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IR Sender LED

 
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Hicom



Joined: 08 Jan 2010
Posts: 2
PostPosted: Fri Jan 08, 2010 2:02 pm    Post subject: IR Sender LED Reply with quote
Is the rear output current limited, means can I connect a LED or IR LED directly or is an additional resistor necessary?
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Hicom



Joined: 08 Jan 2010
Posts: 2
PostPosted: Wed Jan 20, 2010 7:54 pm    Post subject: Re: IR Sender LED Reply with quote
I have made some measures:
I connected a red LED and an IR LED without a serial resistor. (Only a 1 Ohm type for the current measurment). The LED current was in both cases limited to appr. 30mA. So there is no need to build in a serial resistor to the LED and it' easy to build an external IR transmitter.
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