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Circuits designed by David Johnson, P.E.
Last Updated on: Wednesday, October 18, 2017 05:04 AM

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More  Light Detectors   Transimpedance Amplifiers

40KHz MODULATED LIGHT DETECTOR
 

If you want even more sensitivity than the above circuit, try this design. When used with a one centimeter square photodiode, you can achieve a range of several hundred feet with a standard TV or VCR remote control module. Note: The LF357 operational Amplifier is no longer available this circuit is for reference only.

Click on Drawing Below to view PDF version of Schematic

Circuit 40KHz Modulated Light Receiver designed by David A. Johnson, P.E. (March 12, 1999)

More  Light Detectors  
Transimpedance Amplifiers

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