LINEARdrive 720D Programmable Constant-Voltage DMX/RDM & DALI LED Driver - eldoled

[Hot Item] AC Constant Current Source

Design a Simple Constant Current Sink Circuit using Op-Amp

A constant current source is shown below. Use the g̈olden rulesöf op amps-the voltage difference between the two inputs is zero and no current flows into the inputs-to explain why the given values R1, R2 and R3 will result in 01.mA of current through the thermistor. This current is small enough to prevent self heating of the thermistor, yet large enough to provide a measurable 10kΩ thermistor. What change(s) would you make to the circuit in order to obtain a constant current of 0.2mA though the

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