2 layers68 × 34.8 mm
Linear
westonb/Plasma-Driver
40W 40.68MHz Class E RF amplifier using a MRF101AN LDMOS Device
28 parts13
2 layers68 × 34.8 mm
Class E
westonb/Plasma-Driver1340W 40.68MHz Class E RF amplifier using a MRF101AN LDMOS Device
- Size
- 68 × 34.8 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 43
- Nets
- 17
- Pads
- 118
- Tracks, vias
- 61, 63
- Pours
- 20
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 29 Oct 2019
- Updated
- 11 Apr 2023
Overview
Class E 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 43 parts on 17 nets, routed with 61 tracks and 63 vias.
It is built around the LMG1020YFF and MRF101AN. Its parts include 21 capacitors, 7 resistors, 7 connectors, 4 inductors and 1 IC.
Main components
2
LMG1020YFF
DSBGA-6-40℃~+125℃ 1 1.1V~1.8V 1.7V~2.6V 2.5ns 2.6ns 350ps 375ps 4.75V~5.4V 5A 75uA 7A Low Side MOSFET Under Voltage Protection、Overtemperature protection (OTP) DSBGA-6 Gate Drivers ROHSTexas InstrumentsGate Drivers
MRF101AN
TO-220-3-40℃~+175℃ -6V、10V 0.96pF 1 N-channel 115W 133V 149pF 2.2V 43.4pF N-Channel Standalone TO-220-3 MOSFETs ROHSNXP SemiconductorsMOSFETs
README
README.mdPlasma-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
Parts
43| Qty | Value | Footprint | References |
|---|---|---|---|
| 3 | 0.1u | Capacitor_SMD:C_0805_2012Metric | C2004, C2007, C2015 |
| 3 | 0.1u | Capacitor_SMD:C_0402_1005Metric | C2001, C2006, C2009 |
| 3 | 1u | Capacitor_SMD:C_0805_2012Metric | C2002, C2003, C2005 |
| 3 | 47p | Capacitor_SMD:C_0805_2012Metric | C2012, C2018, C2021 |
| 3 | mounting-hole-grounded | wbraun_smd:M3-tight-fit-socket-head | J1001, J1002, J1003 |
| 2 | 150p | Capacitor_SMD:C_0805_2012Metric | C2016, C2017 |
| 2 | 270 | Resistor_SMD:R_0402_1005Metric | R2005, R2006 |
| 2 | 82p | Capacitor_SMD:C_0805_2012Metric | C2019, C2020 |
| 2 | Conn_01x02_Female | wbraun_smd:Terminal-block-plug_2x1_3.5mm-pitch | J2002, J2003 |
| 2 | Conn_Coaxial | wbraun_smd:SMA-Edge | J2001, J2004 |
| 2 | DNP | Capacitor_SMD:C_0805_2012Metric | C2008, C2011 |
| 2 | FILTER | Inductor_SMD:L_0805_2012Metric | FB2001, FB2002 |
| 1 | 1 | Resistor_SMD:R_0402_1005Metric | R2003 |
| 1 | 100 | Resistor_SMD:R_0805_2012Metric | R2002 |
| 1 | 100n | Inductor_SMD:L_0805_2012Metric | L2001 |
| 1 | 160n | wbraun_smd:2222SQ-161 | L2004 |
| 1 | 1n | Capacitor_SMD:C_0402_1005Metric | C2010 |
| 1 | 1n | Capacitor_SMD:C_0805_2012Metric | C2013 |
| 1 | 50 | Resistor_SMD:R_0805_2012Metric | R2001 |
| 1 | 500n | wbraun_smd:2929SQ-501 | L2003 |
| 1 | 56p | Capacitor_SMD:C_0805_2012Metric | C2014 |
| 1 | 75 | Resistor_SMD:R_1206_3216Metric | R2008 |
| 1 | DNP | Resistor_SMD:R_0402_1005Metric | R2004 |
| 1 | DNP | Inductor_SMD:L_0805_2012Metric | L2002 |
| 1 | LMG1020 | wbraun_smd:WLCSP-6 | U2001 |
| 1 | MRF101AN | Package_TO_SOT_THT:TO-220-3_Vertical | Q2001 |
Questions
How big is the Class E PCB?
It measures 68 × 34.8 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Class E use?
43 parts, built around the LMG1020YFF and MRF101AN. 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 Class E KiCad files?
From the westonb/Plasma-Driver repository on GitHub, at the commit this page was made from: the board is pcb/Class-E/Class-E.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Class E design in my own project?
Its repository states no licence, so its author keeps all rights: ask westonb before reusing the design.
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