Gw-instek AFG-3000 Series User Manual Page 91
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MODULATION
91
Selecting Pulse Width Modulation
When selecting PWM, the current setting of the carrier frequency,
the amplitude modulation frequency, output, and offset voltage
must be considered.
Panel Operation
1. Press the MOD key.
2. Press F2 (Square).
3. Press the MOD key.
4. Press F4 (PWM).
PWM Carrier Shape
PWM uses a square wave as the carrier shape. Other wave shapes
cannot be used with PWM. If a carrier shape other than square is
used with PWM, an error message will appear.
- Arbitrary Function Generator 1
- Table of Contents 3
- TABLE OF CONTENTS 5
- SAFETY INSTRUCTIONS 6
- Safety Guidelines 7
- GETTING STARTED 11
- Panel Overview 13
- Rear Panel 16
- QUICK REFERENCE 21
- How to use the Help Menu 24
- Selecting a Waveform 26
- Sine Wave 27
- Modulation 28
- FSK Modulation 30
- PWM Modulation 31
- ARB – Add Built-In Waveform 35
- ARB - Add Point 36
- ARB - Add Line 36
- ARB – Output Section 37
- ARB – Output N Cycle 37
- ARB – Output Infinite Cycles 38
- Utility Menu 39
- Interface GPIB 40
- Interface RS232 41
- Interface USB 41
- Menu Tree 42
- Waveform 43
- ARB-Display 43
- ARB-Edit 44
- ARB-Built in 45
- ARB- Built in- More 46
- ARB-Save 47
- ARB-Load 47
- ARB-Output 48
- QUICK REFERENCE 49
- Sweep - More 50
- Burst – N Cycle 51
- Burst - Gate 51
- UTIL - Interface 52
- Default Settings 53
- OPERATION 55
- Select a Waveform 56
- Setting a Square Wave 57
- Triangle Wave 58
- Setting the Pulse Width 59
- Setting a Ramp 60
- Noise Wave 61
- Setting the Frequency 61
- Setting the Amplitude 63
- Setting the DC Offset 64
- MODULATION 65
- Amplitude Modulation (AM) 67
- Selecting AM Modulation 68
- AM Carrier Shape 68
- Carrier Frequency 69
- Modulating Wave Shape 70
- AM Frequency 71
- Modulation Depth 72
- Frequency Modulation (FM) 75
- FM Carrier Shape 76
- FM Carrier Frequency 77
- FM Wave Shape 78
- Frequency Deviation 80
- Selecting FSK Modulation 84
- FSK Carrier Shape 84
- FSK Carrier Frequency 85
- FSK Hop Frequency 86
- FSK Rate 87
- FSK Source 88
- Pulse Width Modulation 90
- PWM Carrier Shape 91
- PWM Carrier Frequency 92
- PWM Modulating Wave Shape 92
- Modulation Duty Cycle 94
- PWM Source 95
- Frequency Sweep 97
- Selecting Sweep Mode 98
- Center Frequency and Span 100
- Sweep Mode 102
- Sweep Time 103
- Marker Frequency 104
- Sweep Trigger Source 105
- Trigger Output 106
- Burst Mode 108
- Burst Modes 109
- Selecting Burst Mode 109
- Burst Frequency 110
- Burst Cycle/Burst Count 111
- Infinite Burst Count 112
- Burst Period 113
- Burst Phase 115
- Burst Trigger Source 116
- Burst Delay 118
- Burst Trigger Output 119
- SECONDARY SYSTEM 121
- Save and Recall 122
- Modulation type 122
- GPIB Interface 125
- RS232 Interface 126
- RS232 Parity/Bit Settings 127
- USB Interface 128
- System and Settings 129
- Setting the output impedance 131
- Language Selection 132
- Setting the Sound Beep 133
- Screen Capture 134
- DSO Link 135
- ARBITRARY WAVEFORMS 137
- Inserting Built-In Waveforms 138
- Creating a Square Waveform 139
- Creating a Ramp Waveform 141
- Creating a Sinc Waveform 142
- Creating a DC Waveform 147
- Creating a Pulse Waveform 148
- Page Navigation (Back Page) 155
- Page Navigation (Next Page) 156
- Display 157
- Copy a Waveform 161
- Clear the Waveform 163
- ARB Protection 165
- Output an Arbitrary Waveform 168
- Output Markers 172
- New Folder: 176
- Load a Waveform from USB 180
- REMOTE INTERFACE 182
- Configure USB interface 183
- 1 2 3 4 5 184
- Configure GPIB interface 185
- Command Syntax 188
- NRf+ type 191
- SOURce[1]:OUTPut? 192
- Command List 193
- REMOTE INTERFACE 195
- System Commands 196
- SYSTem:VERSion? 197
- SYSTem:LANGuage 199
- Status Register Commands 200
- SYSTem:INTerface 203
- SYSTem:LOCal 203
- SYSTem:REMote 203
- Apply Commands 204
- Output Frequency 204
- 205
- SOURce[1]:APPLy:SINusoid 206
- SOURce[1]:APPLy:SQUare 206
- SOURce[1]:APPLy:RAMP 207
- SOURce[1]:APPLy:PULSe 207
- SOURce[1]:APPLy:NOISe 208
- SOURce[1]:APPLy:TRIangle 208
- SOURce[1]:APPLy:DC 209
- SOURce[1]:APPLy:USER 209
- 0~5V (50Ω) 210
- Example SOUR1:APPL? 210
- Output Commands 211
- SOURce[1]:FREQuency 212
- SOURce[1]:DCOffset 215
- {MINimum 216
- 3 volts 216
- SOURce[1]:RAMP:SYMMetry 217
- OUTPut:LOAD 218
- SOURce[1]:VOLTage:UNIT 219
- Pulse Configuration Commands 221
- SOURce[1]:PULSe:WIDTh 222
- AM Overview 223
- SOURce[1]:AM:STATe 224
- SOURce[1]:AM:SOURce 224
- SOURce[1]:AM:DEPTh 226
- Example SOUR1:AM:DEPT? 227
- +1.0000E+02 227
- FM Overview 228
- SOURce[1]:FM:SOURce 229
- SOURce[1]:FM:STATe 229
- SOURce[1]:FM:DEViation 231
- FSK Overview 233
- SOURce[1]:FSKey:STATe 233
- SOURce[1]:FSKey:SOURce 234
- SOURce[1]:FSKey:FREQuency 234
- PWM Overview 236
- SOURce[1]:PWM:STATe 237
- SOURce[1]:PWM:SOURce 237
- SOURce[1]:PWM:DUTY 239
- Frequency Sweep Commands 241
- SOURce[1]:SWEep:STATe 242
- SOURce[1]:FREQuency:STARt 243
- SOURce[1]:FREQuency:STOP 243
- SOURce[1]:FREQuency:CENTer 244
- SOURce[1]:FREQuency:SPAN 245
- SOURce[1]:SWEep:SPACing 245
- SOURce[1]:SWEep:TIME 246
- SOURce[1]:SWEep:SOURce 247
- OUTPut[1]:TRIGger:SLOPe 247
- OUTPut[1]:TRIGger 248
- SOURce[1]:MARKer:FREQuency 249
- SOURce[1]:MARKer 250
- Burst Mode Commands 251
- SOURce[1]:BURSt:STATe 253
- SOURce[1]:BURSt:MODE 253
- SOURce[1]:BURSt:NCYCles 254
- SOURce[1]:BURSt:PHASe 256
- OUTPut:TRIGger 261
- Arbitrary Waveform Commands 262
- Alternatively, the 262
- SOURce[1]:FUNCtion USER 263
- DATA:DAC 263
- SOURce[1]:ARB:EDIT:COPY 264
- SOURce[1]:ARB:EDIT:DELete 264
- SOURce[1]:ARB:EDIT:POINt 265
- SOURce[1]:ARB:EDIT:LINE 266
- SOURce[1]:ARB:EDIT:PROTect 266
- SOURce[1]:ARB:EDIT:UNProtect 267
- SOURce[1]:ARB:BUILt:SINusoid 267
- SOURce[1]:ARB:BUILt:SQUare 267
- SOURce[1]:ARB:BUILt:PULSe 268
- SOURce[1]:ARB:BUILt:RAMP 269
- SOURce[1]:ARB:BUILt:SINC 269
- SOURce[1]:ARB:BUILt:EXPRise 270
- SOURce[1]:ARB:BUILt:EXPFail 270
- SOURce[1]:ARB:BUILt:DC 271
- SOURce[1]:ARB:NCYCles 271
- SOURce[1]:ARB:OUTPut:MARKer 272
- SOURce[1]:ARB:OUTPut 272
- Save and Recall Commands 273
- MEMory:STATe:DELete ALL 274
- Error Messages 275
- Execution Errors 277
- ≤ max amplitude – Vpp/2 282
- Query Errors 287
- Arbitrary Waveform Errors 287
- SCPI Status Registers 289
- AFG-3000 Status System 290
- Questionable Status Register 291
- The Status Byte Register 293
- Output Queue 294
- Error Queue 294
- APPENDIX 295
- APPENDIX 297
- EC Declaration of Conformity 302
- INDEX 303
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