4 layers116.8 × 111.8 mm
Dac
eshazen/scope-clock
It seems I have a bunch of surplus 12V transformers in my office, so probably will use two of those to generate the +8V and -5V with bridge rectifiers.
60 parts
2 layers120 × 149.5 mm
Lab Power Supply
OberTechniks/LPSDIY Lab Power Supply with adjustable voltage and current limiting
- Size
- 120 × 149.5 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 251
- Nets
- 217
- Pads
- 797
- Tracks, vias
- 599, 24
- Pours
- 10
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 16 Jan 2019
- Updated
- 16 Jan 2019
Overview
Lab Power Supply is an open-source printed circuit board by OberTechniks, from the OberTechniks/LPS repository on GitHub. It is a 2-layer board of 120 × 149.5 mm with 251 parts on 217 nets, routed with 599 tracks and 24 vias.
It is built around the PIC32MX350F256L-I/PT, LM324 and INA226AIDGSR, with the MCP4822-E/P, 23LC512-E/P and 74HC14 among its other parts. Its parts include 99 resistors, 62 capacitors, 13 transistors, 12 ICs and 11 diodes. It belongs with the power boards and the PIC boards of this library.
Main components
8
PIC32MX350F256L-I/PT
TQFP-100(12x12)-40℃~+85℃ 10bit 2.3V~3.6V 256KB 32 Bit 64KB 80MHz 85 Built-in FLASH MIPS32 M4K TQFP-100(12x12) Microcontrollers (MCU/MPU/SOC) ROHSMicrochip TechnologyMicrocontrollers (MCU/MPU/SOC)
LM324
SOP-14-1.5V~10V 0℃~+70℃ 24V 250nA 3V~20V 4 40mA 50nA 700uA 7mV 80dB SOP-14 Operational Amplifier ROHSHXY MOSFETOperational Amplifier
INA226AIDGSR
VSSOP-10-40℃~+125℃ 0.1uV/℃ 0V~36V 100pA 140dB 2.5uV 2.7V~5.5V 330uA High-side detection、Low-side detection、Bidirectional detection、Power monitoring、Digital output interface、Programmable threshold alarm、Enable/shutdown function ±40V VSSOP-10 Current Sense Amplifiers ROHSTexas InstrumentsCurrent Sense Amplifiers
MCP4822-E/P
PDIP-8-40℃~+125℃ 12 12LSB 2 2.7V~5.5V 20MHz 4.5us 415uA 50ppm/℃ Built-in Built-in SPI Voltage Buffer PDIP-8 Digital to Analog Converters (DAC) ROHSMicrochip TechnologyDigital To Analog Converters (DAC)23LC512-E/P
PDIP-8-40℃~+125℃ 2.5V~5.5V 512Kbit PDIP-8 SRAM ROHSMicrochip TechnologySRAM74HC14
SOP-14-40℃~+85℃ 1.9V、3.98V、4.4V、5.48V、5.9V 100mV、260mV、260mV 20uA 25ns@4.5V,50pF 2V~6V 6 74HC Noise suppression function Schmitt trigger SOP-14 Inverters ROHSJSMSEMIInverters
LTC2943CDD
SON8Multicell Battery Gas Gauge with Temperature, Voltage and Current MeasurementAnalog DevicesUncategorisedEN11-VSM1AF20
-- Lack of specifications ROHSTT ElectronicsUncategorised
README
README.mdLPS
DIY Lab Power Supply with adjustable voltage and current limiting
Parts
251| Qty | Value | Footprint | References |
|---|---|---|---|
| 32 | 0.1uF | Capacitors_SMD:C_0805 | C1, C12, C13, C15, C16, C26, C28, C29, C30, C31, C36, C37, C38, C39, C40, C41 +16 |
| 31 | 10K | Resistors_SMD:R_0805 | R17, R18, R19, R29, R31, R32, R38, R51, R52, R53, R54, R57, R58, R62, R63, R64 +15 |
| 26 | TestPoint | Lab Power Supply Footprints:SMT_Test_Point | TP2, TP10, TP11, TP12, TP13, TP14, TP15, TP16, TP17, TP18, TP19, TP20, TP21, TP22, TP23, TP24 +10 |
| 18 | 100K | Resistors_SMD:R_0805 | R3, R4, R5, R6, R7, R10, R11, R22, R23, R42, R44, R47, R50, R59, R60, R61 +2 |
| 13 | 120 | Resistors_SMD:R_0805 | R2, R34, R41, R43, R45, R46, R48, R49, R55, R56, R86, R90, R98 |
| 10 | 4.7K | Resistors_SMD:R_0805 | R21, R36, R84, R85, R91, R92, R93, R94, R95, R96 |
| 6 | MOSFET N-CH 20V 0.2A EMT3 | Lab Power Supply Footprints:SC-89 | Q1, Q7, Q8, Q9, Q10, Q11 |
| 5 | 22uF | Capacitors_SMD:CP_Elec_6.3x5.3 | C23, C24, C25, C27, C35 |
| 5 | D_Schottky_ALT | Diodes_SMD:D_SMC | D3, D6, D8, D9, D11 |
| 4 | 0 | Resistors_SMD:R_0805 | R73, R82, R83, R99 |
| 4 | 10 | Resistors_SMD:R_0805 | R71, R72, R76, R77 |
| 4 | 1K | Resistors_SMD:R_2512 | R1, R30, R37, R40 |
| 4 | 47nF | Capacitors_SMD:C_0805 | C2, C3, C4, C17 |
| 4 | Jumper_3_Pos | Socket_Strips:Socket_Strip_Straight_1x03_Pitch2.54mm | JP1, JP2, JP3, JP4 |
| 3 | 22uF | Capacitors_SMD:C_0805 | C14, C56, C59 |
| 2 | 0.22uF | Capacitors_SMD:C_0805 | C7, C8 |
| 2 | 1.0uF | Capacitors_SMD:C_0805 | C11, C60 |
| 2 | 100uF | Capacitors_ThroughHole:CP_Radial_D8.0mm_P3.50mm | C18, C19 |
| 2 | 12pF | Capacitors_SMD:C_0805 | C52, C53 |
| 2 | 1M | Resistors_SMD:R_0805 | R24, R25 |
| 2 | 1nF | Capacitors_SMD:C_0805 | C6, C32 |
| 2 | 2.2uF | Capacitors_SMD:C_0805 | C5, C10 |
| 2 | 2600mAH | Lab Power Supply Footprints:Keystone_Electronics_54 | BAT1, BAT2 |
| 2 | 4.7 | Resistors_SMD:R_0805 | R12, R13 |
| 2 | 470 | Resistors_SMD:R_0805 | R35, R75 |
| 2 | 47pF | Capacitors_SMD:C_0805 | C21, C34 |
| 2 | EN11-VSM1AF20 | Lab Power Supply Footprints:EN11-VSM1AF20 | SW1, SW2 |
| 2 | LM324 | Housings_SOIC:SOIC-14_3.9x8.7mm_Pitch1.27mm | U2, U3 |
| 1 | .1 | Resistors_SMD:R_1206 | R39 |
| 1 | 0.03 | Resistors_SMD:R_2512 | R16 |
| 1 | 0.04 | Resistors_SMD:R_2512 | R14 |
| 1 | 10K | Lab Power Supply Footprints:3361P-1-103GLF | RV1 |
| 1 | 10V | Diodes_SMD:D_MiniMELF | D10 |
| 1 | 10uH | Lab Power Supply Footprints:IFSC1515AHER100M01 | L1 |
| 1 | 1K | Resistors_SMD:R_0805 | R26 |
| 1 | 1uH | Lab Power Supply Footprints:2520_Metric | L3 |
| 1 | 1uH | Lab Power Supply Footprints:SRP1245A-1R0M | L5 |
| 1 | 22V | Diodes_SMD:D_SMA | D1 |
| 1 | 22pF | Capacitors_SMD:C_0805 | C33 |
| 1 | 22uF | Resistors_SMD:R_0805 | C48 |
| 1 | 23LC512 | Housings_SOIC:SOIC-8_3.9x4.9mm_Pitch1.27mm | U10 |
| 1 | 24V | Diodes_SMD:D_SMA | D12 |
| 1 | 27K | Resistors_SMD:R_0805 | R28 |
| 1 | 2A | Resistors_SMD:R_1206 | F3 |
| 1 | 33uH | Lab Power Supply Footprints:SRP1265A-330M | L2 |
| 1 | 3A | Resistors_SMD:R_1206_HandSoldering | F1 |
| 1 | 3K | Resistors_SMD:R_0805 | R27 |
| 1 | 4.7uF | Capacitors_SMD:C_0805 | C22 |
| 1 | 47K | Resistors_SMD:R_0805 | R33 |
| 1 | 568-0102-173F | Lab Power Supply Footprints:568-0102-173F | D13 |
| 1 | 6.8 | Resistors_SMD:R_2512 | R15 |
| 1 | 6800pF | Capacitors_SMD:C_0805 | C20 |
| 1 | 6A | Resistors_SMD:R_1206_HandSoldering | F2 |
| 1 | 74HC14 | Housings_SSOP:TSSOP-14_4.4x5mm_Pitch0.65mm | U1 |
| 1 | 80.6K | Resistors_SMD:R_0805 | R20 |
| 1 | B | Lab Power Supply Footprints:APG0603PBC-TT-5MAV | D14 |
| 1 | BARREL_JACK | Lab Power Supply Footprints:PJ-066A | J1 |
| 1 | Crystal_Small | Lab Power Supply Footprints:ABS25-32.768KHZ-T | Y1 |
| 1 | D_Schottky_AAK | Lab Power Supply Footprints:V20PW10-M3 | D7 |
| 1 | Debug Connector | Socket_Strips:Socket_Strip_Straight_1x06_Pitch2.54mm | J4 |
| 1 | Ferrite | Capacitors_SMD:C_0805 | L4 |
| 1 | ICSP_Header | Socket_Strips:Socket_Strip_Straight_1x06_Pitch2.54mm | J3 |
| 1 | INA226AIDGSR | Housings_SSOP:MSOP-10_3x3mm_Pitch0.5mm | U8 |
| 1 | LCD-09052 | Socket_Strips:Socket_Strip_Straight_2x08_Pitch2.54mm | X1 |
| 1 | LTC1871-1 | Housings_SSOP:MSOP-10_3x3mm_Pitch0.5mm | U6 |
| 1 | LTC2943 | Housings_DFN_QFN:DFN-8-1EP_3x3mm_Pitch0.5mm | U12 |
| 1 | MAX1873 | Housings_SSOP:QSOP-16_3.9x4.9mm_Pitch0.635mm | U4 |
| 1 | MCP40D17T-104E/LT | TO_SOT_Packages_SMD:SOT-363_SC-70-6 | U7 |
| 1 | MCP4822 | Housings_SOIC:SOIC-8_3.9x4.9mm_Pitch1.27mm | U11 |
| 1 | OUTPUT | Wire_Pads:SolderWirePad_2x_2mmDrill | J2 |
| 1 | PIC32MX350F256L-I/PT | Housings_QFP:TQFP-100_12x12mm_Pitch0.4mm | U9 |
| 1 | Q_NMOS_GDS | TO_SOT_Packages_SMD:TO-252-2 | Q3 |
| 1 | Q_NMOS_GDS | TO_SOT_Packages_SMD:TO-263-2 | Q6 |
| 1 | Q_PMOS_GDS | TO_SOT_Packages_SMD:TO-252-3_TabPin2 | Q2 |
| 1 | Q_PMOS_GDS | TO_SOT_Packages_THT:TO-220-3_Vertical | Q5 |
| 1 | Q_PMOS_GSD | TO_SOT_Packages_SMD:SOT-23 | Q12 |
| 1 | Q_PNP_BEC | Lab Power Supply Footprints:MMBT3906TT1G | Q13 |
| 1 | Q_PNP_BEC | TO_SOT_Packages_SMD:SOT-23 | Q4 |
| 1 | RN4678 | Lab Power Supply Footprints:RN4678 | U13 |
| 1 | Reset | Lab Power Supply Footprints:7914J-1-000E | SW6 |
The 247 most common of 251 parts.
Questions
How big is the Lab Power Supply PCB?
It measures 120 × 149.5 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Lab Power Supply use?
251 parts, built around the PIC32MX350F256L-I/PT, LM324, INA226AIDGSR and MCP4822-E/P. 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 Lab Power Supply KiCad files?
From the OberTechniks/LPS repository on GitHub, at the commit this page was made from: the board is KiCAD/Lab_Power_Supply.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Lab Power Supply design in my own project?
Its repository states no licence, so its author keeps all rights: ask OberTechniks before reusing the design.
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