Converting 50v into 12v

You should be able to build a pretty simple supply, based on your application. I'm not sure how much power your trying to get, so the resistors will vary, however you should be able to get a steady 12 V output with a reverse biased 12V Zener and 2 1K resistors, that would work as long as your load resistance is greater than the 1K line resistance. Another option is LM317 Transistor, a 8.6K Ohm Resistor and a 1 K Resistor and 2 1uF Capacitors. As long as you don't increase the input voltage over 50 or decrease the ouput under 12, I'd go with the LM317 and a good heat sink.

I also want to convert my phone line's 50 volt

1. Not enough current to do anything

2. When you draw current it thinks the line is engaged

3. Your phone company may not like unapproved devices connected to it's network.

4. The ringing AC voltage is much higher than 50v AC.

Mark

Hey dear,

I talked to them they will not mind if I use it in emergency use.

Please refer the circuit to get output of 12 volt. And manage to attach some components e.g. a diot to make the circuit safe from ac current wile ringing.

Thank You

Sheikh

Sorry but I am not willing to help for the reasons I outlined above.

Someone else may copy the information and then guess who got implicated.

I have outlined that there is very little current so in an emergency it is not going to be much use.

IMO you would be far better concentrating on a solar solution.

Mark

Sheikh

Sorry but I am not willing to help for the reasons I outlined above.

Someone else may copy the information and then guess who got implicated.

I have outlined that there is very little current so in an emergency it is not going to be much use.

IMO you would be far better concentrating on a solar solution.

Mark

i Doubt it, nothing worth while in a reasonable period of time, as mcb1 said, our better off looking to Solar charger, you should also look to not trying to get it for free (Steeling power, there is nothing for free) but getting it as echonomically as possible after a little investment in technology

Will work and more predicatbale

Peter