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IC电路设计实例pdf电子书版本下载

IC电路设计实例
  • Bill Furlow著;李清庭译 著
  • 出版社: 罗拔书局
  • ISBN:
  • 出版时间:1978
  • 标注页数:410页
  • 文件大小:11MB
  • 文件页数:431页
  • 主题词:

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图书目录

目录 3

第一部份 类比,线性及通讯系统设计(Analog,Linear and Communications Designs) 3

不含积分网路的垂直同步分离器(Vertical synch separator has no integrator network) 3

工作范围从数毫伏至数伏的精准截割器(Precision clipper operates from millivolts to volts) 4

用作声频滤波器的数位积体电路(Digital ICs serve as audio filters) 5

稳定误差的类比除法器(An error stabilized analog divider) 7

不需功率供给的积分倾卸电路(Integrate and dump circuit uses no power supply) 9

锁相频率鉴别器(Phase-locked frequency discriminator) 9

简化调变器设计的不相容或闸电路(Exclusive-OR gates simplify modem designs) 11

一电路用来选择两个类比信号中较大者(Circuit selects larger of two analog signals) 12

供转换器使用的电流——电压变换器(Cwrrent-to-voltage converter for transducer use) 14

使用光耦合器的安置——复量栓路(Set-reset latch uses optical couplers) 15

利用FET四极体的乘积探测器(Product Detector Uses FET Tetrode) 16

使用FET的低杂讯前级放大器(Low-Noise Preamplifier Uses FET) 17

比较器附带有无交互作用之调节器(Comparator with 18

noninteracting adjustments) 18

高电压源追踪器(High-voltage source follower) 19

持样电路(Sample-Hold Circuit) 21

于绝对值平方电路中二极体供给开关与隔离功用(Diodes provide switching and isolation for absquare circuit) 22

改进之绝对值电路(Improved absolute-value circuit) 23

固定偏压能延伸齐纳调变器之范围(Fixed bias extends zener range) 26

能检知正峰点或页峰点的闸电路(Gating circuit detects positive or negative peaks) 27

使用积体电路倍乘器测量确实的RMS值(True RMS measurements using IC multipliers) 28

快速上升电流开关(Fase-Rise Current Switch) 29

类比开关与积体电路放大器控制80V rms的输出(Analog switch and IC amp controls 80V rms) 31

具有高度精确度的类比算术单元(Analog arithmetic unit offers good accuracy) 33

具有临限及迟滞控制的类比监控器(Analog moniton has threshold and hysteresis controls) 34

用IC运算放大器制作低廉的仪表用之放大器(IC op amps make inexpensive instrumentation amplifiers) 35

由电压控制的电流源(Voltage-Controlled current source) 36

具电动态范围之线性信号压缩器(Linear signal compressor has wide dynamic range) 38

用IC作取样放大器或是音爆闸路(IC functions as sampling amplifier or tone-burst gate) 40

在视频放大器中利用光效应来作隔离(Use opto-isolation in your next video amp) 41

有源滤波器中的运算放大器亦可提供增益(Op amp in active filter can also provide gain) 42

电晶体桥检知器(Transistor Bridge Detector) 43

具有锁相功能的运算放大器之比较器(Op-amp comparator with latching function) 45

易于校准之锁相环路立体译码器(Phase-locked loop stereo decoder is aligned easily) 46

利用同步闸级信号来减小积分器的暂态期(Reduce integrator transients with synchronized gate signals) 47

定电压汇流器(Constant-Voltage Current Sink) 49

不具偏离电压的改良射极随耦器(Modi fied Emitter Follower Has No Offset) 50

微分器电路产生——相对的变量(Differentiator circuit produces a relative change) 51

产生线性脉波宽度调变的电路(Circuit yields linear pulse-width modulation) 52

为IC运算放大器设计的电流提升器(Current boosters for IC op amps) 53

使用一个电晶体制作50-db动态范围的压缩放大器(One Transistor,50-db Dynamic Range Compression Amplifier) 54

感光器自附迟滞效应(Optical sensor has built-in hysteresis) 55

灯光测试变成电路测试(Lamp test) 56

多孔太阳电池放大器(Multi-Aperture Solar Cell Amplifier) 57

同轴电缆驱动电路(Coaxial Cable Driver Circuit) 58

检测相位差之高速电路(High-speed circuit detects phase-difference) 59

温度稳定性极佳之线性调变器(Linear modulator has excellent temperature stability) 61

光射二极体调变器(LED modulator) 62

利用JFET开启电阻以控制运算放大器的增益(JFET switched resistor controls gain of op amps) 63

利用价廉的元件来制作6个数元的A/D转换器(6-bit D/A converter uses inexpensive components) 64

用线性电路来积分脉波列(Linear circuit integrates pulse trains) 66

廉价的UJT线条图案产生器(Low-Cost UJT Raster Generator) 67

隔离电流源(Isolated current source) 68

平方电路能作有效的倍频器(Squaring circuit makes efficient frequency doubler) 69

缓冲器/滤波器抽取WWV的时间码(Buffer/filter ext racts WWV time codes) 70

电晶体电路加速锁相振荡器的同步时间(Transistor circuit speeds synch time of phase-locked ossillator) 71

高效率无抗流圈的垂直扫描(Higher-effi ciencv chokeless vertical sweep) 72

具有广?频宽的相位调变器(Phase modulator has broad bandwidth) 74

中心频率可调且具频宽为常数的有源带通滤波器(Active bandpass filter with adjustable center frequency and constant bandwidth) 75

一极性定位器(A polar clamp) 77

可调位准检测器(Adjustable Level-Detector) 77

被补偿的可调齐电路(Compensated adjustable zener) 78

高速同步检波器(High-speed synchronous detector) 79

定电流源的改进电路(Improved Circuit for Constant-Current Source) 80

PIN二极体在微波时对电压控制振荡器的关闭作用(PIN-diode turnoff for microwove VCO) 82

对大类比信号的振幅交换电路(Amplitude-switching circuit for large analog signals) 83

不用FET的多工电路(Multiplexing without FETs) 84

双平衡二极体混合器(Double-Balanced Diode Mixer) 85

低涟波的线性周期对电压转换器(Linear Period-Voltage converter with low ripple) 87

漂移仅为0.5μV?C的IC视频放大器(Achieve 0.5V?C drift in IC Video amplifiers) 89

利用电流源作可变直流偏离电压(Variable dc offset using a current source) 91

追踪持续放大器(Track-and-hold amplifier) 92

可逆线性计数器(Reversible Linear Counter) 93

适用于交直流输入的低功率多端输入比较器(Low-power.multiple-input comparator for ac dc inputs) 95

第二部份 数位与脉波电路(Digital and Pulse Circuits) 99

利用两个IC来消除波缘模糊的现象(End edge ambiguities with two ICs) 99

具有延迟输出的单响多谐振动器(One shot multivibrator has delayed output) 100

由控制信号决定IC计数器的调变数(Control signal determines modulo of IC Counter) 101

单一电晶体可改进CMOS单响多谐振荡器(Single transistor improves CMOS one-shot) 103

简单的双伍码对二进码十进数转换器(Simple bi-quinarv BCD converter) 104

波缘两边皆可产生单响触发器(One shot triggers on both edges) 106

锁相环路中皆相移器(Phase-shi fter for phase locked loops) 107

用输入信号的NOR来控制正反器的工作(Flip Flop ?by Input Signal NOR) 109

?体临限电路具有可调迟滞量(Improved tunnel-?bold circuit has adjustable hysteresis) 110

?secs到hours时间延迟的计时器(Timer? time delays from? secs to hour) 112

两个TTL包?组合可将往上数之BCD计数器转换成往下数(2 TTL Packages convert BCD up-counter for down co?nting) 114

简易FET计时器(Simple FET timer) 115

使用三个ICs的单数位BCD加法器(Single-digit BCD ? uses BICs) 116

具有?锁监控器之数位锁相环路(Digital phase-locked loop with loss-of-lock monitor) 118

两个TTI闸驱动很长的同轴输送线(Two TTL gates drive very long coax lines) 120

简单组合零件的双?脉波器(Double-edge pulser uses few parts) 122

不受杂音影响的栓锁电路(Latching circuit provides noise immunity) 123

将二进位转换成BCD的高速电路(High speed circuit converts binary to BCD) 124

正反器具有改进的上升时间与稳定性(Flip-Flop Has Improved Rise Time And Stability) 126

直流至直流的单响启动电路(DC to DC One-Starting Circuit) 127

J-FET产生低功率TTL所需求的清除与预置功能(J-FET generates clear or preset commands for low-power TTL) 128

改良的单响输出电路(Improved One-Shot Output Circuit) 129

同步锁相环路(A synchronized phase locked loop) 130

快速复原的单响多谐振动器能产生10∶1的宽度控制(Fast-Recovery One-Shot Multi Gives 10∶1 Width Control) 132

光感磁带标记检测器(Optical tape-marker detector) 133

廉价的手控脉波产生器(Low-cos?manual pulser) 134

施密特触发器与单稳多谐振动器的组合(Combination Schmitt Trigger-Monostable Multivibrator) 135

广范围的单稳多谐振动器(Wide Range Monostable Mult ivibrator) 136

可调施密特触发器或是振幅比较器(Variable Schmitt,Amplitude Comparator) 137

只有ICs的电路来改良单响多谐振动器功能(Improved one-shot multivibrator using ICs only) 139

低迟滞触发器电路(Low-Hysteresis Trigger Circuit) 140

一个可设计的组合逻辑电路(A programmable combinatioual logic circuit) 141

外来脉波检测器(Extraneous pulse detector) 143

可变延迟遮没脉波产生器(Variable delay blanking-pulse generator) 144

反重合电路可防止数据的失落(Anti-coincidence circuit prevents loss of data) 145

低迟滞量的稳定临限电路(Stable Threshold Circuit With Low Hysteresis) 146

脉波产生器与CCSL间的连接电路(Pulse generator-to-CCSL interface) 147

在单稳多谐振动器中消除错误的触发(Eliminating False Triggering in Monostable Multis) 150

脉波峰值指示器(Pulse-Peak Indicator) 151

具有脉波与位准输出的正反器(Flip-flop with pulse and level output) 152

使用两个IC的四组NAND闸全加器(Quad NAND full adder uses two ICs) 154

将不平衡变成平衡的位准移位器(Unbalanced to Balanced Level-Shifter) 155

长时段单响电路(Long-Duration One-Shot) 156

同步单响电路(Synchronized one shot) 157

具有50/50任务周次的除以N电路(Divide-by-N circuit has 50/50 duty cycle) 158

互补串接多谐振动器(Complementary series multivibrator) 160

电流源改善单响电路的杂音免役性(Current source improved immunity of one-shot) 161

简化的施密特电路可以产生快速的上升时间(Simplified Schmitt yields fast rise time) 162

MOS移位记录器的计时驱动器(Clock driver for MOS shift registers) 164

可调迟滞量的位准检测正反器(Level Detecting Flip Flop With Adjustable Hysteresis) 166

矽质单向开关检测起始事项(Silicon unilateral switches detect initial event) 167

简单的脉波分相器(Simple Pulse Phase-Splitter) 169

可再触发的单稳电路(Retriggerable monostable) 170

高速,一个IC的单响电路(High-Speed,one-IC one-shot) 171

电路移换异步高频计时波源(Circuit shifts asynchronous high-frequency clock sources) 172

脉波列检测器与计数器(Pulse-Train Detector and Counter) 173

具有高度杂音免疫的可再置单响电路(Resettable one-shot with high noise immunity) 175

三态指示器(Three-State Indicator) 176

用VCO感测电压的两端极限控测器(Double-ended limit detector senses voltage with VCO) 177

传送并联讯息而不需计时脉波的电路(Transfer parallel information without a clock) 178

定电流产生器加速连线或电路(Constant-current generator speeds up wired-OR circuits) 179

使用一个功率源的非反相脉波放大器(Non-Inverting Pulse Amplifier Uses One Power Supply) 181

价廉的LED驱动器可与TTL相配用(Poor man's LED driver is TTL compat ible) 182

低通数位滤波器(Low-Pass digital filter) 183

能在周期场中记忆随机数据的电路(Circui tremembers random data within periodic field) 184

利用方波的双缘触发单响电路(Circuit triggers one shot on both edges of square wave) 186

具有三个IC的电路能够精确测知脉波率(Three IC's accurately sense pulse rate) 187

频率比较器(Frequency Comparator) 188

光感侦测器可直接驱动数位电路(Photo detectors can drive digital ckts directly) 189

单电压电路能产生电源启动重复脉波(Single-Voltage ckt generates“power on”reset pulse) 190

三IC监控脉波宽度(Three ICS monitor pulse width) 191

可变的临限电压组合单响电路(Variable-Threshold Hybrid One-Shot) 192

保持脉波对称性的分频电路(Divider Ckt maintains pulse symmetry) 193

单一IC比较频率与相位(Single IC Compares freqencies and phase) 194

脉波宽度鉴别器(Pulse width discriminator) 195

使用一电晶体以作为ECL与LED交连用(One transistor provides ECL to LED interface) 197

时间延迟的施密特感测器(Time-delayed Schmitt Sensor) 198

脉宽鉴别器(Pulse-Width Discriminator) 199

自我调整的数位比较器(Digital comparator is self-adjusting) 200

CMOS与LPTTL闸组成低功率施密特触发器(CMOS and LPTTL gates make low-power schmitt trigger) 201

时脉产生器具有有地址的输出(Clock pulse generator has addressable output) 202

广范围的三角波和方波产生器(Triangular and square wave generator has wide range) 207

第三部份 信号产生器(Signal Sources) 207

廉价的UJT-SCR时距计(Inexpensive UJT SCR intervalometer) 208

线性的双向斜波产生器(Linear Bidirectional Ramp Generator) 209

运算放大器和一个电晶体产生斜升函数(Op amp and one transistor produce ramp function) 211

可预估输出的广范围斜坡产生器(Wide-range ramp generator has programmable outputs) 212

稳定正弦波振荡器的FET(FET stabilizes sine-wave oscillator) 213

控制Wien桥式振荡器的?纳二极体(Zener-diode controls Wien-bridge oscillator) 214

利用电流调限二极体的梯级波产生器(Staircase generator uses current-regulating diode) 216

以一个IC与三?组成的简单梯级波产生器(Simple ?-step generator useo 1 IC and 3 transi stors) 218

使用运算放大器?成频率可任意调整的三角波产生器(Op ? makes variable-fre?u? triangular wave generator…? 229

控制范围很广的三角波产生器(Triangle weve circuit? wide range controls)……………………………………? 229

作为闸路振荡器的IC运算放大器(IC op amp makes? oscillator)…………………………………? 229

高效率的衰弛振荡器(High efficiening relaxation oscillat? ………………………………………………? 229

可以控制幅度大小的CMOS线性斜升波产生器(CMOS line? ramp generator has amplitude control)………………? 229

梯级锯齿波音?生器(Stepped-sawtooth tone generator? 229

正(负)斜率升波产生器(Positive or ns?arive slope generator)……………………………… ? 229

产生线柱频率?波的串接UJT振荡器(Cascade UJT oscillat? generates linear fre?ency sweeps) 229

具有可变任务周期的再循?定时(Recycling timing with variable duty-oycle) 231

PUT供应耗损功率极低能量却很高的脉波(PUT delivers altialow-powet,high-energy pulsea) 232

顺序双极性多谐振荡器(Sequemial bipolar multivibrator) 234

以级数近似法产生的正弦波(Series approximation sine-wave generation) 237

二个闸路组成的石英振荡器(2 getes make quartz oscillator) 239

产生双相位定时?波的单晶体定时器(Monolithic timer generates 2-pluse clock pulses) 240

受电流控制的三角波/方波产生器(Current-Control led 241

triangular square-wave generator) 241

产生脉波列或单一脉波的闸路定时脉波源(Gated clock generates pulse train or single pulse) 243

晶体控制的衰弛振荡器(Crystal-controlled relaxation oscillator) 244

TTL反相器可组成稳定的可尔毕兹振荡器(TTL inverter makes stable colpitts oscillator) 246

以运算放大器组成的简单衰弛振荡器以产生线性斜升波(Simple op amp relaxation oscillator generates linear ramp output) 247

IC计时器不稳定操作的攻进(Astable operation of IC timer can be improved) 249

失真度极低的振荡器(Ultra low distortion oscillalor) 251

可产生任意形式周期波的CMOS电路(CMOS circuits generate arbitrary periodic waveforms) 252

重复率可以连续改变的改良型多谐振荡器(Improved multi with continuously variable rep rate) 254

性能优异的精确振荡器(Precision oscillator is versatile) 255

线性的宽频带电压控制振荡器(A wideband,linear VCO) 257

频率范围高达10?倍的PUT振荡器(PUT oscillator has 4-de cade frequency range) 258

简单的正弦波振荡器(Simple sinewave oscillator) 259

没有定时误差的改良型UJT振荡器(Modified UJT oscillator has no timing error) 260

当输入电压为零振荡频率亦为零的电压控制振荡器(Zero V=zero-frequency VCO) 261

非线性度可调整的斜升波产生器(Ramp generator has adjustable nonlinearity) 263

具有广范围任务周期的脉波产生器(Pulse generator offers wide range of duty cycles) 265

自全式闸控不稳定振荡器(Self-completing gating astable) 267

定时脉波产生器(Clock-pulse generator) 268

低功率的双相定时脉波产生器(Low-power two-plose clock) 270

电压控制的振荡器(Voltage-controlled oscillators) 271

直流偏离电压极低的触发扫描波电路(Triggered sweep futures low dc offset) 272

产生对称交流输出的键控多谐振荡器(Keyed multivibrator produces symmetrical ac output) 273

稳定且失真低的桥式振荡器(Stable low-distortion bridge oscillator) 275

防止栅波出现的60Hz定时器(Gated 60Hz clock avoids glitches) 276

以一个IC做成的广范围脉波产生器(Wide-range pulse generator uses single IC) 277

具有饱和输出的?极耦合不稳定振荡器(Emitter-coupled astable with saturated output) 280

使用晶体来控制简单IC脉波产生器的脉波重复率(Crystal controls rep rate of simple IC pulse generator) 281

以运算放大器组成的延迟脉波产生器(Operational amplifier makes a simple delayed pulses generator) 283

晶体控制的复振器(Crystal controlled multireibrator) 285

与IC逻辑电路交连的可调整方波振荡器(Adjustable rectangular-wave oscillator interfaces with IC logic) 286

提供快速过载保护的电流变压器(Current Transformer Gives Fast Overlood Protection) 291

第四部份 电源供应能力(Power Supply Circuit) 291

以一个电晶体来改进IC稳压器(One Transi stor Improves IC Valtage Regulalor) 292

提供追踪馈电的±15伏调限电源(Simple±15V regulased supply provides tracking) 293

互锁的交流电源(AC power interlock) 294

测量电压不定的感知电路(Under-voltage sensing circuit) 295

利用剩余的IC闸路作为调整器(Spare IC gate serves as regulator) 296

高压的直流对直流转换器(High voltage dc-to-dc converter) 297

可以减少交变调整器损失的电阻(Resistor reduces switching regulator losses) 298

防止电源感测端造成意外损坏的二极体(Diode avoid accidental damage from power supply sensing) 299

用IC定时器作成无变压器的功率转换器(IC timer makes transfor mer less power converter) 300

提供过叠指示的光感隔离器(Opto isolators provide foldover indication) 302

类似SCR的多性能电路(Versatile circuit behaves like SCR) 303

逻辑供应源的保护电路(Logic-supply crowbor) 304

过压量可调整的断路器(Adjustable-overvol tage circuit breaker) 305

利用IC调整器作成的窗牖式检测器(Window detector uses one IC regulator) 306

第五部份 交换技术(Switching Techni ques) 311

使电容型马达逆转的高压双闸晶体(High-voltage triacs reverse capacitor motor) 311

简单的固态零交越开关(Simple zero-crossing solid-state switch) 313

价廉的数位联锁开关(Digital interlocking switch is inexpensive to build) 314

组成触摸开关的单晶体定时器(Monolithic timer makes convenient touch switch) 315

利用双闸晶体作成的闸控电路(Triac gating circuit) 317

利用光感耦合器作成的安置-复置电路(Set-reset latch uses optical couplers) 318

无杂音影响的SCR触发电路(Noise-Rejecting SCR Trigger Circuit) 319

多工的“主指轮开关”(Putting the“thumb”on thumbwheel switch multiplexing) 320

节省电池的遥控指令检测器(Battery-saving remote-command detector) 322

速率快且隔离效果好的600伏交换电路(600 V switching circui?provides good speed and isolation) 323

遥控的排斥OR闸路(Remote-Controlled Exclusive OR Gate) 324

旋转开关互锁电路的改良(An improved rotary-switch interlocking circuit) 325

无反跳的?交换(Make-and-break bounceless switching) 328

廉价的双稳继电器电路(Low-cost bistable relay circuits) 329

有效且简单的零交越开关(Effi cient and simple zero-crossing switch) 330

能够自动关闭的电池节省器(Battery saver has automatic turn-off) 332

驱动步进继电器的低功率定时器(Low-power timer drives stepping relay) 333

无备用电流的双稳开关(Bistable switch with zero stand by drain) 334

固态继电器(Solid-state relay) 336

以CMOS组成一般的?辑测试电路(One CMOS package makes universal logic probe) 341

第六部份 试电路(Test Circuits) 341

于共接线上安置短接闸路的技巧(Technique locates shorted gates on common bus) 342

使用运算放大器作成的简单直流伏特计(Simple DC voltmeter uses single op amp) 343

可以求电晶体之增益?频宽乘积的交合电路(Simple jig determines transistor gain bandwidth product) 344

高增益的交流/直流示波器放大器(High gain ac/dc oscilloscope amplifier) 347

测试三种逻辑状态的逻辑测试电路(Logic probe tests three-state logic circuits) 348

组成简单电容计的555定时器(555 timer makes simple capacilance meter) 349

测试在电路中的电容之测试计(In-circuit capacitor tester) 350

作为测试尖波或准位移置的IC供应电源(IC power supply provides test spikes or level slufts) 351

供给定值电流的偏压供应电路(Bias supply circuit provides constant current) 353

二个CMOS闸路能把计数器变为电容计(2 CMOS gates connect counter into capaci tance meter) 354

测量温度系数的电路(Temperature-coefficient measuring circuit) 355

驱动50Ω负载的FET探测电路(FET probe drives 50Ω load) 357

可以指出所有IC逻辑准位的测试箱(Test box indicates logic levels for entire IC) 358

低速的逻辑探测电路(Low-speed logic probe) 360

短路示警电路(Short-circuit alarm) 361

第七部份 混合篇(Miscellaneous) 365

提供多工输出的新奇时钟电路(Novel clock eircuit provides multiplexed display) 365

60-HZ频率鉴别器(60-HZ frequency discriminator) 367

把包周码转换成具有符号及大小的输出(Convert wrap-around code to sign-plus-magnitude) 368

具有故障保全特性的温度感知器(Fail-safe temperature sensor) 369

相位互锁的旋转马达驱动器(Phase-interlocked gyro motor driver) 371

利用单击IC作成的30秒定时器(Thirty-second timer uses IC one-shot) 372

非常稳定的基准电压源(Super-stable reference-voltage source) 374

可调整的低阻抗齐纳电路(Adjustable,low-impedance zener) 376

具有默带的数位比较器(A digital deadband comparator) 377

光度测量的自动标度电路(Automatic scaling circuit for optical measurements) 379

利用SCR作成的电子组合锁(SCR'S form electronic combination lock) 381

利用二个IC组成的捕脉器(Pulse catcher uses two ICS) 383

脉波准位鉴别器与错误指示器(Pulse-Level Discriminator and Fault Indicator) 384

低通数位滤波器(Low-pass digital filter) 385

能测知气体温度与速度的热电阻电路(Thermistor circuit senses air temperature and velocity) 386

利用DPM作成的自给数位温度计(DPM makes self-contained 388

digital thermometer) 388

利用E-cell来控制电池的充电率(E-cell controls bsttery charging rate) 390

正比炉温控制器(Propontional oven-temperature controller) 391

把TTL/D TL交?FET类比开关的电路(TTL/DTL interface to FET analog switch) 392

自动保护仪表的FET(FET provides automatic meter protection) 394

利用二个TTL闸路表驱动很长的同轴输送线(Two TTL gates drive very long coax lines) 395

可调整电压或电位的400-HZ延迟电路(Voltage or pot-variable 400-HZ delay) 397

具有双重功能的光检示警器(Double duty photo alarm) 398

供给LED的电流脉波产生器(Current-pulse generator for LED'S) 399

利用光电池作成寂静无声的自由钟摆(Photocells allow a free pendulum to operate silently) 401

具有长延迟量的价廉定时器(Low-cost,long delsy timer) 402

二极体与JFET的泄漏测试(Leakage testing of diode and JFETS) 404

多值输出变压器(Universal Transformers) 405

廉价的红外线系统防盗器(Low cost IR system detects intruders) 406

最佳的齐纳去耦电路(Opt imum zener decoupling) 408

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