电路与电子学实验
DESCRIPTION
电路与电子学实验. 电子学部分. 1. 课程介绍 电路与电子学实验是一门面向计算机科学与技术、软件工程、自动化、测控技术等专业的基础实践课程。 2. 实验目的 培养学生的理论转化为实践知识的能力,学生动手能力和创新能力; 3. 实验宗旨 努力给学生创造一个合理的高效的模拟电子技术实验平台。. 实验一 常用电子仪器的使用. 一、实验目的 1 .了解常用电子仪器的主要技术指标、性能和面板上各旋钮的 功能作用。 2 .初步掌握其使用方法和一般的测量技术。 3. 学会正确使用与本实验有关的仪器。. - PowerPoint PPT PresentationTRANSCRIPT
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1. 2. 3.
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1 2 3.
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1111
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111 11 12
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2
122KHz4VRCCS-4125ACH1CH2ALTCHOPCH1CH2V/DIVCH213
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13
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13XD360/DXF = F
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1 CDM-8045A500HACS-4125A1.31820V6.000
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2.
CH1CH2T/DIV0.2msV/DIV0.5VYXVmT
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SP1631ASP1641D1KHz0.51V
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SP1631ASP1641D1KHzCS-4125ACS-4125WY2174ACDM8045ACDM8045
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2VT/DIV
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12
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1.SBL
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DCV200V2.
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3.
-
4.
-
5.
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6.
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1. 2. 3.
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71 71
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1.PNPN0.6 ~ 0.8V0.2 ~ 0.3V VI71QT2
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71
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2 Q
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ICEO0 ICIB
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72
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2.72IBIB
3PN500HA7374
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73 500HA 74
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R100R1KR10K
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NPNPNP75a(b)75
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1B R100R1KNPNPNP NPNPNP
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2CE
NPN76abcd
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76 CE
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76aR1KCEBCBCBCRB4CE100KRB
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1
500HAR100R1KR10K
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2 QT2QT2QQ171IDVDIZVZ
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3
QT2QT2IBIC= IC / IB
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4
9011500HANPNPNPE()B()C77
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77
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1500HAR1R102500HA
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123
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8181
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QRC8182
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81 82
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83
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8-4
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9013NPN,=100VCC12VICQ =2.4mAAV =100RL =5.1K|AV|100
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1
33
2R4 VEQ =0.2.3VCC
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3 I1Q>>IBQVsI1Q =510IBQ
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4RC RCRLAVRC VCEQRC5C1C2C3
C1C2C3C1C21050FC330100F
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28-2
Rw2= RC =RW1TICQ IEQ = VEQ / RE Vi = 0
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8-2 VBEQ0.7VIEQICQ
VCEQ /VVBEQ /VVEQ /VVCQ /VIEQ= VEQ/REICQ= (VCC-VCQ)/RC
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1
1AV f1KHzVi5mV
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2Ri
RiViIi
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84RSVSVi
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84 Ri 85 RO
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3Ro
RoRo
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4BW
BWAVM0.707fHfL
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f = 1KHzVOVi0.707VOfHVi0.707VOfL
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5
RW1 RW1VCEQ RW1VCEQ
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1RCRL2RCRL3RB1RB2?4C3
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1. 2. 3.
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9191
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1 LA4100LA4102DG4100DG4102DG4110DG4112LM386LM386814LA4100DG4100DG4112LM38699293
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91 LA4100(4102)
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92 DG4112
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93 LM386
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LA41001.V3V5R4R52.V1V2R1R2R3R f3.V4V6R6V5V6 4.V7R7R 85.V8V14R10V12V13NPNV8V14PNPV9V11R9V8V14
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RfRfRf1001CfRfR11 1V2R11CfRf
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LM38693
V1~V4V8~V10D1D2
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2
LA4100LM3869495
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94 LA4100
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95 LM386
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3
1PN
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2 PE 3AV AV 4AP AP 5BWBW = fH - fL6
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VCC5VRL =10 PN 0.2W Vi 15mV fH 10KHz, fL 50Hz
OTLPN PE
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94
1
VOLmax1.414V
Vi 15mV AV 100 AVf R11 / Rf = 20K/Rf Rf 20K/AV =20K/ 100=200 Rf =100R1+RW 10KR1 =10KRW =47K
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2CfC1 C9
fLCf
C1 = Ri=1220K
C9 =
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3C8 C8R10 C8 = R10 =100
4C4C5 C451200pFC5560pF5C2 C3 C6 C7 C2 C3 C6100220FVCCC70.010.1F
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1 1KHzRW1 2 =
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3AVf AVf = VOL /Vi
4APAP= Po/Pi=
APri= R
RVSVO2
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6
SP1631A51
VOn=PN/Pn=
- 1ri 23 VO2
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123
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101
101
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1
-
101
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102 LM7800
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1T15 T16DZ12R4T4T5T3DZ2R3R2R1T2 T1 T4T5`R43R12R13T6786784T10T11T12T13T14DZ3DZ4R5R10R11R14~R16 LM7800102
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103 LM7800LM7900LM117217317137237337TO-220103
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2104
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105
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106
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3
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1107
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2108
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3 78001.5A1.2A
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109
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4
1UOL 2RO ROIOU O3SV 10%
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UOLUI+10% UOLUI-10% 4SI I O5
= =
=20lgdB
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6IOmax IOLRL0.5%IOmax
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12V104
1u2
U Iu2
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2D1~D4
U RMID
3
C1 C20.01F~0.33F
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1BTB2u2 u2= V UI = V UOL= V UI=UI~= V UOL=UOL~ V
2RO RO=
3SI
4SV
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5
= = = 20lg
*2
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1UI2UO3NPN
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123
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111111
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I+ =I- =0 |V- - V+|=|VO|/AO =0V+ =V-
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8 14
111
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1
112VOVIVORF
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112
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2 113
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I+ =I-0
V+V- =VI
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3114
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114
VI1 = VI2 = VI3 = VI
R1 = R2 = R3 = RF
Rp = R1 // R2 // R3 // RF
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4115
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115
R1R2R3RF
R1R2R3RF
VoVI2-VI1
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5
VCC/2VCC/21 116VCC/2VoppVCC
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116
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2
117Vopp
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117
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VoVIVo = -10 VI Vo = 11 VI Vo = 20 VI1 10 VI25VI3Vo = 10VI2VI1
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1
2
3
2.
1
2
3
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ri rori =20Mro = 1003. 1RFAufAuf-102R1 = RF /20R2 = RF /10R3 = RF /53 Rp = RF // R1 // R2 // R3
4.
1RF
2R1 = R2 = RF /10R3 = RF
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11VI =0VO=0VO2Auf = Vo / VIVI =0.4VAuf =Vo-VO/ VI
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21VI =0VO=0VO2Auf = Vo / VIVI =0.4VAuf =Vo-VO/ VI31VI1 =VI2 =VI3=0VO=0VO42Vo20VI1 +10VI2+5VI3VI1 =0.2VVI2=0.3VVI3=0.4VVo20VI1 +10VI2+5VI3-VO
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41VI1 =VI2 =0VO=02Vo10VI2 VI1VI2=1.0VVI1=0.5V*5123Vopp
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123?
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3. 4
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121 121
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1
121 RfCfVOT1RF1Vf
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1AVf AV =VO / Vi1+AVFV
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121
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2FV
3rif
ri4rof
roAVORL
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RfRF1T1Rf +RF1Rf122Rf >>RF1Rf >>RL
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122
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2
123
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123
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ARf R1RPCAVf =VOL / Vi = -Rf / R1Rf
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12-3AVf = -1012Vrid =2107ro =1001123A741LM358
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2Rf
3 R1
4 RP Rf R1RPRf / R1=10RP
5
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11Vi100mVf =1KHz2Vi1VS1VO1VOL1fH1fL13Rf3RfVi2VS2VO2VOL2fH2fL24
fH1fL1fH2fL2
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2
1f=1KHzVi5mVViVSVOVOLfHfL2122912VSfVifVOLfVOffHffLf3VE1QVB1QVC1QVE2QVB2QVC2Q41235124VCEQVBEQICQ
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6 f =1KHz 1
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12
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123.
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141
141
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1
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a b
141
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141ab
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nVRVuTVLTVHVctrVctrVHn
2
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a b
142
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142ab
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VctrVRmVHVOMn
143RbD1Q
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143
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12V10.5VB13.5V143 VR=-15VVuT=13.5VVLT=10.5VVOM=14VnmVHVctrRb
nRRW1R1mRRW2R2
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1mn2K 2
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1143D1D22TRb310.5V11.5V13.5V12.5V