BT139 & MOC3063

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Omid Contact options for registered users 's Avatar (by Gravatar) posted on
September 10, 2006, 12:07 pm
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I have desined a circuit with a Triac (BT139) to swith an AC Motor that
works with 220 VAC.
(Go to this link to see my Circuit   http://hojabri.741.com/BT139.JPG )
I have used a MOC3063 Optocoupler with Phase Detector capabilities. I
seems work fine. but after some times (maybe some hourse) after running
the circuit fails and the motor will vibrate and will not rotate. this
problem will be solve if i change
the MOC3063 with new one. but the same will happen with the second ic.
my question is , should i
select another range of resistors with the MOC3063 ?


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Rheilly Phoull Contact options for registered users 's Avatar (by Gravatar) posted on
September 11, 2006, 3:56 am
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Re: BT139 & MOC3063


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Remove R2 then connect the gate of the '139 to where r2 was connected on the
opto isolater, no other connection to the line required.
--
Cheers ............. Rheilly P



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Phil Allison Contact options for registered users 's Avatar (by Gravatar) posted on
September 11, 2006, 4:12 am
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Re: BT139 & MOC3063



"Rheilly Phoull"


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 ** Huh  ???????

You have weird ideas about how opto-triac triggers work.

They do not generate current internally,  you know.

Have a look at page 6 on this PDF datasheet.

http://www.fairchildsemi.com/ds/MO/MOC3063-M.pdf




.......  Phil



Brian Goldsmith. Contact options for registered users 's Avatar (by Gravatar) posted on
September 11, 2006, 9:46 am
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Re: BT139 & MOC3063





Remove R2 then connect the gate of the '139 to where r2 was connected on the
opto isolater, no other connection to the line required.
--
Cheers ............. Rheilly P


***** You really are a fool ,aren't you??

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Rheilly Phoull Contact options for registered users 's Avatar (by Gravatar) posted on
September 11, 2006, 10:49 am
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Re: BT139 & MOC3063


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well it works fer me on a moc3021 and I dont see you blokes coming up with
mush other than the usual crap and no help for the OP
--
Cheers ............. Rheilly P



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Phil Allison Contact options for registered users 's Avatar (by Gravatar) posted on
September 11, 2006, 11:24 am
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Re: BT139 & MOC3063



"Rheilly Phoull"

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** There is no possible way that is true.

 R2 simply limits the max trigger current to under 1 amp.

 Maybe you mixed up the T1and T2 terminals.



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** The OP has posted the same naive message on three NGs.

  Got some good replies.

  So far responded to none.





.......  Phil



Brian Goldsmith. Contact options for registered users 's Avatar (by Gravatar) posted on
September 12, 2006, 1:26 pm
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Re: BT139 & MOC3063




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well it works fer me on a moc3021 and I dont see you blokes coming up with
mush other than the usual crap and no help for the OP
--
Cheers ............. Rheilly P


***** Wota really fool wanker,you really haven't got a clue,have you?

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