zener Archives - AnalysIR Blog https://www.analysir.com/blog/tag/zener/ All about infrared remote control, IR decoding and more Sun, 14 Feb 2016 22:15:23 +0000 en-US hourly 1 https://wordpress.org/?v=6.9.4 59717642 Constant current infrared LED emitter circuit https://www.analysir.com/blog/2013/11/22/constant-current-infrared-led-circuit/ https://www.analysir.com/blog/2013/11/22/constant-current-infrared-led-circuit/#comments Fri, 22 Nov 2013 17:48:17 +0000 http://www.analysir.com/blog/?p=271 Recently, we have been asked several times about driver circuits for IR LEDs, particularly with good range and coverage. Most of us start off driving infrared leds directly from an Arduino or other MCU using a basic resistor in series with the LED connected to a digital output pin of the MCU.  The next step … Continue reading Constant current infrared LED emitter circuit →

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