AC Load Interface to Microcontroller

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Published 7 Jan 2009
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Using AC loads through opto couplers from microcontrollers.Demo gives an idea of using zero cross type led ...
Using AC loads through opto couplers from microcontrollers.Demo gives an idea of using zero cross type led triac combination opto coupler MOC 3041,43,61,63 series.However MOC 3020,21 which are non zero cross type having led diac combination  should be used for firing angle controll type circuits.For inductive load use one 0.1 uF 600 volt capacitor in series with a 100 ohm 1 watt resistor across the main triac.
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