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Front Panel

janni0609·2-Channel-PreReg-Powersupply·hardware_front/Front Panel.kicad_pcb

Front Panel PCB layout, top view — open source board by janni0609

About the Front Panel PCB

Front Panel is an open source PCB design by janni0609, published on GitHub. It is a 4-layer board measuring 97.8 × 57.3 mm, with 42 components from 19 distinct parts.

Other key parts include the MCP23008T-E/SS. By type, the board carries 15 resistors, 7 switches, 6 diodes, 6 capacitors, 5 connectors and 1 IC.

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

From the project

A two-channel laboratory bench power supply, 0–36 V / 0–2 A per channel, fully isolated between channels. Each channel pairs a tracking switch-mode pre-regulator with a linear post-regulator, so it has the low output noise of a linear supply without the heat of dropping 36 V acro

A two-channel laboratory bench power supply, 0–36 V / 0–2 A per channel, fully isolated between channels. Each channel pairs a tracking switch-mode pre-regulator with a linear post-regulator, so it has the low output noise of a linear supply without the heat of dropping 36 V across a pass transistor.

Everything here is open: KiCad 10 schematics and layout for both boards, the firmware for all three microcontrollers, and the design calculations (loop stability, DC/DC dimensioning, ADC/DAC error budget) that back the component values.

Front Panel, from the project README
From the project README

Main components on the Front Panel

MCP23008T-E/SS

Front Panel bill of materials (BOM)

42 components, 19 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
MCP23008T-E/SS
U3
1
BSS138
Q401
1
OLED
J2
2
CONN_02X02_ODD_EVEN
Conn_02x02_Odd_Even
J3, J4
1
CONN_02X04_ODD_EVEN
Conn_02x04_Odd_Even
J5
1
CONN_01X04
Conn_01x04
J6
1
Buzzer
BZ401
6
SW_Push 18mm
SW1, SW2, SW3, SW4, SW5, SW8
1
RotaryEncoder_Switch_MP
SW7
4
LED_green
D1, D2, D3, D4
2
LED_red
D5, D6
2
10U
10u
C2, C6
1
C
C3
1
10N
10n
C4
2
100n
C5, C7
2
R
R7, R9
6
10K
10k
R8, R10, R12, R13, R14, R201
6
220
R15, R16, R17, R18, R19, R20
1
1k
R403

Front Panel design files

The KiCad project lives in the janni0609/2-Channel-PreReg-Powersupply repository on GitHub; these links point at the commit this page was built from.

Front Panel: common questions

How big is the Front Panel PCB?

The Front Panel measures 97.8 × 57.3 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the Front Panel?

42 components, from 19 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 Front Panel design files?

From the janni0609/2-Channel-PreReg-Powersupply 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 Front Panel design in my own project?

The repository has no license, so all rights stay with janni0609. Use it as a reference, and ask the author before reusing the design.

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