L
Luca
Guest
Veery basic question:
I would like to connect a 7.5 Volt Lamp (radio shack) on a 9V outpuut
(Lego Mindstorms).
What's the best way to prevent the lamp from burning?
Is it sufficient to put a resistor in series? If so, what resistance value?
Or should I connect the lamp trough a voltage devider to bring the voltage
down to, say, 7V?
If so, which resistors values should I use? (I understand that a general
rule for voltage dividers is to use the lowest resistance I can use
compatibly witht he load).
Thank you in advance
Luca
I would like to connect a 7.5 Volt Lamp (radio shack) on a 9V outpuut
(Lego Mindstorms).
What's the best way to prevent the lamp from burning?
Is it sufficient to put a resistor in series? If so, what resistance value?
Or should I connect the lamp trough a voltage devider to bring the voltage
down to, say, 7V?
If so, which resistors values should I use? (I understand that a general
rule for voltage dividers is to use the lowest resistance I can use
compatibly witht he load).
Thank you in advance
Luca