R L. Working: during the positive half cycle of the input ac voltage the diode D is forward biased (ON) and conducts while conducting the diode acts as a short circuit so that circuit current flows and hence, positive half cycle of the input ac voltage is dropped across R L. 10

2 During the negative half cycle, the diode is reversing biased (off), and so does not conduct. There is no current flow, hence there is no voltage drop across R L, I D =0 and V L =0. Average values We will now state the average values of the output voltage and current. These are showing in fig.2. Let the equation of the input supply voltage of fig.1 be V m = maximum value of supply voltage in fig.1 = V= rms value of supply voltage. I m = maximum value of diode or load current. V dc = average dc voltage across load. I dc = average dc current through load. I rms = rms current through load. 11

3 Then it can be proved that (i) (ii) (iii) Form Factor (iv) (v) PIV It is the maximum voltage across the diode in the reverse direction. Ripple Factor (γ) The ripple factor of a single phase half wave rectifier is The relation between V m and V dc is given by 12

4 (vi) Efficiency (η) It is given by the ratio of the output dc power to the total amount of input power supplied to the circuit If diode resistance r d is neglected, then 13

5 Full -wave Rectifier The full wave rectifier circuit using two diodes and a center tapped transformer is shown in fig.3. The centers tap. is usually taken as the ground or zero voltage reference point. 14

6 (a) Working: When input ac supply is switched on, the ends of the transformer secondary become +Ve and negative alternately. During the positive half cycle of the ac input. Hence, being forward biased diode D 1 conducts (but not D 2 which is reverse biased). As a result, positive half cycle of the voltage appears across R L. In the negative half cycle D 2 conducts (but not D 1 ). So we find that current keeps of following through R L in the same direction in both half cycles of the ac input. Also, the frequency of the rectified output voltage is twice the supply frequency. (b) Average values: (i) Where V m is the maximum voltage across each half of the secondary winding. =rms voltage across each half of the secondary winding. (ii) 15

7 (iii) (iv) (c) PIV: In this case, PIV rating of each diode is 2 V m. consider the positive half cycle of the input ac supply when D 1 acts as short and D 2 acts as open since it is reverse biased. A voltage V m develops across R L. As seen from fig. below, voltage across D 2 is equal to the sum of voltages across the lower half GN of the transformer secondary and the load resistor. Hence PIV of D 2 =2 V m. 16

8 (d) Ripple factor (γ): For full wave rectifier circuit Is much less than that of half wave rectifier. The relation between V m and V dc is the same as HW rectifier. (e) Efficiency: Substituting and simplifying, we get It is twice the value for half wave rectifier. 17

9 Full-Wave Bridge Rectifier It is the most frequently-used circuit for electronic dc power supplies. It requires four diodes but the transformer used is not centre-tapped and has a maximum voltage of Vsm. (a) Working During the positive input half-cycle, terminal M of the secondary is positive and N is negative as shown separately in Fig. below (a). Diodes D1 and D3 become forward-biased (ON) whereas D2 and D4 are reverse-biased (OFF). Hence, current flows along MEABCFN producing a drop across RL. During the negative input half-cycle, secondary terminal N becomes positive and M negative. Now, D2 and D4 are forward-biased. Circuit current flows along NFABCEM as shown in Fig. below (b). The current keeps flowing through load resistance RL in the same direction AB during both half-cycles of the ac input supply. Consequently, point A of the bridge rectifier always acts as an anode and point C as cathode. 18

10 (b) Average and RMS Values (i) (c) PIV: In a full wave bridge rectifier, the PIV rating of each of the four diodes is V m (not 2V m as the case for ordinary full wave rectifier). (d) Ripple factor (γ): It is the same of for ordinary full wave rectifier (e) Efficiency: 19

11 It is the same of for ordinary full wave rectifier (f) Advantages: 1. No centre-tap is required on the transformer. 2. Much smaller transformers are required. 3. It is suitable for high-voltage applications. 4. It has less PIV rating per diode. The obvious disadvantage is the need for twice as many diodes as for the centretapped transformer version. Diode Applications Diode Clipper and Clamper Circuits These are diode wave-shaping circuits i.e. circuits meant to control the shape of the voltage and current waveforms to suit various purposes. Each performs the waveshaping function indicated by its name. The output of the clipping circuit appears as if a portion of the input signal were clipped off. But clamper circuits simply lams (i.e. lift up or down) the input signal to a different dc level. Clippers A clipping circuit requires a minimum of two components i.e. a diode and a resistor. Often, dc battery is also used to fix the clipping level. The input waveform can be clipped at different levels by simply changing the battery voltage and by 20

12 interchanging the position of various elements. We will use an ideal diode which acts like a closed switch when forward-biased and as an open switch when reversebiased. Such circuits are used in radars and digital computers etc. when it is desired to remove signal voltages above or below a specified voltage level. Another application is in radio receivers for communication circuits where noise pulses that rise well above the signal amplitude are clipped down to the desired level. Example: For the simple parallel clipper of Fig. below, find the shape of the output voltage. What will happen when diode and resistor are inter-changed? Solution: When positive half-cycle of the signal voltage is applied to the clipper i.e. when A is positive with respect to B, the diode D is reverse-biased. Hence, it acts as an open switch. Consequently, the entire input voltage appears across it. During the negative half-cycle of the signal voltage when circuit terminal B becomes positive with respect to A, the diode is forward-biased. Hence, it acts like a closed switch (or short) across which no voltage is dropped. Hence, the wave-shape of V 0 is as shown in Fig. below (c). It is seen that the negative portion of the signal voltage has been removed. Hence, such a circuit is called a negative clipper. 21

13 When Diode and Resistor are Interchanged In this case, the circuit becomes as shown in Fig. below. Now, the output voltage V0 is that which is dropped across R. During the positive half-cycle of the signal voltage, D acts as an open switch. Hence, all applied voltage drops across D and none across R. So, there is no output signal voltage. During the negative input half cycle, terminal B is positive and so it is forwardbiases B which acts as a short. Hence, there is no voltage drop across D. Consequently, all the applied signal voltage drops across R and none across D. As a result, the negative half-cycle of the input signal is allowed to pass through the clipper circuit. Obviously, now the circuit acts as a positive clipper. 22

14 Example: What would be the output waveform displayed by the oscilloscope in Fig. below? The silicon diode has a barrier voltage of 0.7 V. 23

15 Solution: Consider the negative input half-cycle first i.e. when point B is positive with respect to point A. The diode starts conducting when applied voltage exceeds 0.7 V. Since D and RL are in parallel, voltage across them cannot exceed 0.7 V. Obviously, negative half-cycle beyond 0.7 V gets clipped. Hence, circuit behaves like a negative clipper. During the positive input half-cycle when point A is positive, diode becomes reverse-biased and hence, becomes open-circuited. The applied voltage drops across the resistors R and RL connected in series. The peak value of the output voltage is Example: With the sine wave signal input of Fig. below (a) find the shape of the output signal V 0. (b) Find the shape of the output signal V 0. if battery connections are reversed and peak value of the output voltage. 24

16 Example: The triangular voltage of Fig. below (a) is applied to the biased parallel Clipper circuit of Fig. below (b). Find the wave-shape of the output voltage together with the maximum value of the output. (a) Biased Series Clippers Consider the wave form shown below, and then the output voltage of the biased series circuits will be as shown below: 25

17 (b) Biased Parallel Clippers The waveforms of the output voltage are as shown below: Clipping has been changed by changing the battery and diode connections. 26

18 Clampers To put it simply, clamping is the process of introducing a dc level into an ac signal. Clampers are also sometimes known as dc restorers. By way of illustration, consider the signal shown in Fig. below (a). It is a sine wave with equal of ± 5 V about 0 V. A clamper circuit has a minimum requirement of three elements, diode, capacitor and resistor. Also it needs a dc battery. Following additional points regarding clamper circuits are worth keeping in mind. 27

19 1. Both R and C affect the waveform. 2. Values of R and C should produce a time constant (τ= CR) which is large enough to ensure that capacitor remains almost fully charged during the timeperiod of the signal. In other words, time constant τ» T/2 where T is the timeperiod of the input signal. For good clamping action, the RC time constant should be at least ten times the time-period of the input signal voltage. 3. It is advantageous to first consider the condition under which the diode becomes forward biased. 4. For all clamping circuits, voltage swing of the input and output wave forms is the same. Example: The input signal of Fig. below (a) is applied to the clamper circuit shown in Fig. below (b). Draw the waveform of the output voltage V 0. How will it change if R is 100 Ω? Solution: As seen, time-period of the input signal is T = 1/1000 second = 1 ms 28

20 T/2 = 0.5 ms. τ = = 10 ms τ» T/2. Hence, once charged, the capacitor will have hardly any time to discharge by the time signal polarity reverses. We consider the two half cycles of the input signal separately: (a) Positive Input Half-cycle When positive half-cycle of the input signal voltage is applied to the clamper circuit, its terminal A becomes positive with respect to terminal B. Hence, D acts like a short as shown in Fig. below(c). A steady positive voltage of 5 V remains applied to A for 0.5 ms. at the same time, R is also shorted out because it is in parallel with D. Hence, C will rapidly charge to 5 V. Being across a short, V 0 = 0 during positive half-cycle as shown below. (b) Negative Input Half-cycle In this case, terminal B becomes positive and so reverse-biases D by 10 V. Hence, D acts like an open switch as shown below. Now, R and C get connected in series 29

21 so that their τ= RC = 10 ms. as stated earlier, capacitor will take a time of 5τ = 50 ms to get fully discharged. But the input signal will allow it just 0.5 ms during which to discharge. Obviously, C would hardly get discharged in this extremely short time interval of 0.5 ms. hence, it can be assumed to be still fully charged with the original polarity during this negative half-cycle. The output voltage V 0 across the open will be = voltage from E A B F = = 15 V with E negative the waveform of the output voltage is shown in Fig. below (b). It has same frequency as that of the input signal. However, it has been clamped down in the negative region. It is seen that voltage swing of both input and output circuits is the same i.e. 15 V. When R = 100Ω Now, τ= ms = 0.1 ms. hence, the capacitor which is almost instantaneously charged to +5 V during the positive input half-cycle, will be 30

22 almost completely discharged during the negative half cycle because, now, 5 τ (full discharge time) equals the half time-period (0.5 ms) of the signal. Hence, in this case, V 0 would be momentarily equal to 15 V at the beginning of the negative half-cycle but will fall off to almost 0 V before the signal reverses its polarity (Fig. below). As seen, υ 0 consists of voltage spikes of amplitude 15 V. In the following clamping circuits, it would be assumed that the amount of the time 5τ = 5 RC» T/2 where T is the time-period of the input signal. For all circuits, we will take the same input signal shown below with a peak value of V. We will also take note of the change in the output waveform when diode connections are reversed. Input signal 31

23 32

### The full wave rectifier consists of two diodes and a resister as shown in Figure

The Full-Wave Rectifier The full wave rectifier consists of two diodes and a resister as shown in Figure The transformer has a centre-tapped secondary winding. This secondary winding has a lead attached

### ELEC 435 ELECTRONICS I. Rectifier Circuits

ELEC 435 ELECTRONICS I Rectifier Circuits Common types of Transformers The Rectifier Rectification is the conversion of an alternating current to a pulsating direct current. Rectification occurs in both

### electronics fundamentals

electronics fundamentals circuits, devices, and applications THOMAS L. FLOYD DAVID M. BUCHLA Lesson 1: Diodes and Applications Center-Tapped Full-wave Rectifier The center-tapped (CT) full-wave rectifier

### ANADOLU UNIVERSITY DEPARTMENT OF ELECTRICAL AND ELECTRONICS ENGINEERING

ANADOLU UNIVERSITY DEPARTMENT OF ELECTRICAL AND ELECTRONICS ENGINEERING EEM 102 INTRODUCTION TO ELECTRICAL ENGINEERING EXPERIMENT 9: DIODES AND DC POWER SUPPLY OBJECTIVE: To observe how a diode functions

### CHAPTER 2B: DIODE AND APPLICATIONS. D.Wilcher

CHAPTER 2B: DIODE AND APPLICATIONS D.Wilcher 1 CHAPTER 2B: OBJECTIVES Analyze the operation of 3 basic types of rectifiers Describe the operation of rectifier filters and IC regulators Analyze the operation

### 13/02/2016. Diode Applications

Diode Applications Introduction to diode circuits DC and AC diode circuits Diode applications Clippers Clampers Limiters Peak rectifiers Voltage multipliers Voltage regulators (with Zener diodes) Rectifiers

### Robert L. Boylestad Electronic Devices and Circuit Theory, 9e

Fig. 2.44 Half-wave rectifier. Fig. 2.45 Conduction region (0 T/2). Fig. 2.46 Nonconduction region (T/2 T). Fig. 2.47 Half-wave rectified signal. Fig. 2.48 Effect of V K on half-wave rectified signal.

### Analysis V D = E V R = 0 V I D = 0 A

Electronic Circuits Load-Line Line Analysis Prof. Nizamettin AYDN naydin@yildiz.edu.tr http://www.yildiz.edu.tr/~naydin The load line plots all possible combinations of diode current ( D ) and voltage

### Chapter 3. Diodes and Applications. Introduction [5], [6]

Chapter 3 Diodes and Applications Introduction [5], [6] Diode is the most basic of semiconductor device. It should be noted that the term of diode refers to the basic p-n junction diode. All other diode

### Analog & Digital Electronics Course No: PH-218

Analog & Digital Electronics Course No: PH-18 Lec 3: Rectifier and Clipper circuits Course nstructors: Dr. A. P. VAJPEY Department of Physics, ndian nstitute of Technology Guwahati, ndia 1 Rectifier Circuits:

### Lecture - 4 Diode Rectifier Circuits

Basic Electronics (Module 1 Semiconductor Diodes) Dr. Chitralekha Mahanta Department of Electronics and Communication Engineering Indian Institute of Technology, Guwahati Lecture - 4 Diode Rectifier Circuits

### Chapter 2 MENJANA MINDA KREATIF DAN INOVATIF

Chapter 2 DIODE part 2 MENJANA MINDA KREATIF DAN INOATIF objectives Diode with DC supply circuit analysis serial & parallel Diode d applications the DC power supply & Clipper Analysis & Design of rectifier

### Properties of electrical signals

DC Voltage Component (Average voltage) Properties of electrical signals v(t) = V DC + v ac (t) V DC is the voltage value displayed on a DC voltmeter Triangular waveform DC component Half-wave rectifier

### DIODE CIRCUITS LABORATORY. Fig. 8.1a Fig 8.1b

DIODE CIRCUITS LABORATORY A solid state diode consists of a junction of either dissimilar semiconductors (pn junction diode) or a metal and a semiconductor (Schottky barrier diode). Regardless of the type,

### Overview: The purpose of this experiment is to introduce diode rectifier circuits used in DC power supplies.

UNIVERSITY OF NORTH CAROLINA AT CHARLOTTE Department of Electrical and Computer Engineering Experiment No. 3 Diodes and Bridge Rectifiers Overview: The purpose of this experiment is to introduce diode

### Rectifier Circuits. A. Half-wave (HW) Rectifier. By: Al Christman Grove City College 100 Campus Drive Grove City, PA

Rectifier Circuits By: Al Christman Grove City College 100 Campus Drive Grove City, PA Rectifiers are used to convert AC to pulsating DC, and can be combined with various types of filters to form power

### Semiconductor Diode. It has already been discussed in the previous chapter that a pn junction conducts current easily. Principles of Electronics

76 6 Principles of Electronics Semiconductor Diode 6.1 Semiconductor Diode 6.3 Resistance of Crystal Diode 6.5 Crystal Diode Equivalent Circuits 6.7 Crystal Diode Rectifiers 6.9 Output Frequency of Half-Wave

### Diode Applications. by Kenneth A. Kuhn Sept. 1, 2008. This note illustrates some common applications of diodes.

by Kenneth A. Kuhn Sept. 1, 2008 This note illustrates some common applications of diodes. Power supply applications A common application for diodes is converting AC to DC. Although half-wave rectification

### Analog Electronics. Module 1: Semiconductor Diodes

Analog Electronics s PREPARED BY Academic Services Unit August 2011 Applied Technology High Schools, 2011 s Module Objectives Upon successful completion of this module, students should be able to: 1. Identify

### Lab 3 Rectifier Circuits

ECET 242 Electronic Circuits Lab 3 Rectifier Circuits Page 1 of 5 Name: Objective: Students successfully completing this lab exercise will accomplish the following objectives: 1. Learn how to construct

### Diodes (non-linear devices)

C H A P T E R 4 Diodes (non-linear devices) Diode structure Ideal Diode Figure 4.2 The two modes of operation of ideal diodes and the use of an external circuit to limit (a) the forward current and (b)

### Rectifiers and filters

Page 1 of 7 Rectifiers and filters Aim : - To construct a DC power supply and to find the percentage of ripple-factor and percentage of regulation. Apparatus :- Transformer 230/15 ( step-down), four IN

### Power Supplies. 1.0 Power Supply Basics. www.learnabout-electronics.org. Module

Module 1 www.learnabout-electronics.org Power Supplies 1.0 Power Supply Basics What you ll learn in Module 1 Section 1.0 Power Supply Basics. Basic functions of a power supply. Safety aspects of working

### Diode Applications. As we have already seen the diode can act as a switch Forward biased or reverse biased - On or Off.

Diode Applications Diode Switching As we have already seen the diode can act as a switch Forward biased or reverse biased - On or Off. Voltage Rectifier A voltage rectifier is a circuit that converts an

### Rectifiers V OAV " V ODC = 1 T. The simplest version of rectifier circuits is the half wave rectifier

Rectifiers The simplest version of rectifier circuits is the half wave rectifier The circuit is made by a single diode (the transformer is used both to decouple the load from the mains and to change the

### Single phase, uncontrolled rectification (conversion)

Single phase, uncontrolled rectification (conversion) J Charles Lee Doyle C12763425 29 October 2015 Abstract An experiment investigating full wave rectification, for the purposes of producing a steady

### EXPERIMENT 3 DIODE AS RECTIFIER

EXPERIMENT 3 DIODE AS RECTIFIER 1. OBJECTIVES 1.1 To understand the application of diode. 1.2 To demonstrate the characteristics of three different diode rectifier circuits: halfwave rectifier, center-tapped

### Microelectronics Circuit Analysis and Design. Rectifier Circuits. Donald A. Neamen. Chapter 2. Diode Circuits. In this chapter, we will:

icroelectronics Circuit Analysis and Design Donald A. Neamen Chapter 2 Diode Circuits n this chapter, we will: Determine the operation and characteristics of diode rectifier circuits, which is the first

### DC POWER SUPPLIES. Learning Objectives. Zener diodes. Low cost DC Power Supply

C H A P T E R55 earning Objectives es Unregulated Power Supply Regulated Power Supply Rectifiers Single-phase Half-wave Rectifier Six-phase Half-wave Rectifier Filters Shunt Capacitor Filter Effect of

### Solution Tutorial 1. Diode Basics, Application and Special Diodes

Solution Tutorial 1 Diode Basics, Application and Special Diodes 1. What is the maximum number of electrons that can exist in the 3 rd shell of an atom? 2. A certain atom has four valence electrons. What

### EXPERIMENT 2 HALF-WAVE & FULL- WAVE RECTIFICATION

EASTERN MEDITERRANEAN UNIVERSITY DEPARTMENT OF ELECTRICAL & ELECTRONICS ENGINEERING EEE 341 LAB ELECTRONIC I EXPERIMENT 2 HALF-WAVE & FULL- WAVE RECTIFICATION Std. No. Name &Surname: 1 2 3 Group No : Submitted

### EXPERIMENT 6 CLIPPING AND CLAMPING DIODE CIRCUITS

EXPERIMENT 6 CLIPPING AND CLAMPING DIODE CIRCUITS OBJECTIVES To understand the theory of operation of the clipping and clamping diode circuits. To design wave shapes that meet different circuits needs.

### Analog & Digital Electronics Course No: PH-218

Analog & Digital Electronics Course No: PH-218 Lec-4: Clampers, Voltage multipliers, & Zener diode Course nstructors: Dr. A. P. VAJPEY Department of Physics, ndian nstitute of Technology Guwahati, ndia

### LABORATORY 10 TIME AVERAGES, RMS VALUES AND THE BRIDGE RECTIFIER. Bridge Rectifier

LABORATORY 10 TIME AVERAGES, RMS VALUES AND THE BRIDGE RECTIFIER Full-wave Rectification: Bridge Rectifier For many electronic circuits, DC supply voltages are required but only AC voltages are available.

### Experiment No. 5 FULL-WAVE RECTIFIERS AND POWER SUPPLIES

Experiment No. 5 FULL-WAVE RECTIFIERS AND POWER SUPPLIES Objective: The objective of this experiment is to study the performance and characteristic of full-wave rectifiers and DC power supplies utilizing

### Chapter 15. Time Response of Reactive Circuits. Objectives

Chapter 15 Time Response of Reactive Circuits Objectives Explain the operation of an RC integrator Analyze an RC integrator with a single input pulse Analyze an RC integrator with repetitive input pulses

### electronics fundamentals

electronics fundamentals circuits, devices, and applications THOMAS L. FLOYD DAVID M. BUCHLA Lesson 1: Diodes and Applications Clamper Circuits (Diode Clampers) A clamper adds a dc level to an ac voltage.

### Electric Circuit Fall 2015 Pingqiang Zhou. ShanghaiTech University. School of Information Science and Technology. Professor Pingqiang Zhou

ShanghaiTech University School of Information Science and Technology Professor Pingqiang Zhou LABORATORY 3 Diode Guide Diodes Overview Diodes are mostly used in practice for emitting light (as Light Emitting

### Homework Assignment 03

Question 1 (2 points each unless noted otherwise) Homework Assignment 03 1. A 9-V dc power supply generates 10 W in a resistor. What peak-to-peak amplitude should an ac source have to generate the same

### Develop the basic principle of operation of a diode. Classify the different types of diodes and analyze their applications.

Key educational goals: Develop the basic principle of operation of a diode. Classify the different types of diodes and analyze their applications. Reading/Preparatory activities for class i)textbook: Chapter

### Chapter 16. Diodes and Applications. Objectives

Chapter 16 Diodes and Applications Objectives Understand the basic structure of semiconductors and how they conduct current Describe the characteristics and biasing of a pn junction diode Describe the

### An application is the use of diodes to create a regulated voltage.

8. Use of the Diode Forward Drop in Voltage Regulation: An application is the use of diodes to create a regulated voltage. o A voltage regulator is a circuit whose purpose is to provide a constant dc voltage

### Operating Manual Ver.1.1

Rectifier Circuit Operating Manual Ver.1.1 An ISO 9001 : 2000 company 94-101, Electronic Complex Pardesipura, Indore- 452010, India Tel : 91-731- 2570301/02, 4211100 Fax: 91-731- 2555643 e mail : info@scientech.bz

### The D.C Power Supply

The D.C Power Supply Voltage Step Down Electrical Isolation Converts Bipolar signal to Unipolar Half or Full wave Smoothes the voltage variation Still has some ripples Reduce ripples Stabilize the output

### Week 3: Diode Application Circuits

ELE 2110A Electronic Circuits Week 3: Diode Application Circuits Lecture 03-1 opics to cover oltage Regulation - Zener Diode Rectifiers DC-to-DC converters Wave shaping circuits Photodiode and LED Reading

### Faculty of Engineering and Information Technology. Lab 2 Diode Circuits

Faculty of Engineering and Information Technology Subject: 48521 Fundamentals of Electrical Engineering Assessment Number: 2 Assessment Title: Lab 2 Diode Circuits Tutorial Group: Students Name(s) and

### Semiconductors, Diodes and Their Applications

Chapter 16 Semiconductors, Diodes and Their Applications A diode is a one-way valve for Current Examples of One-Way Valves Air Check Valve Leg Vein Valves Heart Valves Typical diode packages and terminal

### Lecture 8 Diode Applications in Microelectronic Circuits

ECE 3040 - Microelectronic Circuits Lecture 8 iode Applications in Microelectronic Circuits Instructor: r. Shyh-Chiang Shen Study: Jaeger 3.9, 3.10, 3.13.1, 3.13.2, 3.13.3, 3.14, 3.15, 3.16, Lecture Outline

### BME 3512 Biomedical Electronics Laboratory Three - Diode (1N4001)

BME 3512 Biomedical Electronics Laboratory Three Diode () Learning Objectives: Understand the concept of PN junction diodes, their application as rectifiers, the nature and application of halfwave and

### EE320L Electronics I. Laboratory. Laboratory Exercise #5. Clipping and Clamping Circuits. Angsuman Roy

EE320L Electronics I Laboratory Laboratory Exercise #5 Clipping and Clamping Circuits By Angsuman Roy Department of Electrical and Computer Engineering University of Nevada, Las Vegas Objective: The purpose

### AC Direct Off-Line Power Supplies

AC Direct Off-Line Power Supplies r Introduction Many DC power supplies found in electronic systems, including those in this Tech School, rectify the 120 volts available at an electric outlet. The initial

### Physics. Teacher s notes 56 Diodes: A.C. diode rectification. Electricity and Heat

Sensors: Loggers: An EASYSENSE capable of fast logging Physics Logging : 500 ms Teacher s notes 56 Diodes: A.C. diode rectification Read In investigation 55, students will have found out that diodes only

### 2 Rectifier Circuits Half-Wave Rectifier Circuits Full-Wave Rectifier Circuits Linear Small-Signal Equivalent Circuits 7

Lecture Notes: 2304154 Physics and Electronics Lecture 5 (2 nd Half), Year: 2007 Physics Department, Faculty of Science, Chulalongkorn University 25/10/2007 Contents 1 Ideal-Diode Model 1 2 Rectifier Circuits

### Rectifier circuits & DC power supplies

Rectifier circuits & DC power supplies Goal: Generate the DC voltages needed for most electronics starting with the AC power that comes through the power line? 120 V RMS f = 60 Hz T = 1667 ms) = )sin How

### ECE 2201 PRELAB 2 DIODE APPLICATIONS

ECE 2201 PRELAB 2 DIODE APPLICATIONS P1. Review this experiment IN ADVANCE and prepare Circuit Diagrams, Tables, and Graphs in your notebook, prior to coming to lab. P2. Hand Analysis: (1) For the zener

### Diode Application. WED DK2 9-10am THURS DK6 2-4pm

Diode Application WED DK2 9-10am THURS DK6 2-4pm Simple Diode circuit Series diode configuration Circuit From Kirchoff s Voltage Law From previous lecture E = V I D D + IDR / = I V D nv T S e ( 1) Characteristics

### Yrd. Doç. Dr. Aytaç Gören

H2 - AC to DC Yrd. Doç. Dr. Aytaç Gören ELK 2018 - Contents W01 Basic Concepts in Electronics W02 AC to DC Conversion W03 Analysis of DC Circuits W04 Transistors and Applications (H-Bridge) W05 Op Amps

### Lab Report. Signature. Name. Experiment No Experiment Name. Group Number Group Members. 2. Faisal Ahmed Shamima Akter

Lab Report Course Name Course Code Experiment No Experiment Name : Electronic Circuit-I : EEE102 :02 : Study of Diode Rectifier Circuits Group Number Group Members : 02 : Name ID 1. Md. Solayman Khan 2013-1-80-022

### Circuit 1: Half-Wave Rectifier

Circuit : Half-Wave Rectifier /2 Wave Rectifier Behavior R (ideal) (.7V drop).5.5 2 2.5 3 The /2-wave rectifier circuit passes current only when >.7V. In this case, the diode s forward voltage drop is

### ANALOG ELECTRONICS EE-202-F IMPORTANT QUESTIONS

ANALOG ELECTRONICS EE-202-F IMPORTANT QUESTIONS 1].Explain the working of PN junction diode. 2].How the PN junction diode acts as a rectifier. 3].Explain the switching characteristics of diode 4].Derive

### Experiment 2 Diode Applications: Rectifiers

ECE 3550 - Practicum Fall 2007 Experiment 2 Diode Applications: Rectifiers Objectives 1. To investigate the characteristics of half-wave and full-wave rectifier circuits. 2. To recognize the usefulness

### University of Alberta Department of Electrical and Computer Engineering. EE 250 Laboratory Experiment #5 Diodes

University of Alberta Department of Electrical and Computer Engineering EE 250 Laboratory Experiment #5 Diodes Objective: To introduce basic diode concepts. Introduction: The diode is the most fundamental

### Precision Diode Rectifiers

by Kenneth A. Kuhn March 21, 2013 Precision half-wave rectifiers An operational amplifier can be used to linearize a non-linear function such as the transfer function of a semiconductor diode. The classic

### Unit/Standard Number. High School Graduation Years 2010, 2011 and 2012

1 Secondary Task List 100 SAFETY 101 Demonstrate an understanding of State and School safety regulations. 102 Practice safety techniques for electronics work. 103 Demonstrate an understanding of proper

### Charge and Discharge of a Capacitor

Charge and Discharge of a Capacitor INTRODUCTION Capacitors 1 are devices that can store electric charge and energy. Capacitors have several uses, such as filters in DC power supplies and as energy storage

### ENGR-4300 Electronic Instrumentation Quiz 4 Spring 2011 Name Section

ENGR-4300 Electronic Instrumentation Quiz 4 Spring 2011 Name Section Question I (20 points) Question II (20 points) Question III (20 points) Question IV (20 points) Question V (20 points) Total (100 points)

### LABORATORY WORK BOOK For The Course EL-182 Basic Electronics

LABORATORY WORK BOOK For The Course EL-182 Basic Electronics Name : Roll No. : Batch Year Dept. : : : Department of Electronic Engineering N.E.D. University of Engineering & Technology, Karachi 75270,

### Summary 1. Contents 2. Introduction - background 3 / 4. Objective 5. Theory half wave rectifiers 6. Theory full wave rectifiers 7

Summary The purpose of this assignment was to investigate, analyse and explain the operation of half wave and full wave, non-controlled, bridge rectifier circuits under a number of differing load conditions.

### Silicon Controlled Rectifiers

554 20 Principles of Electronics Silicon Controlled Rectifiers 20.1 Silicon Controlled Rectifier (SCR) 20.2 Working of SCR 20.3 Equivalent Circuit of SCR 20.4 Important Terms 20.5 V-I Characteristics of

### Semiconductor Fundamentals

Student Workbook 91564-00 Edition 4 Ê>{XHèRÆ3UË 3091564000503 FOURTH EDITION Second Printing, March 2005 Copyright March, 2003 Lab-Volt Systems, Inc. All rights reserved. No part of this publication may

### Diodes & Power Supplies

Diodes & Power Supplies Diode Basics A diode is a one way valve for electricity. It lets current flow in one direction but not the other. Diodes are used for Converting AC DC Detecting Radio Signals Doing

### = V peak 2 = 0.707V peak

BASIC ELECTRONICS - RECTIFICATION AND FILTERING PURPOSE Suppose that you wanted to build a simple DC electronic power supply, which operated off of an AC input (e.g., something you might plug into a standard

### HALF WAVE AND FULL WAVE RECTIFIER CIRCUITS

FAKULTI KEJURUTERAAN MEKANIKAL UNIVERSITI TEKNOLOGI MALAYSIA KAMPUS SKUDAI JOHOR SKMM 2921 ELECTRIC LABORATORY EXPERIMENT-2 HALF WAVE AND FULL WAVE RECTIFIER CIRCUITS Prepared by: 1. Dr. Bambang Supriyo

### LRC Circuits. Purpose. Principles PHYS 2211L LAB 7

Purpose This experiment is an introduction to alternating current (AC) circuits. Using the oscilloscope, we will examine the voltage response of inductors, resistors and capacitors in series circuits driven

### Half-Wave Rectifiers

Half-Wave Rectifiers Important Points of This Lecture Calculation of output voltage using appropriate piecewise models for diode for simple (unfiltered) half-wave rectifier Differences between calculations

### EET221 Worksheet #3: Diode Circuits and Specialty Diodes

EET221 Worksheet #3: Diode Circuits and Specialty Diodes Help for this worksheet may be found in Chapters 4 and 5 of the textbook. This is not the only place to find help. Don t be afraid to explore. Much

### The Electronic Power Supply. 1. Problem Statement ( 4 situations) 2. Sample Solution 3. Notes for the Instructor

I N T E R D I S C I P L I N A R Y L I V E L Y A P P L I C A T I O N S P R O J E C T M A T E R I A L S 1. Problem Statement ( 4 situations) 2. Sample Solution 3. Notes for the Instructor Computing Requirements:

### CIRCUITS LABORATORY. Experiment 8. DC Power Supplies

CIRCUITS LABORATORY Experiment 8 DC Power Supplies 8.1 INTRODUCTION This exercise constitutes a study of circuits that approximate an ideal constantvoltage source. Recall that the ideal constant-voltage

### EXPERIMENT NO: 1. APPARATUS REQUIRED : Diode Characteristics Kit, Power Supply, Ammeter (0-20mA), Voltmeter (0-20V), Connecting Leads.

AIM : Study of V-I Characteristics of a Diode. EXPERIMENT NO: 1 APPARATUS REQUIRED : Diode Characteristics Kit, Power Supply, Ammeter (0-20mA), Voltmeter (0-20V), Connecting Leads. BRIEF THEORY : A P-N

### Lecture 9: Limiting and Clamping Diode Circuits. Voltage Doubler. Special Diode Types.

Whites, EE 320 Lecture 9 Page 1 of 8 Lecture 9: Limiting and Clamping Diode Circuits. Voltage Doubler. Special Diode Types. We ll finish up our discussion of diodes in this lecture by consider a few more

### CHAPTER 3 ANALYSIS OF SWITHCHED MODE PWM INVERTER

31 CHAPTER 3 ANALYSIS OF SWITHCHED MODE PWM INVERTER 3.1 INTRODUCTION Fixed DC power can be converted into AC power at desired output voltage and frequency by using a power electronics circuit, called

### R1 R2 R3. Figure1. Resistances in series V1 I. Figure 2. Equivalent circuit of figure 1 if RE= R1+R2+R3 VRE =V

Supplementary Notes for Unit 2 - Part A (Unit 3 and 4 exams also includes the topics detailed in this note) Series circuits A series circuit is a circuit in which resistors are arranged in a chain, so

### Fundamentals of Microelectronics

Fundamentals of Microelectronics CH1 Why Microelectronics? CH2 Basic Physics of Semiconductors CH3 Diode Circuits CH4 Physics of Bipolar Transistors CH5 Bipolar Amplifiers CH6 Physics of MOS Transistors

### Project: Half Wave Rectifier

Project: Half Wave Rectifier Notes for Semiconductor Diode Rectification Preferably (in general) electronic circuitry is energized from a voltage source, i.e., a source for which ideally no current flows

### EE 320L Electronics I Laboratory. Laboratory Exercise #4 Diode and Power Supply Circuit

EE 320L Electronics I Laboratory Laboratory Exercise #4 Diode and Power Supply Circuit Department of Electrical and Computer Engineering University of Nevada, at Las Vegas Objective: The purpose of this

### 3. Diodes and Diode Circuits. 3. Diodes and Diode Circuits TLT-8016 Basic Analog Circuits 2005/2006 1

3. Diodes and Diode Circuits 3. Diodes and Diode Circuits TLT-8016 Basic Analog Circuits 2005/2006 1 3.1 Diode Characteristics Small-Signal Diodes Diode: a semiconductor device, which conduct the current

### Circuits with inductors and alternating currents. Chapter 20 #45, 46, 47, 49

Circuits with inductors and alternating currents Chapter 20 #45, 46, 47, 49 RL circuits Ch. 20 (last section) Symbol for inductor looks like a spring. An inductor is a circuit element that has a large

### VISHAY. Vishay Semiconductors

ISHAY Physical Explanation General Terminology Semiconductor diodes are used as rectifiers, switchers, aricaps and voltage stabilizers (see chapter oltage Regulator and Z-diodes ). Semiconductor diodes

### EXERCISES in ELECTRONICS and SEMICONDUCTOR ENGINEERING

Department of Electrical Drives and Power Electronics EXERCISES in ELECTRONICS and SEMICONDUCTOR ENGINEERING Valery Vodovozov and Zoja Raud http://learnelectronics.narod.ru Tallinn 2012 2 Contents Introduction...

### ELEC 2020 EXPERIMENT 6 Zener Diodes and LED's

ELEC 2020 EXPERIMENT 6 Zener Diodes and LED's Objectives: The experiments in this laboratory exercise will provide an introduction to diodes. You will use the Bit Bucket breadboarding system to build and

### CHAPTER 10. Exercises. E10.1 Solving Equation 10.1 for the saturation current and substituting values, we have

CHAPER 10 Exercises E10.1 Solving Equation 10.1 for the saturation current and substituting values, we have i Is exp( v / nv ) 1 4 10 exp(0.600 / 0.026) 1 15 9.502 10 A hen for v 0.650 V, we have 15 i

### Supply circuits Voltage rectifier and regulator circuits

Supply circuits Voltage rectifier and regulator circuits Prepared by: Józef Maciak Agnieszka Zaręba Jakub Walczak I. Design of half wave and full wave rectifiers Due to its I-V characteristic, the simplest

### DEALING WITH AC MAINS

ARTICLE DEALING WITH AC MAINS D.MOHAN KUMAR One of the major problem that is to be solved in an electronic circuit design is the production of low voltage DC power supply from AC mains to power the circuit.

### See Horenstein 4.3 and 4.4

EE 462: Laboratory # 4 DC Power Supply Circuits Using Diodes by Drs. A.V. Radun and K.D. Donohue (2/14/07) Department of Electrical and Computer Engineering University of Kentucky Lexington, KY 40506 Updated

### Electronics Zener Diodes and Photodiodes

Electronics Zener Diodes and Wilfrid Laurier University November 10, 2016 Electronics Zener Diodes and Basic Diode Operation Application: Clamping Basic Diode Operation forward bias Electronics Zener Diodes

### Introduction to Power Supplies

Introduction to Power Supplies INTRODUCTION Virtually every piece of electronic equipment e g computers and their peripherals calculators TV and hi-fi equipment and instruments is powered from a DC power

### RICHLAND COLLEGE School of Engineering Business & Technology Rev. 0 W. Slonecker Rev. 1 (8/26/2012) J. Bradbury

RICHLAND COLLEGE School of Engineering Business & Technology Rev. 0 W. Slonecker Rev. 1 (8/26/2012) J. Bradbury INTC 1307 Instrumentation Test Equipment Teaching Unit 3 Alternating Current Meters Unit

### Chapter 11. Capacitors Charging, Discharging, Simple Waveshaping Circuits

Chapter 11 Capacitors Charging, Discharging, Simple Waveshaping Circuits Source: Circuit Analysis: Theory and Practice Delmar Cengage Learning Introduction When switch is closed at, capacitor charging