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ZMPT101B(ZMPT107) voltage transformer operating guide
1、Wiring diagram
FigureⅠ
Figure Ⅱ
2、Determination of maximum output rms voltage
Umax：
Umax is decided by the AD peak voltage in the
sampling loop in principle.
Peakvoltag e
As for Bipolar AD，Umax= 2
peak voltage
As for unipolar AD，Umax= 2 2
for example: As for ± 5V AD，the maximum rms voltage of
the transformer: Umax = 5V / 2 =3.53V As for 0~3.3V AD，the maximum rms voltage of
the transformer:V max = 3.3V / 2 2 =1.16V
3、Determination of input current-limiting resistor R′
Current-limiting resistor R′= V
I
V：Rated input voltage
I ： Rated operating current （ when Coil
resistance is compared with current-limiting
resistor R′ , it can be ignored.）
ZMPT101B/ZMPT107 usually working at rated
current:1~2mA.
ZMPT107 Datasheet
