Friday, May 7, 2010

Photo Timer Circuit Using 555

Here is a circuit that is become useful for photo studio owners. This 555 timer circuit switch on and off a light (exposure lamp) in a specific time. Basically this is a timer circuit however we connect a relay to the output. The relay used here is a 12V dc relay and operating current is less than 200mA.


Click on the image to enlarge


Assemble the circuit on a common PCB and this circuit only consist of cheap components so you can set up the circuit from the scratch.

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