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Remote Interface Reference
PWM Commands
Use the APPLy command or the equivalent FUNC, FREQ, VOLT, and VOLT:OFFS
NOTE
commands to configure the carrier waveform.
PWM:SOURce {INTernal|EXTernal}
PWM:SOURce?
Select the source of the modulating signal. The function generator will accept an
internal or external modulation source. The default is INT. The :SOUR? query
returns "INT" or "EXT".
– If you select the External source, the carrier waveform is modulated with an
PWM:INTernal
Select the shape of the modulating waveform. Used only when the Internal
modulation source is selected (PWM:SOUR INT command).
(The carrier must be a pulse waveform for PWM.) The default is SIN. The :FUNC?
query returns "SIN", "SQU", "RAMP", "NRAM", "TRI", "NOIS", or "USER".
– Select "SQU" for a square waveform with a 50% duty cycle.
– Select "RAMP" for a ramp waveform with 100% symmetry.
– Select "TRI" for a ramp waveform with 50% symmetry.
– Select "NRAM" (negative ramp) for a ramp waveform
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external waveform. The pulse width or pulse duty cycle deviation is controlled
by the ±5V signal level present on the rear-panel Modulation In connector. For
example, if you have set the pulse width deviation to 50 μs using the PWM:DEV
command, then a +5V signal level corresponds to a 50 μs width increase.
Lower external signal levels produce less deviation.
:FUNCtion {SINusoid|SQUare|RAMP|NRAMp|TRIangle|NOISe|USER}
:FUNCtion?
with 0% symmetry.
Keysight 33210A User's Guide
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