Liamlambchop
- Sep 19, 2011
- 14
- Joined
- Sep 19, 2011
- Messages
- 14
Hey guys I have the setup, as seen in the attached photo, and the circuit is not functioning as I'd like. The infrared emitting diode is not emitting as far as it should be, hence I'm concluding that it isn't getting enough current through it.
I am hoping to have about 150mA going through the infrared emitting diode, which is pulsing at 38kHz (on for 13us, off for 13us). The pulsing is controlled by an arduino microcontroller which is giving the 5V output on the base of the transistor.
I am concerned because the arduino (5V on the base) and my 12V power supply have different grounds. I think this may be causing my problem.
Can you guys help me with this please?
Thanks a lot!
I am hoping to have about 150mA going through the infrared emitting diode, which is pulsing at 38kHz (on for 13us, off for 13us). The pulsing is controlled by an arduino microcontroller which is giving the 5V output on the base of the transistor.
I am concerned because the arduino (5V on the base) and my 12V power supply have different grounds. I think this may be causing my problem.
Can you guys help me with this please?
Thanks a lot!