Category: 60V 50A 3-Phase Driver

Buck Converter working

Soldered up a new board just to realize that DRV8301 was bust as well, so replaced DRV8301 and Buck converter is actually working. I am getting 3.4V just enouth for SPX3819 to give 3.2 out and the MCU ticks at 168Mhz. Looking at datasheet I also see that I have done correctlt – EN_BUCK should…

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Frequency Interference

Testing Thunderstick I started to notice strange behavior as I increased MCU frequency – in fact I am unable to tick the MCU above 84Mhz powered from the DRV8301 Buck Converter. This indicate that I have interference between the Buck Converter and the MCU on higher frequencies. To prove my case I powered the board…

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Thunderstick Annotated

I have a strong preference for making some doc I call “Annotated Schematics” as I start coding and making a project. This doc break up and explain the schematics, programming info etc and everything I basically need as a SW developer to get going. The annotation above is the 3D model annotated to show content…

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Assembled Thunderstick

The wires and caps are a bit tricky to get right. the cap should actually be the other way, but I need access to the SWD so had to bend it over the MOSFET’s. This mounting is not ideal, but it is working. It is a 2000uF 63V Electrolyte that is mounted. The only thing…

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