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专利名称：Signal conditioning circuit for resistive
sensors
发明人：Rodney T. Burt,Thomas L. Botker,John M.
Brown
申请号：US10211794申请日：20020802
公开号：US20020190734A1公开日：20021219
专利附图：
摘要：A circuit is provided that can provide, in a single package, a means to monitor asensing element which uses a variable resistor. The circuit (also known as a signal
conditioning circuit) may contain resistor input terminals to which a reference set resistorand a resistive sensor can be attached. A reference voltage signal can be applied to bothterminals. There are also means for sensing the resulting current flowing through boththe set resistor and the resistive sensor. The difference of the currents flowing througheach element can then be monitored as being indicative of the difference in resistancebetween the set resistor and the resistive sensor. The current difference signal can beused to generate a voltage difference signal indicative of the difference in resistancebetween the set resistor and the resistive sensor. The signal conditioning circuit may beused to adjust the temperature of various devices.
申请人：TEXAS INSTRUMENTS INCORPORATED
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