Pin configurable smart current sensor
AssigneeTe Connectivity Corporation
InventorRobert Steve Felisilda Delacruz
Life of this patent
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Abstract
A method of regulating the operation of an electrical system, the electrical system including, a contactor unit including a contactor and a conductive element, sensing circuitry including at least two Hall Effect sensors, and a control unit including at least a trip circuit, an I2t unit, and a one coil current monitor. The method includes receiving, by the control unit, one or more first measurements, from the sensing circuitry and determining, by the control unit, a current corresponding to a current in the at least one conductive element based on the one or more first measurements. The control unit also determines an instantaneous power generated by a load based on the current and regulates the operation of the contactor unit based on the power generated by the load.
Claims9
A method of regulating the operation of an electrical system, the electrical system including, at least one contactor unit including a contactor and a conductive element, the method comprising:
- receiving, by the control unit, a first measurements of a current flow in the conductive element from a first Hall Effect circuit and a second measurement of the current flow in the conductive element from a second Hall Effect circuit;
- determining, by a control unit, a current corresponding to the current in the conductive element based on the first measurement and the second measurement, the control unit including a trip circuit, an I2t unit, and a coil current monitor;
- squaring, by a multiplier circuit of the control unit, an instantaneous power generated by a load based on the current;
- summing, by an integrator circuit of the control unit, a signal from the multiplier circuit with respect to time;
- regulating, by a trip circuit and a reset circuit of the control unit, the operation of the at least one contactor unit based on the power generated by the load, wherein upon a level of the load exceeding a predetermined load threshold, the trip circuit will disconnect the load.
Dependencies are inferred from the claim text.