Hi everyone!
After my failures on Ebay, I decided to have another project. So I thought "why not make a quality power supply?" Not a bad idea, though, seeing as I need an adjustable power supply. Why not make one and learn along the way?
A good oppertunity to aim for a real life application for a uC project!!! Two birds with one stone eh?
However, there are a few things I'm not too sure on.
Firstly, I (think I) know how a variable voltage regulator works. By changing the voltage on the ADJ pin, you can adjust the output voltage. However, how can I do this with higher voltages? I presume a uC cannot handle 30V!
Secondly, I'd like to be able to control the current. Again, is there any way I can do this with a uC, or would it be best with discrete components?
Finally (atm!), how would I go about making it as stable as possible? I know voltage regulators are good - but just how good are they? I'm prepared to put time into this to make a very good end product, so I want to make it as easy to use, with as many features and as stable as possible.
Anything else you think I need, or would be good to have on my power supply, please say so!
Thanks for your time guys, I'm sure you can help.
Sparky
After my failures on Ebay, I decided to have another project. So I thought "why not make a quality power supply?" Not a bad idea, though, seeing as I need an adjustable power supply. Why not make one and learn along the way?
A good oppertunity to aim for a real life application for a uC project!!! Two birds with one stone eh?
However, there are a few things I'm not too sure on.
Firstly, I (think I) know how a variable voltage regulator works. By changing the voltage on the ADJ pin, you can adjust the output voltage. However, how can I do this with higher voltages? I presume a uC cannot handle 30V!
Secondly, I'd like to be able to control the current. Again, is there any way I can do this with a uC, or would it be best with discrete components?
Finally (atm!), how would I go about making it as stable as possible? I know voltage regulators are good - but just how good are they? I'm prepared to put time into this to make a very good end product, so I want to make it as easy to use, with as many features and as stable as possible.
Anything else you think I need, or would be good to have on my power supply, please say so!
Thanks for your time guys, I'm sure you can help.
Sparky