Recent content by Ramana

Thank you dear all for your best suggestions. I have used CENTER-TAPPED BATTERY CIRCUIT for split rail voltages for Op-Amp 741. The output is exactly as what i needed. That changes according to LVDT sensor. Best Luck.

Ok. Is there any circuit for making split voltage (negative voltage)??

Thank you for yur reply Dave. I don't understand split rail supply. I don't have any other components than Op-Amp right now.

Hello, Here need a suggestion on Unity gain buffer using op-amp 741. The output i need in the range according to change in LVDT sensor (resistive type). The output of the sensor is 35mv to 3.5 VDC. The circuit i build using op-amp741 as voltage follower where the output is given feedback to...

Dear Friends, Thanking you taking care at my project. I really appreciate your suggestions. I have built a adjustable current source from scratch and small a circuit to understand better how to optimize or modify the circuit according to the requirement. So it will be helpful your suggestions...

Thank for your quick reply. No problem. Let me try on the circuit with my little knowledge ;) Best wishes.

Please view the uploaded file. How can i replace 500 ohms variable pot with 10K ohms Digital pot in the circuit?? Problem is when i replace the digital pot 10k, i need to adjust current in the range of 1mA to 500mA acccording to change in the 10K digital pot. How the circuit can be modified...

Hello Sophiecentaur, Thank you for reply. No, i don't have available help with design and construction. I have googled regarding DIGITAL CURRENT SOURCE. My simple question is 1) I need to adjust current through digital pot in the precise of 1mA difference 2) Is any IC available to adjust in...

Hi Baluncore, wishes for the day. The required output voltage at load is 12V. Output current= 1mA to 500mA precise= 1mA Suggest any other circuits for required output using LM317 or Op-Amp with digital pot.

thank you for your reply Baluncore :) yes, difference with 1mA steps. Please see the upload file. here am using the circuit to build in range of 1mA to 500mA. The circuit i found somewhere in the forums as a car battery charging. The problem with the circuit is instead of CURRENT ADJUST USING...

Hello Everyone, Best wishes Am new to this forum. Please need a brand new suggestion for digitally controlled constant current source. I am designing this circuit for Plating thickness measurement. I have tried a several circuits based on Analog pot but would be helpful if i get with Digital...