197
Chapter 4 Remote Interface Reference
Pulse Width Modulation (PWM) Commands
4
Pulse Width Modulation (PWM) Commands
See also “Pulse Width Modulation” on page 93 in chapter 3.
PWM Overview
The following is an overview of the steps required to generate a
PWM waveform. The PWM commands are listed on the next page.
1 Configure the carrier (pulse) waveform.
Use the
APPLy
command or the equivalent
FUNC
,
FREQ
,
VOLT
, and
VOLT:OFFS
commands to select the function, frequency, amplitude, and
offset of the pulse waveform. PWM is supported only for pulse.
2 Select the modulation source.
The function generator will accept an internal or external modulation
source. Select the modulation source using the
PWM:SOUR
command.
For an external source, you can skip steps 3 and 4 below.
3 Select the shape of the modulating waveform.
You can modulate the carrier with a sine, square, ramp, noise, or
arbitrary waveform (pulse and dc are not allowed). Use the
PWM:INT:FUNC
command to select the modulating waveshape.
4 Set the modulating frequency.
Set the modulating frequency to any value from 2 mHz to 20 kHz using
the
PWM:INT:FREQ
command.
5 Set the pulse width or pulse duty cycle deviation.
Set the
Width Deviation
to a value from 0 to the current
Pulse Width
or
Period - Pulse Width
, whichever is smaller, using the
PWM:DEV
command. Or, set the
Duty Cycle Deviation
to a value from 0 to the
current
Duty Cycle
or
100 - Duty Cycle
, whichever is smaller, using
the
PWM:DEV:DCYC
command.
6 Enable PWM modulation.
After you have set up the other modulation parameters, use the
PWM:STAT ON
command to enable PWM.
33210A users guide.book Page 197 Wednesday, July 16, 2008 11:16 AM
Summary of Contents for 33210A
Page 1: ...Keysight 33210A 10 MHz Function Arbitrary Waveform Generator User s Guide ...
Page 2: ......
Page 3: ......
Page 14: ...12 Contents Contents 33210A users guide book Page 12 Wednesday July 16 2008 11 16 AM ...
Page 15: ...1 1 Quick Start 33210A users guide book Page 13 Wednesday July 16 2008 11 16 AM ...
Page 53: ...3 3 Features and Functions 33210A users guide book Page 51 Wednesday July 16 2008 11 16 AM ...
Page 273: ...5 5 Error Messages 33210A users guide book Page 271 Wednesday July 16 2008 11 16 AM ...
Page 301: ...6 6 Application Programs 33210A users guide book Page 299 Wednesday July 16 2008 11 16 AM ...
Page 311: ...7 7 Tutorial 33210A users guide book Page 309 Wednesday July 16 2008 11 16 AM ...
Page 335: ...8 8 Specifications 33210A users guide book Page 333 Wednesday July 16 2008 11 16 AM ...