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A "linear voltage regulator", usually called a "linear regulator", accomplishes the same goal by holding a transistor in its active region, somewhere between full on or full off. | A "linear voltage regulator", usually called a "linear regulator", accomplishes the same goal by holding a transistor in its active region, somewhere between full on or full off. | ||
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[[The 723 Voltage Regulator]] can be used as either a linear or a switching regulator. | [[The 723 Voltage Regulator]] can be used as either a linear or a switching regulator. | ||
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The [[MCP1252/3]] Flyback Switching Regulators can generate an output voltage greater than the input voltage -- something impossible with linear voltage regulators. | The [[MCP1252/3]] Flyback Switching Regulators can generate an output voltage greater than the input voltage -- something impossible with linear voltage regulators. | ||
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While learning about SMPS, teachers typically try to gradually ease you into understanding them by starting with perhaps the easiest-to-understand switching converter, the buck converter. | While learning about SMPS, teachers typically try to gradually ease you into understanding them by starting with perhaps the easiest-to-understand switching converter, the buck converter. | ||
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In practice, it seems that many switchers are "flyback" converters -- although some people say that Cuk converters are better than flyback converters; some even go so far as to say that Cuk converters are the "optimum topology". | In practice, it seems that many switchers are "flyback" converters -- although some people say that Cuk converters are better than flyback converters; some even go so far as to say that Cuk converters are the "optimum topology". | ||
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* The [http://romanblack.com/smps/a04.htm 3-transistor Black regulator]: cheap, high-efficiency, current limited. | * The [http://romanblack.com/smps/a04.htm 3-transistor Black regulator]: cheap, high-efficiency, current limited. | ||
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* http://en.wikipedia.org/wiki/DC_to_DC_converter | * http://en.wikipedia.org/wiki/DC_to_DC_converter | ||
* http://en.wikipedia.org/wiki/Switched-mode_power_supply | * http://en.wikipedia.org/wiki/Switched-mode_power_supply | ||
− | * http:// | + | * http://smps.us/ "SMPS SWITCHING POWER SUPPLY DESIGN CIRCUITS, SCHEMATICS, PCBs, ELECTRICAL ENGINEERING REFERENCE, SOFTWARE, AND OTHER FREE ONLINE RESOURCES" ... including http://smps.us/layout.html "PRINTED CIRCUIT BOARD LAYOUT GUIDELINES FOR SWITCHING POWER SUPPLIES (SMPS)" |
* [http://massmind.org/techref/power.htm Massmind: Power] discusses a variety of linear and switching power supply regulators | * [http://massmind.org/techref/power.htm Massmind: Power] discusses a variety of linear and switching power supply regulators | ||
* [http://zwizwa.goto10.org/ramblings/brood/20070716-191312 "boost converter hack"] describes one way a microcontroller (uC) can control its own supply voltage, once it's given an initial push. (External diodes would be better than re-using the internal diodes, to avoid exceeding the manufacturer's recommendations). | * [http://zwizwa.goto10.org/ramblings/brood/20070716-191312 "boost converter hack"] describes one way a microcontroller (uC) can control its own supply voltage, once it's given an initial push. (External diodes would be better than re-using the internal diodes, to avoid exceeding the manufacturer's recommendations). | ||
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* [http://www.national.com/onlineseminar/2001/bpease/switching_controllers.html National: "Designing DC-DC Power Supplies Using High Performance Switching Controllers"] | * [http://www.national.com/onlineseminar/2001/bpease/switching_controllers.html National: "Designing DC-DC Power Supplies Using High Performance Switching Controllers"] | ||
* "High-voltage, low-noise dc/dc converters" http://www.edn.com/article/CA6582859.html?spacedesc=readersChoice and http://www.edn.com/blog/1700000170/post/440031844.html : has nice photos of dead-bug solid-copper-plane wiring style. | * "High-voltage, low-noise dc/dc converters" http://www.edn.com/article/CA6582859.html?spacedesc=readersChoice and http://www.edn.com/blog/1700000170/post/440031844.html : has nice photos of dead-bug solid-copper-plane wiring style. | ||
− | * [http://www. | + | * [http://www.national.com/nationaledge/mar03/article.html "Comparing Topologies and the (Design) Rules of the Game"] by Sanjaya Maniktala 2002 ... emphasizes "r", the ripple factor, the ratio of the ripple in the inductor to the average current in the inductor, which applies to practically every SMPS topology. It describes "The formal design procedure for any converter design". |
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