Pulse PWM Timer
About the Pulse PWM Timer PCB
Pulse PWM Timer is an open source PCB design by synthesissolutions, published on GitHub. It is a 4-layer board measuring 27.9 × 43.2 mm, with 51 components from 20 distinct parts.
Other key parts include the C19631717, C105643, C2970927 and C575551. By type, the board carries 25 capacitors, 17 resistors, 4 ICs, 1 transistor, 1 connector and 1 fuse.
Main components on the Pulse PWM Timer
Pulse PWM Timer bill of materials (BOM)
51 components, 20 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | C19631717 MAX809R | SOT-23 | U1 |
| 1 | C105643 NE555PWR | TSSOP-8_4.4x3mm_P0.65mm | U2 |
| 1 | C2970927 LM393QT | DFN-8-1EP_2x2mm_P0.5mm_EP0.9x1.6mm | U3 |
| 1 | C575551 DRV8876PWPR | HTSSOP-16-1EP_4.4x5mm_P0.65mm_EP3.4x5mm_Mask2.46x2.31mm | U4 |
| 1 | C10487 SI2301CDS-T1-GE3 | SOT-23 | Q1 |
| 1 | Load | JST_XH_B2B-XH-A_1x02_P2.50mm_Vertical | J3 |
| 1 | C22374902 1.5A | Fuse_1210_3225Metric | F2 |
| 2 | C128558 500k | Potentiometer_Bourns_TC33X_Vertical | RV1, RV2 |
| 11 | C307331 100nF | C_0402_1005Metric | C1, C2, C3, C5, C9, C12, C16, C19 +3 |
| 5 | C15195 10nF | C_0402_1005Metric | C4, C10, C11, C17, C20 |
| 2 | C45783 22uF | C_0805_2012Metric | C6, C14 |
| 3 | C52923 1uF | C_0402_1005Metric | C7, C8, C15 |
| 1 | C96446 10uF | C_0603_1608Metric | C13 |
| 2 | C1532 22nF | C_0402_1005Metric | C18, C22 |
| 1 | C3001213 47uF | CP_Elec_6.3x5.4 | C24 |
| 2 | C11702 1k | R_0402_1005Metric | R1, R17 |
| 8 | C25741 100k | R_0402_1005Metric | R2, R3, R4, R5, R6, R7, R8, R10 |
| 5 | C25744 10k | R_0402_1005Metric | R9, R11, R12, R13, R14 |
| 1 | C25765 20k | R_0402_1005Metric | R15 |
| 1 | C25771 27k | R_0402_1005Metric | R16 |
Pulse PWM Timer design files
The KiCad project lives in the synthesissolutions/geeksforkids repository on GitHub; these links point at the commit this page was built from.
Pulse PWM Timer: common questions
How big is the Pulse PWM Timer PCB?
The Pulse PWM Timer measures 27.9 × 43.2 mm, has 4 copper layers and is 1.6 mm thick.
How many components are on the Pulse PWM Timer?
51 components, from 20 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 Pulse PWM Timer design files?
From the synthesissolutions/geeksforkids repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.
Can I use the Pulse PWM Timer design in my own project?
The repository has no license, so all rights stay with synthesissolutions. Use it as a reference, and ask the author before reusing the design.
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