how to drive a power module with avr??

[maxer]

i want to drive 12 v 3 a dc on/off via a avr micro?

how could that be done?? any schematic ??

regards

maxer

 

[Jack// ani]

You can use a power mosfet like... IRFZ44 and a optoisolator for isolation.

 

[maxer]

do you have any schematic on that??

i have only one atmega32 and i'm afraid to blow it it too much current is requested from it.. so i want to be sure that it'll work ....

regards

maxer

Added after 1 minutes:



i have already a moc3040,could that be able to drive that mosfet??

maxer

 

[Jack// ani]

MOC3040 is I triac optically isolated triac driver....it can't drive mosfet.

 

[maxer]

yes i know initially i used it for driving a normal fridge on 220v

but now i want to control a peltier in dc 12v 3amps.

i have seen that n-channel mosfets are used...i would like to know whether exists any h-bridge that is piloted directly bu an AVR micro.

maxer

 

[nat1981]

About CS8900A device

Hi everyone,
I am a computer engineer student and my senior project is designing an embedded web server portable device using CS8900A.
and i am collecting infromation for this ..
any help
i am appreciating ur contact..

thank [/b]

 

[Jack// ani]

Re: About CS8900A device

Hi everyone,
I am a computer engineer student and my senior project is designing an embedded web server portable device using CS8900A.
and i am collecting infromation for this ..
any help
i am appreciating ur contact..

thank [/b]

You have posted your question at wrong place!!! Try posting is as a new topic........