UNCLASSIFIED NONRESIDENT TRAINING COURSE February 2013 Navy Electricity and Electronics Training Series Module 8-Amplifiers NAVEDTRA 14180A S/N 0504LP1132235 Notice: NETPDTC is no longer responsible for the content accuracy of the NRTCs. For content issues, contact the servicing Center of Excellence: Center for Surface Combat Systems; (540) 284- 1061 or DSN: 234. For course registration, issues, or login issues contact the NRTC Helpdesk at: 1-877-264-8583 DSN: 922-1511 or Email: [email protected] DISTRIBUTION STATEMENT A: Approved for public release; distribution is unlimited. UNCLASSIFIED UNCLASSIFIED Although the words “he,” “him,” and “his” are used sparingly in this course to enhance communication, they are not intended to be gender driven or to affront or discriminate against anyone. DISTRIBUTION STATEMENT A: Approved for public release; distribution is unlimited. UNCLASSIFIED UNCLASSIFIED PREFACE By enrolling in this self-study course, you have demonstrated a desire to improve yourself and the Navy. Remember, however, this self-study course is only one part of the total Navy training program. Practical experience, schools, selected reading, and your desire to succeed are also necessary to successfully round out a fully meaningful training program. THE COURSE: This self-study course is organized into subject matter areas, each containing learning objectives to help you determine what you should learn along with text and illustrations to help you understand the information. The subject matter reflects day-to-day requirements and experiences of personnel in the rating or skill area. It also reflects guidance provided by Enlisted Community Managers (ECMs) and other senior personnel, technical references, instructions, etc., and either the occupational or naval standards, which are listed in the Manual of Navy Enlisted Manpower Personnel Classifications and Occupational Standards, NAVPERS 18068. THE QUESTIONS: The questions that appear in this course are designed to help you understand the material in the text. VALUE: In completing this course, you will improve your military and professional knowledge. Importantly, it can also help you study for the Navy-wide advancement in rate examination. If you are studying and discover a reference in the text to another publication for further information, look it up. 2013 Edition Published by Center for Surface Combat Systems (CSCS) NAVSUP Logistics Tracking Number 0504-LP-113-2235 i UNCLASSIFIED UNCLASSIFIED Sailor’s Creed “I am a United States Sailor. I will support and defend the Constitution of the United States of America and I will obey the orders of those appointed over me. I represent the fighting spirit of the Navy and those who have gone before me to defend freedom and democracy around the world. I proudly serve my country’s Navy combat team with honor, courage and commitment. I am committed to excellence and the fair treatment of all.” ii UNCLASSIFIED UNCLASSIFIED TABLE OF CONTENTS CHAPTER PAGE 1 Amplifiers….…..……….................................................................. 1-1 2 Video and RF Amplifiers……......................................................... 2-1 3 Special Amplifiers……………….................................................... 3-1 APPENDIX A Glossary......................................................................................... A-1 Course Assignments follow Appendix A iii UNCLASSIFIED UNCLASSIFIED NAVY ELECTRICITY AND ELECTRONICS TRAINING SERIES The Navy Electricity and Electronics Training Series (NEETS) was developed for use by personnel in many electrical and electronic-related Navy ratings. Written by, and with the advice of, senior technicians in these ratings, this series provides beginners with fundamental electrical and electronic concepts through self-study. The presentation of this series is not oriented to any specific rating structure, but is divided into modules containing related information organized into traditional paths of instruction. The series is designed to give small amounts of information that can be easily digested before advancing further into the more complex material. For a student just becoming acquainted with electricity or electronics, it is highly recommended that the modules be studied in their suggested sequence. Considerable emphasis has been placed on illustrations to provide a maximum amount of information. In some instances, knowledge of basic algebra may be required. Course descriptions and ordering information may be found at https://www.netc.navy.mil then click on the Programs tab, then select the Nonresident Training Courses from the list. Throughout the text of this course and while using technical manuals associated with the equipment you will be working on, you will find the below notations at the end of some paragraphs. The notations are used to emphasize that safety hazards exist and care must be taken or observed. WARNING AN OPERATING PROCEDURE, PRACTICE, OR CONDITION, ETC., WHICH MAY RESULT IN INJURY OR DEATH IF NOT CAREFULLY OBSERVED OR FOLLOWED. CAUTION AN OPERATING PROCEDURE, PRACTICE, OR CONDITION, ETC., WHICH MAY RESULT IN DAMAGE TO EQUIPMENT IF NOT CAREFULLY OBSERVED OR FOLLOWED. NOTE An operating procedure, practice, or condition, etc., which is essential to emphasize. iv UNCLASSIFIED UNCLASSIFIED STUDENT FEEDBACK AND QUESTIONS We value your suggestions, questions, and criticisms on our courses. If you would like to communicate with us regarding this course, we encourage you, if possible, to use e-mail or to post your comments on the Community of Practice (COP) page located at https://wwwa.nko.navy.mil/portal/home/. If you write or fax, please use a copy of the Student Comment form that follows this page. For subject matter questions: E-mail: [email protected] Phone: Comm: 540-284-1061 DSN: 234-4639 Address: COMMANDING OFFICER Center for Surface Combat Systems 5395 First St Dahlgren, VA 22448-5200 v UNCLASSIFIED UNCLASSIFIED Student Comments Course Title: NEETS Module 8-Amplifiers NAVEDTRA: 14180A Date: ____________ We need some information about you: Rate/Rank and Name: _____________ Command/Unit: _________________________ Street Address: ________________ City: _____________ State/FPO: _____ Zip _____ Your comments, suggestions, etc.: Privacy A ct Statement: Under authority of Title 5, USC 301, information regarding your military status is requested in processing your comments and in preparing a reply. This information will not be divulged without w ritten authorization to anyone other than those within DOD for official use in determining performan ce. vi UNCLASSIFIED UNCLASSIFIED This page left intentionally blank. vii UNCLASSIFIED NEETS MODULE 8-Amplifiers UNCLASSIFIED 1 AMPLIFIERS LEARNING OBJECTIVES After you finish this chapter, you should be able to do the following: 1. Define amplification and list several common uses; state two ways in which amplifiers are classified. 2. List the four classes of operation of, four methods of coupling for, and the impedance characteristics of the three configurations of a transistor amplifier. 3. Define feedback and list the two types of feedback. 4. Describe and state one use for a phase splitter. 5. State a common use for and one advantage of a push-pull amplifier. 1.1 INTRODUCTION This chapter is a milestone in your study of electronics. Previous modules have been concerned more with individual components of circuits than with the complete circuits as the subject. This chapter and the other chapters of this module are concerned with the circuitry of amplifiers. While components are discussed, the discussion of the components is not an explanation of the working of the component itself (these have been covered in previous modules) but an explanation of the component as it relates to the circuit. The circuits this chapter is concerned with are AMPLIFIERS. Amplifiers are devices that provide AMPLIFICATION. That doesn't explain much, but it does describe an amplifier if you know what amplification is and what it is used for. 1.2 WHAT IS AMPLIFICATION? Just as an amplifier is a device that provides amplification, amplification is the process of providing an increase in AMPLITUDE. Amplitude is a term that describes the size of a signal. In terms of a.c. amplitude usually refers to the amount of voltage or current. A 5- volt peak-to-peak a.c. signal would be larger in amplitude than a 4-volt peak-to-peak a.c. signal. "SIGNAL" is a general term used to refer to any a.c. or d.c. of interest in a circuit; e.g., input signal and output signal. A signal can be large or small, ac. or d.c., a sine wave or nonsinusoidal, or even nonelectrical such as sound or light. "Signal" is a very general term and, therefore, not very descriptive by itself, but it does sound more technical than the word "thing". It is not very impressive to refer to the "input thing" or the "thing that comes out of this circuit." 1-1 UNCLASSIFIED