Homeyjojo Posted January 27, 2012 Report Share Posted January 27, 2012 Is this mosfet AB? If it is it wont work in my gun, so i just want to make sure. Link to post Share on other sites
Tommygunn Posted January 27, 2012 Report Share Posted January 27, 2012 What are you refering to? A single post, or the whole topic? Tom. Link to post Share on other sites
Homeyjojo Posted January 27, 2012 Report Share Posted January 27, 2012 Whoops thought i posted a link 1 sec... Link to post Share on other sites
Homeyjojo Posted January 27, 2012 Report Share Posted January 27, 2012 http://www.amazon.com/gp/aw/d/B005TLSM7I/ref=mp_s_a_1?qid=1327665840&sr=8-1 Link to post Share on other sites
Tommygunn Posted January 27, 2012 Report Share Posted January 27, 2012 Wouldn't it be better to contact the seller, since the info is so poor. Tom. Link to post Share on other sites
LordElpus Posted January 27, 2012 Report Share Posted January 27, 2012 Is this mosfet AB? If it is it wont work in my gun, so i just want to make sure. No it isn't. It's a simple trigger mosfet, no "active breaking" Link to post Share on other sites
zachattack Posted February 1, 2012 Report Share Posted February 1, 2012 I have a quick question. I'm going to make myself an AB mosfet, and after reading this thread, and other ones, I think I understand how they work and more or less what specs are needed. My question involves the p-channel mosfet. Will a irf4905 work? I think it will, but since it hasn't been mentioned specifically in this thread I'd like to have someone who has done this before confirm that it will work. Data sheet http://www.irf.com/product-info/datasheets/data/irf4905.pdf Link to post Share on other sites
Zombie00 Posted February 1, 2012 Report Share Posted February 1, 2012 A little question here. How impossible would it be to install an AWS Stealth V2 in a V3 Gearbox (Ak)? I know AWS is supposed to be working a version specially made for V3 GBs, but I haven't heard much about it in a while. Link to post Share on other sites
Forti Posted February 23, 2012 Report Share Posted February 23, 2012 If I was to get one of those plug and play mosfets for my g36 and connect it up so it goes battery > mosfet > gearbox, would that balance out losing the fuse? I don't want to screw up my trigger contacts. Link to post Share on other sites
Tommygunn Posted February 23, 2012 Report Share Posted February 23, 2012 Are you talking about getting a ready made ensemble with an electronic fuse so allowing you to remove the more traditional burning type fuse? Tom. Link to post Share on other sites
Forti Posted February 23, 2012 Report Share Posted February 23, 2012 I was meaning something like this I got a new gas block for my g36 that lacks the inbuilt fuse and wiring, so rather than run a gun without a fuse I thought I'd put something in between Link to post Share on other sites
Tommygunn Posted February 23, 2012 Report Share Posted February 23, 2012 Yeah, but, do you want no fuses at all, an electronic fuse incorporated into the ready built mosfet unit or a basic mosfet with a separate traditional fuse? Tom. Link to post Share on other sites
Forti Posted February 23, 2012 Report Share Posted February 23, 2012 Currently looking at just not having a fuse, though if there's a mosfet with one built in that would be convenient. Link to post Share on other sites
Tommygunn Posted February 23, 2012 Report Share Posted February 23, 2012 Personally I run a basic, big numbers Mosfet and a separate blade fuse. I would not use an electronic fuse and I would always use a traditional fuse. Why do you not want to have a separate fuse? I can't imagine it is for space reasons as you must have loads internal space compared to us M4 users. Tom. Link to post Share on other sites
Forti Posted February 24, 2012 Report Share Posted February 24, 2012 Mainly cos I can't transplant the fuse from my old one, but I suppose a new one wouldn't run too expensive. Link to post Share on other sites
Tommygunn Posted February 24, 2012 Report Share Posted February 24, 2012 Just buy a fuse holder and a bunch of fuses from your local diy/auto factors and solder it into the circuit, no sweat. It'll be about £1.50 for everything. Tom. Link to post Share on other sites
Docv400 Posted March 9, 2012 Report Share Posted March 9, 2012 OK. A quick query for the more electronically-minded (more than me, not too difficult) among us. I'm wiring up an A&K M60 with a simple switching MOSFET, with the Box-Mag running off the trigger circuit. Without the Mag plugged in, everything's fine, as soon as I plug it in however, and activate the micro-switch, the gearbox runs constantly even with the switch released. The MOSFET is then 'closed' permanently, i.e. 'ON' (read 'knackered'). This is the circuit I've made. It's obviously the way the mag is wired in that's causing the problem, but how do I rectify it? I'm thinking maybe I need a Diode in the circuit somewhere, if so, where? There are some connectors in the circuit, to make gearbox removal easier, I've omitted them for clarity as they don't affect the basic layout. Thanks. Link to post Share on other sites
Docv400 Posted March 9, 2012 Report Share Posted March 9, 2012 I've got an ICS M4 that I'm planning on building a MOSFET for but if there's an issue with ICS's I'd sooner save my money! Can anyone else confirm or deny whether or not this is the case with ICS rifles? If it's all good then I have a project to keep me busy for a bit This may be a bit late, not checked this thread for ages... I've had a simple switching MOSFET in my ICS M4 for years, it works fine. The gun is approx 6 years old. Unless ICS have done something to their electrics in later/recent AEGs, I can't think why a MOSFET wouldn't work in them. If they have the 'usual' trigger contact set-up, then a 'FET will work. Link to post Share on other sites
Tommygunn Posted March 9, 2012 Report Share Posted March 9, 2012 Doc, By micro switch are you refering to 'TS' or to a separate switch on the mag for the drive motor? Also, by gearbox are you refering to the AEG gearbox or that of the mag? By 'closed permanently' do you mean that even when you release the switch the gearbox keeps running as if the Mosfet has fused or something? Is the motor of the mag not able to handle the full Voltage of battery? Could you not wire it in parallel with the motor? Tom. Link to post Share on other sites
Docv400 Posted March 9, 2012 Report Share Posted March 9, 2012 Sorry... TS = micro-switch (trigger switch). The mag switch is set to 'continuum' (their spelling). With the original wiring set-up, that selection means the mag runs only when the trigger switch is activated. Gearbox is the AEG gearbox/motor. The MOSFET is 'fused', the AEG gearbox cycles with the switch released. The box-mag motor runs off the main battery as standard, I'm testing with a 7.2v pack, the owner was running with a 9.6v pack. The box-mag motor is wired in parallel with the AEG motor I've not shown it in the schematic, but the 'FET has a 100ohm Gate-Source resistor. Edit; Actually, I think I've just seen what you mean about the mag being in parallel with the motor. You mean connect the -ve mag wire to the 'Drain' line, instead of the 'source' one? Link to post Share on other sites
DarkLite Posted March 9, 2012 Report Share Posted March 9, 2012 Yes. You should have the magazine driver in parallel with the motor, so both +ve and -ve terminals are on the same line. Link to post Share on other sites
Tommygunn Posted March 9, 2012 Report Share Posted March 9, 2012 Doc, As Darklite has said, by parallel, I mean as if the mag motor was directly attached the AEG motor. Edit: Edit; Actually, I think I've just seen what you mean about the mag being in parallel with the motor.You mean connect the -ve mag wire to the 'Drain' line, instead of the 'source' one? Yep, exactly that. Tom. Link to post Share on other sites
Docv400 Posted March 9, 2012 Report Share Posted March 9, 2012 Cheers guys. I think I was trying to look too 'deep' for the problem, when it was just a simple fix all along. Having been awake for over 22 hours didn't really help either Edit; Right! That's 'FET nr. 3 in the bin Obviously not looking deep enough. 26 hours and counting... Link to post Share on other sites
Docv400 Posted March 12, 2012 Report Share Posted March 12, 2012 Sorted! Tried a few different layouts, ended up with this (thanks to my Brother-in-Law the Electronics genius)... The 100 Ohm resistor was there already, the 23k one was added, as was the Diode (1 Amp, Silicone). Link to post Share on other sites
bjorn Posted April 8, 2012 Report Share Posted April 8, 2012 Long story short - what are the most popular FET chips at the moment for a simple 1 chip mosfet withpout AB? I havent built one for a while, last time there were the IRL1404, but I am sure that there is something better on the market by now? Link to post Share on other sites
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