Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
May 18, 2010
Patent Application Number
12080511
Date Filed
April 3, 2008
Patent Primary Examiner
Patent abstract
A current sensor system that uses a sensor resistor to sense current flow and in which the level of voltage drop across that resistor is used to control the current flow through another resistor, the input resistor, into a current integrator. The ratio of input resistor to sensor resistor resistance values determines the ratio of sense current to integrator input current level. By matching the temperature coefficients of the resistors the effects of temperature are reduced. The integrator output provides either directly or indirectly a voltage level, frequency, or duty cycle output signal to indicate the sensor resistor current level.
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