Hey guys
I'm trying to build a circuit but there are so many components it's difficult to choose the most effective one and the way to apply it.
So I basically have 16 LED's and I want to attach 4 in parallel with one another and connect it in series to another 4(which are parallel) and so forth. So basically it looks like four bright lights. The LED's I am using are the white 5mm one's with a maximum voltage of 3V and 20mA forward current. I am supplying 12V power from an independent voltage source. Now my question is my Professor wants us to use transistor or transistor(s) in this circuit. I have studied about PNP and NPN transistors but their function in circuits still confuses me. I also need to implement a 6 input dipswitch but that will only turn the circuit on or off. He said the use of the dipswitch will be controlled by a microcontroller so that is not something I am worrying about right now.
My main concern is how exactly do I start this is what I have so far. I want to fully understand the circuit I end up deisgning.
Please help
I'm trying to build a circuit but there are so many components it's difficult to choose the most effective one and the way to apply it.
So I basically have 16 LED's and I want to attach 4 in parallel with one another and connect it in series to another 4(which are parallel) and so forth. So basically it looks like four bright lights. The LED's I am using are the white 5mm one's with a maximum voltage of 3V and 20mA forward current. I am supplying 12V power from an independent voltage source. Now my question is my Professor wants us to use transistor or transistor(s) in this circuit. I have studied about PNP and NPN transistors but their function in circuits still confuses me. I also need to implement a 6 input dipswitch but that will only turn the circuit on or off. He said the use of the dipswitch will be controlled by a microcontroller so that is not something I am worrying about right now.
My main concern is how exactly do I start this is what I have so far. I want to fully understand the circuit I end up deisgning.
Please help
Attachments
-
466 bytes Views: 71