Parallel Boost Converter

269

03:31:08

Using multiple boost converters in parallel allows for a smaller voltage ripple. As you can see its only 70mV once settled. With the output voltage maintained at 18.5V driving a 10 ohm load.

A transistor inverter is used to make the 180 degree phase shift of the sqaure wave, to calculate the phase of the driving signal for more boost converters its just 360/n, where n is the number of converters is parallel. A 3 phase boost converter would have all drivers out of phase by 120 degrees, speaking of which does anyone know of simple ways to shift phases by an arbitrary amount?

published 10 months ago

Ermannocit

10 months ago

Cool! I would use RC elements (+ amplifiers) to get the phase shift you need for a generic multiphase.

ETJAKEOC

10 months ago

This is basically exactly how VRM's on a PC work, phase separation, so that one VRM takes the load while the other charges

Moh1972

10 months ago

Using Counter And Some Logic Gates You Can Form Any collection of signals. Please See https://everycircuit.com/circuit/6269727760187392

BraydanD

10 months ago

Thank you all for the suggestions, i'll muck around with some RC filters and high gain amps. I dont have many digital IC's so I dont have much experience with all that but I might give it a go.

TheObserver

9 months ago

Thanks for sharing this design. It inspired me to come up with this circuit design. It's similar but operates very differently, somewhere between a stungun and a plasma discharge. https://everycircuit.com/circuit/4924687062794240

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