Medium power full bridge driver

Mar 11, 2008 2 Replies
J

I can't seem to find a medium power(about 180W) full bridge driver to drive a 12V@180W BDC motor.



Most I see are rated for around 3A or so cts.



What do I need to do? Can I parallel these things(and is it even worth it) or am I just not looking in the right place? I don't need all the bells and whistles I see on some of these drivers but just something that I can drive from a uC using PWM for variable speed control(and the ability to reverse direction hence the full bridge).



Thanks, Jon


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T

APEX semiconductor has them.

Don't come crying to me when you see the price tag -- remember that all you had to do was slap it on the board.

Tim Wescott Wescott Design Services http://www.wescottdesign.com Do you need to implement control loops in software? "Applied Control Theory for Embedded Systems" gives you just what it says. See details at http://www.wescottdesign.com/actfes/actfes.html
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C

Perhaps use a HIP4081 to drive an external MOSFET bridge? I think they're good at 12V (and up to 80V). The high-side drive capability means you don't need P-FETs, just 4 N-FETs.

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