HardLabs

LP SC

monicaespinosa·ConVacuumSystem·Platine/Neue_Pumpe/Final_PCB/aux_platinen/LP_SC_PCB/LP_SC_PCB.kicad_pcb

LP SC PCB layout, top view — open source board by monicaespinosa
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About the LP SC PCB

LP SC is an open source PCB design by monicaespinosa, published on GitHub. It is a 2-layer board measuring 28.5 × 45 mm, with 95 components from 15 distinct parts.

By type, the board carries 58 resistors, 28 capacitors, 6 ICs and 3 connectors.

From the project

This is a project done at EST-RUB. Here is the control and interface of a vacuum system using a Pfeiffer turbo pump plus a backing pump

The setup still has to be simulated to find out V_c and to check the accuracy of the voltages selected for the grid and the plate.

Initially were the following voltages set: VS 6.4 V VC: 6.4 V VG= 400 V VP= 1000 V

The result for the obtained trajectory is shown below. The obtained current was around 5 mA.

However, the shape of the electron beams seems to change its shape in a very drastic way. Making the VC smaller (more negative) should help concentring more the electrons to the center of the beam. A second simulation was made sweeping the voltage of the WehneltCylinider between -10 V and…

LP SC, from the project README
From the project README

LP SC bill of materials (BOM)

95 components, 15 distinct parts — part numbers from the project's BOM.

QtyPartRefs
3
~
U1, U2, U3
1
~
U4
2
~
U8, U12
1
CONN_01X12
Conn_01x12
J1
1
CONN_01X02
Conn_01x02
J10
1
Conn_01x14
J14
18
100P
100p
C1, C2, C3, C4, C5, C6, C7, C8 +10
2
100N
100n
C20, C21
2
10U
10u
C22, C23
4
0.1UF
0.1uF
C30, C34, C36, C40
2
10N
10n
C45, C49
20
1k
R1, R2, R7, R8, R9, R10, R19, R20 +12
18
100K
100k
R3, R4, R11, R12, R13, R14, R25, R26 +10
18
252K
252k
R5, R6, R15, R16, R17, R18, R31, R32 +10
2
12.5
281
R58, R62

LP SC design files

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

LP SC: common questions

How big is the LP SC PCB?

The LP SC measures 28.5 × 45 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the LP SC?

95 components, from 15 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 LP SC design files?

From the monicaespinosa/ConVacuumSystem 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 LP SC design in my own project?

The repository has no license, so all rights stay with monicaespinosa. Use it as a reference, and ask the author before reusing the design.

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