:idea:
please give me auto turn off battery charger project documentation



please urgent sena the auto turn off battery charger project documentation ....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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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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Variable DC power supply is one of the projects that each student of the electronics should build. Build your own power supply is fun and use it throughout your building projects is the reward of your success. This project uses a transformer to reduce the incoming AC voltage to 12.5V AC.

This circuit is designed for 240VAC input voltage. If 110VAC is necessary, a power transformer 110 / 12.5 should be used. Buck of AC voltage is then rectified by a diode bridge. The rectified DC voltage is smoothed by means of an electrolytic capacitor 2 200uF ....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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ppt presentation of wireless battery charger using microwaves rf to dc conversion

Battery life of mobile phone is always been a problem for manufacturers. People are complaining about their mobile s battery life, that they don t have long battery life and they have to charge their phone several times. Portable electronic devices are very popular nowadays. As the usage of these portable electronic devices is increasing, the demands for longer battery life are also increasing. These batteries need to be recharged or replaced periodically. It i ....etc

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i want assembly lang coding for this pls sent me as soon as posible this is my mail id [email protected] ....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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to get information about the topic wireless battery charger full report ppt and related topic refer the page link bellow
http://seminarsprojects.in/attachment.php?aid=1912

http://seminarsprojects.net/Thread-wireless-charger-full-report

http://seminarsprojects.net/Thread-wireless-battery-charger-chip-for-smart-card-applications-full-report?pid=27611#pid27611

http://seminarsprojects.net/Thread-wireless-charging-of-mobile-phone-using-microwaves--17724 ....etc

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A battery charger with maximum power point
tracking function for low-power photovoltaic system applications


Huang-Jen Chiu1, Yu-Kang Lo1, Ting-Peng Lee1, Qing Su Chen1, Wen Long Yu1,
Jian-Xing Lee1, Frank Shih2 and Shann-Chyi Mou3
1Department of Electronic Engineering, National Taiwan University of Science and Technology, Taipei, Taiwan
2Macroblock, Inc., Taiwan
3Department of Mechanical Engineering, Ching-Yun University, Taipei, Taiwan


ABSTRACT
A battery charger with MPPT function for low-power PV system applications ....etc

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