CURRENT MEASURING TECHNIQUES FOR COMPENSATING AN EXTERNAL DRIFT

摘要

Various current measuring techniques are described which can compensate for a drift in the shunt resistance value. Determining a resistance value of a shunt resistor, e.g. For example, coupled to a battery terminal, synchronously introducing a known signal with the chopping phases of a dual-system chopping scheme may include chopping the known signal out into the main signal path and explicitly extracting the known signal in a parallel additional signal de-routing path.