Found in Popular Electronics from the 90s, this circuit detects modulated infrared radiation and serves as a test for remote controls. Infrared sensors equivalent to the one indicated can be used.
January 2017 - Texas Instruments' new TPS54200 integrated circuit for excitation of LEDs with a...
April 2017 - Mouser Electronics is making available this new component for open LED protection...
Using the Linear Technologies LT3080 IC we have a constant current source with a 10 V voltage...