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WPT RX

mark-belbin·simple-wireless-power·hardware/WPT_RX/WPT_RX.kicad_pcb

WPT RX PCB layout, top view — open source board by mark-belbin
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About the WPT RX PCB

WPT RX is an open source PCB design by mark-belbin, published on GitHub under the GPL-3.0 license. It is a 4-layer board measuring 100 × 45 mm, with 51 components from 31 distinct parts.

Other key parts include the INA240A1D and LM2937IMP-3.3. By type, the board carries 14 resistors, 13 capacitors, 8 connectors, 8 test points, 5 diodes and 2 ICs.

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

From the project

A simple two-board wireless power system that can transmit up to 100W at close distances. Originally designed as a small part of a subsea resident autonomous underwater vehicle senior design project. Included are schematics, PCB design files, LTspice simulations, and embedded code.

However, since a lot of work was already being placed into research and simulation anyways, it was decided to try and create a resonant system. Using capactiors, resonant circuits can be created with the inductive transmitter and reciever coils, increasing efficiency accross the wireless link. This is the de facto inductive wireless power transfer method used in industry, and it turned out to be simpler than thought. The topology chosen is called "series-series" resonant inductive wireless power transfer, which means that the compensating capacitors are placed in series with both the transmit…

WPT RX, from the project README
From the project README

Main components on the WPT RX

INA240A1DLM2937IMP-3.3

WPT RX bill of materials (BOM)

51 components, 31 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
INA240A1D
LMC6032
U1
1
LM2937IMP-3.3
INA240D
U2
1
448-IAUC70N08S5N074ATMA1
NMOS
Q1
2
CONN_01X01
Conn_01x01
J1, J2
3
WM17068
SMA
J3, J4, J5
1
CONN_02X05_ODD_EVEN
Conn_01x01
J6
1
CONN_01X03
Conn_01x01
J7
1
CONN_01X04
From PI Board
J8
8
TestPoint
TP1, TP2, TP3, TP4, TP5, TP6, TP7, TP8
1
160-1423-1
FSV12100V
D1
1
160-1413-1
FSV12100V
D2
2
160-1579-1
FSV12100V
D3, D4
1
475-1415-1
RED
D5
3
0.1U
0.1u
C1, C2, C9
3
0.1U
100n
C3, C4, C5
1
10U
100n
C6
2
10U
0.1u
C7, C8
2
22P
330u
C10, C12
1
0.1U
330u
C11
1
22P
0.1u
C13
Show 11 more
QtyPartRefs
1
11.5k
R1
1
79.6K
9.09k
R2
1
10K
18.0k
R3
1
330
2.0k
R4
1
79.6K
10k
R5
1
680
0.4k
R6
2
10K
10k
R7, R10
1
0.005
0.4k
R8
2
10R
R9, R14
1
10K
5m
R11
2
10K
10R
R12, R13

WPT RX design files

The KiCad project lives in the mark-belbin/simple-wireless-power repository on GitHub; these links point at the commit this page was built from.

WPT RX: common questions

How big is the WPT RX PCB?

The WPT RX measures 100 × 45 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the WPT RX?

51 components, from 31 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 WPT RX design files?

From the mark-belbin/simple-wireless-power repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.

Can I use the WPT RX design in my own project?

Yes, under the terms of its GPL-3.0 license, which mark-belbin chose for the repository.

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