WIRE-LESS SPEAKERS TECHNOLOGY THROUGH MINI TRANSMITER

WIRELESS SPEAKERS FORM AMPLIFIERS AND MANY AUDIO ETC......

FROM AN AMPLIFIER AN TRANSMITTER WILL BE MODULATED AND SEND INTO SPACE WITH AN TRANSMITTER AND THESE SIGNALS WILL BE MODULATED INTO SPECIFIC FREQUENCY.AND RECEIVED BY SPEAKERS WHICH WERE WIRE-LESS AND DE-MODULATED AND CONVERT INTO SOUND WAVES..............

BY
   HARSHA
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dev harsha contact 7993987593 said…

nice

7 November 2013 at 05:30

Fire Alarm Circuit

This circuit alerts us when there is a fire accident at home by ringing a siren sound . You might have seen fire alarms earlier but this is quite different as it generates a siren sound instead of a buzzer and also it uses basic components to generate that siren sound. We are aware that there are many integrated circuits which can be used to generate the siren effect but we preferred to use basic electronics components like resistors, capacitors and transistors to generate it so that you will clearly understand the internal working of it and it will be much useful for you as you will gain more knowledge by analyzing it instead of simply going or pre designed integrated circuits. Circuit Diagram of Fire Alarm: Description: This circuit uses a thermistor to sense the temperature. When it senses that the temperature of the environment is increasing above a given threshold, then it gives a signal. The temperature at which the circuit detects fire can be adjusted ...

LED DIMMER WITH CIRCUIT DIAGRAM

In this circuit, at the starting LED glow slowly, then grown brighter and once again slowly it became dim. The basis of the whole circuit is an operational amplifier IC named LM358. Circuit Diagram of LED Lamp Dimmer: LED Lamp Dimmer Circuit Diagram – ElectronicsHub.Org Working of LED Lamp Dimmer Circuit: LM358 is mainly made up of a package which contains two not dependent operational amplifiers of high gain. The most significant attribute of these IC is that we have no need of the independent power supply for the functioning of each comparator till the large range of the power supply. LM358 can be employed like transducer amplifier or can be worked as DC gain block etc. The huge DC voltage gain of the LM358 IC is 100db. For the only power supply this IC can work on the voltage range of 3V to 32V while for the twin power supply this IC work on the range of ±1. 5V to ±16V . And moreover large output voltage is also supported by it. Related Post: PWM L...

mobile jammer with circuit diagram

Simple Mobile Jammer Circuit Diagram: Simple Mobile Jammer Circuit Diagram Cell Phone Jammer Circuit Explanation: If you understand the above circuit, this circuit analysis is simple and easy. For any jammer circuit, remember that there are three main important circuits. When they are combined together, the output of that circuit will work as a jammer. The three circuits are RF amplifier. Voltage controlled oscillator. Tuning circuit. So the transistor Q1, capacitors C4 & C5 and resistor R1 constitute the RF amplifier circuit. This will amplify the signal generated by the tuned circuit. The amplification signal is given to the antenna through C6 capacitor. Capacitor C6 will remove the DC and allow only the AC signal which is transmitted in the air. When the transistor Q1 is turned ON, the tuned circuit at the collector will get turned ON. The tuned circuit consists of capacitor C1 and inductor L1. This tuned circuit will act as an oscillator with zero resi...

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