20-12-2012, 02:43 PM
HIGH VOLTAGE FUSE BLOWN INDICATOR WITH VOICE BASED ANNOUNCEMENT SYSTEM
HIGH VOLTAGE.docx (Size: 22.69 KB / Downloads: 32)
AIM:
The main aim of this project is to indicate the high voltage and current by using Voice IC.
PURPOSE:
The purpose of the project is to indicate the high voltage and current when the overload is occurred by using Voice IC.
DESCRIPTION:
Now-a-days technology has developed to a large extend. At the same time the need for systems with automation and high security are preferred. In this project we are indicating high voltage and low voltage of loads by using voice IC. In this project for demo purpose we are using two bulbs as loads. We are using current sensor to sense current consumed by loads and ADC is to convert analog signal into digital. That converted data is given to microcontroller.MC checks whether current values increases from its threshold level or not. If so, then it gives voice announcement by using speaker.
This project uses regulated 5V, 500Ma power supply, 7805 three terminal voltage regulator is used for voltage regulation. Bridge type full wave rectifier is used to rectify the ac output of secondary of 230/12V step down transformer.
HARDWARE COMPONENTS:
• Micro controller
• Power supply
• LCD
• Relay
• Bulbs
• Current Sensor
• ADC
• Voice IC
• Speaker