pravin b
Member level 5
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Hi mates i am using howland current source to convert 1-5 Volts to 4-20mA; I have tested attached circuit in multisim it works good (as can bee seen in table). However I have put the same circuit on general purpose PCB but i get results as:
Volts output current
1 3.91
1.5 5.88
2 7.90
2.5 9.88
3 11.90
3.5 13.90
4 15.90
4.5 17.96
5 19.93
what could be done to get the correct output?
Volts output current
1 3.91
1.5 5.88
2 7.90
2.5 9.88
3 11.90
3.5 13.90
4 15.90
4.5 17.96
5 19.93
what could be done to get the correct output?