Method and apparatus for measuring current, especially useful in multi-ampere systems

摘要: The disclosed method and apparatus make three connections to a pair of conductors: two at spaced-apart points on one conductor the third other conductor. Using power available in conductors, differential amplifier produces an output signal representative current flow through first by sensing voltage difference between second Temperature-induced changes resistance are compensated thermistor. is used drive or more displays amperes, ampere-hours watt-hours.