Laptop Power Supply – Car Adapter Circuit using UC3843

[papi92]

Hello! I want to do laptop charger for the car and searched for schemes on the Internet. I saw a few and this **broken link removed**

Assembled it on the experimental circuit, but I drove it. Output signal on UC3843 is not present. I checked my connections and everything is correct. On a 7 foot 10.5V, 1 and 2 to 2.5V mass of 8 - 5V.

I want to ask if there is something messed up the scheme or just can not find the error? Thank you!

 

[romel_emperado]

since it's very difficult for us to identify what is the error you are getting through we cannot make any precise advice of what is the problem is..

kindly check the voltages stage by stage from the source to your output for you to identify where or what is the problem


you said that the UC3843 ouput is not present so that would be the best hint for you to start your troubleshooting..

check that UC3843 if it has input signal also...