Positive Switching Transistor???

i have realized an IR transmitter and receiver circuit using 555c, bc547, tsop1738, n required resistors and capacitors. I am getting the required output but the problem now is that, the output obtained from the collector of BC547 is negative DC supply. is there any possible way so that i could obtain positive switching instead negative supply??

by Vichu8902
June 05, 2013

Can you make your circuit public or unlisted so that we can see what you're trying to do.

No circuit: no help!


by signality
June 06, 2013

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