AEG Mosfet - Simple Basic MOSFET DIY

[jomarx]

MOSFET installation for our AUG (or any AEG)

Caution: Basic soldering skills are required. Mahirap nang magkamali. mahirap maghanap ng MOSFET :D
Hndi ako ang nag design nito, I had many references (a bit later).

Parts Needed:
IRF1503 MOSFET (IRF/IRL 1404 is also recommended)
100 Ohms resistor
30k Ohms resistor
Silicon wire

Schematics:
http://www.filehive.com/files/0206/13.jpg

PCB Design: (kung gsto nyo lang. pde rin hndi :D)
http://www.filehive.com/files/0206/14.jpg

Stock Wiring Schematics:
http://www.airsoftmechanics.com/images/articles/mosfet1/schematic_stock.jpg

MOSFET Wiring Schematic
http://www.airsoftmechanics.com/images/articles/mosfet1/schematic_final.jpg

AUG Original Wiring:
http://i285.photobucket.com/albums/ll44/jomarx2/moto_0133.jpg

Installation:
1. Create the mosfet kit as shown.
http://i285.photobucket.com/albums/ll44/jomarx2/mosfet.jpg
2. Solder the 30k resistor onto the gate (m1) and source (m3) pin of the MOSFET.
3. Solder the 100 ohms resistor to the gate pin (m1).
http://i285.photobucket.com/albums/ll44/jomarx2/moto_0133-1.jpg
4. Desolder wire #1 (connected to the + terminal of the motor) from point 2 and solder it to point no 1.
5. Cut wire # 2 (- terminal of motor) and connect it (using silicon wire) to drain pin (m2).
6. Connect m1 (the one with a 100ohm resistor) to point # 2.
7. Connect the other end of wire # 2 (from the - battery) to the source pin (m3).
8. Check all connections!
http://i285.photobucket.com/albums/ll44/jomarx2/moto_0134.jpg
9. You have successfully installed a MOSFET kit! CONGRATULATIONS! :D, you'll never have burned contacts ever again! (and slightly increased ROF!)

P.S. You can also remove the fuse to further increase ROF, but its a bit risky! DO AT YOUR OWN RISK! ;) :D :cool:

References:
Airsoft Mechanics (http://www.airsoftmechanics.com/home/content/view/23/30/1/0/)
ACM Airsoft (http://acmairsoft.com/index.php?topic=61.0)
Japanese orginal site (http://www.interq.or.jp/tokyo/akishino/factory/FET%20SWD/fetseisaku/fet%20seis.htm)

Sir Shredder for the inspiration (you've told me about mosfets a LONG LONG time ago. :D)

This is the most basic design, ideal for those with low FPS setups (and have space problems, since it can be wired inside the gbox). The SW-S tutorial will soon follow. :icon_smile:
Original post is located here (http://www.filairsoft.com/forum/member.php?u=14110)

[CLYVZ]

Hi Jomarx- Niceee eto yung unang ginawa ko at naging haligi ng aking pagkahilig sa mosfet! salamat uli ng marami!

[jomarx]

Actually kulang nga ung info eh, naging basehan ko din ung post ni 9th sa ACM Davao.

Dahil sa knila, nahilig ako sa mosfets :icon_biggrin:

OT: 2,800th post!

[dencio1976]

sir, tanong lang regarding mosfet versus a standard transistor.

parehas lang ba function nito which is used as a switch with the exception that the mosfet is noise resistant?

bale yung gate(mosfet) would act as the base(transistor) tapos yung source - drain would be the emitter - collector?

i like the design for it's simplicity and that medyo iniisip ko pa kung ganun ka-responsive ang active brake kasi ok yung active brake kung immedietely magstop yung motor pag nasa relaxed position na yung spring. kasi nung gumamit na ko ng lipoly ang hirap na hulihin ng relax position ng spring para hindi lumambot e.

[jomarx]

MOSFET (Metal Oxide Semiconductor Field Effect Transistor) is a transistor. And yes, it performs the same function.

Active breaking will IMMEDIATELY stop your motor when you release the trigger, thus preventing overspin and compression of the spring. :)

[Rage]

Selling IRL1404Z, got 100 pcs.

[MarXX]

dagdag ko lumang schematic diagram ko from the older FAS....
http://img.photobucket.com/albums/v383/marxx/Switch.jpg
http://img.photobucket.com/albums/v383/marxx/Image035.jpg
http://img.photobucket.com/albums/v383/marxx/Image036.jpg

[jomarx]

Thanks for the additional pics sir MarXX. :)

[Mangtas]

Ano ang manufacturing number ng mosfet????

[MarXX]

na tested ko na:
sup75no6 - 75a mosfet (heats up considerably)
irf 1404 - 200a mosfet. (hardly heats up)

[jomarx]

I have a IRF1503 based mosfet kit, its almost 1 year old and still fighting! :icon_biggrin:

But most of my mosfets are IRL1404z-based, soon it will be different. :icon_cool:

[kismet]

just installed this basic mosfet in my P90... nawala yung sparks.. yahoo..:icon_biggrin:..tnx tnx... sunod siguro yung ab na mosfet..

[jomarx]

Glad it helped you :)

A successful DIY project feels great when it works. :icon_biggrin:

[kismet]

sana kaya pa yung ab mosfet diy mo..hehe.. kaso ala talaga time..

[jomarx]

Time? for sourcing the parts? PCB? If you can do electronics, I have a solution for that. :)

[kismet]

Time? for sourcing the parts? PCB? If you can do electronics, I have a solution for that. :)

sir pm mo nalang yung solution sakin..hehe..tnx:icon_smile:

[king_pin]

just installed my mosfet sw-evo im :icon_smile: satisfied and amaze, na amaze din yung nag install :icon_smile: tnx sir jom :icon_smile: by the way pwedi ba yon sw-evo sa sp160 spring and stock jg motor? :icon_smile:

[jomarx]

@ sir king_pin - Glad you liked it sir, as long as the right gear ratio is used (ITU), its ok, and dont use MAGNUM, you'll burn it. :)

[gr82nyt]

Mga SIrs...Cno pde orderan ng Mosfet dito sa FAS?At pde ko na rin malaman kung magkano?Salamat!

[kurakotsakubet]

madaling gawin kya lang mahirap hanapin... simple maganda and maliit ang problem ang hirap hanapin ng pyesa. san po ba makakabili kc nalibot ko na buong quiapo at novaliches wala ako mabilan eh. pwede kaya ung sa board ng power supply pra sa cpu ng computer? nag babalak kc ako gumawa nun eh. ahehehe sana wag sumabog

[jomarx]

@ sir gr82nyt - YGPM

@ sir kurakotsakubet - Depending on the stats of that mosfet, it may or may not explode... IRL1404 is the best bet when it comes to mosfet.

[kickingfish]

nice one sir thnks...

[9th]

dagdag ko lang mosfet replacement:
IRF1404
IRF2804
IRF3703
IRL3713
IRF1503 --- eto ang pinaka da best na mosfet, buhay pa ang binigay sa akin ni brosarge 3years ago.

Still I am using basic circuit dahil walang makuhang parts dito.
http://www.imageurlhost.com/images/56sadv1s7v5voog424f1.jpg
Looking forward to use more advance circuit from sir jomarx soon.

Old OneAirsoftDavao Mosfet Thread:
http://acmdavao.proboards44.com/index.cgi?board=teketeke&action=display&thread=200&page=1
I can't retrieved some images anymore dahil nakalimutan ko magback up. kaya deleted na ang ibang post.

Rgds,
-jojo

[jomarx]

@ sir 9th - thanks for the list! Will sure help those who wants to DIY. :)

[kismet]

dagdag ko lang mosfet replacement:
IRF1404
IRF2804
IRF3703
IRL3713
IRF1503 --- eto ang pinaka da best na mosfet, buhay pa ang binigay sa akin ni brosarge 3years ago.


yun nga din yung una kung hinanap sa raon kaso wala eh..