DC motor_N-channel MOSFET's_H-bridge

[speedy]

hi ....
Good to see no one came across any problems assembling it ... that's good .

speedy

[kbssa]

Hi all,

I have been searching an alternative to substitute the IRLZ44N and I found some.

IRL1104 http://www.irf.com/product-info/datashe ... rl1104.pdf
IRL3713 http://www.irf.com/product-info/datashe ... rl3713.pdf

Thanos, do you think that these guys will heat less than the IRLZ44N ?

I wanna do a test, with one of them, I think I will do with the IRL1104 cuz it's cheaper, but if it fry as IRLZ does I will do a air conditioning with a peltier module. If you don't know what I'm talking about, google it !!

What do you think guys !

I'm tired of changing burned mosfets !

[speedy]

I wanna do a test, with one of them, I think I will do with the IRL1104 cuz it's cheaper, but if it fry as IRLZ does I will do a air conditioning with a peltier module. If you don't know what I'm talking about, google it !!

What do you think guys !

I guess that IRL1104 is a great one "MOSFET, 40V 104A, 167W " with a VgsTH min = 1 volt ... or should I say a MONSTER .
BUT If you can find it cheaper than IRF3205 "V-MOS, 55V, 110A, 200W " with a VgsTH min =2 volt ... then you should use it directly ...

IRF3205.jpg (25.86 KiB) Viewed 4153 times

and one more thing ... I want you to calculate the wattage of your motor in the full load condition [starting / reversing ] that would help you know better about your heating problem ...
note : different factors are included into power calculation of a motor ... so don't take 200W per MOSFET as a reference of calculations .

regards ...

[kbssa]

I wanna do a test, with one of them, I think I will do with the IRL1104 cuz it's cheaper, but if it fry as IRLZ does I will do a air conditioning with a peltier module. If you don't know what I'm talking about, google it !!

What do you think guys !

I guess that IRL1104 is a great one "MOSFET, 40V 104A, 167W " with a VgsTH min = 1 volt ... or should I say a MONSTER .
BUT If you can find it cheaper than IRF3205 "V-MOS, 55V, 110A, 200W " with a VgsTH min =2 volt ... then you should use it directly ...

IRF3205.jpg

and one more thing ... I want you to calculate the wattage of your motor in the full load condition [starting / reversing ] that would help you know better about your heating problem ...
note : different factors are included into power calculation of a motor ... so don't take 200W per MOSFET as a reference of calculations .

regards ...

Thanks for answering man !

The IRF3205 is a non logic level mosfet, will it works with 5v Vgs ?

If yes, I think I will use it cuz it's cheaper here.

My motors are 12V, 10A max ,120W, I think that works with IRL1104 or IRF3205 cuz it support almost double of current that IRLZ44N supports, so I guess my HB will heat much less, considering that my motor will drain only 10% of current that IRL1104 supports, and I won't need of big heatsinks as I have now on my HB and it is still heating a lot !

[speedy]

Hi kbssa : ...
sure my friend the IRF3205 works very fine with 5v logical level ... as you can see my hole project is using it ...
BTW ... what kind of motor controller are you using ?
If you're using Tronic-h-bridge [P-channel /N-channel full H-bridge ]... then you'll find that after replacing the IRLz44n with IRF3205 ...
the heating up mosfets will be on the IRF4905 side ...
and every heat generated should be dissipated by a heat sink ... try using some compact ones from the world of the computer boards .
don't kill your mosfets by heating them .
and just an advice ... buy the IR2110 mosfet driver and use only N-MOSFET's with it and save your time and money .
go green .


edit:

12v driving circuit layout.pdf

(7.2 KiB) Downloaded 763 times

BTW ... I did this small circuit long before to be added to each BH0,HB1,HB2,HB3 as input to boost the signal as output to gates
of the low side MOSFET's of the Tronic H-Bridge to fully operate the mosfets into it' maximum performance linear region
[the gate voltage =or less than the supply voltage ]I've tested it and worked good for the coupled version H-Bridge .
I don't want to confuse you ... but only to spark ideas out .

regards
speedy

[kbssa]

Ok, thanks for the tips.

I'm using wiper motors.

I'll try the IRF3205, só as you said it will works good enven without the IR2110 mosfet driver right ??

If not, I'll use the IRL1104, cuz it will fully operate with logic level.

Thank's !!

[tronicgr]

I just seen the first post with the updated PCB...

Wow... Surface mounting of through hole parts... not bad idea! It might actually work! Just be careful not to make a mess because you wont be able to clean the surface from soldering residues with the parts in the way.

Best Regards,
Thanos

[speedy]

Original post updated ...
Thanks Thanos ... you are reading my mind and absolutely right ... DIY users can't handle such a mess.
So every one try to cover the unsolder arias with a permanent marker like this ... [use green if you like ].
the solder won't stick to it ... you can scratch back any copper aria if needed .

250px-Permanent_ink_marker_-_chisel_tip.jpg (4.36 KiB) Viewed 4127 times

speedy ...

[speedy]

Excuse me guys ... I'm sorry but to avoid mixing My H-Bridge with Thanos H-Bridge to the readers ... Further troubleshooting every h-bridge will be into it's own forum ...unless asking general questions ... this is really a confusing issue for all of us .

Ok, thanks for the tips.

I'm using wiper motors.

I'll try the IRF3205, só as you said it will works good enven without the IR2110 mosfet driver right ??

If not, I'll use the IRL1104, cuz it will fully operate with logic level.

Thank's !!

kbssa ...Wait, you've got my advice wrong. I meant to use this design instead of tronic board .Forgive me I have a feeling that your going to put the IR2110 driving IC instead of the 47HC08 IC on the tronic h-bridge
Pls. don't do that ...
Thanos is the original designer of the tronic H-Bridge and confirmed plus others earlier for replacing those MOSFET's and of course IRF3205 will work better than IRLZ44N that's only what I'm saying ...
but without replacing any thing else on it's own circuit design .Pls. these are different layout and connections .simply they are not the same ... my friend . Pls. read numbers carefully cause you are mixing between MOSFET's numbers and IC's numbers they could be tricky.

And to help ... here is a short summery :
-MOSFET's N-channel that are compatible acceding from the weakest but working for this h-bridge ... IRLZ44N = IRFZ44N = IRL1104 = ...many numbers... = IRF3205 .
-Driving IC's ... 74HC08 ( Quad 2−Input AND Gate) = none ... and IR2110( HIGH AND LOW SIDE H-Bridge DRIVER ) = none .

That is so far for the DC motor_N-channel MOSFET's_H-bridge that you are reading now ... with a driving IC IR2110 ...

pls. every one ... don't mix and mach without knowing what you're doing or you'll be sorry .

regards
speedy

[vicpopo]

Hi Speedy ,
I will dive in a water for building your h-bridge in order to test it with bigworm motors !
All the files on the first page are OK?
Did you got the parts list ?
Regards