ABSTRACT
The aim of this paper is to describe the implementation of a lowpower,low-cost 16-bit RISC microcontroller that will act as thecore of a stand-alone security system. The controller is designedto provide moderate-high security at very low cost and to be ableto operate independent of a database. It is designed using 1.5-mSCMOS process from MOSIS and operates at a frequency of 12.5MHz.
KeywordsCard readers, ASICs, security systems, low-power
1. INTRODUCTION
Current access control systems that authorize access to a bu ....etc

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The efficiency of fuel cell is higher than the Carnot engine. To date, cost is the daunting factor for making the proton exchange membrane fuel cells (PEMFC) commercially viable in appliances. Over the years, a significant research activity has been witnessed in cutting down the cost that is involved in making the individual components of a fuel cell. However, relatively fewer efforts have been put into minimization of the cost of integrating a PEM fuel cell (PEMFC) system. This work is focused on the reduction in cost of PEMFC stack system (st ....etc

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High Frequency Low Cost DC-AC Inverter Design with Fuel Cell
Source for Home Applications
ABSTRACT:
This paper presents a new design of highfrequency Dc/Ac inverter for home applications using fuel cellsor photovoltaic array sources. A battery bank parallel to the DClink is provided to take care of the slow dynamic response of thesource. The design is based on a push-pull dc/dc converterfollowed by a full-bridge PWM inverter topology. The nominalpower rating is 10kW. Actual design parameters, procedure andexperimental results of a 1 ....etc

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Low Cost Smart Cam Design


1.Introduction
This paper proposes a very low cost vision system that is able to perform image processing tasks with certain processing algorithms.

Digital cameras include dedicated digital image processing chips to convert the raw data from the image sensor into a color-corrected image organized in a standard image file format.

The images flow will be also enriched with a collection of information that ranges from the position of recognized objects to their color, size or shape ....etc

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