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Tinker Board Forum › Tinker Board / Tinker Board S › Android v
Suppressor Diode

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Suppressor Diode
Augusto Offline
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#1
12-05-2018, 05:45 PM
By carelessness I injected 10v on my plate. She does not care.

The circuit is shorted. Anyone know, what is the board's suppressor diode?
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Im4Tinker Offline
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#2
12-05-2018, 05:54 PM
There is a schematic for the tinker board.
Light blue words might be a link. Have you try to click on them? Big Grin
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Augusto Offline
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#3
12-05-2018, 08:24 PM
(12-05-2018, 05:54 PM)Im4Tinker Wrote: There is a schematic for the tinker board.

The scheme is incomplete and there are no component locations either.
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Im4Tinker Offline
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#4
12-06-2018, 02:16 AM
Sorry, that is what is published. There are some kind of protections, but I doubt there's one for over-voltage supply.
You might prepare one whit a zener (rather robust) and a fuse. The fuse will blow once the zener will start to conduce. Or even a better system that will short the input when the voltage will exceed the limits, so the fuse will be blown.
Light blue words might be a link. Have you try to click on them? Big Grin
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Augusto Offline
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#5
12-06-2018, 10:32 AM
(12-06-2018, 02:16 AM)Im4Tinker Wrote: Sorry, that is what is published. There are some kind of protections, but I doubt there's one for over-voltage supply.
You might prepare one whit a zener (rather robust) and a fuse. The fuse will blow once the zener will start to conduce. Or even a better system that will short the input when the voltage will exceed the limits, so the fuse will be blown.


I wonder if there is any way to fix my TB?
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Z80 Offline
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#6
12-06-2018, 11:22 AM (This post was last modified: 12-06-2018, 11:22 AM by Z80.)
(12-06-2018, 10:32 AM)Augusto Wrote:
(12-06-2018, 02:16 AM)Im4Tinker Wrote: Sorry, that is what is published. There are some kind of protections, but I doubt there's one for over-voltage supply.
You might prepare one whit a zener (rather robust) and a fuse. The fuse will blow once the zener will start to conduce. Or even a better system that will short the input when the voltage will exceed the limits, so the fuse will be blown.

Try using the 0v and 5v gpio pins and power via them, this may bypass any fuses etc
I wonder if there is any way to fix my TB?
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Im4Tinker Offline
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#7
12-07-2018, 06:20 AM
(12-06-2018, 10:32 AM)Augusto Wrote: I wonder if there is any way to fix my TB?
I seriously doubt there will be a fix after suck strike, unless your are able and equipped to work on SMT and find where to replace damaged components.... Otherwise anything would go for a higher cost than buying another brand new TB.
Light blue words might be a link. Have you try to click on them? Big Grin
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