Design And Construction Of An Audio-Controlled Disco Light Controller Circuit
The design and construction of an audio-controlled disco light controller circuit involve integrating audio input with a lighting system to synchronize the light patterns with the beat of the music. This entails creating a circuit that detects audio signals, processes them to extract rhythm information, and then drives the lighting elements accordingly. The circuit typically comprises an audio sensor to capture sound waves, an amplifier to boost the signal, and a microcontroller or dedicated circuitry to analyze the audio data. Additionally, LED drivers or other lighting control components are employed to modulate the intensity or color of the lights in response to the music tempo. The integration of these components requires careful consideration of signal processing algorithms, hardware interfacing, and power management to ensure reliable and responsive performance. By implementing this circuit, enthusiasts can enhance the ambiance of their disco setups, creating immersive and dynamic lighting effects synchronized with the rhythm of the music, thereby enriching the overall experience for partygoers and performers alike.
This work is on a simple audio-controlled disco light controller circuit. In this work, a standard audio power amplifier output, which usually drive loudspeaker, can used to drive this disco light circuit. With this circuit we don’t need light jockey anymore, because the flashing of the light will be directly controlled by the music signal itself.
TABLE OF CONTENTS
COVER PAGE
TITLE PAGE
APPROVAL PAGE
DEDICATION
ACKNOWELDGEMENT
ABSTRACT
CHAPTER ONE
1.0 INTRODUCTION
1.1 BACKGROUND OF THE PROJECT
- PURPOSE OF THE PROJECT
- AIM OF THE PROJECT
- OBJECTIVE OF THE PROJECT
- PURPOSE OF THE PROJECT
- LIMITATION OF THE PROJECT
- ADVANTAGES OF THE PROJECT
- PROBLEM OF THE PROJECT
- APPLICATION OF THE PROJECT
- RESEARCH QUESTION
- PROJECT ORGANISATION
CHAPTER TWO
LITERATURE REVIEW
- OVERVIEW OF THE STUDY
- REVIEW OF THE RELATED STUDY
CHAPTER THREE
3.0 CONSTRUCTION METHODOLOGY
3.1 BASIC OF THE SYSTEM
3.2 BLOCK DIAGRAM OF THE SYSTEM
3.3 SYSTEM OPERATION
3.4 CIRCUIT DIAGRAM
3.5 CIRCUIT DESCRIPTION
3.6 DESCRIPTION OF COMPONENTS USED
3.7 POWER SUPPLY UNIT
CHAPTER FOUR
4.0 TESTING AND RESULTS
- CONSTRUCTION PROCEDURE AND TESTING
- INSTALLATION OF THE COMPLET DESIGN
- ASSEMBLING OF SECTIONS
- TESTING OF SYSTEM OPERATION
- COST ANALYSIS
CHAPTER FIVE
- CONCLUSION
- RECOMMENDATION
- REFERENCES
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August 28, 2014 Hamuro
Figure 1. Assembled Audio Controlled Disco Light Circuit
This work is on a simple audio-controlled disco light controller circuit. In this work, a standard audio power amplifier output, which usually drive loudspeaker, can used to drive this disco light circuit. With this circuit we don’t need light jockey anymore, because the flashing of the light will be directly controlled by the music signal itself. The schematic diagram of the circuit is shown in the Figure 2.
To ease the explanation, the circuitry can be grouped into several functional parts (sub-systems). First, the input interface and isolation circuitry, consist of audio jack and small power transformer. The small power transformer is chosen since the input-output audio transformers are getting rare this days, so we can use almost any small power transformer (around 100-350mA). This sub-system does the signal transfer while isolating the high line voltage from the audio input equipments. Please be aware that the safe-to-touch part of this circuit are only the input jack and its connected side of the transformer, the rest are dangerous!
The second part making up the system, is the attenuator, consist of fixed resistor R1 and variable resistor VR1. The adjustment of the variable resistor controls the proper biasing level of the TR1’s base, which is finally controlling the triggering level of the SCR 5P4M. Look at the picture of the assembled circuit, the variable resistor (the potentiometer) is installed with a plastic knob to avoid the lethal electric shock!
The third part is the buffering rectifier TR1, which provide more stable drives for the final driver SCR1. This circuit is powered by series resistor R3, which is limited to 9,1V by DZ1. This resistor and diode doesn’t filter the ripple of the half-wave rectified voltage, it act just like a limiter that limits the voltage at 9,1V, it is fine since the SCR will keep active until the gate voltage down to zero, regardless of the gate voltage stability.
The last part, is the final drive, the SCR itself. It provides the switching function of the disco lamp power. The type of the SCR is not critical, as long as you choose the right voltage and amperage rating then it will be okay. Just search the datasheet of the locally available SCR types to make sure it fits your need.
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