The relatively simple modification to the first-generation Insight involves a shunt resistor, which lets the computer sense the amount of current being drawn from the hybrid battery and delivered ...

If it’s DC, the easiest way is to use a shunt resistor and measure the voltage ... but the pictures of the PCB should be enough for someone wanting to build their own version of this current ...

However, it also places unique demands and stresses on the active circuitry that captures the small voltage across the shunt resistor—usually on the order of 100 mV—in the presence of high ...