Why Do Diodes have Two Input Terminals and Only One Output

Question

Question:

why does a diode have 2 lines in and only one out

asked by: Bill R

0

Expert Reply:

Diodes like the part # RM-790 have two wires on the input side so that you can have two different power sources activating a single circuit (the out side) and not have to worry about the power circuits backfeeding on each other.

expert reply by: Jameson C

0

Answer 1

For a single diode to prevent current backfeed the part #RM-790 would be a great option.

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Answer 2

Your black drawing would be how wire up the #RM-790 so that both batteries would be on the same circuit but with feedback prevented on the circuits back to the batteries or having them tied together. Basically you would use a diode on each battery…

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Answer 3

A diode is designed to stop the reverse flow of current in an electrical circuit. Therefore yes, a diode will prevent backfeed to your vehicle from the trailer's battery. The part you referenced part #RM-790 has a dual in, single out function…

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Answer 4

The Roadmaster Single Park Light Diode #RM-690 can withstand 85 continuous amps at 12 volts. As long as your 12V alternator doesn't exceed this power output the diode can indeed be used for your application without issue.

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Answer 5

You do not need to have a diode between the two 12 volt batteries on your trailer and tow vehicle but it is not a bad idea either. The Roadmaster Single Park Light Diode part #RM-690 will work perfectly for this. The factory 12 volt pin on most 7-way…

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Answer 6

The Diode part #RM-690 is designed to only allow current to flow in one direction. You could use it to run the charge wire to each battery so that they couldn't drain or charge each other. And then from each battery run a wire to wherever you…

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Answer 7

You are getting backfeed from the Jeep through the wiring harness back to the motorhome. I spoke to my contact at TrailerMate and they told me the diodes included with this system are not designed to prevent backfeed. We have a solution that will…

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Answer 8

To determine the wiring for your 2016 Winnebago View you can look at how the tail lights function. If the brake light also functions as your turn signal then you have combined lighting. The lighting for your 2012 Fiat 500 is wired separately so once…

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Answer 9

Your 2013 Mini Countryman uses a 3-wire lighting system. That means there is a wire for the turn signals, stop lights, and taillights. You will need to install a diode on each of these circuits to prevent power backfeed. If you take a look at the…

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Answer 10

For your 2002 Toyota Tacoma, I recommend the Roadmaster Diode 7-Wire to 6-Wire Flexo-Coil Wiring Kit #RM-15267. This kit will allow you to wire your Tacoma to accept the RV's tail, brake, and turn signal lights for flat towing. Since you have…

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Answer 11

That is exactly what converter #118158 was designed for. You will not have to use diodes, although you could if you wanted and it wouldn't hurt anything, because there is only one input circuit for each of the wires. The red output wire would go…

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Answer 12

The difference between the Class II and Class III hitches has to do with their Gross Trailer Weight (GTW), their Tongue Weight (TW), and their Hitch Receiver Size. Class II trailer hitch receivers have a 1-1/4 inch receiver and can be rated up to…

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Why Do Diodes have Two Input Terminals and Only One Output

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