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ched:
31 Aug 2019 20:37:03
Looking forward to BFU #9 footage  :D Hope you all had a great time
Gaza07:
31 Aug 2019 04:46:44
Hope you all have a great day today at the BFU 9  :beer2:
dp106:
29 Aug 2019 11:19:07
try again now, hopefully it should be resolved...
Gaza07:
29 Aug 2019 11:17:40
Should be fixed now
hoverfly:
29 Aug 2019 11:12:33
replies with only a few words are being rejected as file too big.. :hmm:
dp106:
29 Aug 2019 11:09:33
3D Site also affected
dp106:
29 Aug 2019 11:09:11
Gaza is on the case
dp106:
29 Aug 2019 11:09:03
there are currently issues with the forum
dp106:
29 Aug 2019 11:06:07
test
ched:
28 Aug 2019 17:28:19
Cheers Andy7.
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3d - Printworx

Printing 3d Forum

MinimOSD correct way to supply VCC / wiring so its not damaged

Started by Jumpy07, Tuesday,October 23, 2012, 17:35:36

Previous topic - Next topic

Jumpy07

After learning the hard way thought I would share my findings..

It appears the MinimOSD has a design fault, many people that follow the guide on the wiki to connect it up fry their boards.. (http://code.google.com/p/arducam-osd/wiki/minimosd)

This happens due to the way the MinimOSD supplies are connected, at one side there is 5V provided by the FCC or UBEC, the other side has a 12v supply that is used for the camera nd tx feed as the diagram below. (do not connect up as shown below as you will most likely blow the board due to a design fault).



The reason the board blows is that the 5V regulator that powers the analogue side of the board via an onboard 5v regulators... its fragile and heats up..  (also caused by ground issues), many people have blown their boards because of this..

A better way is not to use the onboard 5v regulator but feed 5v from a UBEC or FCC to the MinimOSD as shown the diagram below and to use a LC filter to provide the 12v feed directly to the camera and video TX.

On the board there are two solder pads to join the analogue and digital Ground and 5V';s lines  to enabled this.



Hope this makes sense and saves someone a board..
BNUC-S Pilot with PfCo /PFAW.
UAQ / CAA PfCo Instructor / Flight Assessor

"All that is necessary for the triumph of evil is that good men do nothing"

Gaza07

Thats a bad error for them to make well spotted and thanks for posting your findings  :bravo:  :england:

oops sorry could help the flag  :rolleyes:

neagron

thanks jumpy for that Marty,and heres gods on flag  :scotland: :scotland:  sorry??

Polleke1949

Thank you Jumpy07.  :cool:
I was searching for this, because i want to buy an OSD v1.1