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Re: [AVR-Chat] Re: Dealing with 3-phase contactor sparks - Practical approach

2008-01-08 by Roy E. Burrage

MOC3020 is that part number Behrooz.  You should be able to find it with 
a google search.

We also use MOC3040 optocouplers here.  They incorporate a zero-crossing 
circuit to reduce noise.  The MOC3020 may also do this.


REB


Behrooz wrote:

>Enki, please send your file moc3020.gif to "Files" section of Yahoo! 
>Group. No link is provided so I didn't receive it.
>
>Tnx,
>Behrooz 
>--- In AVR-Chat@yahoogroups.com, "Enki" <enkitec@...> wrote:
>  
>
>>
>>
>>On 8 Jan 2008 at 14:14, Behrooz wrote:
>>
>>    
>>
>>>I think you are right, even with no power on contactors (just 
>>>      
>>>
>relays 
>  
>
>>>are on) the same problem occures time to time. 
>>>
>>>May you send me a schematic (or web link) on using optocouplers 
>>>along with TRIACs on AVR output pins? Am amazed with this 
>>>      
>>>
>optocoupler 
>  
>
>>>part. Seems interesting, and maybe a final solution?!
>>>


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