2 layers35.1 × 44.5 mm
2 layers31 × 46.2 mm
Pwmcontroller
bagdades/pwmcontrollerThis repository contains the hardware design files (for use with KiCad) that will create a PWM controller board.
- Size
- 31 × 46.2 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 17
- Nets
- 15
- Pads
- 56
- Tracks, vias
- 141, 0
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 15 Sep 2019
- Updated
- 15 Sep 2019
Overview
Pwmcontroller is an open-source printed circuit board by bagdades, from the bagdades/pwmcontroller repository on GitHub. It is a 2-layer board of 31 × 46.2 mm with 17 parts on 15 nets, routed with 141 tracks and 0 vias.
It is built around the 74AHC1G14GV and NE555. Its parts include 6 capacitors, 3 ICs, 3 connectors, 2 resistors and 2 diodes.
Main components
2
74AHC1G14GV
SOT-23-5-40℃~+125℃ 1 1 1.2V~2.2V、1.75V~3.15V、2.15V~3.85V 16.3ns@3.3V,15pF 2V~5.5V 40uA 74AHC 8mA 8mA 900mV~1.9V、1.35V~2.75V、1.65V~3.35V SOT-23-5 Logic Gates ROHSTECH PUBLICLogic Gates
NE555
SOP-8-20℃~+70℃ 1 1.5mA 200mA 4.5V~15V Adjustable duty cycle oscillation、Reset function、Duty cycle stabilization SOP-8 555 Timers / Counters ROHSGRTimers / Counters
README
README.rstPWM Controller
This repository contains the hardware design files (for use with KiCad) that will create a PWM controller board. The intent here is to plug this in between a motherboard 4-pin fan header and a powered fan splitter, like the Silverstone CPF04 or Swiftech 8W-PWM-SPL-ST. The pwm signal is generated by the 555 timer on the board and adjusted with the on pcb potentiometer, 12v fan power from the motherboard is used solely for the DC/DC converter and 555 timer. No power pins are connected on the output fan header.
A write up documenting this project's development can be found here:
https://blog.kortar.org/?p=437
.. image:: https://raw.githubusercontent.com/mtreinish/pwmcontroller/master/pwmcontroller.png
Parts
17| Qty | Value | Footprint | References |
|---|---|---|---|
| 2 | .1uF | Capacitor_SMD:C_0805_2012Metric | C4, C6 |
| 2 | 1N4148 | Diode_SMD:D_SOD-123 | D1, D2 |
| 2 | CONN_01X04 | Connector_Molex:Molex_KK-254_AE-6410-04A_1x04_P2.54mm_Vertical | J1, J2 |
| 1 | .01uF | Capacitor_SMD:C_0805_2012Metric | C1 |
| 1 | .33uF | Capacitor_THT:CP_Radial_D5.0mm_P2.50mm | C5 |
| 1 | 100k | Potentiometer_THT:Potentiometer_Alpha_RD901F-40-00D_Single_Vertical_CircularHoles | RV1 |
| 1 | 10uF | Capacitor_THT:CP_Radial_D5.0mm_P2.50mm | C3 |
| 1 | 1K | Resistor_SMD:R_0805_2012Metric | R1 |
| 1 | 4.7K | Resistor_SMD:R_0805_2012Metric | R2 |
| 1 | 470pF | Capacitor_SMD:C_0805_2012Metric | C2 |
| 1 | 74AHC1G14 | Package_TO_SOT_SMD:SOT-23-5 | U3 |
| 1 | Conn_01x02_Male | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J3 |
| 1 | MC78L05_SO8 | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U1 |
| 1 | NE555 | Package_DIP:DIP-8_W7.62mm | U2 |
Questions
How big is the Pwmcontroller PCB?
It measures 31 × 46.2 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Pwmcontroller use?
17 parts, built around the 74AHC1G14GV and NE555. 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 Pwmcontroller KiCad files?
From the bagdades/pwmcontroller repository on GitHub, at the commit this page was made from: the board is pwmcontroller.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Pwmcontroller design in my own project?
Its repository states no licence, so its author keeps all rights: ask bagdades before reusing the design.
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