multicomp MP7505 Series - PWM (Pulse Width Modulation)

MP7505 Series User Manual
31
(4) Select modulating wave source:
Press the Source softkey to select the modulating wave source.
If you select External, use the Mod/FSK/Trig connector at the rear panel to
input the external modulating signal, then skip ahead to step (7).
If you select Internal, continue with the following steps.
(5) Select modulating wave shape:
Press the Shape softkey, then press the Sine, Square, Ramp, Noise, or Arb
softkey to select the modulating wave.
(6) Set modulating wave frequency:
Press the PM Frequency softkey to set the modulating wave frequency. The
range is 2 mHz – 1 MHz (for internal source only).
(7) Set phase deviation:
Phase deviation is the deviation of the modulating wave phase relative to the
carrier wave phase. Press the Deviation softkey to set the PM phase deviation.
The range of phase deviation is from 0° to 180°.
PWM (Pulse Width Modulation)
The modulated waveform consists of the carrier wave and the modulating wave. For
PWM, the pulse width of the carrier Pulse wave varies with the instantaneous
voltage of the modulating wave. The PWM user interface is shown below.
Figure 5-15: PWM user interface