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Attention: RC-CAM.com will be closing down August 2021.

The RC-Cam.com forum was the very first online community dedicated to the advancement of wireless video cameras on radio controlled (R/C) models. This is now called "FPV" (First Person View). We are proud of the contributions that our members have made to the FPV hobby.

We've seen significant changes over the last twenty years. Initially there were a lot of eager R/C hobbyist that built their own video systems. Allowing these creative individuals to share their work was the purpose of this site. Now the FPV market is flooded with low cost systems; Sadly DiY FPV video projects are now rarely discussed.

RC-CAM.com (main site and forum) will be closing down August 2021. This is being announced now (March 2021) so that everyone has time to download any information that is important to them. After the site is shutdown the information will no longer be available here.

We appreciate every member's involvement with advancing the FPV hobby. It is indeed sad to say goodbye to all our online friends. Be safe and stay healthy.


Reverse polarity damage

Dimitris76

By Dimitris76,
in R/C Electronic Projects

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Dimitris76

Dimitris76 0

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I thought it happens only to others but while I was testing a new FPV setup I reverse-connected the switch-mode BEC I am using for powering up everything with 5V. The BEC is this one http://www.dpcav.com/xcart/product.php?productid=16488&cat=252&page=1 . I heard a faint "paff" and it died immediately. I don't see any obvious damage on any component. Can anybody tell me which component did most likely get damaged, in order to replace it?

Thomas?

Regards,

Dimitris

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Mr.RC-Cam

Mr.RC-Cam 129

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I'm just happy to hear that only the BEC was killed; Could have been more devastating.

There's very few components on a DC-DC BEC. It is hard to know what the damage is on yours, but the one part that is usually destroyed is the switch mode controller IC. In small volumes the can cost as much as a new replacement BEC.

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Dimitris76

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Oh... I was hoping to hear that a sacrificial diode or something would be damaged...

Thank you for the answer!

Dimitrios

I'm just happy to hear that only the BEC was killed; Could have been more devastating.

There's very few components on a DC-DC BEC. It is hard to know what the damage is on yours, but the one part that is usually destroyed is the switch mode controller IC. In small volumes the can cost as much as a new replacement BEC.

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