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Lower cell charger voltage from 54v to 3v lg

RICrichard

hace 5 años

I WOULD LIKE TO KNOW HOW I CAN LOWER THE VOLTAGE TO A 5V TO 3V CELLULAR CHARGER, SO THAT IT IS CONNECTED TO THE REMOTE CONTROL OF THE TELEVISION AND THAT I AM OF VENEZUELA AND IT IS NOT POSSIBLE TO BUY BATTERIES BECAUSE THEY ARE TOO COST FOR THE PROBLEM THAT WE ARE PASSING , IF SOMEONE GUIDES ME I AM NEW IN THIS AND I WOULD LIKE YOUR SUPPORT FOR SOMEONE TO BE BY DRAWINGS OR GIVING INSTRUCTIONS OF HOW TO DO IT, I WOULD THANK IT ENOUGH.

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felipe antonio

2.308

hace 5 años

companion .. the contribution of maestro jose enrique is good. Just one comment, the zener is reversed. the cathode must go to the positive and the ground anode. greetings everyone. Felipe ascencio

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J. E. T

810

hace 5 años

Felipe Antonio I was right I was wrong in diode goes backwards that happens to do things to the races xd

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J. E. T

810

hace 5 años

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hace 5 años

It is very easy with a 3.3 or 3 volt zener diode or a resistance of at least 1khom I attached a diagram "corrected" I hope and it serves you can solder the diode directly to the springs the negative directly and the resistance to the positive note: do not use a charger of more than 2 amps since the resistance to heat a 35mha (.35amp) of an old cell phone will be very hot, it will serve you well or maximum 1 amp to avoid taking risks salu2

Now if it's okay I do the diagram

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RICrichard

hace 5 años

Jose Enrique thank you very much for that contribution friend, I live in Venezuela and this is very bad and all very expensive, already AAA triple batteries, they are through the clouds and difficult to get, and I have many cell phone chargers and I will use it with the specifications that You sent me

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felipe antonio

2.308

hace 5 años

Master Jose Enrique. good morning. It is natural.- as you express it "the races". but the diagram fits him well. Regards. Felipe ascencio

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RICrichard

hace 5 años

Thanks felipe now the 1K resistance of 1/4 watt

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felipe antonio

2.308

hace 5 años

companion.- subject to what José Enrique Enrique thinks, it should be 1 watt., the more watts it does not affect him, greetings everyone, Felipe ascencio

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