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A shunt resistor is a low resistance precision resistor that is typically connected in parallel in circuits for shunt current measurement. It has the ability to expand the range of ammeters and provide sampling functionality. The core principle is to adjust the main circuit current by diverting partial current. The smaller the resistance, the more significant the diversion effect. At the same time, the current value can be calculated by measuring the potential difference through series application
Due to its special function, shunt resistors should pay special attention to the selection of resistance accuracy when used in precision electronic products such as instruments, meters, and measuring equipment. If the accuracy is not sufficient...
The manganese copper shunt uses three leads to separate the power supply circuit from the sampling circuit, avoid voltage drop caused by the power supply current on the sampling lead, and ensure the accuracy of current measurement.
Vehicle grade precision manganese copper shunt is a high-precision current detection component designed specifically for automotive electronic systems. It has low temperature drift, high stability, and high power characteristics, and is suitable for scenarios such as new energy vehicles and BMS battery management systems.
The core principle of manganese copper shunt stealing electricity is to artificially change its resistance characteristics (such as adjusting the welding position or short circuiting), so that the voltage drop signal generated by the actual current is lower than the true value, resulting in the current data read by the metering chip being lower, thereby reducing electricity metering. Common methods include changing the welding points of the shunt or connecting shunt resistors in parallel to disrupt their normal connection with the current coil.
Surface mount bus bars are mainly used in new energy vehicle battery packs, playing a role in current transmission, distribution, and connection, ensuring efficient and stable transmission of electrical energy within the battery module.
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