Hi folks,
Well what can I say, I saw a videos on utube of some guys who have madee their own torches and I have always wondered how electronics work so thought I would try and teach myself.
I have read many many websites and understand the basics but think I may have jumped th gun a little with this project......but need to finish it so its not a waste of money...then I will take a few steps back!
Please if anyone can help me I would be soooooo greatful!!
So the project is I want to make a torch and have the following components;
Seoul P7 LED with a constant power current power supply of 2800mA. I have the hint sink and most other little bits I need such as the relector etc but....
For the power supply I have either a 14.8v battery or can buy a 9.6v battery. The website suggests using a resistor (9.6v - 2Ohms with an 18 watt power consumption), but I cant find these online and am sure I am missing something??
Although I have read the Ohms law several times I am really struggling to put it into practice.......
I think I understand that a I need to reduce the current to the LED with a resistor but not sure which one to use?
Any help anyone can give me would be absolutley brilliant! I would even consider paying for some Skype tuition if thats what it takes as i would love to crack it!!
Well what can I say, I saw a videos on utube of some guys who have madee their own torches and I have always wondered how electronics work so thought I would try and teach myself.
I have read many many websites and understand the basics but think I may have jumped th gun a little with this project......but need to finish it so its not a waste of money...then I will take a few steps back!
Please if anyone can help me I would be soooooo greatful!!
So the project is I want to make a torch and have the following components;
Seoul P7 LED with a constant power current power supply of 2800mA. I have the hint sink and most other little bits I need such as the relector etc but....
For the power supply I have either a 14.8v battery or can buy a 9.6v battery. The website suggests using a resistor (9.6v - 2Ohms with an 18 watt power consumption), but I cant find these online and am sure I am missing something??
Although I have read the Ohms law several times I am really struggling to put it into practice.......
I think I understand that a I need to reduce the current to the LED with a resistor but not sure which one to use?
Any help anyone can give me would be absolutley brilliant! I would even consider paying for some Skype tuition if thats what it takes as i would love to crack it!!