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I'm doing a little project with these LED filaments, but I want to power it all from 5 volts and the LED filaments need at least 45 volts to light up. I've made a small boost converter circuit on breadboard and I'm using an ESP32 to create the PWM signal and monitor the voltage.
There's a full research video below where I simulate the boost circuit in SPICE using KiCad and then wire it up to an ESP32 to provide the PWM signal and monitor the output voltage - I only killed one board - zapped it with 50v and it wasn't happy...
The circuit I've built is a pretty standard DC boost converter:
The Schematic
It works really well - even on breadboard - so I'll be using it in my next projects which will be a jumbo 7 segment display.
Driving a whole bunch of LED filaments
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I originally did a degree in Electronics, but I've been doing Software for all my career. I'm back into embedded now and loving it.
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