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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i need this abstrct for my project. i need atleast 20 pages ....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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INTRODUCTION-:
This Project Multi-Pattern Running light is used to generate several designs of Running Lights. We use ten LED's for display. The designs can be selected by using two switches UP and DOWN. The 8 bit Microcontroller is used to control all the operations. It control the LED's though the Ports.
The above system is monitored and controlled by the 8 bit microcontroller AT89C2051. The Microcontroller continuously monitors the Switches and switch on/off the LED's according to the Program. The Power for the c ....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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sir,
i want to know ic number and circuit diagram for 32 multi effect led lighting

Email ID [email protected] ....etc

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Which it use 12 LEDs only. There are a interated running form. To begin with LED flash from the center to the edge on both sides. Then, to runs back to the center again. Like this indefinitely. Until the battery will fully lose or the switch opened circuit.

Simple 12 LED running using CD4017 and NE555

How it works
This circuit include a few parts. It may be divided into two section as follows:
1. the pulse signal generator
2. The counter
1. The pulse signal generator section include IC1-555,R1, VR1, C1 and C2. The output signal at pin ....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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can u pls give me the full report including the source code :-) ....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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