giftiger_wunsch
New Member
Hi guys,
Simple question: I have recently been experimenting with a couple of simple circuits which use 9V batteries to transmit or receive an IR signal, but I have noted that the IR transmitter overheats very rapidly if on for more than about 2 seconds. I have also noted that most remote controls appear to solve this problem by flicking the transmitter on and off rapidly.
My initial thought about how to do this would be to use alternating current instead of direct current provided by the battery: since it's an LED, the forward current would power the transmitter, while the reverse current would be resisted and have no effect, causing the transmitter to flicker on an off at the same frequency as the current. Is this a valid solution or is there a hole in my logic?
Thanks in advance.
Simple question: I have recently been experimenting with a couple of simple circuits which use 9V batteries to transmit or receive an IR signal, but I have noted that the IR transmitter overheats very rapidly if on for more than about 2 seconds. I have also noted that most remote controls appear to solve this problem by flicking the transmitter on and off rapidly.
My initial thought about how to do this would be to use alternating current instead of direct current provided by the battery: since it's an LED, the forward current would power the transmitter, while the reverse current would be resisted and have no effect, causing the transmitter to flicker on an off at the same frequency as the current. Is this a valid solution or is there a hole in my logic?
Thanks in advance.