![]() ![]() Common Anode Type: In this type of display all the anodes of the seven LEDs are connected to battery or +Vcc and LED displays digits when some ‘LOW’ signal is supplied to the individual cathodes.īut, seven segment display does not work by directly supplying voltage to different segments of LEDs.Common Cathode Type: In this type of display all cathodes of the seven LEDs are connected together to the ground or -Vcc(hence,common cathode) and LED displays digits when some ‘HIGH’ signal is supplied to the individual anodes.ISRO CS Syllabus for Scientist/Engineer Exam.ISRO CS Original Papers and Official Keys.GATE CS Original Papers and Official Keys.
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