HardLabs

Chb inverter

feaksel·chb-inverter·hardware/single-bridge-v4/kicad/CHB_INVERTER.kicad_pcb

Chb inverter PCB layout, top view — open source board by feaksel

About the Chb inverter PCB

Chb inverter is an open source PCB design by feaksel, published on GitHub under the Apache-2.0 license. It is a 2-layer board measuring 209.6 × 120.7 mm, with 95 components from 36 distinct parts.

Other key parts include the TLP250, L78L05, MCP3201, 6N137#2 and 6N137#1. By type, the board carries 35 resistors, 26 capacitors, 11 ICs, 10 diodes, 8 connectors and 4 transistors.

It belongs with the test & measurement designs in this gallery.

From the project

5-Level Cascaded H-Bridge Inverter (ELE 401/402 graduation project, Hacettepe University EEE) — modular CHB topology, STM32 F303RE firmware, PySide6 dashboard. Hardware fabricated and bench-validated.

The PCB module that was fabricated, populated, and demonstrated. Two identical instances are cascaded to form the 5-level inverter.

- bom.csv — fully populated BOM with Turkish supplier links. - pick-and-place.csv — produced by KiCad. - stackup.md — 4-layer stack details and the design rationale.

Main components on the Chb inverter

TLP250L78L05MCP32016N137#26N137#16N137#3ACS712xLCTR-20A

Chb inverter bill of materials (BOM)

95 components, 36 distinct parts — part numbers from the project's BOM.

QtyPartRefs
4
TLP250
U1, U2, U3, U4
1
L78L05
U9
2
MCP3201
U10, U20
1
6N137#2
U11
1
6N137#1
U12
1
6N137#3
U13
1
ACS712xLCTR-20A
U19
4
Q_NMOS_GDS
Q1, Q2, Q3, Q4
5
Screw_Terminal_01x02
J1, J5, J6, J7, J9
1
Conn_01x20_Pin
J2
2
B0515S
J3, J4
1
Fuse
F1
1
1N5408
D1
1
LED
D2
5
LED
D3, D7, D8, D9, D10
1
D_TVS
D4
2
D
D5, D6
16
100nF
C1, C5, C8, C10, C13, C25, C26, C27 +8
1
1uF
C2
1
1000uF
C4
Show 16 more
QtyPartRefs
3
10uF
C6, C11, C45
4
2.2nF
C7, C9, C12, C14
1
100uF
C28
1
22k
R1
1
100k
R2
7
220
R3, R7, R11, R15, R41, R43, R48
4
22
R4, R8, R12, R16
4
10K
R5, R9, R13, R17
4
22
R6, R10, R14, R18
5
1k
R19, R20, R21, R22, R55
1
330
R23
2
1
R35, R36
1
100k
R39
1
5.1k
R40
3
4.7k
R42, R44, R50
1
1.5k
R56

Chb inverter design files

The KiCad project lives in the feaksel/chb-inverter repository on GitHub; these links point at the commit this page was built from.

Chb inverter: common questions

How big is the Chb inverter PCB?

The Chb inverter measures 209.6 × 120.7 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Chb inverter?

95 components, from 36 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 Chb inverter design files?

From the feaksel/chb-inverter 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 Chb inverter design in my own project?

Yes, under the terms of its Apache-2.0 license, which feaksel chose for the repository.

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