Resistance calibrating circuit
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United States of America Patent
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Issued Date -
May 8, 2014
app pub date -
Oct 29, 2013
filing date -
Nov 6, 2012
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A resistance calibrating circuit includes an external power source; a reference unit, a current calibrating circuit and a voltage calibrating unit which are respectively connected to the external power source; an external reference voltage which is respectively connected to the reference unit and the voltage calibrating unit; an to-be-calibrated voltage-controlled resistor which is respectively connected to the current calibrating unit and the voltage calibrating unit, wherein the current calibrating unit is further connected to the reference unit. The resistance calibrating circuit is capable of automatically adjusting a resistance of the to-be-calibrated voltage-controlled resistor highly precisely and highly efficiently.
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