2 layers68 × 34.8 mm Linear, the printed circuit board in 3D

Linear

40W 40.68MHz Class E RF amplifier using a MRF101AN LDMOS Device

Size: 68 × 34.8 mm
Copper layers: 2
Thickness: 1.6 mm
Parts: 28
Nets: 11
Pads: 84
Tracks, vias: 0, 145
Pours: 18
Routed: Not yet
KiCad: KiCad 5 (file 20171130)
Created: 29 Oct 2019
Updated: 11 Apr 2023

Overview

Linear is an open-source printed circuit board by westonb, from the westonb/Plasma-Driver repository on GitHub. It is a 2-layer board of 68 × 34.8 mm with 28 parts on 11 nets.

Its parts include 14 capacitors, 7 connectors, 4 inductors, 1 resistor and 1 transistor.

README

README.md

Plasma-Driver

A 40W 40.68MHz Class E RF amplifier using a MRF101AN LDMOS Device. The amplifer accepts a 40.68MHz square wave logic level input. A 5V power supply is required for the driver and a DC input of 38V is required to acheive a 40W output.

PCB

The PCB directory contains the kicad PCB files for the class E design and for a linear amplifier based on the 40.68MHz refrence design provided in the MRF101AN datasheet

Schematic

The schematics directory contains a PDF schematic of the design

Simulation

The simulation directory contains a LTSpice simulation of the amplifier using a model of the MRF101AN derived from the datasheet and in-circuit testing

Picture

Image of Prototype

Parts

Qty	Value	Footprint	References
5	1n	Capacitor_SMD:C_0805_2012Metric	C2007, C2008, C2012, C2013, C2014
3	mounting-hole-grounded	wbraun_smd:M3-tight-fit-socket-head	J1001, J1002, J1003
2	10n	Capacitor_SMD:C_0805_2012Metric	C2004, C2006
2	1u	Capacitor_SMD:C_0805_2012Metric	C2003, C2005
2	200p	Capacitor_SMD:C_0805_2012Metric	C2002, C2010
2	82p	Capacitor_SMD:C_0805_2012Metric	C2001, C2011
2	Conn_01x02_Female	wbraun_smd:Terminal-block-plug_2x1_3.5mm-pitch	J2003, J2004
2	Conn_Coaxial	wbraun_smd:SMA-Edge	J2001, J2002
1	110n	wbraun_smd:2222SQ-111	L2004
1	150n	Inductor_SMD:L_0805_2012Metric	L2001
1	160n	wbraun_smd:2222SQ-161	L2002
1	17.5n	wbraun_smd:GA3095-AL	L2003
1	2743019447	wbraun_smd:2743019447	FB2001
1	33p	Capacitor_SMD:C_0805_2012Metric	C2009
1	75	Resistor_SMD:R_0805_2012Metric	R2001
1	Q_NMOS_GSD	Package_TO_SOT_THT:TO-220-3_Vertical	Q2001

Questions

How big is the Linear PCB?

It measures 68 × 34.8 mm and has 2 copper layers, 1.6 mm thick.

What parts does the Linear use?

28 parts. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.

Where can I download the Linear KiCad files?

From the westonb/Plasma-Driver repository on GitHub, at the commit this page was made from: the board is pcb/linear/linear.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.

Can I use the Linear design in my own project?

Its repository states no licence, so its author keeps all rights: ask westonb before reusing the design.

Project files

Show this board on your page

A live frame, for any web page

<iframe src="https://pcbkit.io/embed/boards/westonb-plasma-driver-linear" title="Linear in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe>

A picture

<img src="https://pcbkit.io/embed/boards/westonb-plasma-driver-linear.jpg" alt="Linear" width="1200" height="900">

A picture that opens the board, for a README

[![Linear](https://pcbkit.io/embed/boards/westonb-plasma-driver-linear.jpg?size=s)](https://pcbkit.io/boards/westonb-plasma-driver-linear)

Source

Repository: westonb/Plasma-Driver
Board file: pcb/linear/linear.kicad_pcb
Commit: f20c5ff
Licence: Not stated

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