Hi all,
I would like to make a simple 10x LED circuit with a potentiometer to control the brightness.
I want to use some 10mm blue LED's,
Spec:
Forward Voltage 3.2v
Power Dissipation 70mW
Peak Forward Current 100mA
Continuous Forward Current 20mA
I was thinking a circuit like this would be best:
Sry i'm a total noob at this, never rly understood how to calculate resistance. (think i need 470 Ohm 1/2W for each LED)
Can someone advise me what resistors, potentiometer and power supply to use? (3-12V would be convenient for me)
Is this the best way to rig up this circuit?
Thanks.
Plecc.
I would like to make a simple 10x LED circuit with a potentiometer to control the brightness.
I want to use some 10mm blue LED's,
Spec:
Forward Voltage 3.2v
Power Dissipation 70mW
Peak Forward Current 100mA
Continuous Forward Current 20mA
I was thinking a circuit like this would be best:
^etc up to x10^
|----(resistor?)------(+LED-)------|
|----(resistor?)------(+LED-)------|
|----(resistor?)------(+LED-)------|
|(Potentiometer)| |---------------|
| |
(+) (-)
(Power Supply 9-12V)
|----(resistor?)------(+LED-)------|
|----(resistor?)------(+LED-)------|
|----(resistor?)------(+LED-)------|
|(Potentiometer)| |---------------|
| |
(+) (-)
(Power Supply 9-12V)
Sry i'm a total noob at this, never rly understood how to calculate resistance. (think i need 470 Ohm 1/2W for each LED)
Can someone advise me what resistors, potentiometer and power supply to use? (3-12V would be convenient for me)
Is this the best way to rig up this circuit?
Thanks.
Plecc.