Current measurement circuit
AssigneeSGS-Thomson Microelectronics S.A.
InventorMaurice Le Van Suu
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Abstract
A circuit for the measurement of current in a load includes a non-linear element for transforming a current into a voltage and includes a fuzzy logic processor to process a measurement of the voltage and provide an information element representing the current. The device permits the precise use of semi-conductor or other components for the measurement of current in making a linear approximation of the current-voltage characteristics of the semi-conductors used by using triangular type membership functions. The linear approximation may also be combined with a Gaussian interpolation.
Claims25
A circuit for measuring current in a load, the circuit comprising:
- a non-linear circuit element;
- and a fuzzy logic processor electrically coupled to the non-linear circuit element, the fuzzy logic processor receiving a voltage value from the non-linear circuit element;
- wherein the fuzzy logic processor converts the voltage value to an information element representing the current in the load using membership functions and decision rules that represent a characteristic curve of the non-linear circuit element.
Dependencies are inferred from the claim text.