[Lutz] needed a converter that could boost 5 V to 30 V to power a string ... By measuring the output voltage and adjusting the duty cycle accordingly, the circuit can regulate to a specified ...

Turning the boost converter on and off to achieve PWM dimming means the capacitor will have to be charged and discharged every PWM dimming cycle. This increases the rise and fall times of the LED ...

The MT3608 is a popular boost converter, able to easily step up DC voltages in useful ranges, at an incredibly low cost. Modules can be sourced from eBay for less than $2, built on a PCB ...