DB-pulser v3
About the DB-pulser v3 PCB
DB-pulser v3 is an open source PCB design by echopen, published on GitHub. It is a 2-layer board measuring 47 × 52.1 mm, with 17 components from 12 distinct parts.
Other key parts include the LM555N and TC6320. By type, the board carries 7 connectors, 5 capacitors, 2 ICs, 2 diodes and 1 resistor.
From the project
If the cable connecting the transducer to the pulse is too long, one might have loop effect. This can be avoid with impedance adaptation, we are currently working on that.
If the cable connecting the transducer to the pulse is too long, one might have loop effect. This can be avoid with impedance adaptation, we are currently working on that.
-100V input is connected to P2 or P6 (angled socket and SMA connector respectively). Connector P4, P5, P7 and P8 are used to plugged the transducer and to connect with DB-trswitchtgc.
A small 47 ohms resistors had to be add to have the pulse, it don't work without it.
Main components on the DB-pulser v3
DB-pulser v3 bill of materials (BOM)
17 components, 12 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | LM555N MCP14A0154 TI | MSOP-8 | U1 |
| 1 | TC6320 | SOIC-8 | U2 |
| 1 | CONN_01X19 Molex | Header_pin_angled_1x19 | P1 |
| 1 | CONN_01X02 SMA Molex | SMA | P2 |
| 3 | CONN_01X02 Johnson / Cinch Connectivity Solutions | Socket_1x02 | P3, P6, P7 |
| 2 | SMA | SMA | P4, P5 |
| 2 | 1N4148 1n4148 Fairchild Semiconductor | D_TH_common | D1, D2 |
| 1 | 10N 100n Vishay | C_small_TH_echopen | C1 |
| 1 | 47N 1u Vishay | CP_small_TH_echopen | C2 |
| 1 | 47U 10u (250V) Nichicon | CP_small_TH_echopen | C3 |
| 2 | 4.7U 100n Nichicon | C_small_TH_echopen | C4, C5 |
| 1 | 2.2K 47 KOA speer | Resistor_TH_common | R1 |
DB-pulser v3 design files
The KiCad project lives in the echopen/PRJ-medtec_kit repository on GitHub; these links point at the commit this page was built from.
DB-pulser v3: common questions
How big is the DB-pulser v3 PCB?
The DB-pulser v3 measures 47 × 52.1 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the DB-pulser v3?
17 components, from 12 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 DB-pulser v3 design files?
From the echopen/PRJ-medtec_kit repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.
Can I use the DB-pulser v3 design in my own project?
The repository has no license, so all rights stay with echopen. Use it as a reference, and ask the author before reusing the design.
More boards in PRJ-medtec_kit
Goblin
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DB-tr switch tgc v1 2
63.5 × 52.1 mm57 parts2LNo license19
DB-supply v1
54.6 × 52.1 mm29 parts2LNo license19
Tobo
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Test
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DB-motor control v3
64.8 × 52.1 mm19 parts2LNo license19
DB-motor control v3 old
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PCB
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DB-envelope detector v2
26.7 × 52.1 mm11 parts2LNo license19
DB-high voltage v2
35.6 × 52.1 mm6 parts2LNo license19
DB-filter v1
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Earlier revisions in the repo: DB-pulser_v2, DB-pulser_v1