64
6.1.4. Measurement of the voltage drop on the circuit section in the differential
mode (up to 16- channels)
R2
L-502
AGND
X1 (X2 -X16)
Y1 (Y2 -Y16)
R3
R1
This connection allows you to measure the voltage
drop across resistor R2.
For a single-channel mode
, R1,
R2, R3 can also be impedances of a capacitive or inductive
nature, but with the condition that the circuits X and Y
used are not broken by the direct current of the circuit.
In
multichannel mode
, the equivalent impedance referred to
the ADC input must be active. It is necessary that R2
should not be more than 50 ohms if the switching
frequency is maximal.
See limitations in section 4.4, p. 44!
6.1.5. Differential connection of the transformer (throttle) winding with midpoint and
offset potential with respect to AGND
R1
L-502
AGND
X1 (X2 -X16)
Y1 (Y2 -Y16)
L
U
см
Limitations:
|Ucm| ≤ 1 V
Only for the voltage subbands L-502:
±2 V, ±1 V, ±0.5 V, ±0.2 V
6.1.6. Example of mixed connection of voltage sources "with common ground" and
differential.
GND
L-502
GND32
X (Y )
i i
GND1
GND3
Yk
X k
X (Y )
j j
Yr
X r
GND2
Дифф.
ИН
Diff. VS
