HardLabs

Wireless Power Primary Side

sofiamonty·toothbrush-charger-pcb·wireless-power-primary/wireless-power-primary.kicad_pcb

Wireless Power Primary Side PCB layout, top view — open source board by sofiamonty

About the Wireless Power Primary Side PCB

Wireless Power Primary Side is an open source PCB design by sofiamonty, published on GitHub. It is a 2-layer board measuring 66 × 26 mm, with 19 components from 13 distinct parts.

Other key parts include the NA555P and IR2302. By type, the board carries 7 capacitors, 3 connectors, 3 resistors, 2 ICs, 2 transistors and 1 switch.

It belongs with the power & battery, iot & wireless and test & measurement designs in this gallery.

From the project

Two-board wireless charging system modeled on an electric toothbrush; custom PCBs designed in KiCad with inductive coupling for power transfer.

A two-board wireless power transfer system modelled on an electric toothbrush charger, designed as part of a group university project.

The system consists of two custom PCBs communicating through inductive coupling: a primary board acting as the charger base, and a secondary board acting as the battery pack receiver. Component values were calculated individually for the specific power transfer requirements rather than taken directly from a reference design.

Main components on the Wireless Power Primary Side

NA555PIR2302

Wireless Power Primary Side bill of materials (BOM)

19 components, 13 distinct parts.

QtyPartRefs
1
NA555P
U1
1
IR2302
U2
2
IRFZ44N
Q1, Q2
3
282834-2
J1, J2, J3
1
EG1218
S1
1
1N5819
D1
1
10nF
C1
1
1nF
C2
3
0.1uF
C3, C4, C5
1
UKL1H0R1KDDANA
C6
1
MKS4C033302C00KSSD
C7
2
1kΩ
R1, R3
1
10kΩ
R2

Wireless Power Primary Side design files

The KiCad project lives in the sofiamonty/toothbrush-charger-pcb repository on GitHub; these links point at the commit this page was built from.

Wireless Power Primary Side: common questions

How big is the Wireless Power Primary Side PCB?

The Wireless Power Primary Side measures 66 × 26 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Wireless Power Primary Side?

19 components, from 13 distinct parts. The full bill of materials is listed on this page.

Where can I download the Wireless Power Primary Side design files?

From the sofiamonty/toothbrush-charger-pcb repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Wireless Power Primary Side design in my own project?

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

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