ETAS
Technical Data
ES930.1
-
User Guide
101
13.9.8.2 Current Input (CI)
NOTE
It must be observed that the interconnection with a Full-bridge (H-bridge) is
only possible for the permanently assigned Half-bridge channel groups (see
chapter 10.6.1 on
64).
NOTE
Observe the notes about Switch-on behavior of Half-bridges in chapter 10.5.2
on
Number of channels
6
Function
Current measurement with shunt in
output path of half-bridge switch
Measuring range
-5
A to 5
A (clipping)
Measuring accuracy
±(50
mA + |I
meas
|
*
0.5%)
Measuring accuracy (drift/tempera
-
ture)
±(0.5
mA + |I
meas
|
*
300
ppm)/K
Measuring accuracy over output volt
-
age
±(2
mA/V
*
|U
out
-
12
V|)
Sampling rate, configurable per mod
-
ule
0.5 samples/s bis 10
ksamples/s,
additionally events
Anti-aliasing filter (hardware filter)
Low-pass 1st order,
3-dB limit frequency 15
kHz
Digital filter (software), configurable
per module
Configuration 1:
Off
Configuration 2:
CIC filter (sinc filter), automatic filter
setting with selection of sampling rate
Averaging time
s
= 100
s to 2
s,
Averaging time equal to sampling rate
Configuration 3:
IIR filter 2nd order (Bessel) with
adjustable limit frequency (0.4
Hz to
4
kHz)
NOTE
The software configurable filter of a measuring channel (analog inputs [AI]
and current measurement channels [PS] of the Power Stages) is automati
-
cally deactivated when the measurement channel is operated in the event
mode.
