To get full information or details of U. Eb (electrical) wireless billinng system through power line (230v ac line) Refere please have a look on the pages

http://jee.ro/covers/art.php?issue=WK1214460730W4863333a34151

http://research.ijcaonlinevolume45/number7/pxc3879125.pdf

http://enggjournalsijet/docs/IJET10-02-05-24.pdf

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I need ppt on temperature based ceiling fan speed control system 230v ac motor using microcontroller 8051 to make mini project i also require circuit diagram and assembly language program.
....etc

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lm317 12v battery charger

Automatic Battery Charger Circuit Design:

This automatic battery charger circuit design mainly involves two sections power supply section and load comparison section.

The main supply voltage 230V, 50Hz is connected to the primary winding of the center tapped transformer to step down the voltage to 15-0-15V.

The output of the transformer is connected to the Diodes D1, D2. Here diodes D1, D2 are used to convert low AC voltage to pulsating DC voltage. This process is also called as rectification. The pulsating DC vol ....etc

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Presented By

RAKESH KUMAR
DEEPAK KUMAR
SONA SINGH
RANJAN KUMAR
UNDER THE GUIDENCE OF :PRO - REKHA CHOUDHARY



TOPICS TO STUDY

What is an inverter
History of inverter
Application of inverters
Use of inverters
Classification of inverter
Single phase full wave inverter
Static Inverter
Dynamic inverter
Characteristics of good inverter
Conclusion

INTRODUCTION
An inverter is a device that changes or inverts direct current (DC) input to altern ....etc

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Remote Control of Electrical Appliance using
Wireless Technology GSM

Introduction
Wide growth of wireless communication made me think of
using the mobile phones for controlling the electrical
appliance .This can be done simply by sending an SMS from
the users handset .The system do not require any wired
connections for the automatic control of electrical appliance
it can just be done with the help of a Micro controller
interfaced with the GSM modem .A system being proposed
is economical, robust to use and portable. An individual ....etc

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Introduction

An inverter is an electrical device that converts direct current (DC) to alternating current (AC); the converted AC can be at any required voltage and frequency with the use of appropriate transformers, switching, and control circuits.
Static inverters have no moving parts and are used in a wide range of applications, from small switching power supplies in computers, to large electric utility high-voltage direct current applications that transport bulk power. Inverters are co ....etc

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http://scribddoc/51034179/LIVE-PROJECTS#scribd

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3. BLOCK DIAGRAM OF 12V DC BOOST REGULATOR
The figure shows the simple block diagram of the 12V dc boost regulator. Each block can be separately assembled and checked. The functioning of each block is discussed below.
Figure 3.1 Block Diagram of 12V DC Boost Regulator
3.1 DC SUPPLY
It is the external dc input applied to the circuit. The boost regulator circuit corrects variations in the supply voltage. Additional current is drawn by the boost circuit to get the required output voltage.
3.2 LOW VOLTAGE ....etc

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Step down transformers are designed to reduce electrical voltage. Their primary voltage is greater than their secondary voltage. This kind of transformer steps down the voltage applied to it. For instance, a step down transformer is needed to use a 110v product in a country with a 220v supply.

Step down transformers convert electrical voltage from one level or phase configuration usually down to a lower level. They can include features for electrical isolation, power distribution, and control and instrumentation applications. Step down tra ....etc

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