Plans for a tDCS unit with adjustable current supply, which stays below 2mA, were devised. A sketch was made in pencil then drafted on the computer. A part list was made at Digikey.com which includes needed except electrodes and electrode wires. The adjust resistor selected is 1-100 Ohms but a potentiometer of 0-50 Ohms would probably be sufficient. A 34 Ohm resistor will be put in series with the potentiometer so the current will not rise above 2mA even when the potentiometer is set to 0 Ohms.
Sketch of circuit
CAD schematic of circuit
- Order enough parts to validate circuit
- Add electrode wires from Amazon with 3.5mm jack
- Change current regulator icon to look like TO92 case
- Add 3.5mm jack + alligator clips to part list
The rest of the posts for this project have been arranged by date.
A list showing of all the final posts of COMPLETED projects.
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