2 layers99.1 × 99.1 mm
Power supply panelized
thebiguno/microcontroller-projects
A home for a bunch of microcontroller projects which don't warrant their own repos.
223 parts75
2 layers99.1 × 99.1 mm
Power supply
thebiguno/microcontroller-projects75A home for a bunch of microcontroller projects which don't warrant their own repos.
- Size
- 99.1 × 99.1 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 185
- Nets
- 111
- Pads
- 514
- Tracks, vias
- 1,189, 259
- Pours
- 20
- Routed
- Yes
- KiCad
- KiCad 3
- Created
- 20 Nov 2014
- Updated
- 6 Jul 2024
Overview
Power supply is an open-source printed circuit board by thebiguno, from the thebiguno/microcontroller-projects repository on GitHub. It is a 2-layer board of 99.1 × 99.1 mm with 185 parts on 111 nets, routed with 1,189 tracks and 259 vias.
It is built around the ATMEGA32U4-AU, MCP4728-E/UN and LM317T, with the LM7805, LM7812 and TIP107 among its other parts. Its parts include 69 resistors, 37 capacitors, 31 switches, 11 diodes and 9 ICs. It belongs with the power boards and the AVR (ATmega, ATtiny) boards of this library.
Main components
6
ATMEGA32U4-AU
QFP-44(10x10)-40℃~+85℃ 10bit 16MHz 1KB 2.5KB 2.7V~5.5V 26 32KB 8 Bit AVR Built-in FLASH QFP-44(10x10) Microcontrollers (MCU/MPU/SOC) ROHSMicrochip TechnologyMicrocontrollers (MCU/MPU/SOC)
MCP4728-E/UN
MSOP-10-40℃~+125℃ 12 2.7V~5.5V 2LSB 4 40nA 6us I2C Integrated buffer、Power-on reset、Power-down mode、Programmable gain Voltage Buffer MSOP-10 Digital to Analog Converters (DAC) ROHSMicrochip TechnologyDigital To Analog Converters (DAC)
LM317T
TO-2200.003%Vout 0℃~+125℃@(Tj) 1 1.2V~37V 1.5A 40V 66dB@(120Hz) Adjustable Over Current Protection、Over Temperature Protection Positive TO-220 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSUMWVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
LM7805
TO-2630℃~+125℃ 1 1A 20V 2V 42uV 5V 62dB@(120Hz) 8mA Fixed Over Temperature Protection、Short Circuit Protection Positive TO-263 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSYONGYUTAIVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
LM7812
TO-263TO-263 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSYONGYUTAIUncategorised
TIP107
TO-2201000 100V 2.5V 2W 50uA 5V 8A PNP TO-220 Darlington Transistors ROHSSTMicroelectronicsDarlington Transistors
README
README.mdmicrocontroller-projects
A home for my microcontroller projects, including Stubby the Hexapod and others. It includes libraries for avr-gcc along with sample programs on how to use them, some KiCad modules, and the source code for a number of projects.
Some major projects include:
- Stubby the Hexapod (http://stubby.digitalcave.ca/stubby/) (Now extracted into its own repo at https://github.com/thebiguno/stubby)
- DrumMaster (http://drummaster.digitalcave.ca/drummaster/)
- Chiindii (http://chiindii.digitalcave.ca/chiindii/)
Some of the AVR libraries included here are:
- serial communications
- TWI (I2C), with support for master read / master write / slave read / slave write, plus callback functions for asyncronous communications
- reading data from a PS2 controller
- timer functions
- and much more
Parts
185| Qty | Value | Footprint | References |
|---|---|---|---|
| 20 | 0 | SM0603_VALUE | R2, R3, R15, R17, R22, R25, R26, R29, R31, R33, R37, R40, R44, R58, R59, R66 +4 |
| 20 | 1k | SM0603_VALUE | R4, R5, R11, R12, R13, R18, R30, R32, R34, R35, R36, R38, R39, R41, R45, R47 +4 |
| 17 | 0.1uF | SM0603_VALUE | C5, C6, C7, C8, C11, C12, C17, C18, C19, C20, C21, C22, C34, C35, C36, C37 +1 |
| 11 | MOUNTING_HOLE | MOUNTING_HOLE_#4 | MP1, MP2, MP5, MP7, MP9, MP11, MP14, MP16, MP17, MP19, MP20 |
| 10 | 1uF | SM0603_VALUE | C10, C13, C14, C15, C16, C24, C25, C31, C32, C33 |
| 7 | 100k | SM0603_VALUE | R46, R60, R61, R62, R63, R64, R65 |
| 7 | VS | SCREW_TERMINAL_3 | K1, K2, K3, K4, K5, K6, K7 |
| 5 | 5.1k | SM0603_VALUE | R14, R19, R24, R42, R68 |
| 4 | 100uF | C1V7 | C1, C2, C3, C4 |
| 4 | 10nF | SM0603_VALUE | C27, C28, C29, C30 |
| 4 | 5.1V | SOT23-SPECIAL | D4, D5, D6, D7 |
| 4 | MOUSE_BITES | mouse_bites | MP3, MP4, MP6, MP13 |
| 4 | TVS | SOT23 | D8, D9, D10, D11 |
| 3 | 10k | SM0603_VALUE | R27, R48, R57 |
| 3 | I2C_PROG | SIL-1 | K21, K22, K23 |
| 3 | MCP4728 | MSOP10-0.5 | U7, U8, U9 |
| 3 | SCHOTTKEY | SM1206_DIODE | D1, D2, D3 |
| 2 | 20k | SM0603_VALUE | R10, R67 |
| 2 | 22 | SM0603_VALUE | R49, R52 |
| 2 | 2k | SM0603_VALUE | R20, R28 |
| 2 | 4.7k | SM0603_VALUE | R50, R51 |
| 2 | 510 | SM0603_VALUE | R16, R21 |
| 2 | 8pF | SM0603_VALUE | C23, C26 |
| 2 | GRAPHIC | DIGITALCAVE_AUTHOR | MP8, MP15 |
| 2 | GRAPHIC | DIGITALCAVE_LOGO | MP10, MP18 |
| 2 | GRAPHIC | DIGITALCAVE_URL | MP12, MP21 |
| 2 | HEATSINK | HEATSINK_OHMITE_FSERIES | K12, K14 |
| 2 | MC3303PT | TSSOP14 | U2, U3 |
| 2 | USB | SIL-4 | K15, K17 |
| 1 | 100 | SM0603_VALUE | R23 |
| 1 | 10k | POTENTIOMETER_SMD | RV1 |
| 1 | 200 | SM0603_VALUE | R6 |
| 1 | 200k | SM0603_VALUE | R43 |
| 1 | ATMEGA32U4-A | TQFP44 | U1 |
| 1 | CHANNEL_0 | SIL-4 | K24 |
| 1 | CHANNEL_1 | SIL-4 | K25 |
| 1 | CHANNEL_2 | SIL-4 | K26 |
| 1 | CHANNEL_3 | SIL-4 | K27 |
| 1 | CHANNEL_4 | SIL-4 | K28 |
| 1 | CHANNEL_5 | SIL-4 | K29 |
| 1 | CONTROL_FEEDBACK | SIL-4 | K11 |
| 1 | CRYSTAL_SMD_4PIN | CRYSTAL_SMD_2.5x2 | X1 |
| 1 | ENC1 | SIL-4 | K18 |
| 1 | ENC2 | SIL-4 | K19 |
| 1 | FAN_12V | SIL-2 | K20 |
| 1 | HD44780 | SIL-16 | DS1 |
| 1 | HWB | SW_6x3 | SW2 |
| 1 | ISP | ISP_EDGE | P1 |
| 1 | I_LIM_LED | SIL-2 | K13 |
| 1 | LM317T | TO220_VERT | U4 |
| 1 | LM7805 | TO220_VERT | U6 |
| 1 | LM7812 | TO220_VERT | U5 |
| 1 | POWER | SCREW_TERMINAL_2 | K16 |
| 1 | PROG_JMP | pin_array_3x2 | P2 |
| 1 | RESET | SW_6x3 | SW1 |
| 1 | Rsh | SM2512 | R1 |
| 1 | SUPPLY | SCREW_TERMINAL_3 | K9 |
| 1 | TIP107 | TO220_VERT | Q1 |
| 1 | USB-MINI-B | USB_MINI_B_fixed | CON1 |
| 1 | VOUT | SCREW_TERMINAL_2 | K10 |
| 1 | V_LED | SIL-2 | K8 |
Questions
How big is the Power supply PCB?
It measures 99.1 × 99.1 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Power supply use?
185 parts, built around the ATMEGA32U4-AU, MCP4728-E/UN, LM317T and LM7805. 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 Power supply KiCad files?
From the thebiguno/microcontroller-projects repository on GitHub, at the commit this page was made from: the board is projects/power_supply/kicad/power_supply.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Power supply design in my own project?
Its repository states no licence, so its author keeps all rights: ask thebiguno before reusing the design.
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