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LAZAR's
POWER ELECTRONICS GUIDE SMPS SWITCHING POWER SUPPLY DESIGN:CIRCUITS, SCHEMATICS, PCBs, ELECTRICAL ENGINEERING REFERENCE, SOFTWARE AND OTHER INFO |
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The electric energy is not normally used in the form in which it
was
produced or distributed. Practically all electronic systems
require
some form of energy conversion. A device that transfers electric energy
from a given source to a given load using electronic circuits is
referred to as Power
Supply
(although "power converter" is a more accurate term for such a
device). A typical application of a power supply is to convert utility AC voltage into regulated DC voltages required for electronic equipment. Nowadays in most power sources the energy flow is controlled with power semiconductors that are continuously switching on and off with high frequency. Such devices are referred to as switch mode power supplies or SMPS. They offer greater efficiency compared with linear supplies because a switch can control energy flow with low losses: when a switch is on, it has low voltage drop and will pass any current imposed on it; when a switch is off, it blocks the flow of current. As the result, in such a switch the power dissipation which is the product of voltage and current, can be relatively low in both states. SMPS are also smaller in size and lighter in weight due to the reduced size of passive components and lower heat generation. The industry trend toward miniaturization, advancements in power electronics technology, as well as various energy efficiency regulations have made "switcher" the dominant type of power supply across practically the full spectrum of applications. Most of the switchers manufactured today for AC input applications include a PFC front end. In general, SMPS can be classified into four types according to the form of input and output voltages: AC to DC (also called off-line DC power supply), DC to DC (voltage or current converter), AC to AC (frequency changer or cycloconverter), and DC to AC (inverter). The field of engineering that deals with the design and analysis of power conversion circuits and devices is called power electronics. This site is an information guide to power electronics and SMPS. Here you will find tutorials, tools, reviews, schematics, and other free online resources on all aspects of switching power supply design and selection, information on other energy conversion sources, as well as basic electrical engineering and electronics reference. |
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POWER ELECTRONICS / SMPS DESIGN- THEORY & TUTORIALS |
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FREE SIMULATION SOFTWARE AND CALCULATORS |
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SMPS TOPOLOGIES: APPLICATION NOTES, GUIDES, SCHEMATICS |
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TI (Unitrode) power supply design seminar books online Power supply basics- concepts and operation Glossary of energy conversion terms >>More: power electronics technology, SMPS guides |
Open source circuit simulation programs, working demos of analog and mixed-signal SPICE circuit simulators, free electronic design automation suite with schematic capture, simulation and PCB layout and other engineering software & calculators |
Switching mode converter topology selection A review of computer PSU connectors and pinouts The basics of switched mode regulators; application notes, design guides, schematics of main topologies, and other design resources |
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PCB DESIGN OF POWER CIRCUITS |
TRANSFORMER AND INDUCTOR- THEORY & CALCULATIONS |
BACKUP UP POWER DEVICES |
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Layout guidelines for printed circuit board IPC-7351 Land Pattern Viewer and tools, Gerber viewer, free routing software, trace calculators, tutorials, guidelines and other free resources for circuit board designers |
Magnetic unit conversion table and calculator Transformer design for switching power supplies, free magnetics software and calculators and other tools and guides |
Standby home generator - reviews and comparison Solar energy for your home Wind generators guide |
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