From Transport Evolved.

Last time it looked like Kate’s open inverter board had developed a serious problem during its multiple years on the desk in the garage. After a brief hiatus to lick her wounds, Kate made it back out there to spend some time working on it.

Talking through the process of some (very) basic fault finding, Kate identified the problem and then has the exciting task of testing the High Voltage circuits and connecting the motor… Join Kate as she gets (slightly) closer to a functioning inverter.

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*⏱️ Episode Timeline*

00:00 – Introduction
02:14 – Fault finding
04:00 – The fault!
04:24 – How not to go about making a ribbon cable
05:51 – Testing the inverter / open inverter board a different way
06:47 – First power up with inverter connected
07:01 – Hitting the current limiter, again.
07:52 – What happens if we provide the Yaris inverter with 12V as well…
08:53 – Okay, so now we need a ‘high-voltage supply’
11:10 – Charging the capacitors?
12:31 – Conclusion
16:55 – Thanks for Watching!

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*🔗 Links*

Open Inverter FOC tuning – https://www.youtube.com/watch?v=tirDQJ6iH28

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*👥 Today’s Sponsors*
🌱 Electric Vehicle Association – https://www.myeva.org
⚡ EnergySage – https://www.kqzyfj.com/click-101290941-16952262

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*🎙️ Credits:*

Host: Kate Walton-Elliott
Camera, Edit, Color: Kate Walton-Elliott & Vi Horton
Art & Animation: Kate Walton-Elliott Erin Carlie
Producer: Nikki Gordon-Bloomfield
Music: via Artlist.io
© Transport Evolved LLC, 2025

💬 Should Kate just replace this open inverter board with a replacement one? Or should she just replace the daughter board?

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