Hey guys!
I m pretty new here and lack of knowledge in the theme, but I did researches, 3 days now, still nothing, so.. The problem I faced with my project is that I had no idea how to reduce the current from 300mA to any lower.
The project is a 12V LED lamp which turns on and off by touch. Literally /see below/. The input is AC but I put a 12V 300mA adapter there, so I got the voltage for the LEDs. I M CLEAR, THAT THE LEDS DRAW THE AMOUNT OF CURRENT THEY NEED! The reduction of the current is not even required on the full circuit. I only need it for the touch switch. Basically what I wanna build, is a FET (IRFZ 44) controlled line of LEDs, and the FET Gate source would have been the 3V /required by the FET to switch is Min.: 2, Max.: 4 Volts/ 5mA. 5mA, to prevent any damage to my body, cuz my fingers would close the circuit to the Gate, which then would allow the power to reach the LEDs. The negative side of the Gate would have been also cut and also closed by my fingers, but the switch loaded with only 250uA, as I understand /I dont mind if anyone takes a look at it/ so it wont harm me.
So. Now that You get my problem, I ll ask it again, can I reduce the current allowed to flow through my 'touch switch', to 5mA from the adapter 300mA's?
Thank You for any kind of helpig hand!
(My english might suck, sorry about that)
I m pretty new here and lack of knowledge in the theme, but I did researches, 3 days now, still nothing, so.. The problem I faced with my project is that I had no idea how to reduce the current from 300mA to any lower.
The project is a 12V LED lamp which turns on and off by touch. Literally /see below/. The input is AC but I put a 12V 300mA adapter there, so I got the voltage for the LEDs. I M CLEAR, THAT THE LEDS DRAW THE AMOUNT OF CURRENT THEY NEED! The reduction of the current is not even required on the full circuit. I only need it for the touch switch. Basically what I wanna build, is a FET (IRFZ 44) controlled line of LEDs, and the FET Gate source would have been the 3V /required by the FET to switch is Min.: 2, Max.: 4 Volts/ 5mA. 5mA, to prevent any damage to my body, cuz my fingers would close the circuit to the Gate, which then would allow the power to reach the LEDs. The negative side of the Gate would have been also cut and also closed by my fingers, but the switch loaded with only 250uA, as I understand /I dont mind if anyone takes a look at it/ so it wont harm me.
So. Now that You get my problem, I ll ask it again, can I reduce the current allowed to flow through my 'touch switch', to 5mA from the adapter 300mA's?
Thank You for any kind of helpig hand!
(My english might suck, sorry about that)