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2010 Physics Teachers’ Conference VCE Unit 3 Physics Further Electronics Detailed Study Jill Crawford – Methodist Ladies’ College
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Using the ‘Power Supply Design’ materials prepared by the Swinburne University of Technology Electronics and Telecommunications staff to teach the Further Electronics Detailed Study in Unit 3 Physics.
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Overview of Study Design: On completion of this unit the student should be able to design and investigate an AC to DC voltage regulated power supply system, and describe and explain the operation of the system and its components, and the effects of test equipment on the system.
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Essential components of the Power Supply
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The circuit board
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Interrogating the supply Transformer: 18 V peak voltage, 50 Hz mains power
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Rectification: Half-wave rectifier
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Full-wave rectifier
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Filtering Half Wave 470µF capacitor filter
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Half Wave 2670 µF+ 470µF capacitor filter
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Full Wave 470µF capacitor
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Half wave, minimum load, zener-diode regulator
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Half wave, maximum load, zener-diode regulator
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Half wave, minimum load, IC regulator
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Half wave, maximum load, IC regulator
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Jill Crawford – Methodist Ladies’ College email: crawfojk@mlc.vic.edu.aucrawfojk@mlc.vic.edu.au Power Supply Design Prepared by the Electronics and Telecommunications staff of the School of Biophysical Sciences and Electrical Engineering ©2004 This material was developed through a partnership between Swinburne University of Technology and the Physics Department at Methodist Ladies’ College, Kew. Secondary schools that have purchased the Swinburne Power Supply Kits have permission to use these written materials for educational purposes with their students.
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