DC motor_N-channel MOSFET's_H-bridge

Topics and questions about AMC, h-bridges, JRK's etc.

DC motor_N-channel MOSFET's_H-bridge

Postby speedy » Thu 26. Jul 2012, 05:44

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Last edited by speedy on Mon 13. Jan 2014, 00:59, edited 44 times in total.
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Re: DC motor_N-channel MOSFET's_H-bridge

Postby tronicgr » Thu 26. Jul 2012, 17:37

Hi Speedy,

Nice project!

Do you have an estimate of the cost for this h-bridge?
Also can it drive 24V motors?


Thanos
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Re: DC motor_N-channel MOSFET's_H-bridge

Postby speedy » Thu 26. Jul 2012, 23:43

Hi Thanos ...
Thanks for your support at the first time .

the best price for it is 200 LE [Egyptian pound ] including every thing (the copper disk ,the fan ,the board ,... etc.) ... FYI [6 LE = 1 USD ]
That makes it around 34 USD for hardware . And the max time assembling it is 3hrs if you can DIY. ;)
I can list the prices in details if you like .
Yes sure 24V is fair enough if you are using the proper MOSFETs.

the driving IC's IR2110 for a half H-bridge connection as per the datasheets can operate the high side MOSFETs voltage up to 500V [IF MOSFETS are equivalent ] ...

and for the logical side for the signal is 5v isolated from the high side voltage is compatible with the AMC1.6/1.5 controller .
with some restrictions for coupling two IC's you can make Full H-Bridge driving circuit easily as you see in the pictures above .
you can find the datasheet for IC's here

ir2110.rar
(196.64 KiB) Downloaded 360 times


it's easy now to go for it . using the IRFZ44N without any problems .
Last edited by speedy on Sun 23. Sep 2012, 07:12, edited 4 times in total.
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Re: DC motor_N-channel MOSFET's_H-bridge

Postby tronicgr » Fri 27. Jul 2012, 15:06

It looks cheap. The only problem I can see is the size of it. Maybe if it could be 10x10cm or less. With some double layer design I bet it could be as small as 5x5cm. There are cheap PCB services around but as the size gets bigger, so is the price.

for example:

5x5cm pcb cost is $1 ($10 for 10 pieces)
10x10cm cost is $2.5 ($25 for 10 pieces)
but
10x15cm cost is $7 !!! ($70 for 10 pieces)

You see the more size you add the more the cost goes up exponential...

I already have some h-bridges based in similar driver, the HIP4081AIPZ (a somewhat more expensive driver but its a full bridge driver). Was just trying to avoid using specialized chips like that if I can as they are more difficult to source. I'll give a try to my last design with optocouplers board in between and if that fails, I'll definitely have a closer look in designing a compact and cheap h-bridge for our needs here, that is if I can make it cost less than the pololu high power motor drivers...


Thanos

PS. I have no idea what's going on with attachments. You should ask Floriske.
Last edited by tronicgr on Thu 2. Aug 2012, 14:21, edited 2 times in total.
Reason: corrected units
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Re: DC motor_N-channel MOSFET's_H-bridge

Postby Kampfwurst » Sun 29. Jul 2012, 15:19

great job. Can I drive a 24V motor with 30A?
Do you have a manual for the conections to the microcontroller?

Is it possible to have an emergency stop control
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Re: DC motor_N-channel MOSFET's_H-bridge

Postby motiondave » Mon 30. Jul 2012, 15:41

Kampfwurst wrote:great job. Can I drive a 24V motor with 30A?
Do you have a manual for the conections to the microcontroller?

Is it possible to have an emergency stop control


Emergency stop?!?!? Wheres your sense of adventure?!?! :lol:
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Re: DC motor_N-channel MOSFET's_H-bridge

Postby Kampfwurst » Mon 30. Jul 2012, 19:25

I would like to use the Board for my robot lawn-mower ;-). So I need the emergency stop. I have to short the DC Motor to stop the blade.
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Re: DC motor_N-channel MOSFET's_H-bridge

Postby motiondave » Tue 31. Jul 2012, 00:05

Kampfwurst wrote:I would like to use the Board for my robot lawn-mower ;-). So I need the emergency stop. I have to short the DC Motor to stop the blade.


For that...good idea...
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Re: DC motor_N-channel MOSFET's_H-bridge

Postby speedy » Wed 1. Aug 2012, 04:46

Good day every one ...

I'm glade you liked it ... :D

This bridge can operate a DC motor up to 48V and can handle about 150A load current ... So, yes 24V motor is [ OK ] If you are using [ IRF3205 MOSFETs ] ...
This bridge is compatible with the [Tronic AMC 1.5/1.6 USB motor motion-controller] that is fully explained here

http://www.x-sim.de/forum/viewtopic.php?f=39&t=132
and here
http://www.*.de/forum/tronic-s-amc-motor-motion-controller-with-pwm-servo-output-t559.html


All information for a quick peak to this controller and the connection pinout for the H-bridge [ The same as mine ] is into the last 3 or 4 pages of the following file

AMC_DSMhb_Manual.rar
(6.3 MiB) Downloaded 420 times


Also it can handle more voltage and amps with higher MOSFETS but the tracks on this board needs to be redesigned for more amps ... otherwise they will burn and go off ...

Mr. Kampfwurst : Pls. ...
I need to know how you're going to operate a lawn-mower with a micro controller that has a feedback, speed, and direction control with a motor controller like this ... [ what is the need for it ]? [ what is your actual problem ]?.
Last edited by speedy on Sun 23. Sep 2012, 07:14, edited 4 times in total.
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Re: DC motor_N-channel MOSFET's_H-bridge

Postby tronicgr » Wed 1. Aug 2012, 17:09

speedy wrote:Mr. Kampfwurst : Pls. ...
I need to know how you're going to operate a lawn-mower with a micro controller that has a feedback and speed and direction control with a motor controller like this ... [ what is the need for it ]? [ what is your actual problem ]?.


Exactly my thoughts... :lol:
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