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I believe some modders are using the ego board from FT for that 5x click on/off function.
I have two mods that will be really difficult to use n-channel. Can either of these be used? I need to use this type if possible. I could parallel two if need be
I even clicked in here looking for davids post on the charge pump firing the fet didn't even see it ..It is really cool...
Why do some have neg numbers such as this one?
So I gave up and just went with the trusty 3034. How could you incorporate a on/off switch to shut off power so it wont fire? Where could it be placed so that it doesn't get the current flow from the batteries? Its a simple duel 26650 box with a 3034 n-channel but it will be driven hard
Nice pcb Cannot beat adding in an ego board it will eliminate your on/off sw and give ya shutdown...Already know they are highly efficient and will keep at ~4.2v until 3.5ish maybe longer since minimal load..Only a buck too lol.. Put some pins on it place it one ur pcb easy cheesy..IMO best thing since sliced bread for our mods..http://www.fasttech.com/product/2137901Check out discussions and that 1A charge board I really want one of those
Is there is simple minimal component solution for low voltage cutoff (~3v) that could be added?
I was planning on laying solder on top of the high current traces.
Very Cool! Can you make me one?
He says as many as you like lolhttps://oshpark.com/shared_projects/TbLFzpbzThanks DavidWhat fet are you using? I tried typing in the numbers on em but no luck..Duh' found it, very thorough helps us there lolhttps://uk.mouser.com/ProjectManager/ProjectDetail.aspx?AccessID=20a3a44206
So he owns OSH or just rents there?
That would be sweet if he did own it maybe IDK. Hook us up Davids I see lots of projexts No you can buy 3 for $4.80; or you were serious asking for a freebie? if so, me too, send me one too. I didn't know if you did not see you can buy it at bottom of page, internet post seems as if ya didn't see that..
Break will clean the dbl posts up if he sees this, it has happened before, his forum is broken, someone must have loaded the best ejuice recipe in history of juice making.. -------------------------Its on the bottom of the page left side, "Order Now" but first register an account.heres the link for both Register page:https://oshpark.com/users/sign_upBuy TriParaMos v1.0:https://oshpark.com/shared_projects/TbLFzpbz/order
Question, can I use other N chan mosfets on this board?
That's a common footprint for MOSFETs. It's based on a SO-8 layout. Lots of SMD MOSFETs use it. It goes by different names by different makers. Vishay calls it PowerPAK SO-8, Ti calls it VSON-8. Basically if you can fit an SO-8 package the leadless versions will fit as well.The one he's selected is a good one, though if you plan to run down to 3V input, you're taking it right to the edge of the gate-source voltage versus on-state resistance curve. For better performance at minimal input voltages you may want to select a transistor with a curve a little more to the left.
Hey fsors thanks for being interested in the mosfet board. Best of luck getting everything assembled and working once you get the boards.IRL3103STRL is a different package D2PAK/TO-263 it's larger and won't fit on the pads for the mosfets. Also, RDS ON is fairly high. I would use a mosfet with RDS ON of 2 milliohms or less.
I would use a mosfet with RDS ON of 2 milliohms or less.
With a soldering station by hand. Hakko 888D with the stock chisel tip. Had it around 650F (maybe lower) most of the time. Bumped up to around 700F by some of the thicker traces. I watched a few video on youtube about hand soldering surface mount components. Basically, I got a bit of solder on the tip of the iron then tinned one pad for a component. Then applied flux (I used chip-quik smd291) to all of the pads for a part. Placed the part with tweezers, aligned as needed. Used a toothpick to keep the in place, then soldered the tab to the pad that was tinned. With the part tacked in place, carefully solder the remaining tabs or pins.
Need help on this selection of MOSFET.. I know you have listed a ti fet b4³ but its buried somewhere.. http://www.ti.com/lit/ds/symlink/csd13202q2.pdfAlso on the ego boards using, they are usually pwm so using a cap/res as a low pass filter to keep the the MOSFET open what would be a good shot in the dark without a scope to use as a cap and resistor.. Im searching for a calculator after I type this I know it's probably one out here lol.. Im guessing 33.3hz like every other board out of China at that time then.. Im gonna try it.