NF wf1966, Instruction Manual

Page: 117 / 198

4.3 Modulation
WF1966
4-55
② Press the
ENTER
key, then use the and keys to produce the following display
(SIN flashes).
S I N
P W M ： T Y P E D E V I A T I O N F R E Q F U N C T I O N
③ After selecting, press the
EXIT
key to release the setting mode.
The above completes pulse width modulation setting.
Other operations:
• When the oscillation mode is changed to modulation (MODU), modulation occurs at the setting at that
time point.
• To stop modulation : Press the
STOP
key. Resume modulation by pressing the
START
key.
• Duty setting vs. maximum or minimum duties
:
Max. duty = Duty s (pulse width deviation%
÷
2)
Min. duty = Duty setting
−
(pulse width deviation%
÷
2)
• During modulation, multiple pulses may be output in one cycle, as shown below.
• During modulation, if the oscillation mode of the other channel is changed, modulation stops.
• To start or stop modulation of both channels simultaneously on a manual operation or via
remote control (GPIB or USB), set both channels to modulation mode and set OPER-COMMON to
on.
O F F O N
P W M
：
3
F U N C T I O N
O P E R
−
C O M M O N
• Setting items at pulse width modulation (MODU menu)
TYPE: PWM
DEVIATION (pulse width deviation) [%]
FREQ (modulation frequency) [Hz]
FUNCTION (modulation waveform) [SIN,
, , , ]
OPER-COMMON (operation in both channels) [OFF, ON]