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Micro, MOSFET and DC motors

 
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vivo



Joined: 26 Oct 2016
Posts: 1

PostPosted: Thu Oct 27, 2016 7:04 am    Post subject: Micro, MOSFET and DC motors Reply with quote

I'm developing a nano quadcopter using an Atmega328 microcontroller, powered at 3.3V, and very small brushed DC motors. The average current used by these motors is about 800mA @ 3.7V.

Initially, to drive them, I used an L293D motor driver but this component was quite inefficient. The current measured when the motors ran at max power was about 500mA and so the thrust was much lower then it should be.

Now, to solve this problem, I would replace that motor driver with 4 logic level MOSFETs. After a long search, I find 2SK4033 (http://www.kynix.com/Detail/968058/2SK4033.html).

Do you know if it should work? Do I have to use it in conjunction with a diode? If the answer is "yes", what about MBR360RLG?

I chose these components also because I can buy them from the same online store.[/url]
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