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HomeAircraftHelicopterHelicopter Main Discussion › SChottky diode
11-17-2018 12:36 PM  28 days agoPost 21
Ace Dude

rrProfessor

USA

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ticedoff8
Until the EC5 connector on the main battery unsolders and you lose the power to the ESC / BEC.
Then you watch the heli fall to the ground in a heap.
That failure scenario would not be the fault of the ESC.

However, something is seriously wrong if your connector gets hot enough to the point the solder joint melts.

  

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11-18-2018 01:21 PM  27 days agoPost 22
rpat

rrElite Veteran

Weirton, W. Va.

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OK my question is why use a second battery when the main one is still good just the BEC has gone south not the main battery. Coulden't you just use the main battery wired to the diode around the ESC?

trex 700fbl cal30,minititan,, trx600fbl,trex250,logo 500,Velocity N2

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11-18-2018 03:40 PM  27 days agoPost 23
AirWolfRC

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42½ N, 83½ W

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No - - because a 3S main battery will put 12V to your RX & servos.

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11-19-2018 04:18 AM  26 days agoPost 24
rpat

rrElite Veteran

Weirton, W. Va.

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Aaahhhh good point if your using a 3s battery.

trex 700fbl cal30,minititan,, trx600fbl,trex250,logo 500,Velocity N2

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11-19-2018 05:22 PM  26 days agoPost 25
Rojoalfa

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Punta de Mata, Monagas-Venezuela

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/
/

I was thinking using two different type of batteries to do the job. For example, a lipo 2S as a main system and a regular 4s NiCD as a backup system.

I an not quite sure how this diode fail... I think this diode fail doing a short circuit... Very dangerous situation because the two system is being connected with the failed diode.

How this diode fail anyway?

/

Saludos cordiales,

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11-19-2018 05:36 PM  26 days agoPost 26
AirWolfRC

rrProfessor

42½ N, 83½ W

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Diodes usually fail open.

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11-20-2018 04:10 PM  25 days agoPost 27
A&J

rrApprentice

Hudson FL 34667

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My diodes are supposed to be in by the 30th I'm going to load them up on the bench and see how it works

Planning on stressing it much as I can
Be using 2 lipo packs

Lets do the time warp againnn !

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11-21-2018 12:45 PM  24 days agoPost 28
Rojoalfa

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Punta de Mata, Monagas-Venezuela

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/
/

Well, I don't trust either on ESC with BEC.

Every electronic component on board is a point for failure, so, be careful.

Keep your stuff simple.. Don't mess with more cheap components on board.

/

Saludos cordiales,

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11-21-2018 02:09 PM  24 days agoPost 29
A&J

rrApprentice

Hudson FL 34667

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I got you man
The only can do the best you can and to be as safe as you can

Lets do the time warp againnn !

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11-21-2018 03:33 PM  24 days agoPost 30
AirWolfRC

rrProfessor

42½ N, 83½ W

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Well, I don't trust either on ESC with BEC.
Every electronic component on board is a point for failure, so, be careful.
Keep your stuff simple.. Don't mess with more cheap components on board.
Everything is a point of failure, man made or not.
Eliminating points of failure is not the question, reducing the probability of failure by proper design is the question.

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11-24-2018 11:51 AM  21 days agoPost 31
Rojoalfa

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Punta de Mata, Monagas-Venezuela

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/
/

When we install a 2s2p LIPO battery, we use a redundancy criteria.

This recomendation has the Same criteria... Looking for some redundancy in case of failure. So, no diode is required for such a procedure.
Put the two batteries in paralel and ready To flights .

The Main issue with this concept is that both sectors are draining energy ,so it is not a backup device. Both batteries are working at the Same time. So, by the time you need this, the backup battery would be exhausted.

/

Saludos cordiales,

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HomeAircraftHelicopterHelicopter Main Discussion › SChottky diode
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