CONTENTS 1. INTRODUCTION 2. DESIGN PRINCIPLE 3. CIRCUIT DESCRIPTION a. Power supply b. Under voltage/over voltage detector c. NOR Gate (OR and NOT gate) d. Bi-stable / Latch e. Relay driver f. Buzzer Driver 4. FUTURE EXPANSION 5. CONCLUSION INTRODUCTION The protection system is one o the important aspect on which major manufacturers is concentrating. The companies like L&T‚ SIMENS etc. The protection system not only provides durability
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Lovely Professional University‚Punjab Format For Instruction Plan [for Courses with Lectures and Tutorials Course No ece201 Cours Title ELECTRONIC DEVICES AND CIRCUITS Course Planner ECE201 ELECTRONIC DEVICES AND CIRCUITS 15330 :: Ishan Luthra Text Book: Other Specific Book: Lectures Tutorial Practical Credits 3 1 0 1 JACOB MILLMAN & HALKIAS‚ INTEGRATED ELECTRONICS: ANALOG & DIGITAL CIRCUIT SYSTEMS‚ Mc GRAW HILL‚ 1991 EDITION‚ 41 PRINT‚ 2005. 2 1. ROBERT
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MP52 www.wineyard.in Intelligent IR & LDR based automatic High way light control system Technical Specifications: Title of the project : Intelligent IR based automatic highway lighting Domain : Embedded Systems Design Power Supply : +5V‚ 500mA Regulated Power Supply Sensors : IR pair‚ LDR Load : Highway lighting system Applications : Street lights‚ Industrial and House Hold Applications Developed By : M/S Wine Yard Technologies
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80’s ‣ Circuit design‚ layout‚ and processing tightly linked. ‣ Logic design and layout was “random” ‣ Chip design was the domain of industry (Fairchild‚ Intel‚ Texas Instruments‚ …). These were IC processing companies. Those who controlled the physics controlled the creative agenda! Federico Faggin‚ Ted Hoff‚ Stan Mazor Introduced to help sell memory chips! The Intel 4004 microprocessor‚ which was introduced in 1971. The 4004 contained 2300 transistors and performed 60‚000 calculations
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involves several toxic‚ flammable and explosive chemicals. Many of those components supposes a health hazard to workers involved in manufacturing of solar cells who must be protected from exposure to materials used even if they are relatively inert like silicon. Also‚ solar farm locations must be carefully selected to reduce competition with agriculture and soil erosion. Finally‚ because solar PV semiconductor manufacturing processes have roots in the electronics industry‚ many of the chemicals found in
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resistance semiconductor material. When light hits the device‚ the photons give electrons energy. This makes them jump into the conductive band and thereby conduct electricity. A photoresistor or light-dependent resistor (LDR) or photocell is a light-controlled variable resistor. The resistance of a photoresistor decreases with increasing incident light intensity; in other words‚ it exhibits photoconductivity. A photoresistor can be applied in light-sensitive detector circuits‚ and light- and dark-activated
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1 CHAPTER 1: INTRODUCTION TO ASIC AND STANDARD IC SECTION 1.1: INTRODUCTION An ASIC is an application-specific integrated circuit. Some digital logic ICs and their analog counterparts are standard parts‚ or standard ICs .They are readily available in market. One can select standard ICs from catalogs and data books and buy them from market. Different microelectronic systems are designed using the standard ICs. With the advent of VLSI in the 1980s engineers began to realize the advantages
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Case Study: Ordinary Portland Cement INTRODUCTION • Cement – Is a material with adhesive and cohesive properties which is capable of bonding mineral fragments into a compact-solid whole • Ordinary Portland Cement (OPC) – Is a hydraulic cement. It is used in the making of concrete with property of setting and hardening‚ of which when the chemical properties reacts with water. OPC Does not disintegrate in water as it sets and hardens in water • Reason of widely usage in Malaysia – Is because
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of Apple Inc and Stephen Gary "Steve" Wozniak who is an American inventor‚ computer engineer and Programmer who co-founded Apple Computer with Steve Jobs and Ronald Wayne. Apple Inc is Located in‚ Cupertino‚ California in the middle of the Silicon Valley. It is focused on designing and developing the personal computers‚ other related software products‚ and the electronic products such as MP3 players and iPods. Apple Inc’s main products are iMac‚ iPod‚ iPhone‚ and its latest advanced product
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uses a triac‚ diac and has a radio-frequency interference (RFI) noise suppression circuit built into it as well. The circuit controls the average power to a load through the triac by phase control. The AC supply is applied to the load for only a controlled fraction of each cycle. The triac is held in an OFF condition for a portion of its cycle then is triggered ON at a time determined by the circuit. Each time the triac is turned on‚ the load current changes very quickly - a few micro seconds – from
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