생생한 전자 실기 실습

제1장 전기ㆍ전자 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(multi-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
4. 전자기기 기능사 측정 과제 ····································· 112

제3장 기초 실습 과제

작품 제작 방법 ················································ 122
1. 회로도 분석 및 패턴도(부품 배치도) 작성 ··········································· 122
2. 부품의 실장 ··························································································· 123
3. 납땜 작업 ······························································································ 125
4. 배선 작업 ···························································································· 128
5. 동작 검사 ······························································································ 129

기초 실습 과제 ················································ 130
1. 2석 윙커 ································································································ 130
2. 새소리 발진기 ······················································································· 132
3. 단안정 멀티바이브레이터 ······································································ 134
4. 쌍안정 멀티바이브레이터 ······································································ 136
5. 비안정 멀티바이브레이터 ······································································ 138
6. OR 논리 회로 ······················································································· 140
7. AND 논리 회로 ···················································································· 142
8. EX-OR 논리 회로 ··············································································· 144
9. NOR 게이트를 이용한 R/S 플립플롭 ················································· 146
10. 톤(Tone) 경보기 ················································································· 148
11. 8진 Up/Down Counter ··································································· 150

제4장 전자기기 기능사 기출 과제

전자기기 기능사 기출 과제 ····································· 154
1. 2음 경보기 ···························································································· 154
2. 정역 제어 회로 ······················································································ 158
3. 박자 발생기 ··························································································· 162
4. 카운터 선택 표시 회로 ········································································· 166
5. 위치 표시기 ··························································································· 170
6. 99진 계수기 ·························································································· 174
7. 전자 사이크로 ······················································································· 178
8. 전자 주사위 ··························································································· 182
9. 채널 전환 회로 ······················································································ 186
10. 횡단보도 제어기 ·················································································· 190
11. 계수 마감 경보 회로 ··········································································· 194
12. 전자 룰렛 ···························································································· 198
13. 예약된 숫자 표시기 ············································································ 202
14. 자동 링 카운터 ··················································································· 206
15. 프리셋 카운터 ····················································································· 210
16. 10진 계수기 ························································································ 214
17. 가변 순차기 ························································································· 218
18. 순차 점멸기 ························································································· 222
19. 10진수 설정 경보기 ············································································ 226
20. 빛 차단에 의한 5진 계수 정지 회로 ················································ 230
21. 빛에 의한 업/다운 선택 회로 ····························································· 234

전자기기 기능사 회로 스케치 기출 문제 ·························· 238

제5장 전자계산기 기능사 기출 과제

1. 2bit 감산기 ··························································································· 268
2. 4Bit 가산기 ·························································································· 272
3. 4Bit 덧셈기 ·························································································· 276
4. A/D 변환기 ··························································································· 280
5. BCD 10진 카운터 ················································································ 284
6. COMPARATOR(비교기) ······································································ 288
7. UP-DOWN COUNTER ······································································ 292
8. 논리 검출기 ··························································································· 296
9. 엔코더/디코더 ······················································································· 300
10. 4비트 일치 검출기 ·············································································· 304
11. Multiplier(곱셈기) ············································································· 308
12. 대수 비교기 ························································································· 312
13. 시분할 계수기 ····················································································· 316
14. 4Bit Demultiplexer ·········································································· 320