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Computer Power Supply- Diagram and Operation

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SMPS POWER SUPPLY for ATX COMPUTERS. All electronic systems and equipment regardless of their size or function have one thing in common: they all need a power supply unit (PSU) that converts input voltage into a voltage or voltages suitable for their circuits. The most common type of today's PSU is the switch mode power supply ( SMPS. Of an ATX power supply. The above diagram shows a so-called forward converter. The control circuit regulates 5V output by using pulse-width modulation ( PWM. The 33V buss i...

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Metric Conversion Tables Online

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CONVERSION CHARTS FOR METRIC AND ENGLISH (US) UNITS. LENGTH, WEIGHT, AREA AND VOLUME. There is a number of different systems of measurement in practical use. Most of the world has adapted a decimal system called metric. Here you will find metric conversion charts for some of the common quantities. THE UNITS OF LENGTH. IMPERIAL (US) TO METRIC. METRIC TO IMPERIAL (US). THE UNITS OF CAPACITY (VOLUME). 2 pints (8 fl.ounces). ENGLISH (US) TO METRIC. METRIC TO ENGLISH (US). 1 fluid ounce (US). THE UNITS OF AREA.

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Standard Decade Values Table

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STANDARD DECADE RESISTANCE VALUES. Electronic Industries Association (EIA) and IEC publication 60063 specify standard values of resistors and other electronic components. These values are logarithmically spaced in increments of 1/N of a decade, where N – tolerance series, such as 96 for E96. Standard base values can be approximated by the following formula:. Where i=0,1,…, N-1. And components Part Number Search. Download printable decade table in pdf:.

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IPC-2221B PCB Trace Spacing / Clearance by Voltage

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PRINTED CIRCUIT BOARD (PCB) SPACING / CLEARANCE vs. VOLTAGE. Is generally accepted in electronic industry as a generic PCB design standard. However, when it comes to distances between the PC traces, in my view, the IPC-2221 table 6-1 stepwise limits are mostly baseless: the curve for spacing vs. voltage should be linear. Of course, it is not the only standard that defines the electrical clearance. For power conversion circuits IPC-9592. One would think that UL norms should be most stringent than IPC....

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Material Connections Disclosure

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DISCLOSURE OF MATERIAL CONNECTIONS. Refers to this web domain (smpspowersupply.com) and all its subdomains. I may be required by law (per FTC 16 CFR Part 255) to inform you that a material connection exists between this website and some of the products, services or companies I review, recommend or mention. This website contains various third parties affiliate links. All information in this website is provided AS IS. HTTP:/ WWW.SMPSPOWERSUPPLY.COM/.

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Disclaimer and Terms of Use

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Terms and Conditions of Usage. Refers to this web domain (smpspowersupply.com) and all its subdomains. By accessing and using this website, you acknowledge. This website is a free informational resource. All the materials and information on this website are provided " AS IS. For informational purposes only and do not constitute a professional or a legal advice. This website contains third parties advertisements and affiliate links. This website also contain links to third party websites provided sole...

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Units of Power & Energy- Conversion, Electrical Calculators, Formulas

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ENERGY, WORK AND POWER UNITS CONVERSION. DEFINITIONS, ONLINE CALCULATORS, EQUATIONS. Energy in general is defined as the capacity for doing work. Power is the rate of doing work or the rate of using energy:. Although casually the terms energy and power are often used interchangeably, technically they have different meanings. The SI unit of energy and work (which are numerically the same) is the joule (J). How do we get an expression for electrical power from its general definition as work per unit time?

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Latest Inventions in Power Supplies & Power Conversion Systems

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LATEST INVENTIONS IN SWITCHING POWER SUPPLIES AND VOLTAGE REGULATORS. Latest patents and applications. Current control for dc-dc converters. A DC-DC converter having a primary side comprising at least three actively switched primary voltage bridges with several active switches for converting a DC input voltage into primary alternating voltages for each of the primary voltage bridges, and having a secondary side comprising at least three actively switched secondary voltage. In accordance with an embodimen...

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Computer Power Supply- Schematic and Operation Theory

http://www.smpspowersupply.com/atx-power-supply.html

COMPUTER POWER SUPPLY SCHEMATIC AND OPERATION THEORY. This tutorial is designed to help you better understand the operation of an SMPS. The diagram below shows a partial schematic of a 450 watt ATX power supply. Its construction is typical for a modern computer PSU with MOSFET switches and active power factor correction (PFC). Note that most schematics circulating on the internet depict old-style PSU with bipolar transistors and without PFC. This imagemap is courtesy of Mobilefish. Output converter is co...