N4L PPA55 Series User Manual

PPA55xx Quick User Guide
Page 16
Noise Filter
In signal processing, a “FILTER” is a device or process
that removes from a signal some unwanted
component or feature. The noise filter is a digitally
selectable in line filter which will alter the bandwidth
of the processed signal
Off
Select to switch this mode off
On
Select to switch this mode on
The following screenshots are taken from the “Scope” display with the PPA set in
PWM application mode
Noise filter set to OFF the scope display shows a PWM switching Voltage
waveform with noise distortion
Noise filter activated and bandwidth set to 1KHz the Voltage waveform is now
displayed and is smoother and more sinusoidal

N4L PPA55 Series Specifications

General

Brand	N4L
Model	PPA55 Series
Category	Measuring Instruments
Language	English