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A simple printed circuit board with an unusual board outline shape. Includes a IRFZ44N MOSFET, 10M ohm resistor, DuPont header and a fuse holder.
Any questions about JLCPCB or ordering, pls email support @jlcpcb.com
A simple printed circuit board with an unusual board outline shape. Includes a IRFZ44N MOSFET, 10M ohm resistor, DuPont header and a fuse holder.
i like your super computer lol
I guess the rubber band is more suited for dampening lower frequencies
Ok, I’ll ask. Why are the terminal spacings at a multiple of 1 inch? We’ve been taught metric at school since the 70s 😐
Great little PCB.
The cutting of the MOSFET legs was harder than usual because you were cutting the thicker part of the legs that usually sit up out of the board and not the thinner part that you normally solder.
Please fit the 10k, the lack of it may have been behind the previous MOSFET failure.
I feel like the band damped it a little but the oscillation frequency is so high it barely makes a difference. Could you try hotmelt or CA glue to dampen it?
Please…for the sake of your younger viewers, please choose a switching frequency of 20kHz🙏
Still wisteling like crazy
Interesting, did JLC not complain about the cut pads at all? I heard they'd reject your design if their analysis tool detected something was wrong – in this case the cut holes with without selecting the castellated holes option. Does that option just affect whether they plate the edges? If that's the case I can understand the cost.
the only annoying thing with JLCPCB is waiting for all your parts to be in stock before processing with order , and almost always at least 1 part missing in inventory , really wish we could que our boards as part preorders
Have you noticed that when you pay on jlcpcb the payment processor is tictoc
If you follow the Production Progress on JLCPCB, you would know that drilling the holes is indeed the second step in manufacturing 🙂 (after MI, whatever that is). Copper Deposition is step 3 and Profiling, V-cut scoring is step 10.
I just had them drill 52,000 holes in one of my projects 😀
Wouldn't it be better to have the openings for the binding posts on one side of the PCB, so you can just slide it on straight from one side? The openings wouldn't need to be that large, which means you'd have more contact surface, and I would think it'd be easier to slide them on and off the posts.
There's a great Android app called "Spectroid" that I can recommend for detecting noise you can and can't hear. It's basically just a FFT audio scope on your phone.
I had to increase the frequency of PWM signal when applied to relays, from 5 KHz to 25 KHz. Then my children couldn't detect the sound. BTW, a 50% duty cycle applied to relay coils reduces current significantly.
15KHz is defo there xD
"Of course I have no way of knowing what the rating of my fuse is!" Surely yes, Julian, wire tables. Most hookup and other stranded wire seems to conform to various standard specs – quel surprise – so standard wire tables should give you the fusing current to as near as might really concern you. But, I know that you knew that anyhouw, so I've been had 😉
It's not often that we get to have a look through your glasses either . . .
Im liking Mr Ilett´s videos – Since I cant get enough of them :thumbs up:
That PCB could be used to open a beer bottle 🙂