DualLM317BenchSupply
About the DualLM317BenchSupply PCB
DualLM317BenchSupply is an open source PCB design by cellularmitosis, published on GitHub under the MIT license. It is a 2-layer board measuring 99.1 × 99.7 mm, with 49 components from 24 distinct parts.
Other key parts include the 7812, LM317 and 7805. By type, the board carries 14 resistors, 10 capacitors, 5 diodes, 4 ICs, 4 connectors and 4 switches.
It belongs with the power & battery designs in this gallery.
From the project
A simple adjustable voltage, current limited bench power supply using two LM317 regulators.
DualLM317BenchSupply ====================
A simple adjustable voltage, current limited bench power supply using two LM317 regulators, designed in KiCAD.
Voltage is variable, using a 10-turn pot. Current is limited in 6 steps (13mA, 25mA, 63mA, 125mA, 250mA, 500mA). A current-limit bypass switch allows for more than 500mA. Be careful not to exceed 1.5A. This is the "trust me, I know what I'm doing" switch. Footprints included for both 2.1x5.5mm and 2.5x5.5mm DC barrel jacks (the two sizes you are most likely to have on hand). * Modifications possible by populating the board with alternate…
Main components on the DualLM317BenchSupply
DualLM317BenchSupply bill of materials (BOM)
49 components, 24 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 7812 | TO-220_V_069B | U101 |
| 2 | LM317 | TO-220_V_069B | U102, U103 |
| 1 | 7805 | TO-220_V_069B | U104 |
| 1 | BARREL_JACK | BARREL_JACK_21x55 | CON101 |
| 1 | BARREL_JACK | BARREL_JACK_25x55 | CON102 |
| 1 | Vout+ | Banana_A | P101 |
| 1 | Vout- | Banana_A | P102 |
| 1 | VOLTMETER | DVM036A | DS101 |
| 1 | AMMETER_V | EBAY_AMMETER | DS102 |
| 4 | HOLE | hole_M3 | H101, H102, H103, H104 |
| 1 | 4.7k | WXD3-13-2W_A | RV101 |
| 1 | 10 | 3296W | RV102 |
| 3 | SPDT | M2012SS1W01 | SW101, SW102, SW103 |
| 1 | DP6T | G3SR022-R | SW201 |
| 4 | 1N4148 | DIODE_3 | D101, D102, D104, D105 |
| 1 | LED | LED_5MM | D103 |
| 1 | 1000uF | ELCAP_20_52_V | C101 |
| 4 | 1uF | ELCAP_10_20_V | C102, C105, C107, C110 |
| 3 | 0.1uF | C2 | C103, C108, C109 |
| 2 | 10uF | ELCAP_10_20_V | C104, C106 |
Show 4 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 150 | R_AXIAL_0W25 | R101 |
| 1 | 330 | R_AXIAL_0W25 | R102 |
| 3 | 100 | R_AXIAL_0W25 | R201, R202, R203 |
| 9 | 10 | R_AXIAL_0W5 | R204, R205, R206, R207, R208, R209, R210, R211 +1 |
DualLM317BenchSupply design files
The KiCad project lives in the cellularmitosis/DualLM317BenchSupply repository on GitHub; these links point at the commit this page was built from.
DualLM317BenchSupply: common questions
How big is the DualLM317BenchSupply PCB?
The DualLM317BenchSupply measures 99.1 × 99.7 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the DualLM317BenchSupply?
49 components, from 24 distinct parts. The full bill of materials is listed on this page.
Where can I download the DualLM317BenchSupply design files?
From the cellularmitosis/DualLM317BenchSupply repository on GitHub, which has the KiCad layout; the links under Design files point to each one.
Can I use the DualLM317BenchSupply design in my own project?
Yes, under the terms of its MIT license, which cellularmitosis chose for the repository.
Similar boards
Stack chan
stack-chan
50 × 50 mm33 parts2LApache-2.01.7k
Display Carrier
AxxAxx
35.6 × 58.2 mm5 parts2LGPL-3.01.7k
ControllerCurrentShuntAddOn
stuartpittaway
26 × 16.9 mm9 parts2LCC-BY-NC-4.01.1k
Module 16S PassiveBalanceAddOn
61 × 74 mm86 parts2LCC-BY-NC-4.01.1k
TemperaturePCB PANEL
116 × 75.5 mm178 parts2LCC-BY-NC-4.01.1k
ProgrammingAdapter
10.5 × 83 mm3 parts2LCC-BY-NC-4.01.1k