Howland TI 4 - 20 mA

129

04:20:45

Howland current pump 

published 6 years ago

hurz

6 years ago

i think it must be controled from the negative input with an negative voltage so -1V for 4mA and -5V for 20mA. Control from positive OpAmp input is critical in case of clipping it might flip over as schmitt trigger and never comes back into an linear operation.

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