Generators
Pulse, Function, and Waveform

0 Preface

1 Pulse Generators

Pulse Characteristics 1

Pulse Generators 2

Timing Circuits 4

Period Generators 7  

   Digital Period Generators 10

Counter Resolution 13

Duration and Delay Timers 15

   Digital Duration Generator 17

   Duration > Period Fault Detector 17

PG Comparators 18

Amplitude Processor Circuits 20

   Level Processor 21

   Level-Processing Multipliers 23

Transition Processor 33

Output Amplifier 35

   Output Amplifier Resistance 35

   Amplifier Active Termination Resistance 37

   Amplifier Zo Compensation 41

2 Function Generators

FG Performance Characteristics 46

Op-Amp Integrator TWG 48

Current-Source TWGs 56

Differential TWGs 60

   FG506 Autosymmetric TWG 61

   HP3314A TWG 64

FG506 Sweeping FG 66

   FG506 Specifications 67

   FG506 Voltage to Current Converter 69

   VCF, Symmetry, and Gating 71

Logarithmic Frequency Sweep 72

Frequency Control 74

Sweep Control Logic 77

TWG Dynamics 79

Capacitance Multipliers 85

Piecewise-Linear Sine Shapers 87

   Breakpoint Algorithm 89

Sine Converters Based on tanh(x) 95

Translinear Sine Converters 100

FG506 Output Amplifier 106

FG506 Power Supply 108

Amplitude, Frequency, Symmetry, and Gating Control 111

FG Functions 112

3 Waveform Generators

Tabular Waveform Generation 114

Incremental Waveform Generation 117

Digital Integration Approximations 119

The Digital Sequence z-Domain 122

DI Frequency Response 125

TRI Dynamics and w-Domain 130

DI Amplitude Stability 132

Incremental Waveform Simulation 134

Digital Integrators as Logic Circuits 140

WGs as Instruments 144

4 Tektronix PG508

Trigger and Gate Processing 148

Period Generator 154

Delay and Duration Generators 157

Transition and Level Processors 160

Output Amplifier 164

5 PG201 Power Pulser

Pulse Amplifier 168

   Mode Switching 168

   Feedback-Path Sense Amplifiers 170

   Forward-Path Amplifier 171

   Output Resistance 174

   Amplifier Voltage Margin and Supply Voltage 175

   Load Current Limitations 175

   Pulse Amplifier Voltage Mode 176

   Pulse Amplifier Current Mode 177

   Overcurrent Protection 178

Pulse Amplifier Dynamics 179

   Feedback Amplifiers 179

   Input Stage Error Amplifier, G1 180

   Forward-Path Second Stage, G2 184

   Cascode Stage Zero 185

   PNP CB Stage 186

   Forward-Path Output Stage, G3 187

   Load Cable Dynamics 191

   Cable Configuration and Capacitance 193

   G3 Gain 195

   Cable Compensation 195

   Pulse Amplifier Loop Response 197

Charger and Ohmmeter 206

   Ohmmeter Current Source 206

   Ohmmeter Amplifier 215

   Ground Fault Resistance 217

Charger 218

   Wilson Current Mirror 221

Dual Isolation Amplifier 222

   LOC LED Driver 225

   Input Offset and AZ Correction Range 226

   Autozero Circuit 228

   Photo-Diode Amplifiers (PDAs) 231

   Isoamp Transfer Function 233

   PDA Dynamics 235

   GLED Dynamics 240

   GI Loop Dynamics 242

   GI Closed-Loop Response 244

Power Supply 250

   Ripple Current Windings 253

   Transfer Power 254

   Ripple Current 255  

   Magnetics Design of L1, L2 256

   Design of Transductor X2 270

   Ripple-Current Steering 277

   Power Supply Control Circuit 279

   Parasitic Resonance 282

6 PG202, PG210, PG220

Timing Processor 285

Amplitude Processor 288

Output Amplifier 290

   Amplifier Static and Quasistatic Design 291

   Amplifier Dynamic Design 298

Output Impedance 300

Output Attenuator 302

Power Supply 304

PG210 Switched Output Levels 305

PG220 and DDS Timing 306

7 FG201, FG202, FG203

FG201 TWG 307

   XR2206 FG with Apple II Interface 310

   Discrete-TWG FG with Apple II Interface 319

FG202 329

FG203 334

 344 total pages

 

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