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Thank you for response.
I am wondering even in lower load resistor around 1kohm this current source does not work.
Do I need to change the opamp,? Is there specific opamps IC work better than others?
Do I need to change Resistors design ?
Thanks
Hello everyone
I want to have a VCCS. I used the Howland current source design.
I need to control load current by adjusting input AC voltage. I need a constant current in the frequency of the input. The current 1mA.
Based on the theory, I set the R2=R4=1Kohm and R1=R3=2Kohm. The load is in the...
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