Hi all,
I have a power supply powering a load. I built a detachable connector to connect/disconnect the power supply from the load. When the load is powered, it doesn't make a sound or give visual indication that it is on. I would like to add an indicator LED that lights up to show that the load is receiving power, when the power supply is connected. But I don't know how to do this exactly. I would like to do this without changing the voltage/current to the load.
Details:
Power supply is 12 volts
Load draws 0.37 Amps
LED has forward voltage of 2volts, draws 20mA
Simplified diagram:
+ -----LED-----[connector]---|The |
gnd -----------[connector]---|Load|
I have a power supply powering a load. I built a detachable connector to connect/disconnect the power supply from the load. When the load is powered, it doesn't make a sound or give visual indication that it is on. I would like to add an indicator LED that lights up to show that the load is receiving power, when the power supply is connected. But I don't know how to do this exactly. I would like to do this without changing the voltage/current to the load.
Details:
Power supply is 12 volts
Load draws 0.37 Amps
LED has forward voltage of 2volts, draws 20mA
Simplified diagram:
+ -----LED-----[connector]---|The |
gnd -----------[connector]---|Load|