Set the duty cycle deviation in percent (percent of period). This value
represents the peak variation in duty cycle from the duty cycle of the
underlying pulse waveform. For example, if duty cycle is 10% and duty cycle
deviation is 5%, the duty cycle of the modulated waveform will vary from 5%
to 15%. The default is 1 percent. MIN is approximately 0%. MAX is
approximately 100% (limited by the period, minimum pulse width, and edge
time). The :PWM[1|2]:DEV:DCYC? query returns the duty cycle
deviation in percent.
The duty cycle deviation cannot exceed the current pulse duty cycle.
The duty cycle deviation is also limited by the minimum pulse width.
If you select the External modulating source (PWM[1|2]:SOUR EXT
command), the deviation is controlled by the ±2.5V/±5V signal level present
on the rear-panel Modulation In connector. For example, if you have set the
duty cycle deviation to 5 percent, a +2.5V/+5V signal level corresponds to a
5 percent deviation, that is an additional 5% of period added to the pulse
duty cycle. Lower external signal levels produce less deviation, and negative
signal levels reduce the duty cycle.
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