2 layers57.2 × 38.1 mm
LaserDriverTest
kemerelab/ConstantCurrent
Circuits for driving constant current stimulators for electrical biphasic pulses and diodes.
10 parts1GPL-3.0
2 layers63.5 × 81.3 mm
OpAmpStimulator
kemerelab/ConstantCurrent1Circuits for driving constant current stimulators for electrical biphasic pulses and diodes.
- Size
- 63.5 × 81.3 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 31
- Nets
- 24
- Pads
- 83
- Tracks, vias
- 135, 43
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 15 May 2025
- Updated
- 30 May 2025
Overview
OpAmpStimulator is an open-source printed circuit board by kemerelab, from the kemerelab/ConstantCurrent repository on GitHub, published under the GPL-3.0 licence. It is a 2-layer board of 63.5 × 81.3 mm with 31 parts on 24 nets, routed with 135 tracks and 43 vias.
It is built around the LT1617ES5. Its parts include 10 connectors, 6 capacitors, 6 resistors, 4 diodes and 1 inductor.
Main components
1README
README.mdConstantCurrent
Circuits for driving constant current stimulators for electrical biphasic pulses and diodes.
Currently in Prototyping stage
- 3A LED driver.
- Constant current biphasic pulses using low power op amps.
Goals
- Integrate with https://github.com/kemerelab/pi-stimserver project.
Parts
31| Qty | Value | Footprint | References |
|---|---|---|---|
| 6 | Conn_01x02_Pin | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J1, J3, J4, J5, J7, J9 |
| 4 | 100k | Resistor_SMD:R_0805_2012Metric | R1, R2, R3, R4 |
| 4 | 1uF | Capacitor_SMD:C_0603_1608Metric | C2, C4, C5, C6 |
| 4 | D_Schottky | Diode_SMD:D_0805_2012Metric | D1, D2, D3, D4 |
| 3 | Conn_01x03_Pin | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J2, J6, J8 |
| 1 | 100pF | Capacitor_SMD:C_0603_1608Metric | C3 |
| 1 | 10k | Resistor_SMD:R_0805_2012Metric | RG1 |
| 1 | 210k | Resistor_SMD:R_0603_1608Metric | R5 |
| 1 | 22uH | Inductor_SMD:L_1210_3225Metric | L1 |
| 1 | 24.9k | Resistor_SMD:R_0603_1608Metric | R6 |
| 1 | 4.7uF | Capacitor_SMD:C_0805_2012Metric | C1 |
| 1 | ADG1201 | StiMo:RJ_6_ADI | ADG1201 |
| 1 | Conn_02x02_Odd_Even | Connector_PinHeader_2.54mm:PinHeader_2x02_P2.54mm_Vertical | J10 |
| 1 | LT1617 | StiMo:S_5_ADI | LT1617 |
| 1 | LT6023HDD-1-PBF | StiMo:DFN-10_DD_LIT | ULT6023-1 |
Questions
How big is the OpAmpStimulator PCB?
It measures 63.5 × 81.3 mm and has 2 copper layers, 1.6 mm thick.
What parts does the OpAmpStimulator use?
31 parts, built around the LT1617ES5. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the OpAmpStimulator KiCad files?
From the kemerelab/ConstantCurrent repository on GitHub, at the commit this page was made from: the board is OpAmpStimulator/OpAmpStimulator.kicad_pcb and its schematic LaserDriverTest/LaserDriverTest.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the OpAmpStimulator design in my own project?
Its repository publishes it under the GPL-3.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
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