2 layers124.5 × 63.5 mm
2 layers
PWMGenerator bpham5
Bao2108/PCB-PROJECT- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 30
- Nets
- 19
- Pads
- 84
- Tracks, vias
- 36, 6
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 9 Dec 2025
- Updated
- 16 Dec 2025
Overview
PWMGenerator bpham5 is an open-source printed circuit board by Bao2108, from the Bao2108/PCB-PROJECT repository on GitHub. It is a 2-layer board with 30 parts on 19 nets, routed with 36 tracks and 6 vias.
It is built around the LM339, NANOSMDC016F-2 and SFH 4550. Its parts include 11 resistors, 6 diodes, 4 transistors, 3 capacitors and 2 ICs.
Main components
3
LM339
SOP-140℃~+70℃ 1.1mA 1.5mV 150ns 2.3nA 2V~32V 32V 57nA DTL、TTL、CMOS Four channels Open Collector SOP-14 Comparators ROHSJSMSEMIComparators
NANOSMDC016F-2
12061.1Ω 1.6mm 10A 160mA 3.2mm 300ms 450mA 48V 500mW 5Ω 1206 Resettable Fuses ROHSLittelfuseResettable Fuses
SFH 4550
插件,D=5.7mm-40℃~+100℃ 1.5V 1100mW/sr@IF=100mA 860nm 插件,D=5.7mm Infrared LED Emitters ROHSOSRAM Opto SemiconInfrared LED Emitters
Parts
30| Qty | Value | Footprint | References |
|---|---|---|---|
| 5 | 1N4005 | Diode_SMD:D_0805_2012Metric | D1, D2, D3, D4, D6 |
| 2 | 2.2k | Resistor_SMD:R_0805_2012Metric | R1, R7 |
| 2 | 2N3904 | Package_TO_SOT_SMD:SOT-23 | Q1, Q2 |
| 2 | 2N3906 | Package_TO_SOT_SMD:SOT-23 | Q3, Q4 |
| 1 | 0.1uF | Capacitor_SMD:C_0805_2012Metric | C3 |
| 1 | 10k | Resistor_SMD:R_0805_2012Metric | R4 |
| 1 | 10uF | Capacitor_THT:CP_Radial_D4.0mm_P2.00mm | C2 |
| 1 | 180 | Resistor_SMD:R_0805_2012Metric | R10 |
| 1 | 1M | Resistor_SMD:R_0805_2012Metric | R2 |
| 1 | 220k | Resistor_SMD:R_0805_2012Metric | R5 |
| 1 | 220uF | Capacitor_THT:CP_Radial_D4.0mm_P2.00mm | C1 |
| 1 | 22k | Resistor_SMD:R_0805_2012Metric | R6 |
| 1 | 330 | Resistor_SMD:R_0805_2012Metric | R3 |
| 1 | 390k | Resistor_SMD:R_0805_2012Metric | R8 |
| 1 | 8.2k | Resistor_SMD:R_0805_2012Metric | R9 |
| 1 | Barrel_Jack | Connector_BarrelJack:BarrelJack_CUI_PJ-063AH_Horizontal | J2 |
| 1 | Conn_01x03 | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J1 |
| 1 | LM339 | Package_SO:SOIC-14_3.9x8.7mm_P1.27mm | U2 |
| 1 | LM7805_TO220 | Package_TO_SOT_THT:TO-220-3_Horizontal_TabDown | U1 |
| 1 | NANOSMDC016F-2 | NANOSMDC016F_2:RESC3115X65N | R11 |
| 1 | R_Potentiometer_US | Potentiometer_THT:Potentiometer_ACP_CA9-V10_Vertical_Hole | RV1 |
| 1 | SFH4550 | LED_THT:LED_D5.0mm_IRGrey | D5 |
| 1 | SW_SPST | Button_Switch_SMD:SW_DIP_SPSTx01_Slide_6.7x4.1mm_W6.73mm_P2.54mm_LowProfile_JPin | SW1 |
Questions
What parts does the PWMGenerator bpham5 use?
30 parts, built around the LM339, NANOSMDC016F-2 and SFH 4550. 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 PWMGenerator bpham5 KiCad files?
From the Bao2108/PCB-PROJECT repository on GitHub, at the commit this page was made from: the board is PWMGenerator_bpham5/PWMGenerator_bpham5.kicad_pcb and its schematic PWMGenerator_bpham5 - Copy/PWMGenerator_bpham5.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the PWMGenerator bpham5 design in my own project?
Its repository states no licence, so its author keeps all rights: ask Bao2108 before reusing the design.
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