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HV Probe

MECSEM·electrical·HVDC/HV Probe/HV Probe.kicad_pcb

HV Probe PCB layout, top view — open source board by MECSEM

About the HV Probe PCB

HV Probe is an open source PCB design by MECSEM, published on GitHub under the GPL-3.0 license. It is a 4-layer board measuring 22 × 70 mm, with 27 components from 14 distinct parts.

Other key parts include the OPA928DR and TPS5430DDA. By type, the board carries 13 capacitors, 7 resistors, 4 diodes and 3 ICs.

It belongs with the power & battery designs in this gallery.

From the project

All the electrical designs for MECSEM.

KiCad sources for all the PCBs in the microscope.

This repository contains only the electrical design: schematics, PCB layouts, and KiCad symbol/footprint library.

A Linux Mint host PC inside the chassis (powered by the in-chassis PicoPSU) commands two central RP2350 controllers over USB:

HV Controller: the master optics-column controller. Drives source bias, lenses, deflectors, the scintillator detector, raster scan, and the PMT readout. Bridges the floating cathode side onto USB. LV Controller: the vacuum subsystem state machine: roughing pump, turbopump VFD (RS-485), isolation valve…

Main components on the HV Probe

OPA928DRTPS5430DDA

HV Probe bill of materials (BOM)

27 components, 14 distinct parts.

QtyPartRefs
1
OPA928DR
U1
2
TPS5430DDA
U18, U21
2
H12VND3B
hongjiacheng
D1, D2
2
SS54
D5, D7
2
22uF
Samsung Electro-Mechanics
C3, C4
2
100pF
Samsung Electro-Mechanics
C5, C6
1
47pF
Samsung Electro-Mechanics
C7
2
10nF
C59, C73
2
22uF
C60, C74
4
10uF
C61, C62, C71, C72
2
7.5kΩ
UNI-ROYAL(Uniroyal Elec)
R1, R3
2
1kΩ
UNI-ROYAL(Uniroyal Elec)
R2, R4
1
49.9Ω
UNI-ROYAL(Uniroyal Elec)
R5
2
1kΩ
UNI-ROYAL(Uniroyal Elec)
R8, R9

HV Probe design files

The KiCad project lives in the MECSEM/electrical repository on GitHub; these links point at the commit this page was built from.

HV Probe: common questions

How big is the HV Probe PCB?

The HV Probe measures 22 × 70 mm, has 4 copper layers and is 1.6062 mm thick.

How many components are on the HV Probe?

27 components, from 14 distinct parts. The full bill of materials is listed on this page.

Where can I download the HV Probe design files?

From the MECSEM/electrical repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the HV Probe design in my own project?

Yes, under the terms of its GPL-3.0 license, which MECSEM chose for the repository.

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