jdavies@elec.gla.ac.uk 2010 July 08 Contents Preamble 2 1 Introduction 3 2 One-transistor amplifier: Schematic capture 5 3 OrCAD PCB Editor 14 4 Instrumentation amplifier – single-sided board 25 5 Instrumentation amplifier – double-sided board 35 6 Artwork and drill files 39 7 Summary: PCB design flow 46 A Where to learn more 47 B Capture techniques 50 C PCB Editor techniques 51 D PCB Router techniques 65 E Plots
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consider SI in their designs. Modern digital circuits can operate up to gigahertz frequencies with rise times in the order of fifty picoseconds. At these speeds‚ a carelessly designed PCB trace only needs to be an inch or so long before it radiates. Radiating traces create voltage‚ timing and interference problems not only on that line‚ but also across the entire board and even across adjacent boards. The problem is even more critical with mixed-signal circuits. For example‚ consider a system that relies
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AJAY SHARMA Ward No.6‚ H No. 7 Railway Road Vijaypur Distt &Teh Samba‚ 184120 (J&K) E&C Engineer T: +91-8713077962 ajaysharma.sharma91@gmail.com PERSONAL STATMENT Self-motivated Electronic & Communication engineer with viable professional industrial experience as a production engineer and technical support. Detail-oriented individual who exemplifies professionalism and an ability to manage multiple projects and tasks at any given moment. Demonstrated history of successful testing
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manufactures printed circuit boards‚ technically called as “soldermask overbare copper” boards It faces a competition from around 750 manufacturers in United States. The firm has developed new processes and application and holds patents for these. Process Order Whenever an order was received‚ price was quoted based on estimations of labor and material costs. Based on acceptance by the client‚ delivery time of 3 weeks was quoted for orders below 1000 boards and 5 weeks for rest
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million savings in the first year‚ and a $6 million annual savings in subsequent years. In FY09‚ 86 percent of Cisco printed circuit boards were produced without washing‚ and we have committed to completely eliminating water washing of printed circuit boards by early FY10. Cisco estimates that the elimination of water wash for this remaining 14 percent of our circuit boards will save 20 million gallons of water and over $1 million
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a) Atmega 162 Microcontroller: Atmega 162 Microcontroller is the heart of the device which handles all the sub devices connected across it. It has a flash type reprogrammable memory. It has peripheral devices to play this project to perform. It also provides sufficient power to inbuilt peripheral devices. It need not give individually to all devices. The peripheral devices also activate as low power operation mode. Features: • High performance • Advanced RISC Architecture • Non –volatile
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PRINTED CIRCUITS COMPONENTS FOR A JIT FACTORY Mr. Carl Burger‚ supply manager at Acacia Company‚ is faced with a problem of researching several electronic components for a new graphic plotter‚ manufactured in a just-in-time environment. Acacia Company is a major producer of graphic plotters‚ renowned for top-quality and innovative products. The newest unit in the product line is the 440A‚ a relatively inexpensive eight-pen‚ A-size (8½” x 11”) plotter‚ designed for use with personal computers
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Morphological Analysis Due to market concerns‚ Enterprises decided to use morphological analysis to address and determine new ways of introducing a sleek‚ economical and slim home entertainment into the Atlanta metro area. Right now it is very difficult to have a home entertainment system that is not made by the same manufacturer. For example‚ you can go into an electronics store and buy a CD player‚ stereo system‚ DVD‚ cable TV receiver‚ gaming system that is made by Sony but if you decide that
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AIC Netbooks: Optimizing Product Assembly Diyora Hitesh V Regd No. PA1110 Abstract AIC Systems is a producer of printed circuit boards‚ focusing on motherboards and graphics cards for the personal computer industry. The company is involved in Original design manufacturer and so the company took an active role in innovating and designing each new generation of components. The firm decides to diversify its portfolio to include consumer electronics
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How to Solder First a few safety precautions: * Never touch the element or tip of the soldering iron. They are very hot (about 400°C) and will give you a nasty burn. * Take great care to avoid touching the mains flex with the tip of the iron. The iron should have a heatproof flex for extra protection. An ordinary plastic flex will melt immediately if touched by a hot iron and there is a serious risk of burns and electric shock. * Always return the soldering iron to its stand when
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