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Old 7th February 2011, 11:25 AM   #11
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Your 110/240v tracks are too close together, and too close to secondary side circuitry.
Better off not running mains on the board.

Eric.
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Old 7th February 2011, 01:19 PM   #12
AndrewT is offline AndrewT  Scotland
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Quote:
Originally Posted by mrfeedback View Post
Your 110/240v tracks are too close together, and too close to secondary side circuitry.
Better off not running mains on the board.

Eric.
and far too long.

If mains is on PCB then keep is small/compact, keep it well spaced from other voltages, add supplementary insulation to prevent accidental contact.
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Old 8th February 2011, 10:12 AM   #13
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Thanks for your advice, we already make prevent accidental contect by small part cutting off the pcb for separete two deference voltages,
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Old 12th February 2011, 12:53 PM   #14
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New process!!
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Old 20th February 2011, 04:20 PM   #15
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New process!!
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Old 4th March 2011, 05:44 PM   #16
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New process!!
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Old 5th March 2011, 08:39 AM   #17
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Originally Posted by gxcnabin View Post
Thanks for your advice, we already make prevent accidental contect by small part cutting off the pcb for separete two deference voltages,
The usual recommendation is to have 1 mm separation per 100 V between adjacent non-isolated leads. For 230 V you should use 100 mil (2,54 mm) or more separation. It makes no difference, whether you route a slit into the PCB or not, because the isolator remains to be air.

The recommended minimum trace width for 230 V is 50 mil (1,27 mm).

And by the way, since the early 1990s the international norm voltages are 115 and 230 V.

The supply traces to the LM3886s also look flimsy when you take into account that each of them can deliver 8 ADC or 5,6 AAC continuously.

Why do all your different "processes" carry the same version number V1.0? How do you keep track?
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Old 6th March 2011, 11:10 AM   #18
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Originally Posted by pacificblue View Post
The usual recommendation is to have 1 mm separation per 100 V between adjacent non-isolated leads. For 230 V you should use 100 mil (2,54 mm) or more separation. It makes no difference, whether you route a slit into the PCB or not, because the isolator remains to be air.

The recommended minimum trace width for 230 V is 50 mil (1,27 mm).

And by the way, since the early 1990s the international norm voltages are 115 and 230 V.

The supply traces to the LM3886s also look flimsy when you take into account that each of them can deliver 8 ADC or 5,6 AAC continuously.

Why do all your different "processes" carry the same version number V1.0? How do you keep track?
The usual recommendation is to have 1 mm separation per 100 V between adjacent non-isolated leads. For 230 V you should use 100 mil (2,54 mm) or more separation. It makes no difference, whether you route a slit into the PCB or not, because the isolator remains to be air.

The recommended minimum trace width for 230 V is 50 mil (1,27 mm).

Complete meet standards.And by the way, since the early 1990s the international norm voltages are 115 and 230 V.


The voltage supports 100-110-115V 220-235-245V


The supply traces to the LM3886s also look flimsy when you take into account that each of them can deliver 8 ADC or 5,6 AAC continuously.

After completing, is not you saw like this, thanks your reminder.
Why do all your different "processes" carry the same version number V1.0? How do you keep track?

PCB did not formally before the,is the identical edition number.

Thanks your reminder once more!!!
abin
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Old 6th March 2011, 11:46 AM   #19
AndrewT is offline AndrewT  Scotland
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Hi GX,
you replies to Pacific's post do not make sense.
What is your native language?
Maybe you should present your questions in your own language and provide a translation to english for the Forum members.
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Old 26th March 2011, 12:48 PM   #20
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PCB。。。。。
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