Shunt (electrical)
（重定向自Shunt resistance）
![50 A shunt resistor](/Images/godic/202502/11/Shuntresistor50A1506.jpg")
![Low-side insertion can eliminate common mode voltage, but not without drawbacks.](/Images/godic/202502/11/Low_side_current_shunt1507.gif")
![High-side insertion resolves low-side drawbacks, but guarantees common mode voltage.](/Images/godic/202502/11/High_side_current_shunt_diagram.svg1507.png")
![Isolated amplifiers resolve all the difficulties and limitations with high- or low-side current shunt measurements.](/Images/godic/202502/11/Isolation_amp_current_shunt1507.gif")
In electronics, a shunt is a device which allows electric current to pass around another point in the circuit by creating a low resistance path. The term is also widely used in photovoltaics to describe an unwanted short circuit between the front and back surface contacts of a solar cell, usually caused by wafer damage. The origin of the term is in the verb 'to shunt' meaning to turn away or follow a different path.