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Electronic circuits and components * Course Index * Introduction * About the Author * About this Course * Feedback * Course Navigation * How to use this Course * TINA * Locktronics Fundamentals * Introduction: Fundamentals * Units and Multiples * Electricity * Electronic Principles * Electrical Circuits * Alternating Current * Assessment: Fundamentals Passive Components * Introduction: Passive Components * Resistors * Capacitors * Inductors * Transformers ## Transformer Operations ## Examples: Transformer Operations ## Phase ## Voltage and Turns Ratio ## Examples: Voltage and Turns Ratio ## Current and Turns Ratio ## Examples: Current and Turns Ratio * Batteries, Fuses, Lamps and Switches * Assessment: Passive Components Semiconductors * Introduction: Semiconductors * Diodes * Transistors * Logic Gates * Assessment: Semiconductors Passive Circuits * Introduction: Passive Circuits * Series and Parallel Connections * Kirchoff's Laws * Potential and Current Dividers * Passive Time Variant Circuits * Assessment: Passive Circuits Active Circuits * Introduction: Active Circuits * Power Supply Circuits * Operational Amplifier Circuits * Transistor Amplifier Circuits * 555 Timer Circuits * Assessment: Active Circuits Parts Gallery * Introduction: Parts Gallery * Passive Component Images * Semiconductor Images * Other Images * Quizzes |
(:Summary:Contains the 'action' links (like Browse, Edit, History, etc.), placed at the top of the page, see site page actions:) (:comment This page can be somewhat complex to figure out the first time you see it. Its contents are documented at PmWiki.SitePageActions if you need help. :) * Print (:comment (:if group Site,SiteAdmin,Cookbook,Profiles,PmWiki*:) (:comment delete if and ifend to enable backlinks:) * %item rel=nofollow class=backlinks accesskey='$[ak_backlinks]'% [[{*$Name}?action=search&q=link={*$FullName} | $[Backlinks] ]] (:ifend:) :) * Login Transformer Operations<^< Transformers | Course Index | Examples: Transformer Operations >^>(:nl:) The primary and secondary windings of a transformer are wound on a common magnetic core. The alternating flux generated by the primary winding is therefore coupled into the secondary winding and very little flux is allowed to escape from the magnetic circuit. A sinusoidal current flowing in the primary winding produces a sinusoidal flux. At any instant the flux in the transformer is given by the equation: Φ = Φ'_max_' sin(2πft) where Φ'_max_' is the maximum value of flux (in Wb), f is the frequency of the applied current (in Hz), and t is the time in seconds. The r.m.s. value of the primary voltage (VP) is given by: V'_P_' = 4.44 f N'_P_' Φ'_max_' Similarly, the r.m.s. value of the secondary voltage (VS) is given by: V'_S_' = 4.44 f N'_S_' Φ'_max_'  (:nl:)(:table style="clear:both":)
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