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PCB design

A project log for Open source expansion cloud chamber

Visualizes tracks of ionizing particles

M. BindhammerM. Bindhammer 05/28/2016 at 13:280 Comments

First vision of the high voltage and laser power supply PCB:

I didn't add ground planes due to the high voltage.

Blank PCB:

Populated PCB:

BOM:

QTY.

REF.

DESCRIBTION

2

C1, C2

Electrolytic capacitor, 10μF, 63V, lead space 2.5mm

1

C3

Ceramic capacitor, 1μF, 16V, ±10%, 0805

1

C4

Electrolytic capacitor, 33μF, 63V, lead space 2.5mm

1

C5

Ceramic capacitor, 10nF, 16V, ±10%, 0805

1

C6

Ceramic capacitor, 100nF, 16V, ±10%, 0805

1

C7

Ceramic capacitor, 10nF, 16V, ±10%, 0805

5

C8, C9, C10, C11, C12

Ceramic capacitor, 100nF, 1000V, ±10%, 2220

5

D1, D2, D3, D4, D5

SM4007, DO-213AB

1

/

DC power jack, PJ-202A

1

IC1

Timer NE 555 D SMD, SO-8

2

/

PCB mount screw terminal, 2 pins, lead space 3.5mm

2

/

PCB toggle switch, 5236AB, lead space 4.7mm

1

Q1

N-FET BUZ71, TO-220

1

R1

Resistor 12kΩ, 1%, 0.125W, 0805

1

R2

Resistor 4.7kΩ, 1%, 0.125, 0805

1

T1

PCB transformer, 6V/230V, 1VA

1

U1

800mA low-dropout linear regulator LM1117MPX-5.0, SOT-223

1

U2

1A low dropout regulator for 5V to 3.3V conversion LM3940IMP-3.3, SOT-223

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