Skylined
New Member
Hi all, I'm new here and I'm also in the process of learning electronics.
Sorry if my english isn't the best.
Unfortunatly I didn't learn anything about voltage regulators, well, almost nothing, my teacher just showed it to me like "see, this is a voltage regulator, do this and that and see what it does", and that was all I've learnt about them... nothing.
I've been searching for schematics to make a fan voltage controller, I came with a lot of schematics but I would like to slightly moddify some of them.
I also have some other problems, I cannot get 1k pots, this is a horrible country when talking about PC and Electricity/Electronics.
What I would like to do is to use a LM317 to regulate my fan voltage from 7V to 12V (I know it won't reach 12V).
I would also like to have a thermistor to control the voltage, and a swtich to select manual controlled (pot) or temperature controlled (thermistor).
Another switch to turn it on and off.
This will work with the 12V form a PC PSU.
I would also like to ask those that help me, to explain how they calculated everything, which things should I have in mind, etc. That way I'll start learning about this little things.
PS: I have some projects to show, do I have to do it in this part of the forum?
Sorry if my english isn't the best.
Unfortunatly I didn't learn anything about voltage regulators, well, almost nothing, my teacher just showed it to me like "see, this is a voltage regulator, do this and that and see what it does", and that was all I've learnt about them... nothing.
I've been searching for schematics to make a fan voltage controller, I came with a lot of schematics but I would like to slightly moddify some of them.
I also have some other problems, I cannot get 1k pots, this is a horrible country when talking about PC and Electricity/Electronics.
What I would like to do is to use a LM317 to regulate my fan voltage from 7V to 12V (I know it won't reach 12V).
I would also like to have a thermistor to control the voltage, and a swtich to select manual controlled (pot) or temperature controlled (thermistor).
Another switch to turn it on and off.
This will work with the 12V form a PC PSU.
I would also like to ask those that help me, to explain how they calculated everything, which things should I have in mind, etc. That way I'll start learning about this little things.
PS: I have some projects to show, do I have to do it in this part of the forum?