2 layers70.2 × 39.1 mm
Motion nightlight
ezcGman/motion-nightlight
KiCad files for an easy circuit to build a motion nightlight yourself
10 parts
2 layers100 × 100 mm
YauDL
madworm/YauDL6LAYOUT FILES: (Y)et (a)nother (u)seless (D)ummy (L)oad
- Size
- 100 × 100 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 49
- Nets
- 20
- Pads
- 100
- Tracks, vias
- 327, 16
- Pours
- 6
- Routed
- Yes
- KiCad
- KiCad 3
- Created
- 11 Jun 2012
- Updated
- 27 Apr 2015
Overview
YauDL is an open-source printed circuit board by madworm, from the madworm/YauDL repository on GitHub. It is a 2-layer board of 100 × 100 mm with 49 parts on 20 nets, routed with 327 tracks and 16 vias.
It is built around the LM2904, BZX84C5V6 and IRL3803S, with the MBR1045 among its other parts. Its parts include 7 capacitors, 7 resistors, 2 ICs, 2 transistors and 1 diode.
Main components
4
LM2904
SOP-8-15V~-1.5V、1.5V~15V 0℃~+70℃ 1MHz 2 2mV 3V~30V 3nA 40mA 45nA 500uA 85dB SOP-8 Operational Amplifier ROHSGOODWORKOperational Amplifier
BZX84C5V6
SOT-231 Independent 1uA 300mW 400Ω 40Ω 5.2V~6V 5.6V SOT-23 Zener Diodes ROHSJiangsu Changjing Electronics Technology (CJ)Zener Diodes
IRL3803S
TO-263UncategorisedCmos
MBR1045
TO-220-2-65℃~+175℃ 1 Independent 100uA@45V 10A 150A 45V 570mV@10A TO-220-2 Schottky Diodes ROHSonsemiSchottky Diodes
README
README.mdYauDL
LAYOUT FILES: (Y)et (a)nother (u)seless (D)ummy (L)oad
For testing various projects I desire an adjustable constant current sink. Nothing fancy, not microcontroller controlled, not 'constant power', maybe with a display, maybe just use a DMM for that. BUT I need AMPS! I'm shooting for a device that is capable to sink 5A. At least for a limited amount of time, a couple of minutes should be enough to see if the DUT overheats and/or craps out.
It will be as simple as can be: MOSFET(s), heatsink, sense resistor(s), opamp(s), gain control, reference voltage, multi-turn pot to set the reference current. It may or may not come with binding posts.
The first opamp will amplify the voltage drop on the mOhm range sense resistor to a useful value (1V --> 1A), the second opamp will be wired in the usual follower setup driving the MOSFET(s). I don't want to use a 1R sense resistor, as this causes the device to need at least 5V for 5A. I'm aiming at something lower.
BTW. It is strictly for DC input voltages.
Before having PC-boards made, please make sure you know about your manufacturer's peculiarities! Especially drill-sizes and their tolerances may vary too much and give you trouble.
Parts
49| Qty | Value | Footprint | References |
|---|---|---|---|
| 5 | 10µF | -C1206 | C1, C2, C5, C6, C7 |
| 4 | Binding_post | MADW__binding_post_4mm_6A | T1, T2, T3, T4 |
| 4 | CONN_1 | MADW__mounting_hole_3mm | MH1, MH2, MH3, MH4 |
| 2 | 100R | -R0805 | R3, R4 |
| 2 | 100mOhm | MADW__power_resistor_5W | RP1, RP2 |
| 2 | 100nF | -C0805 | C3, C4 |
| 2 | 10k | -R0805 | R1, R5 |
| 2 | BZX84C_5V6 | -SOT23 | DZ1, DZ2 |
| 2 | CHINESE_ORDER_NUMBER | CHINESE_ORDER_NUMBER | G7, G8 |
| 2 | FIRE | FIRE | G5, G6 |
| 2 | IRL3803 | MADW__TO220_V | Q1, Q2 |
| 2 | LED_SMILE | LED_SMILE | G1, G2 |
| 2 | OSHW_LOGO | OSHW_LOGO | G3, G4 |
| 1 | 0R | -R0603 | RGND1 |
| 1 | 100k | -R0805 | R2 |
| 1 | 100k | MADW__vishay_534_pot | RV2 |
| 1 | 100k | MADW__trimmer_pot_horizontal | RV1 |
| 1 | 10k-0.1% | R5 | R7 |
| 1 | 300R | -R0603 | RLED1 |
| 1 | 30k-0.1% | R5 | R6 |
| 1 | 9V_battery | MADW__9V_battery_with_clip | BT1 |
| 1 | HEATSINK | MADW__heatsink-TO220-94x45x30_2_m-holes | HS1 |
| 1 | LED | -CHIPLED_0805 | D1 |
| 1 | LM2904 | -SO08 | U2 |
| 1 | MBR1045 | MADW__TO220_V | DS1 |
| 1 | REMOTE | MADW__SIL-4 | P1 |
| 1 | REMOTE_CTRL | MADW__SIL-3 | JP1 |
| 1 | SWITCH_INV | MADW__pcb_side_switch | SW1 |
| 1 | TS2940 | SOT223 | U1 |
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Questions
How big is the YauDL PCB?
It measures 100 × 100 mm and has 2 copper layers, 1.6 mm thick.
What parts does the YauDL use?
49 parts, built around the LM2904, BZX84C5V6, IRL3803S and MBR1045. 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 YauDL KiCad files?
From the madworm/YauDL repository on GitHub, at the commit this page was made from: the board is YauDL.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the YauDL design in my own project?
Its repository states no licence, so its author keeps all rights: ask madworm before reusing the design.