11
SETTING THE PULSE WAVEFORM
•
The duty cycle of square wave represents the amount of time from 50% threshold
of rising edge to 50% threshold of next falling edge per cycle (on the assumption
that the waveform is not inverted).
•
You can configure the generator to output a pulse waveform with a variable pulse
width and edge time.
•
Once powered on, the duty cycle of pulse waveform is 50% and the rising/falling
edge time is 1µs by default.
•
To set the period to 2ms, the amplitude to 1.5Vpp, DC offset to 0V, duty cycle
to 25%, rising edge time to 200µs and falling edge time to 200µs for the pulse
waveform, follow the steps below:
•
Press
Menu→Wave→Type→Pulse→Params
button or softkey (if the Type label
is not highlighted, press the
Type
softkey again to select), then press
Freq
softkey
to switch from Frequency to Period.
•
Then enter the period value and select the desired unit.
•
To enter duty cycle value, press the softkey that corresponds to 25% on the bottom
of the screen to directly enter the number, or
you can also enter the number “25” and press
%
to complete input.
•
To set the falling edge time, press the
Params
softkey again or turn the multipurpose knob
clockwise to access the next parameter page
and then press the
TailEdge
softkey and enter
the desired value and select the desired unit.
Note: You can also use the multipurpose knob
and direction buttons together to modify the parameters.
SETTING DC VOLTS
The DC waveform voltage varies with the current DC offset. Modifying DC offset will
change the default value of DC voltage (DC offset).
Once powered on, the DC voltage defaults at 0V.
To set DC voltage to 3V, follow the below steps:
•
Press
Menu→Wave→Type→DC
. When you
change
,
DC Volts (DC offset) is used if the
current DC voltage (DC offset) is valid for the
new application.
•
Enter the number “3” using the numeric
keypad.
Select the desired unit
•
Press the softkey that corresponds with the desired unit.
•
Once the unit is selected, the Generator outputs the waveform with the displayed
DC offset.
•
In this example, press the
V
softkey.
Note: You can also use the multipurpose knob and direction buttons together to
modify DC offset.
