16 MOSFET Shift Register Controller (74HC595) For Sale Now
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- Опубліковано 4 жов 2024
- Are you tired of having financial security? Give me your money.
Purchase it here: www.tindie.com...
Schematic for the board: easyeda.com/cm...
My site: www.calebmarti...
I have not gotten a notification for your videos in a long time. Glad to see you are still making videos. Do you know what happened to KSP Designer's channel?
I'm not sure but looks like it disappeared. RIP
@@CalebMarting F
Great board! does anyone know if I can still buy something like this somewhere?
Nice work! Have you actually tested this board with 3.3v VCC? I'd recommend a 74HCT595 for 3.3v logic (the HC version works at 3.3v but then also only outputs 3.3v) and still power it from 5V so the MOSFETS are still driven by 5V. The MOSFETS you use are (I think?) not "logic level" ones and not rated for 3.3V VGS operation. They will probably still work, but with lower current and higher resistance. Probably not an issue with this application, but by choosing slightly different MOSFETS you can get 10A+ per channel out of them. I'm currently designing something similar and planning to use IRLR8726.
One thing I'm not sure of yet, is if I can drive 8 MOSFETS at the same time with one HC595. I'd really like to also drive some 0805 LED's with the output pins, they can be pretty dim, just to see what's switched. But I'm unsure if I can sufficiently so that with ~10mA current without additional BJT's, which I'd like to avoid.
I only ever ran it with 5 volts so it should have been fine. I ran all the outputs simultaneously just fine, mosfets are voltage-based so as long as you have a sufficient resistor to limit current surge I think you should be fine
I was halfway through designing basically exactly this in kicad (need to independently control 12-16 solenoids). It looks like your ebay is out of stock, though. Am I seeing correctly that you have some updates in easyeda? How did you assemble or purchase the boards? (I'm new to this)
I would be very interested to get any updates or make a purchase.
You can go to the actual schematic on easy EDA and purchase it from JLC PCB fully assembled. You can get 10 boards for a pretty cheap price or like two free even cheaper. I have some prototype boards but they have a few issues that haven't worked out yet
@@CalebMarting Very nice -- I'd definitely buy these direct from you (with a decent markup) if you started selling these again. I've got a few projects in mind where these would be useful and I'd rather focus on the software than reinvent the wheel with shift registers and mosfets. I can't imagine I'm the only person in that situation.
Sounds good, I'm looking into getting them made again
@@CalebMarting Great! Subscribed for updates!
www.tindie.com/products/calebmarting/mosfet-shift-register-driver-board/
Here you go! I'm making a quick video for it too