Agilent Technologies Agilent 33500 Series, User Manual

Page: 54 / 278

53
Chapter 2 Front-Panel Menu Operation
To Output a PWM Waveform
4
2
To Output a PWM Waveform
You can configure the waveform generator to output a pulse width
modulated (PWM) waveform. The Agilent 33500 Series provides PWM
for pulse carrier waveforms. In PWM, the pulse width or duty cycle of the
carrier waveform is varied according to the modulating waveform. You
can specify either a pulse width and width deviation, or a pulse duty
cycle and duty cycle deviation, the deviation to be controlled by the
modulating waveform.
For this example, you will specify a pulse width and pulse width
deviation for a 1 kHz pulse waveform with a 5Hz sine wave modulating
waveform.
1 Select the carrier waveform parameters.
Press and then press
Pulse
. Use the
Frequency
,
Amplitude
,
Offset
,
Pulse Width
and
Edge Times
softkeys to configure the carrier
waveform. For this example, select a 1 kHz pulse waveform with an
amplitude of 1 Vpp, zero offset, a pulse width of 100
 s, and an edge time
of 50 ns (both leading and trailing).