Fix Repair of simple Travel Phone Car Charger. Small upgrade for better performance

Fix Repair of simple Travel Phone Car Charger. Small upgrade for better performance

Hello everyone, привет все and welcome back to very excited video blog Today I decided to repair and little bit upgrade the Chinese car charger, which stopped working

And you, can look inside and see a typical circuit for cheap car charger as you can see, it has an input voltage 10-12V and an output voltage 5V for 1amp to disassemble it… The most of these charges have the same circuit and have only difference is the design The link to a similar charger you can find in description I think it has bad contact, that's why I stopped working As I thought, this is the simplest solution which is assembled on a linear stabilizer 7805 I think that I will slightly update the circuit and add several components to make it work a little bit better Yes, the problem was in poor soldering This is a typical problem for Chinese cheap devices and the link to a similar charger you can find in description Still badly soldered stabilizer The circuit is very simple based on an L7805CV linear stabilizer which is very hot during works, so he needs a radiator or steak heat

This is LED And a voltage divider on the data bus for identification of this device This is a 5 volts bus Can do without this divider, and your can simply cut off the bus and short-circuit this two data pins Two identical capacitors on 100uF and for 16V The input needs to be increased something like 250 may be 450 uF This is ground Nothing interesting can be upgrade for a little bit better work, but it's not a principle The LED light when the device is connected and works These are my changes… Two filtering capacitors added for low filtration… The diode for short circuit protection and the film capacitor at the input… 450uF Your can see a circuit with all the changes… I did not put a heat steak let's check how it works now… Remember, the best way say: thank you to the author it's share this video with your friends I'll think to see your – next time Bye

Source: Youtube

Md. Elias
admin@test.nygadgetfix.com
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