A Simple Current Amplifier
Intro: A Simple Current Amplifier
a amplifier of current . when we touch the wires it glows but without the circuit it will not glow brightly.you can make it on a pref board or without it i am making it with a pref board.
STEP 1: Things Required
things required-
1] 560 ohm resistor
2] NPN transisor
3] led
4]9v battery
5] battery snap
1] 560 ohm resistor
2] NPN transisor
3] led
4]9v battery
5] battery snap
STEP 2: The LED
you can use a diffused led if you want much of a glow . if you want a beam of light use a water clear type.
STEP 3: The Circuit Digram
solder the circuit with the circuit digram.
STEP 4: All Done!!!
you have made your current amplifier.
touch the both touch wires and the led glows brightly
without the circuit it will be very dim.
touch the both touch wires and the led glows brightly
without the circuit it will be very dim.
STEP 5: Update
solder a 100k resistor between the base of the transistor and the touch pad
10 Comments
vina1991 8 years ago
its a current amplifier?
MechackM 8 years ago
ReallyMoanViolin 9 years ago
This is the current amplifier?? this is only a switch transistor.
Gernerakos 11 years ago
samalert 11 years ago
Now what i need is your circuitry to amplify the current.
Can you please let me know if i can use yours to get max of 12v also what type of transistor or resistor to use to safeguard my LED strip and not burn my CAR
Pranavthegreat 11 years ago
robot1398 11 years ago
Rockser11 13 years ago
simmer65 13 years ago
If you want the LED to glow, remove the transistor and reduce the resistor. You will get about a 2v drop across the LED and 7v across the battery. To achieve a 50mA current (the brightness of an LED is determined by the current through it), use the equation V=IR or 7 = .05 * R......R=140 ohms.
zazenergy 13 years ago