First things first: I'm very new to electronics
Getting right into it: I am trying to use an N-channel MOSFET as a LED strip light switch, with 12V at 1.5A supplied to the source and 4.5V from a battery supplied to the gate:
However, I find that even without connecting the wires to my battery, my mosfet seems to allow flow from source to drain.
I'm hoping that someone may be able to tell me what is wrong and how I can fix it. The MOSFET I have is an FQU13N10L.
In addition I also have some particulars about the answers:
- This circuit is just a test for a larger project which involves about 60 MOSFETs on a breadboard, which cramps my breadboard. I need a solution that does not involve resistors or capacitors that will cramp up a lot of space on my bread board;
- Second, if needed I can change the 4.5V to be 3V or 3.3V by using different batteries;
- Third, it may be important to note that the gate voltage of 4.5V is controlled by a GPIO pin on a PIC microcontroller. I do not know if that matters but I need nothing to go through the 4.5 lines that may hurt the microcontroller, which can not handle 12V.
I apologize if I sound demanding in this, I am just trying to be as clear in my purpose as possible, thank you for all your answers