Half-Wave Rectifiers

Save this PDF as:
 WORD  PNG  TXT  JPG

Size: px
Start display at page:

Download "Half-Wave Rectifiers"

Transcription

1 Half-Wave Rectifiers

2 Important Points of This Lecture Calculation of output voltage using appropriate piecewise models for diode for simple (unfiltered) half-wave rectifier Differences between calculations using piecewise models and ideal diode equation and PSpice simulation results Diode selection criteria Filtered half-wave rectifier Ripple voltage

3 AC to DC Conversion AC to DC conversion (ADC) Used to change Hz to direct current Charging batteries in laptops, ipods, cell phones, etc. Used to supply logic levels in desktop computers The need for ADC A number of electronic devices operate under forward bias or zero bias and can only withstand very small reverse bias conductions without sustaining permanent damage. Example: LEDs and semiconductor lasers Circuits may be designed such that only positive d.c. voltages are used. Example: Digital logic circuits

4 Design Criteria Conversion efficiency Average DC power delivered to load compared to the available AC power Maximum voltage and current rating of the load Ripple voltage ( r ) Maximum range of fluctuations of the DC voltage

5 Three types of rectifiers Half wave rectifier Full wave rectifying bridge Full wave rectifier

6 Components All rectifiers use one or more diodes A transformer may be used in the half-wave rectifier and full-wave rectifying bridge; must be used in a full-wave rectifier circuit

7 Half-Wave Rectifier

8 Approach to Solution Assume that the frequency of the AC power supply is low in comparison to the frequency response of the diode circuit I.e., the parasitic capacitance and inductance of the diode and the resistor do not affect the magnitude or phase of the output voltage This allows us to use the DC models for the diode to replace the AC power supply with a variable DC power supply To calculate the output voltage for specific set of input voltages and interpolate the value of output voltage in between.

9

10 What do you need to know? AC power supply Minimum and maximum voltages Diode Turn-on voltage, g Breakdown voltage, BR or the Zener voltage at a particular reverse bias current and Zener resistance, Z and R Z

11 Solution Three to four calculations 1. When the diode is at its maximum forward bias condition 2. When the diode voltage is equal to its turn-on voltage, but the diode current is zero 3. When the diode is at its maximum reverse bias condition 4. When the diode is just entering breakdown NOTE: This is not a desired condition for the half-wave rectifier, but may accidently occur if an incorrect diode is selected for the AC power supply connected to the circuit.

12 Example

13 Decisions on Diode Models Since the maximum voltage is +10, there is probably is enough voltage available to turn the diode on. So, the ON model for the diode will likely be used. Since the minimum voltage is -10 which is much less than - Z, we do not need to use the BREAKDOWN model. As the voltage of the AC power supply can be negative, it is likely that the OFF model for the diode will be used.

14 Calculation 1: The magnitude of the AC voltage is at its maximum

15

16 I I D o 46.5mA 200 I D 9.3 D 0

17 Calculation 2: The magnitude of the AC voltage just turns on the diode

18 I D dc o dc I 0mA I D 0 D 0

19 Calculation 3: The magnitude of the AC voltage is at its minimum

20 10 I D D o D 0mA I 200 I D 0 D 0

21 Output oltage as a Function of Time Since the input voltage was actually an AC power supply, the output voltage must vary with time. The maximum output voltage is 9.3. The output voltage is 0 when the input voltage is 0.7. The minimum output voltage is 0.

22 o vs. Time

23 oltage Transfer Characteristic g

24 If one used the Ideal Diode equation to determine o There will be a nonlinear dependence between the power supply voltage and the output voltage because of the nonlinear dependence of ID with D when the diode is forward biased. There will be a voltage drop when the diode is reverse biased because of the reverse saturation current. I D q D I e nkt 1 o

25 PSpice Simple diode model uses the Ideal Diode equation. The models based on real diode parts are more complex, incorporating parasitic resistances, capacitances, and temperature dependences Hence, your hand calculations are not going to match the answers obtained when simulating the circuit using Pspice. However, they should be roughly the same.

26

27 oltage Transfer Characteristic

28 Frequency Response Though the output voltage is plotted incorrectly in Pspice, there is a maximum frequency of operation at which the diode no longer operates via any of the models we have discussed thus far.

29 Output voltage when input power supply is operating at 1GHz

30 Criteria for Diode Selection For maximum power to the load while the diode is conducting, the diode should have a small turn-on voltage. For the minimum power loss while the diode is off, the reverse saturation current should be low. 2 2 Dn n D i p ni I o qa Ln Na Lp Nd bi kt N N ln d q n 2 i a

31 Last Criteria The breakdown voltage must be greater than the magnitude of the larger reverse bias applied to the diode. BR is inversely proportional to the doping level of the most lightly doped side of the p-n junction The maximum reverse bias voltage is called the peak inverse voltage (PI).

32 Alternative Circuit: Half-Wave Rectifier

33 Smoothing the output voltage

34 Example Transformer steps down the input voltage to +/- 12 Diode used is a D1N4002 1k resistor 10mF capacitor

35 M P r L T - P T p

36 Wait that statement about the diode selection criteria needs to be modified for this circuit! Let s assume that the capacitor doesn t have a chance to discharge before the voltage of the input power supply is at its minimum value. The diode is reverse biased at twice the magnitude of the peak input voltage So, the criteria on the breakdown voltage is even more severe Now, assume that the reverse saturation current is large. This current will help speed the discharge rate of the capacitor, causing the ripple voltage to be larger than expected. So, the criteria on the reverse breakdown voltage is still important. However, it can be ignored if the reverse saturation current is less than 10% of the minimum current through the load resistor while the capacitor is discharging.

37 Ripple oltage If you assume that the diode turns off (becomes an open) as soon as the input voltage begins to drop from its maximum value Then the output voltage is the voltage across the capacitor (10mF) as it discharges through the resistor (1k) Until the input voltage equals the output voltage plus the turn-on voltage of the diode When the diode turns on and the capacitor begins to be recharged.

38 Ripple oltage frc f T RC T T T RC T e M r p p M r p M r RC T M L M r 1 then, if ) (1 ' ' '

39 Power Conversion Efficiency the capacitor can assumed to be linearly decreasing. drop across the voltage T and assume that T' you if - wave rectifier filtered half for a ) ( - wave rectifier half for a P r M P L M P M

40 Things to Know From This Lecture Optimal diode is a lightly doped p-n junction For a properly designed circuit, ON and OFF piecewise models are used Reverse saturation current of a lightly doped p-n junction is not ideal for this application Three calculations are needed to map the output voltage using piecewise model Max. input voltage, minimum input voltage, and input voltage at which the diode model switches between ON and OFF Output voltage when diode is on varies linearly with input voltage: o = in g A transformer is used to step down (or up) the input voltage as needed for the application.

41 Results using Ideal Diode Equation Current does flow whenever in is not equal to zero o does not vary linearly with in Pspice Simulation Uses a more complex model based on the Ideal Diode Equation Inclusion of parasitic capacitances means there is a frequency dependence to the circuit operation Not shown was the temperature dependence of the operation (but you can do this at home). Not all of the answers obtained from the simulation are correct. First cycle in transient response is different because initial charge on capacitors (external and parasitic) was zero.

42 Filtered half-wave rectifier results in a better dc output voltage Ripple voltage is a function of the maximum voltage on the capacitor, the frequency of the input voltage, and the RC time constant of the load. Better power conversion than simple half-wave rectifier circuit Significantly increases the maximum reverse bias voltage on the diode Reverse saturation current of the diode may influence ripple voltage

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

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

More information

Experiment No. 5 FULL-WAVE RECTIFIERS AND POWER SUPPLIES

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

More information

Properties of electrical signals

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

More information

Diodes (non-linear devices)

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)

More information

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

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

More information

Week 3: Diode Application Circuits

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

More information

ELEC 2020 EXPERIMENT 6 Zener Diodes and LED's

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

More information

13/02/2016. Diode Applications

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

More information

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

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

More information

Lecture - 4 Diode 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

More information

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

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.

More information

Chapter 16. Diodes and Applications ISU EE. C.Y. Lee

Chapter 16. Diodes and Applications ISU EE. C.Y. Lee 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

More information

Rectifier circuits & DC power supplies

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

More information

Chapter 16. Diodes and Applications. Objectives

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

More information

EE/CE 3111 Electronic Circuits Laboratory Spring 2015

EE/CE 3111 Electronic Circuits Laboratory Spring 2015 Lab 2: Rectifiers Objectives The objective of this lab is for you to become familiar with the functionality of a diode in circuits. We will experiment the use of diodes in limiting and rectifying circuits.

More information

DEALING WITH AC MAINS

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.

More information

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

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

More information

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

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

More information

Fundamentals of Microelectronics

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

More information

Analog & Digital Electronics Course No: PH-218

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

More information

The D.C Power Supply

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

More information

See Horenstein 4.3 and 4.4

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

More information

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

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

More information

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

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

More information

Lecture 8 Diode Applications in Microelectronic Circuits

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

More information

Semiconductors, Diodes and Their Applications

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

More information

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. 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

More information

Diode Circuits. Operating in the Reverse Breakdown region. (Zener Diode)

Diode Circuits. Operating in the Reverse Breakdown region. (Zener Diode) Diode Circuits Operating in the Reverse Breakdown region. (Zener Diode) In may applications, operation in the reverse breakdown region is highly desirable. The reverse breakdown voltage is relatively insensitive

More information

electronics fundamentals

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

More information

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

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

More information

DIODE CIRCUITS LABORATORY. Fig. 8.1a Fig 8.1b

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,

More information

Lab Report No.1 // Diodes: A Regulated DC Power Supply Omar X. Avelar Omar de la Mora Diego I. Romero

Lab Report No.1 // Diodes: A Regulated DC Power Supply Omar X. Avelar Omar de la Mora Diego I. Romero Instituto Tecnológico y de Estudios Superiores de Occidente (ITESO) Periférico Sur Manuel Gómez Morín 8585, Tlaquepaque, Jalisco, México, C.P. 45090 Analog Electronic Devices (ESI038 / SE047) Dr. Esteban

More information

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

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

More information

CHAPTER 2B: DIODE AND APPLICATIONS. D.Wilcher

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

More information

ANADOLU UNIVERSITY DEPARTMENT OF ELECTRICAL AND ELECTRONICS ENGINEERING

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

More information

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

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

More information

Precision Diode Rectifiers

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

More information

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

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

More information

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

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

More information

Homework Assignment 03

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

More information

Lecture - 5 Zener Diode and Applications

Lecture - 5 Zener Diode and Applications Basic Electronics (Module 1 Semiconductor Diodes) Dr. Chitralekha Mahanta Department of Electronics and Communication Engineering Indian Institute of Technology, Guwahati Lecture - 5 Zener Diode and Applications

More information

CIRCUITS LABORATORY. Experiment 8. DC Power Supplies

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

More information

ELEC 435 ELECTRONICS I. Rectifier Circuits

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

More information

Analog & Digital Electronics Course No: PH-218

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:

More information

electronics fundamentals

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.

More information

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

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

More information

Diodes & Power Supplies

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

More information

EXPERIMENT 1 PSPICE Simulation of Diode Circuits

EXPERIMENT 1 PSPICE Simulation of Diode Circuits İzmir University of Economics EEE 206 Introduction to Electronics Circuits Lab A. Background EXPERIMENT 1 PSPICE Simulation of Diode Circuits Download, print and read the tutorial on the usage of ORCAD/PSPICE

More information

Solution Tutorial 1. Diode Basics, Application and Special Diodes

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

More information

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 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

More information

THE TRAFFIC LIGHT APPEARED EARLY IN DIODES CHAPTER17 THE LEARNING GOALS FOR THIS CHAPTER ARE: >>> Courtesy of Mark Nelms

THE TRAFFIC LIGHT APPEARED EARLY IN DIODES CHAPTER17 THE LEARNING GOALS FOR THIS CHAPTER ARE: >>> Courtesy of Mark Nelms IRWIN_CH17835856hr 3/7/08 3:04 PM Page 835 CHAPTER17 DIODES THE LEARNING GOALS FOR THIS CHAPTER ARE: Learn the basic characteristics of a diode Learn how to model diodes Be able to analyze circuits containing

More information

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

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

More information

ENGR-4300 Electronic Instrumentation Quiz 4 Spring 2011 Name Section

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)

More information

Supplement Reading on Diode Circuits. http://www.inst.eecs.berkeley.edu/ edu/~ee40/fa09/handouts/ee40_mos_circuit.pdf

Supplement Reading on Diode Circuits. http://www.inst.eecs.berkeley.edu/ edu/~ee40/fa09/handouts/ee40_mos_circuit.pdf EE40 Lec 18 Diode Circuits Reading: Chap. 10 of Hambley Supplement Reading on Diode Circuits http://www.inst.eecs.berkeley.edu/ edu/~ee40/fa09/handouts/ee40_mos_circuit.pdf Slide 1 Diodes Circuits Load

More information

Project: Half Wave Rectifier

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

More information

Yrd. Doç. Dr. Aytaç Gören

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

More information

Technical University of Gdańsk Department of Medical and Ecological Electronics. Laboratory of Basic Electronics Exercise 2

Technical University of Gdańsk Department of Medical and Ecological Electronics. Laboratory of Basic Electronics Exercise 2 Technical University of Gdańsk Department of Medical and Ecological Electronics Laboratory of Basic Electronics Exercise 2 prepeared by : Krzysztof Suchocki Gdańsk 1999 Exercise 2 Detection diodes, Zener

More information

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

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

More information

Chapter 2 MENJANA MINDA KREATIF DAN INOVATIF

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

More information

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

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.

More information

Introduction to Power Supplies

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

More information

ECE 2201 PRELAB 2 DIODE APPLICATIONS

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

More information

LAB IV. SILICON DIODE CHARACTERISTICS

LAB IV. SILICON DIODE CHARACTERISTICS LAB IV. SILICON DIODE CHARACTERISTICS 1. OBJECTIVE In this lab you are to measure I-V characteristics of rectifier and Zener diodes in both forward and reverse-bias mode, as well as learn to recognize

More information

Figure 1. Diode circuit model

Figure 1. Diode circuit model Semiconductor Devices Non-linear Devices Diodes Introduction. The diode is two terminal non linear device whose I-V characteristic besides exhibiting non-linear behavior is also polarity dependent. The

More information

Chapter 3 Diode Circuits. 3.1 Ideal Diode 3.2 PN Junction as a Diode 3.3 Applications of Diodes

Chapter 3 Diode Circuits. 3.1 Ideal Diode 3.2 PN Junction as a Diode 3.3 Applications of Diodes Chapter 3 Diode Circuits 3.1 deal Diode 3.2 PN Junction as a Diode 3.3 Applications of Diodes 1 Diode s Application: Cell Phone Charger An important application of diode is chargers. 充 電 器 Diode acts as

More information

Analog Electronics I. Laboratory

Analog Electronics I. Laboratory Analog Electronics I Laboratory Exercise 1 DC Power Supply Circuits Aim of the exercise The aim of this laboratory exercise is to become familiar with rectifying circuits and voltage stabilization techniques

More information

Supply circuits Voltage rectifier and regulator circuits

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

More information

EECE251 Circuit Analysis I Set 6: Diodes

EECE251 Circuit Analysis I Set 6: Diodes EECE251 Circuit Analysis I Set 6: iodes Shahriar Mirabbasi epartment of Electrical and Computer Engineering University of British Columbia shahriar@ece.ubc.ca Thanks to r. Linares and r. Yan for sharing

More information

Diodes. 1 Introduction 1 1.1 Diode equation... 2 1.1.1 Reverse Bias... 2 1.1.2 Forward Bias... 2 1.2 General Diode Specifications...

Diodes. 1 Introduction 1 1.1 Diode equation... 2 1.1.1 Reverse Bias... 2 1.1.2 Forward Bias... 2 1.2 General Diode Specifications... Diodes Contents 1 Introduction 1 1.1 Diode equation................................... 2 1.1.1 Reverse Bias................................ 2 1.1.2 Forward Bias................................ 2 1.2 General

More information

Homework Assignment 06

Homework Assignment 06 Question 1 (2 points each unless noted otherwise) Homework Assignment 06 1. Typically, the C-E saturation voltage for a BJT, namely V CE(sat), is in the range of (circle one) Answer: (a) (a) 0.2 1.0 V

More information

Chapter 22 Further Electronics

Chapter 22 Further Electronics hapter 22 Further Electronics washing machine has a delay on the door opening after a cycle of washing. Part of this circuit is shown below. s the cycle ends, switch S closes. t this stage the capacitor

More information

Electronic Instrumentation Project 3 Build an Astable Multivibrator Experiment 8 Diodes

Electronic Instrumentation Project 3 Build an Astable Multivibrator Experiment 8 Diodes Electronic Instrumentation Project 3 Build an Astable Multivibrator Experiment 8 Diodes www.rpi.edu/~sawyes/courses Agenda Review Experiment 7: Flip Flops Review: Steps to understanding the 555 Timer RC

More information

Analog Electronics. Module 1: Semiconductor Diodes

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

More information

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

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

More information

Rectifiers and filters

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

More information

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

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

More information

Diodes and Transistors

Diodes and Transistors Diodes What do we use diodes for? Diodes and Transistors protect circuits by limiting the voltage (clipping and clamping) turn AC into DC (voltage rectifier) voltage multipliers (e.g. double input voltage)

More information

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:

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: 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.

More information

DIODE CIRCUITS CHAPTER 2

DIODE CIRCUITS CHAPTER 2 CHAPTER 2 DIODE CIRCUITS As discussed in the previous section, diodes are essentially one-way valves. They carry current in one direction, but block current in the other. In addition, in the forward conduction

More information

CHAPTER 5. Voltage Regulator

CHAPTER 5. Voltage Regulator CHAPTER 5 Voltage Regulator In your robot, the energy is derived from batteries. Specifically, there are two sets of batteries wired up to act as voltage sources; a 9V battery, and two 1.5V batteries in

More information

Single phase, uncontrolled rectification (conversion)

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

More information

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

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

More information

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

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

More information

Circuit 1: Half-Wave Rectifier

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

More information

LAB IV. SILICON DIODE CHARACTERISTICS

LAB IV. SILICON DIODE CHARACTERISTICS LAB IV. SILICON DIODE CHARACTERISTICS 1. OBJECTIVE In this lab you will measure the I-V characteristics of the rectifier and Zener diodes, in both forward and reverse-bias mode, as well as learn what mechanisms

More information

EE 321 Analog Electronics, Fall 2013 Homework #5 solution

EE 321 Analog Electronics, Fall 2013 Homework #5 solution EE 321 Analog Electronics, Fall 2013 Homework #5 solution 3.26. For the circuit shown in Fig. P3.26, both diodes are identical, conducting 10mA at 0.7V, and 100mA at 0.8V. Find the value of for which V

More information

Power supplies. EE328 Power Electronics Assoc. Prof. Dr. Mutlu BOZTEPE Ege University, Dept. of E&E

Power supplies. EE328 Power Electronics Assoc. Prof. Dr. Mutlu BOZTEPE Ege University, Dept. of E&E Power supplies EE328 Power Electronics Assoc. Prof. Dr. Mutlu BOZTEPE Ege University, Dept. of E&E EE328 POWER ELECTRONICS Outline of lecture Introduction to power supplies Modelling a power transformer

More information

EE 255 ELECTRONICS I LABORATORY EXPERIMENT 2 POWER SUPPLY DESIGN CONSIDERATIONS

EE 255 ELECTRONICS I LABORATORY EXPERIMENT 2 POWER SUPPLY DESIGN CONSIDERATIONS EE 55 ELETRONIS I LABORATORY EXPERIMENT POWER SUPPLY ESIGN ONSIERATIONS OBJETIES In this experiment you will Learn how to select the best rectifier circuit for your application Gain experience in designing

More information

TRANSISTOR SWITCHING

TRANSISTOR SWITCHING TRANSISTOR SWITCHING Introduction Electronic circuits inevitably involve reactive elements, in some cases intentionally but always at least as parasitic elements. Although their influence on circuit performance

More information

EXPERIMENT 2 HALF-WAVE & FULL- WAVE RECTIFICATION

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

More information

Figure 1: (a) Diode cross section. (b) Reverse biased diode. (c) Forward biased diode.

Figure 1: (a) Diode cross section. (b) Reverse biased diode. (c) Forward biased diode. The Junction Diode Basic Operation The diode is fabricated of a semiconductor material, usually silicon, which is doped with two impurities. One side is doped with a donor or n-type impurity which releases

More information

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

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

More information

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 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

More information

VISHAY. Vishay Semiconductors

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

More information

Lab 1 Diode Characteristics

Lab 1 Diode Characteristics Lab 1 Diode Characteristics Purpose The purpose of this lab is to study the characteristics of the diode. Some of the characteristics that will be investigated are the I-V curve and the rectification properties.

More information

Lab 3 Rectifier Circuits

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

More information

= V peak 2 = 0.707V peak

= 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

More information

Analog Electronics I Laboratory Exercise 1 DC Power Supply Circuits

Analog Electronics I Laboratory Exercise 1 DC Power Supply Circuits Analog Electronics I Laboratory Exercise 1 DC Power Supply Circuits Aim of the exercise The aim of this laboratory exercise is to become familiar with rectifying circuits and voltage stabilization techniques

More information

Semiconductor Diode Rectification (Adapted for ECE 305 W'99)

Semiconductor Diode Rectification (Adapted for ECE 305 W'99) Semiconductor Diode Rectification (Adapted for ECE 305 W'99) Objective Preferably (in general) electronic circuitry is energized from a voltage source, i.e., a source for which ideally no current flows

More information

Lecture 8 Root mean square

Lecture 8 Root mean square Lecture 8: ECEN 14 Introduction to Analog and Digital Electronics Lecture 8 oot mean square Concept of a sinusoidal signal Examples Application to rectified signals obert. McLeod, University of Colorado

More information