Here's a simple dual opto-isolator driver for an N-channel MOSFET on the high side of the load. A very simple bootstrap circuit (capacitor/diode) provides a gate voltage twice that of the load power supply. Opto-isolators are PC817C.
By Julian
Youtuber, shed dweller, solar charge controller aficionado
could you please draw the schematic of this circuit ?
counter clockwise????????
Yes, I can hear it now on playback – sounds higher than 976Hz though, must be all the harmonics.
I could hear that, 'twas loudest just as the bulb started to be visible.
Good point – I'll measure the transient response and upload a part 3 video.
Have you measured the rise/fall-times of this circuit? Afair standard opto isolators are somewhat slow when switching which could drive the mosfet into linar operation lowering its efficiency
ok. Thank you for the response. I was lost there for a sec
MPPT solar charge controller – ultimately
What exactly are you making again?