Well done. This is exactly what i'm doing at this moment. I build my own retro computer where the 8 bit MCU and the Video system share the same Memory (address and data bus) based on a delayed clock. By the way I follow all your videos I would like to see a video how to create negative voltage for an OP AMP from one +12V DC power supply. Maybe it's easy but i'm a absolute beginner in electronic. DJ
I should do a video on that definitely. But one thing you might try is putting a two-resistor voltage divider right after the power supply, and then treat the "middle" as your circuit ground, so that gives you a positive and negative end. The trouble with that is the "middle" voltage will change based on parallel resistance with the voltage-divider resistors. It would work if you can make sure your resistance (real or effective) doesn't vary much, and then figure out what resistors to put in the divider. Or if you can fit an isolation transformer in there, you could "create" a new power supply from that which you can just hook up backwards for negative voltage.
"While the delay was sittin' on the low, eating a sandwich." 😂😂😂
Great lecture. Very clearly understood. Thanks a lot
Hey mate, I hope you're well. I notice your last video was 2 years ago. These are solid videos thank you.
Lol, thanks, I don't know why I didn't think of this solution, maybe I shouldn't skip chapters involving edge triggering
It’s fun to watch! Keep going!
So clearly! Thanks sir!
Well done. This is exactly what i'm doing at this moment.
I build my own retro computer where the 8 bit MCU and the Video system
share the same Memory (address and data bus) based on a delayed clock.
By the way I follow all your videos I would like to see a video how to create negative voltage for an OP AMP from one +12V DC power supply.
Maybe it's easy but i'm a absolute beginner in electronic.
DJ
I should do a video on that definitely. But one thing you might try is putting a two-resistor voltage divider right after the power supply, and then treat the "middle" as your circuit ground, so that gives you a positive and negative end. The trouble with that is the "middle" voltage will change based on parallel resistance with the voltage-divider resistors. It would work if you can make sure your resistance (real or effective) doesn't vary much, and then figure out what resistors to put in the divider. Or if you can fit an isolation transformer in there, you could "create" a new power supply from that which you can just hook up backwards for negative voltage.
Very nice!
Hello sir,
What is the other way?
Where is that better circuit?
Thank you!