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dimas_lilik
Joined: 13 Aug 2007
Posts: 53
Location: Indonesia
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 21 Aug 2009 14:29 l293 bipolar motor driver |
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Pls, Help me
I want to controll Motor Bipolar Stepper 5A with L293.
L293 peak Current only 1 A but Motor Stepper needed 5A
Can some body help me, pls
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nandhu015
Joined: 11 Feb 2006
Posts: 640
Helped: 46
Location: Tamilnadu, India
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23 Aug 2009 3:03 four motor bipolar stepper |
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Try some discrete mosfet design, L293 is not suitable for this job
Nandhu
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dimas_lilik
Joined: 13 Aug 2007
Posts: 53
Location: Indonesia
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23 Aug 2009 17:02 l293 bipolar stepper |
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I try with with MOSFET IRFZ44 and MTP2955.
But MTP2955, I cann't find it.
Pls help me
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haker_fox
Joined: 24 Jun 2009
Posts: 50
Helped: 4
Location: Russia, Irkutsk
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25 Aug 2009 3:06 l293, |
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| dimas_lilik wrote: |
I try with with MOSFET IRFZ44 and MTP2955.
But MTP2955, I cann't find it.
Pls help me |
This circuit isn't good because of the drains of top MOSFET is connected to high voltage. I suggest to you another good H-bridge http://www.cadvision.com/blanchas/hexfet/np-s.htm If you motor's power supply more than 20V add zener to drains of top MOSFET to protect them. You can use any zener at voltage 15 V.
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dimas_lilik
Joined: 13 Aug 2007
Posts: 53
Location: Indonesia
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26 Aug 2009 17:05 l293 bipolar circuit |
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Dear haker_fox,
in my project: bipolar motor stepper have 4 wire
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nandhu015
Joined: 11 Feb 2006
Posts: 640
Helped: 46
Location: Tamilnadu, India
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27 Aug 2009 1:55 89c51 circuit to bipolar stepper |
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You have to use 2 of them (one for each coil)
Nandhu
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haker_fox
Joined: 24 Jun 2009
Posts: 50
Helped: 4
Location: Russia, Irkutsk
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27 Aug 2009 2:40 l293d stepper driver |
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| dimas_lilik wrote: |
Dear haker_fox,
in my project: bipolar motor stepper have 4 wire |
Well, you have to use two of them as in your first circuit.
Good luck!
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dimas_lilik
Joined: 13 Aug 2007
Posts: 53
Location: Indonesia
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28 Aug 2009 17:33 stepper motor 4wire l293 |
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| Many Thank's. I made a success of 4 wire bipolar stepper. Thank's
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dimas_lilik
Joined: 13 Aug 2007
Posts: 53
Location: Indonesia
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31 Aug 2009 16:56 l293 bipolar +stepper driver |
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But I have problem, How to get position of stepper?
I use controller 89S51,
Please help me
thank's
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haker_fox
Joined: 24 Jun 2009
Posts: 50
Helped: 4
Location: Russia, Irkutsk
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01 Sep 2009 11:14 power supply motor bipolar |
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| dimas_lilik wrote: |
But I have problem, How to get position of stepper?
I use controller 89S51,
Please help me
thank's |
I think that crasstalk is unuseful here. You have answered your question in another topic.
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Google
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01 Sep 2009 11:14 Ads |
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dimas_lilik
Joined: 13 Aug 2007
Posts: 53
Location: Indonesia
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03 Sep 2009 17:00 l293e stepper circuit |
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dear haker_fox
If i use encoder and stepper, i think's bad idea.
but if i use motor and encoder, it's good idea
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