2 layers90.4 × 60.5 mm
PSU
jscrane/PSU
Software-controlled variable-voltage power supply with current and power monitoring
19 parts5Apache-2.0
2 layers85.1 × 53.3 mm
Constant current LED driver firmware and schematics
- Size
- 85.1 × 53.3 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 24
- Nets
- 35
- Pads
- 90
- Tracks, vias
- 122, 10
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 4
- Created
- 27 Dec 2017
- Updated
- 22 Aug 2022
Overview
LED is an open-source printed circuit board by Jakeler, from the Jakeler/LED-CC-Firmware repository on GitHub, published under the GPL-3.0 licence. It is a 2-layer board of 85.1 × 53.3 mm with 24 parts on 35 nets, routed with 122 tracks and 10 vias.
It is built around the LM358 and X9C103P. Its parts include 6 resistors, 4 ICs, 3 connectors and 1 diode.
Main components
2
LM358
SOP-8-18V~18V 0℃~+70℃ 1.2MHz 10nA 2 24mA 3V~36V 500uA 50nA 5mV 80dB Built-in compensation SOP-8 Operational Amplifier ROHSMSKSEMIOperational Amplifier
X9C103P
PDIP-80℃~+70℃ 100 4.5V~5.5V 40Ω、100Ω 750uA Linear Non-volatile storage ±20% ±300ppm/℃ PDIP-8 Digital PotentiometersRenesas ElectronicsDigital Potentiometers
README
README.mdConstant current LED Driver
Microcontroller based constant current driver. Based around a LM2596S drop down regulator (because these complete modules are cheaper than buying the components) and an Arduino Pro Mini.
The repo contains a PlatformIO project to compile the Arduino firmware. In the schematic/ subdirectory is the KiCAD project with the PCB layout, footprints, etc.
Parts
24| Qty | Value | Footprint | References |
|---|---|---|---|
| 3 | Measurement_Points:Measurement_Point_Square-SMD-Pad_Small | +5, G, S | |
| 2 | 15K | Resistors_ThroughHole:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R3, R5 |
| 2 | 4.7K | Resistors_ThroughHole:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R4, R6 |
| 1 | 0.39 | Resistors_ThroughHole:R_Axial_Shunt_L22.2mm_W9.5mm_PS14.30mm_P25.40mm | R2 |
| 1 | 20K | Resistors_ThroughHole:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R1 |
| 1 | 3-4S LiPo | Wire_Connections_Bridges:WireConnection_2.00mmDrill | 12-20V |
| 1 | Buzzer | Buzzers_Beepers:Buzzer_12x9.5RM7.6 | BZ1 |
| 1 | Conn_01x03 | Socket_Strips:Socket_Strip_Straight_1x03_Pitch2.54mm | J2 |
| 1 | Conn_01x04 | Socket_Strips:Socket_Strip_Straight_1x04_Pitch2.54mm | J1 |
| 1 | Conn_01x06 | Socket_Strips:Socket_Strip_Straight_1x08_Pitch2.54mm | J3 |
| 1 | DC-DC | DC-DC:ChinaLM2596S-Module | DC1 |
| 1 | LED | Wire_Connections_Bridges:WireConnection_2.00mmDrill | D1 |
| 1 | LM358 | Housings_DIP:DIP-8_W7.62mm | U1 |
| 1 | LOGO | Logos:birchwood2 | G*** |
| 1 | MC78M05_TO252 | TO_SOT_Packages_SMD:TO-252-2 | U2 |
| 1 | Pro Mini | DC-DC:ProMini | IC2 |
| 1 | X9C103P | X9C103P:DIP254P762X533-8 | IC1 |
The 21 most common of 24 parts.
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Questions
How big is the LED PCB?
It measures 85.1 × 53.3 mm and has 2 copper layers, 1.6 mm thick.
What parts does the LED use?
24 parts, built around the LM358 and X9C103P. 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 LED KiCad files?
From the Jakeler/LED-CC-Firmware repository on GitHub, at the commit this page was made from: the board is schematic/LED.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the LED 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).