I've finally got round to drawing the circuit diagram for the DCOI MOSFET driver, so here it is with an explanation of how it works
By Julian
Youtuber, shed dweller, solar charge controller aficionado
Good morning all…
Youtuber, shed dweller, solar charge controller aficionado
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hello Julian. it has been a few years since this video was made. but I'm interested in possibly using it in a inverter project. to protect the micro controller. would it be beneficial in a H bridge. but my main concern is the max operating frequency of the optos. can they run well in the kHz range? with the slight delay of them turning on. I was thinking they maybe will work with a h bridge. to keep the high and low FETs from being having any overlap. or is it not enough time to ensure that? also with the Dcoi can't a h bridge also be ran with a single pwm signal?
If the uC input of the DCOI is open and the DCOI is powered, will this destroy the phototransistors inside or is 5V supply voltage over the 4 LEDs so low, that the transistors will not become conductive?
Hi Julian – Thanks for sum great videos, I am practically a beginner at electronic circuits, however I am interested in the dual complementary opto isolator for switching a 60v 30amp load to a battery bank from a wind turbine.
With using opts’s rated at 70v and multiply P channel mosfet all with a max gate voltage of +/-20v , I would need to reduce the voltage to the gate to say 16/18v using, say a voltage divider between the opto isolator and the gate on the mosfet.
My question – are my assumption correct, and would this still work?
Many thanks
Peter G Smith
You can also make hardware inversion by connecting top led on bottom opto-isolator led and bottom led on top opto-isolator
everytime wood pcb 😀
Would it be possible to use normal diodes instead of Red led's? Thanks and keep up the good work!
I like your little videos. I'm in to solar and wind and this would be great for projects.
Very nice! Thanks for explaining that and providing the ckt.
this will help me in some experiments I'm doing.