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이 책은 전자기기 기능사 실기 시험을 대비하는 학생들에게 도움을 주기 위해 급변하는 교육과정에 맞추어 다음 사항에 역점을 두고 교재를 집필하였다.

첫째, NCS에 따른 한국산업인력공단에 공개된 적중률 높은 회로도를 수록하였으며, 가장 최근의 기출문제를 교재에 반영하였다.

둘째, 실기 작업에 필요한 구성 요소, 회로도, 동작 원리, 패턴도 등 핵심 내용만 교재에 담고, 불필요한 이론을 제거하여 자격증 취득을 위한 내실을 기하였다.

셋째, 회로도 및 패턴도를 컬러로 수록하여 줌으로써 수험생들이 회로 소자를 쉽게 식별할 수 있도록 하였다.

제1장 전자ㆍ전자 실기/실습 기초 지식

1. 그리스 문자 및 SI 접두어 ······································· 14

2. 단위기호 및 명칭 ············································· 15

3. 전기 및 전자 기호와 기능 ······································ 16

4. 각종 소자의 구조와 성능 ······································· 24
4-1 저항기(resistor) ·················································································· 24
4-2 콘덴서(condenser) ·············································································· 30
4-3 인덕터(inducter) ················································································· 34
4-4 스피커(speaker) ·················································································· 36
4-5 릴레이(relay) ······················································································· 37
4-6 스위치(switch) ···················································································· 39
4-7 수정 진동자 및 수정 발진기 ······························································· 43

5. 반도체 소자의 구조와 특성 ····································· 44
5-1 다이오드(diode) ··················································································· 44
5-2 트랜지스터(transistor) ······································································· 47
5-3 전계 효과 트랜지스터(FET：field effect transistor) ····················· 51
5-4 광소자(photo device) ········································································· 53
5-5 트리거 소자(trigger device) ······························································ 60
5-6 사이리스터(thyristor) ········································································· 65
5-7 기타 여러 소자 ···················································································· 70

제2장 측정기 사용 방법

1. 회로 시험기(circuit tester) ····································· 78
1-1 각 부위별 명칭 ···················································································· 78
1-2 측정 방법 ····························································································· 81

2. 오실로스코프(oscilloscope) ···································· 86
2-1 각 부위별 명칭 ···················································································· 86
2-2 기본 측정 ····························································································· 91
2-3 응용 측정 ····························································································· 99

3. 함수 발진기(function generator) ······························ 107
3-1 각 부위별 명칭 ·················································································· 107
3-2 조작 순서 ··························································································· 109
3-3 사용 방법 ··························································································· 109

제3장 기초 실습 과제

작품 제작 방법 ················································ 114
1. 회로도 분석 및 패턴도(부품 배치도) 작성 ··········································· 114
2. 부품의 실장 ··························································································· 115
3. 납땜 작업 ······························································································ 117
4. 배선 작업 ···························································································· 120
5. 동작 검사 ······························································································ 121

전자기기 기능사 기출 과제 ····································· 122
1. 2음 경보기 ···························································································· 122
2. 정역 제어 회로 ······················································································ 126
3. 박자 발생기 ··························································································· 130
4. 카운터 선택 표시 회로 ········································································· 134
5. 위치 표시기 ··························································································· 138
6. 99진 계수기 ·························································································· 142
7. 전자 사이크로 ······················································································· 146
8. 전자 주사위 ··························································································· 150
9. 채널 전환 회로 ······················································································ 154
10. 횡단보도 제어기 ·················································································· 158
11. 계수 마감 경보 회로 ··········································································· 162
12. 전자 룰렛 ···························································································· 166
13. 예약된 숫자 표시기 ············································································ 170
14. 자동 링 카운터 ··················································································· 174
15. 프리셋 카운터 ····················································································· 178
16. 10진 계수기 ························································································ 182
17. 가변 순차기 ························································································· 186
18. 순차 점멸기 ························································································· 190
19. 10진수 설정 경보기 ············································································ 194
20. 빛 차단에 의한 5진 계수 정지 회로 ················································ 198
21. 빛에 의한 업/다운 선택 회로 ····························································· 202

제4장 전자기기 기능사 측정과제

전가기기 기능사 측정과제 ···········································································208

제5장 전자기기 기능사 회로 스케치 과제

전자기기 기능사 회로 스케치 과제 ····························································· 218