Dear Sir,
My customer develope a contact resistance measurement instrument with 4wires configuration. that is to say exicate currrent source and output signal is seperated. LP38513-ADJ is recommended to build constant current source.
It seems LP38513 output is instable because when it is enabled, 3X-5X inrush current at input may occurs. I think it is caused by incorrent loop compensation, but I don't know how to fix. appreciate your comments.
More details information could be found from the file i uploaded here.3808.LP38513_currentLoop.pptx
Again appreciate your comments.
regards
Hawk Tong