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5.3.5. Thermistor
Contact Nuvation Energy for support if temperature compensation of the high-current shunt is desired
for your specific application.
Nuvation Energy can be contacted via support@nuvationenergy.com.
5.3.6. Current Shunt
The Current Shunt connector provides a current shunt input for current measurement of the high-
voltage stack. For best results, minimize the cable length used between the shunt and the connector.
Use a twisted pair for the differential shunt voltage sense wires. The differential voltage across the
shunt must never exceed 1V under any circumstance. Choose the resistance value accordingly.
Connect the current shunt to this connector.
Pin
Connection
1
No Connect
2
VSHUNT_REF
3
VSHUNT_LOAD
4
VSHUNT_BAT
An example high-current shunt wiring diagram is shown below:
Document ID: NE-IG-001
Table 32. Current Shunt: Molex MiniFit Jr Connector
Molex 39-01-4041
Manufacturer
Housing
Housing material
Circuits
Crimp terminal
Wire gauge range
Table 33. Current Shunt Connector Pin Assignment
Description
Not Connected
Voltage reference for voltage measurement
Differential voltage input; Load side
Differential voltage input; Battery side
Nuvation Energy High-Voltage BMS - Installation Guide
Molex Incorporated
39-01-4041
Nylon UL94V-0
4
39-00-0181
AWG18-24 stranded
34
Connected to Device
No Connect
Load side of current shunt
Load side of current shunt
Battery side of current shunt
Rev 2.1, 2020-03-13
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