Subject:
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Re: H-Bridge
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Newsgroups:
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lugnet.robotics.handyboard
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Date:
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Thu, 19 Mar 1998 07:03:53 GMT
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Original-From:
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Thomas Hauri <har@twi.ch(saynotospam)>
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Viewed:
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1507 times
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Hi
talking about the H-Bridge.....we are building one here for a 1.5 kW motor
with maximal power output of 2.2 kW.
This one works with 400V but is also developped for a current of a little
more than 10 A (actually 15A). It will be chopped with a frequency of up
to 25kHz.
The main problem is not the voltage, it's the current and the frequency.
Switching high currents fast means that you will get switching loses.
All I wanna say is that you have to be careful. H-Bridges aren't that
easy to build and if bought for industrial purposes pretty expansive. I
don't think that there is an integrated 10A H-Bridge. I've found some 3A
Bridges but they are really hard to get.
Question : Does it have to be 10 A ????
If yes, you could use two or three 3A Bridges parallel. That's what we
have done here for a robot.
Try NS for those H.Bridges.
François schrieb:
> Hello,
>
> I am also searching for a preassembled H-Bridge (12 Volt max 10 Amp in
> continuous mode).
> If anyone knows a good place to order one, I would be very interested.
> (We already tried to build the H-Bridge from Chuck Mac Manis but its
> components don't exist in France or are too expensive)
>
> Thanks
> François
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Message is in Reply To:
 | | H-Bridge
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| Hello, I am also searching for a preassembled H-Bridge (12 Volt max 10 Amp in continuous mode). If anyone knows a good place to order one, I would be very interested. (We already tried to build the H-Bridge from Chuck Mac Manis but its components (...) (27 years ago, 18-Mar-98, to lugnet.robotics.handyboard)
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