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  • Author Author: Jan Cumps
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The GaN BoosterPack Series: LMG5200 Evaluation Pack and Smart Instrument

Jan Cumps

This series of blogs describes the design of a GaN BoosterPack and its LabVIEW integration.

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The LMG5200 is a GaN Half Bridge that can manage 80V and 10A. This BoosterPack allows you to evaluate the performance of the device. You can change its operating parameters via software and via the on-board rotary encoder.

 

The GaN BoosterPack is designed to be used with a Hercules LaunchPad.

The LaunchPad delivers the complementary signals required to drive the LMG5200 GaN Half Bridge.

The project comes with firmware that allows you to change the driver signals to your needs.

You can change duty cycle, frequency, deadband from LabVIEW or other lab automation software that supports USB and SCPI.

There's stand-alone firmware that changes the duty cycle when you rotate the rotary encoder on the BoosterPack, if you prefer that.

 

All schematics, PCBs, BOM and source code is attached to the blog posts.

 

{gallery} GaN BoosterPack

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Hercules LaunchPad: proto setup

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LabVIEW: test SCPI firmware

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LabVIEW: Control software design

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Hercules LaunchPad: First tests with a modded LMG5200 evaluation module

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GaN BoosterPack: first schematic

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GaN BoosterPack: KiCad 3d viewer

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LMG5200: Layout Guidelines

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GaN BoosterPack: one of the evaluation kit (reference design) PCB layers

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GaN BoosterPack: KiCAD view of an internal PCB layer

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GaN BoosterPack: Custom KiCAD footprint for LMG5200

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GaN BoosterPack: Seeed Studio PCBs

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GaN BoosterPack: Device under test

 

Related Blogs

Hercules LaunchPad and GaN FETs - Part 1: Control Big Power with a Flimsy Mouse Scroll Wheel
Hercules LaunchPad and GaN FETs - Part 2: Make a BoosterPack
Hercules LaunchPad and GaN FETs - Part 3a: BoosterPack Layout - Reference Design
Hercules LaunchPad and GaN FETs - Part 3b: BoosterPack Layout - my version
Hercules LaunchPad and GaN FETs - Side Note A: BoosterPack Layout - Custom KiCad Parts
Hercules LaunchPad and GaN FETs - Side Note B: Look at the PCB
Rotary Encoders - Part 1: Electronics
Checking Out GaN Half-Bridge Power Stage: Texas Instruments LMG5200 - Part 1: Preview
Rotary Encoders - Part 4: Capturing Input on a Texas Instruments Hercules LaunchPad with eQEP
Vintage Turntable repair: Can I fix a Perpetuum Ebner from 1958 - part 4 - Hercules LaunchPad Enhanced PWM try-out

 

 

 

Related Blogs : Smart Instrument with SCPI

Create a Programmable Instrument with SCPI - Part 1: Parser Library
Create a Programmable Instrument with SCPI - Part 2: Serial over USB
Create a Programmable Instrument with SCPI - Part 3: First Conversation *IDN?
Create a Programmable Instrument with SCPI - Part 4: Error Handling by Default
Create a Programmable Instrument with SCPI - Part 5: First Hardware Commands
Create a Programmable Instrument with SCPI - Part 6: LabVIEW Integration
Create a Programmable Instrument with SCPI - Part 7: Talk to Hardware Registers
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