HardLabs

Lab psu

jfjhh·lab-psu

Lab psu PCB layout, top view — open source board by jfjhh

About the Lab psu PCB

Lab psu is an open source PCB design by jfjhh, published on GitHub. It is a 2-layer board measuring 76.2 × 76.2 mm, with 63 components from 46 distinct parts.

Other key parts include the LM4040DBZ-2.5, LT3081, LM393, LM334M and LM317L_TO92. By type, the board carries 28 resistors, 8 capacitors, 6 ICs, 5 jumpers, 3 connectors and 3 switches.

It belongs with the power & battery designs in this gallery.

From the project

A Simple Lab Power Supply

This repository contains the KiCAD files and documentation for a simple lab power supply.

The exported gerber and NC drill files are in the gerbers directory.

The documentation for the project is in the doc directory. This includes:

- KiCAD and DigiKey bills of materials in doc/bom. - Datasheets for all ICs used in doc/datasheets. - PCB layer PDFs in doc/pcb. - A schematic PDF at doc/psu-schematic.pdf. - A comprehensive manual in doc/manual.

Main components on the Lab psu

LM4040DBZ-2.5LT3081LM393LM334MLM317L_TO92

Lab psu bill of materials (BOM)

63 components, 46 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
LM4040DBZ-2.5
U1
1
LT3081
U2
1
LM393
U3
1
LM334M
U4
2
LM317L_TO92
U5, U6
1
SCREW_TERMINAL_01X02
Screw_Terminal_01x02
J1
1
Barrel_Jack
J2
1
Binding posts
J3
1
Min Lim
JP1
1
No limit
JP2
1
Preload
JP3
2
Guard
JP4, JP5
1
100R
RV1
1
500K
500k
RV2
1
10K
10k
RV3
1
1k
RV4
1
500K
500k
RV5
2
SW_SP4T
SW1, SW2
1
Lever toggle
SW3
1
Vin
TP1
Show 26 more
QtyPartRefs
1
Vout
TP2
1
Gnd
TP5
2
LED_RED
D1, D2
6
0U1
0u1
C1, C2, C5, C6, C7, C8
2
10U
10u
C3, C4
1
1R8
R1
1
4R7
R2
1
13R
R3
1
27R
R4
1
68R
R5
2
100R
R6, R14
1
180R
R7
4
1R0
R8, R10, R11, R12
1
2R2
R9
1
39R
R13
1
4K7
4k7
R15
1
390R
R16
1
1K5
1k5
R17
1
1M
R18
1
24K
24k
R19
2
1k
R20, R26
1
150K
150k
R21
1
1k
R22
1
22R
R23
2
10K
10k
R24, R25
2
100R
R27, R28

Lab psu design files

The KiCad project lives in the jfjhh/lab-psu repository on GitHub; these links point at the commit this page was built from.

Lab psu: common questions

How big is the Lab psu PCB?

The Lab psu measures 76.2 × 76.2 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Lab psu?

63 components, from 46 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the Lab psu design files?

From the jfjhh/lab-psu repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.

Can I use the Lab psu design in my own project?

The repository has no license, so all rights stay with jfjhh. Use it as a reference, and ask the author before reusing the design.

Similar boards