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300W 13.56MHz Class-D RF Power Amplifier

Vickyrrrrrr·ClassD_RF_PA_300W_13p56MHz·kicad/rf_pa_300w.kicad_pcb

300W 13.56MHz Class-D RF Power Amplifier PCB layout, top view — open source board by Vickyrrrrrr

About the 300W 13.56MHz Class-D RF Power Amplifier PCB

300W 13.56MHz Class-D RF Power Amplifier is an open source PCB design by Vickyrrrrrr, published on GitHub. It is a 2-layer board measuring 80 × 50 mm, with 21 components from 17 distinct parts.

Other key parts include the IR2181S. By type, the board carries 6 capacitors, 4 connectors, 3 diodes, 3 resistors, 2 transistors and 2 inductors.

It belongs with the audio designs in this gallery.

From the project

For hackerfab lithography machine RF plasma source.

For hackerfab lithography machine RF plasma source.

A 300W, 13.56MHz Class-D RF power amplifier based on the El-Hamamsy half-bridge topology. Designed and simulated in Cadence Spectre (305W output, 83.7% efficiency), then translated to a KiCAD 10 PCB project for fabrication.

See docs/kicadbuildreport.md for detailed results.

The amplifier was simulated in Cadence Spectre 14.1 using a real IRF540 Level-3 SPICE model with bootstrap gate drive:

Main components on the 300W 13.56MHz Class-D RF Power Amplifier

IR2181S

300W 13.56MHz Class-D RF Power Amplifier bill of materials (BOM)

21 components, 17 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
IR2181S
U1
2
IRF540
Q1, Q2
1
Vdd 72.5V
J1
1
SMA 50ohm
J2
1
VCC 12V
J3
1
PWM IN
J4
1
UF4007
D1
2
1N5819
D2, D3
1
300nH
L1
1
130nH
L2
1
100uF
C1
2
0.1uF
C2, C3
1
220nF
C4
1
470pF
C5
1
1nF
C6
2
2.2
R1, R2
1
2.55
R3

300W 13.56MHz Class-D RF Power Amplifier design files

The KiCad project lives in the Vickyrrrrrr/ClassD_RF_PA_300W_13p56MHz repository on GitHub; these links point at the commit this page was built from.

300W 13.56MHz Class-D RF Power Amplifier: common questions

How big is the 300W 13.56MHz Class-D RF Power Amplifier PCB?

The 300W 13.56MHz Class-D RF Power Amplifier measures 80 × 50 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the 300W 13.56MHz Class-D RF Power Amplifier?

21 components, from 17 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 300W 13.56MHz Class-D RF Power Amplifier design files?

From the Vickyrrrrrr/ClassD_RF_PA_300W_13p56MHz 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 300W 13.56MHz Class-D RF Power Amplifier design in my own project?

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

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