10X10 Dot Bar Equalizer / Marzlishah Zubir @ Omar and Azman Wahab

Zubir @ Omar, Marzlishah and Wahab, Azman (2001) 10X10 Dot Bar Equalizer / Marzlishah Zubir @ Omar and Azman Wahab. [Student Project] (Unpublished)

Abstract

10X10 Dot Bar Equalizer is an electronic device that changes an audio signal to waveform output on an LED display board. This circuit used 100 pieces of LED, one unit of IC LM3915N (Display Dnver), one unit of IC 4017B (Decade Counter), one unit of IC 4011 (Quad 2 Input NAND Gate), three variables resistors and two units of capacitors.
The Display Driver controls the display that interfaced to the LED display panel. Meanwhile the horizontal output was controlled by the Decade Counter and die Quad 2 Input NAND Gate is used to control the speed of the LEDs that had been interfaced by the Decade Counter.
A +9V supply (battery) is used to generate the circuit and the display will blink when an audio signal input pinned into the input point. This circuit acts like the other equalizer circuit but the simplification and the cost make it a bit different from the other equalizer circuit, Any audio system such as television, radio or any audio appliances commonly use this circuit. It is because these device can produce an audio signal and as a result, a beautiful light blinks is displayed through the arrangement of LED’s.

Metadata

Item Type: Student Project
Creators:
Creators
Email / ID Num.
Zubir @ Omar, Marzlishah
97321859
Wahab, Azman
97321960
Contributors:
Contribution
Name
Email / ID Num.
Advisor
Tajuddin, Taniza
UNSPECIFIED
Subjects: T Technology > TK Electrical engineering. Electronics. Nuclear engineering
T Technology > TK Electrical engineering. Electronics. Nuclear engineering > Electronics
T Technology > TK Electrical engineering. Electronics. Nuclear engineering > Electronics > Apparatus and materials
T Technology > TK Electrical engineering. Electronics. Nuclear engineering > Electronics > Apparatus and materials > Waveguides
T Technology > TK Electrical engineering. Electronics. Nuclear engineering > Electronics > Apparatus and materials > Semiconductors
T Technology > TK Electrical engineering. Electronics. Nuclear engineering > Electronics > Apparatus and materials > Detectors. Sensors. Sensor networks
T Technology > TK Electrical engineering. Electronics. Nuclear engineering > Electronics > Apparatus and materials > Transmission lines
T Technology > TK Electrical engineering. Electronics. Nuclear engineering > Electronics > Applications of electronics
T Technology > TK Electrical engineering. Electronics. Nuclear engineering > Electronics > Information display systems
T Technology > TK Electrical engineering. Electronics. Nuclear engineering > Electronics > Photoelectronic devices (General)
Divisions: Universiti Teknologi MARA, Pulau Pinang > Permatang Pauh Campus > Faculty of Electrical Engineering
Programme: Diploma of Electrical and Electronic Engineering
Keywords: Equalizer, Capacitors, Audio System
Date: 9 April 2001
URI: https://ir.uitm.edu.my/id/eprint/50592
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