High impedance current source
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United States of America Patent
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-
Jul 6, 1993
Issued Date -
N/A
app pub date -
Dec 24, 1991
filing date -
Jan 4, 1991
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A high impedance current source includes a voltage to current transducer having positive and negative inputs with an output current passed through a monitor resistor. Matched resistances are connected from both sides of the monitor resistor back to the positive and negative inputs to the transducer. Matched resistances are also connected between the positive and negative inputs and a common base, and the control voltage is applied across the inputs through matched resistances. The circuit is preferably utilized to provide current to a circuit utilized in differential calorimetry.
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