Dewetron DEWE3-PA8, Техническое справочное руководство

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36
MAIN SYSTEM
146
TRION3-1810M-POWER-4
Bessel/Butterworth fi lter characteristics for Power Analysis
The TRION family is equipped with DSP lowpass fi lters from 2
nd
to 8
th
order in Bessel or Butterworth
confi guration. The diff erence between these two fi lter types can be seen in the following fi gures.
Figure 1: Step response of fi lter with 1000 Hz cutoff frequency and 8th order.
Figure 2: Frequency response of fi lter with 1000 Hz cutoff frequency and 8th order
Bessel Bu� erworth
Magnitude accuracy
e.g. RMS-accuracy
Step response reproducti on
e.g. PWM signal observati on
Bessel/Butterworth fi lter characteristics for Power Analysis
The TRION family is equipped with DSP lowpass fi lters from 2
nd
to 8
th
order in Bessel or Butterworth
confi guration. The diff erence between these two fi lter types can be seen in the following fi gures.
Figure 1: Step response of fi lter with 1000 Hz cutoff frequency and 8th order.
Figure 2: Frequency response of fi lter with 1000 Hz cutoff frequency and 8th order
Bessel Bu� erworth
Magnitude accuracy
e.g. RMS-accuracy
Step response reproducti on
e.g. PWM signal observati on