intelligent drunk driver detection and automotive security using lpc2148
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INTRODUCTION
The father of scientific management Taylor's (1911) approach to job satisfaction was based on a most pragmatic & essentially pessimistic philosophy that man is motivation by money alone. That the workers are essentially 'stupid & phlegmatic' & that they would be satisfied with work if they get higher economic benefit from it.
But with the passage of time Taylor's solely monetary approach has been changed to a more humanistic approach. It has come a long way from a simple explanation based on money to ....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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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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Abstract
The development of four-stroke, spark-ignition engines that are designed to inject gasoline directly into the combustion
chamber is an important worldwide initiative of the automotive industry. The thermodynamic potential of such engines for
significantly enhanced fuel economy, transient response and cold-start hydrocarbon emission levels has led to a large number of
research and development projects that have the goal of understanding, developing and optimizing gasoline direct-injection
(GDI) combustion systems. The proces ....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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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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Using Nonvolatile Static RAMs



Abstract: Vast resources have been spent by the semiconductor industry to build high-speed nonvolatile random-access read/write memory. This effort was undertaken because NV SRAM offers advantages over other memory devices such as DRAM, SRAM, EEPROM, Shadow RAM, EPROM, and ROM. NV SRAM was developed to meet specific needs of the design engineer. This article describes applications requiring this type of memory and compares this memory technology to o ....etc

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