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Topic: Electronic power supply

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	Power-Plus Technical Distributors - We Have your Power Supply (Site not responding. Last check: 2007-11-03)
		The intent is to stabilize the power supply and eliminate infant mortality by aging the device.
		Power Factor Correction (PFC) - Design technique usually applied to the input of off-line power supplies that improves the power supply's power factor and minimizes harmonics generated by the power supply onto the AC power line.
		Power Good - Signal (typically a visible LED) that indicates the DC output of the primary channel of a power supply is still present.
	www.power-plus.com /terminology.htm (3301 words)

	Power supply - Wikipedia, the free encyclopedia
		A power supply (sometimes known as a power supply unit or PSU) is a device or system that supplies electrical or other types of energy to an output load or group of loads.
		Constraints that commonly affect power supplies are the amount of power they can supply, how long they can supply it for without needing some kind of refueling or recharging, how stable their output voltage or current is under varying load conditions, and whether they provide continuous power or pulses.
		A power supply (or in some cases just a transformer) that is built into the top of a plug is known as a wall wart, power brick, plug-in adapter or just power adapter.
	en.wikipedia.org /wiki/Electronic_power_supply (696 words)

	Electronic Bench Power Supply and Gallery
		The power supply is the most important aspect of electronics, without a good bench supply the most basic circuits may be very frustrating to prototype.
		The current meter was a slightly more tricky challenge, the first meter blew immediately when it was placed in the original design since the +5 volt output referenced to the -5v output had such a low impedance to the 0-30 volt section that the potential inside one of the chips rose to high killing it.
		After sometime i finally remembered the opto isolator, this coupled with a 2n2222 transistor would act as a light activated switch turned on when the +5v regulator powers up, which is at the same time as the rest of the power supply.
	members.bellatlantic.net /~vze2qp7e/benchsupply/index.htm (471 words)

	Electronic Power Supply Solutions From IPD
		Electronic power supply designs that meet a wide variety of applications are offered by Integrated Power Design (IPD).
		This allows us to provide a compact electronic power supply with high power densities and features that are required by most demanding applications.
		Our electronic power supply designs are for a global market place, which include industrial and medical applications.
	www.ipdpower.com /electronic_power_supply.html (329 words)

	Managing Multiple Supply Voltages
		A power-on reset (POR) is a form of microprocessor supervisor IC that provides this longer delay (called a reset timeout) to permit the system to fully initialize prior to allowing the microcontroller to operate.
		When used with noisy power supplies, a voltage detector might unnecessarily turn a regulator on and off several times, especially if the monitored voltage level is near its trip threshold.
		These power supplies provide standard voltages, such as 5 V, 3.3 V, 2.5 V and 1.8 V that are often distributed throughout a system.
	powerelectronics.com /mag/power_managing_multiple_supply (2276 words)

	power supply, 1U rack mount power supply, AC DC power supply, switching power supply, RS485, RS422 remote management, ... (Site not responding. Last check: 2007-11-03)
		Constant Current Power Source: A power supply that is regulated and delivers a constant current to a load, even when the load resistance changes.
		Overload Protection: A technology by which an electronic power supply is protected from permanent damage due to short circuits, over loads, or reverse polarities connected across the load terminals.
		Power consumption: The total input power required by the power supply at a full load output condition.
	www.optimal-power.com /engterms.html (728 words)

	POWER SUPPLIES
		Describe the operation of the power supply from both the whole unit standpoint and from the subunit standpoint.
		Trace the flow of ac and dc in a power supply, from the ac input to the dc output on a schematic diagram.
		It maintains the output of the power supply at a constant level in spite of large changes in load current or in input line voltage.
	www.tpub.com /neets/book6/22.htm (985 words)

	Switched-mode power supply - Wikipedia, the free encyclopedia
		Efficiency — Linear power supplies regulate their output by using a higher voltage in the initial stages and then expending some of it as heat to improve the power quality.
		Power factor — The current drawn by simple SMPS is non-sinusoidal and do not follow the supply's input voltage waveform, so the early SMPS designs have a mediocre power factor of about 0.6, and their use in personal computers and compact fluorescent lamps presented a growing problem for power distribution.
		If the output is required to be isolated from the input, as is usually the case in mains power supplies, the inverted AC is used to drive the primary winding of a high-frequency transformer.
	en.wikipedia.org /wiki/Switched_mode_power_supply (2569 words)

	Switching-Mode Power Supply Design
		Power supply design problems and solutions are discussed in a unique problem-solving format, where each problem is identified and discussed, then a test is provided to determine the relevance to your design followed by a general discussion of its solvability.
		The emphasis is on the design of switching-mode power supplies, also called switching power supplies or switching regulators.
		A power supply design tutorial ties the problems together and serves as an introduction to switching-mode power supply design.
	www.smpstech.com (554 words)

	DC-DC AND AC-DC POWER SUPPLIES BY KEPCO, INC.
		Kepco, an ISO 9001:2000 company, has been making electronic power supplies, both modular and instrument type, since 1946.
		Kepco's power supplies comply with all international safety EMI and EMC directives and most Kepco power supplies are CE marked.
		Our product line has evolved in step with technology advances so that we offer power supplies and power supply controllers designed to fill the needs of even the most sophisticated user.
	www.kepcopower.com (157 words)

	Elpac - Power Supply Resources
		When EMI is a concern, it is crucial that an Original Equipment Manufacturer (OEM) select a power supply that is fully compliant with all applicable EMI standards in order to minimize issues when integrating the power supply into a system, with careful consideration given to the challenge of EMI.
		In addition, conformance to these standards by the power supply does not guarantee that when it is used in a larger system, the system will pass these EMI tests.
		Further, such leading-edge power supply manufacturers continue to audit their product's performance during ongoing production in order to ensure that nothing has changed with regard to EMI, preventing undue hardship and failures at the OEM customer.
	www.elpac.com /resources/technical/pages/white-emi.html (2445 words)

	ac dc power supply, 12 volt power supply, 24v dc power supply, telecom power supply, 1U rack mount power supply (Site not responding. Last check: 2007-11-03)
		OPR Power Series™ is a reliable, efficient and inexpensive solution for all kind of AC to DC power supply applications.
		Linear power supplies have inherently low conducted and radiated noise levels, because of this feature these power supplies can be used anywhere in the world where low power supply noise is of utmost importance.
		OPD Power Series™ of enclosed rack mount DC-to-DC converters/power supplies are well known for their reliability, efficiency and low cost in the Telecom, Utility and Power Industries.
	www.optimal-power.com /powersupply.html (303 words)

	UVC Emitters offer 277 V, fully electronic power supply., Steril-Aire, Inc.
		Power supply allows installation using fewer wires and transformers, and is available with variety of tube lengths and configurations to fit commercial, industrial, or institutional applications.
		Emitters are also available with 115-208/230 V electronic power supply for customers with different electrical requirements.
		The Steril-Aire power supply features a fully electronic design that delivers greater operating efficiency, longer life, and higher reliability than the magnetic-style ballasts used to power many other manufacturers' UVC devices.
	news.thomasnet.com /fullstory/30031 (593 words)

	Switch Mode Power Supply Buck Converter Project
		In recent years, the use of switch mode power supply (SMPS) has become more common as more applications demand for greater power efficiency.
		The setback of using SMPS compared to linear power supply is that it generates electrical noise which contributes to electromagnetic compatibility design issues and more component count.
		Take note that this circuit is non isolated type which means that the output is not electrically isolated from the input and all testing should be done using an isolation transformer to provide the AC line input to the board.
	www.electronics-project-design.com /SwitchModePowerSupply.html (258 words)

	Power Supply, Mobile, Computer, Electronic, Power Solution (Site not responding. Last check: 2007-11-03)
		Watt Power Solutions Limited offers large range of standard power supply solutions and is available to help where a standard power supply does not meet your requirement.
		Whether you are a electronics designer that needs a power supply for a new project to a purchaser looking for a first or second source, or just making sure that you are using the most cost effective product available, we can help.
		Modular High Power 3Gen and 3Med 400, 600 and 1000 watt configurable power supplies from Excelsys Technologies Ltd. These are first and last the Alpha and Omega of this type of shoebox product.
	www.wattpowersolutions.com /about_us.php (476 words)

	Electronic Power Supply (Site not responding. Last check: 2007-11-03)
		USHIO's new SMARTARC electronic power supply with digital power management and microprocessor controls is a compact and "intelligent" solution for operating DC operated arc discharge lamps.
		Electronic power supply for Short Arc Mercury and
		Electronic power supply for EmArc® and DC gas discharge lamps.
	www.ushio.com /categ_powersupply.htm (44 words)

	Electronic Loads - SMPS - Switching Mode Power Supply
		We are a supplier of Power Test Equipment.
		We have more than 20 years experience in the electronic power industry.
		We are able to provide many high quality power testing requirements.
	www.prodigitusa.com /SMPSTestLoads01.htm (40 words)

	Foundation R&D: Electronic Power Supply Design & Application Support (Site not responding. Last check: 2007-11-03)
		The power supply components typically experience the greatest electrical and thermal stress.
		In addition, power supply dynamics can be complex, utilizing a broad, multiple order range of the voltage, current, power, and frequency spectrum.
		Foundation RandD was founded to assist the electronics manufacturing community with laying a solid foundation upon which to build proprietary technology.
	frd-inc.com (146 words)

	Regulated Power Supply Electronic Circuits
		A 13.8V 20A PSU: This is a Regulated DC power supply with short circuit protection and with current limiter.
		A power transistor is used to supply extra current to the load the regulator, maintaining a constant voltage.
		Universal PSU: A Universal Power supply based on the L200 regulator, which includes an outboard pass transistor to boost output currents up to 4 amps.
	www.discovercircuits.com /R/reg-pwr.htm (1458 words)

	Lab Linear Power Supply KIT K7200RS (Site not responding. Last check: 2007-11-03)
		This laboratory linear power supply kit K7200RS is no doubt a valuable device both for the professional and amateur electronics engineer.
		Because of the integrated fan, the power supply is capable of operating at full load for an extended time.
		This power supply kit is supplied complete with housing, knobs, transformers and K7201 digital display (Volts and Current).
	www.apogeekits.com /pwr_supply.htm (222 words)

	Consolidated is a manufacturer wire, cable, cordsets and molded cable assemblies.
		Consolidated Electronic Wire and Cable builds and inventories a large selection of Electronic Hook-Up Wire with UL and CSA approved PVC, SR-PVC, PTFE, TFE, XLPE and XL-PVC insulations.
		Electronic Wire and Cable, including RG-/U style Coaxial Cable to Military Mil-C-17 and RG-/U type Commercial Polyethylene Coaxial Cable.
		Call for Stock or Custom Electronic Power Supply Cords including Medical Grade cords, International Electronic Power Supply Cords and Unshielded Power Supply Cords for North America.
	www.conwire.com (301 words)

	dc power supply, electronic load news: dc power supply, electronic load (Site not responding. Last check: 2007-11-03)
		The modular design of AMREL’s eLOAD and ePOWER lines not only expands the range of choices for standard power supplies and electronic loads, but also reduces time and cost for modified and customized designs.
		AMREL’s unique modular design and board layout provide the adaptability needed to address the industry's current and future demands with a standard or "modified standard" electronic load or dc power supply.
		Whether it is an air-cooled load, water-cooled load, switching power supply, or linear power supply, programmable or locally controlled, you can be assured AMREL's team will provide the most efficient and cost effective solution available.
	www.amrel.com /AMRELPowerProducts/ac_dc_power_supply_load_custom.html (306 words)

	Power conversion, electronic ballast, power supply design, switching power supply, and induction heating to help with ...
		Power conversion, electronic ballast, power supply design, switching power supply, and induction heating to help with your next high-tech project.
		Since 1980 Creative Electronics Consultants has been solving problems in power supply design, switching power supply design, electronic ballast design, power conversion, induction heating, and battery charging systems.
		We also have experience in high voltage pulse power systems, induction heating, and battery charging and control systems.
	www.cecone.com (146 words)

	Electronic Power supply load (Site not responding. Last check: 2007-11-03)
		I need to build an electronic power supply load for testing purpose.
		Start with a power transistor with its emitter or source connected to a small resistor which is connected to ground.
		Hi, needed something simular a couple of month ago and built a load with opamps and power mosfets simular to the one described in the link two posts up.
	www.edaboard.com /ftopic44561.html (417 words)

	Neon Power Supply Application Guide
		With the growing number of electronic power supplies being used in the sign industry and adoption of the UL2161 standard, sign builders will encounter some new situations.
		Previously, if electronic power supplies had secondary ground fault protection, the “trip point” was 25-35 mA to ground.
		If the tubes or GTO leads on different power supplies are close, you may have a sign that will not light unless the power supplies are turned on in a specific order.
	www.ventextech.com /guide.htm (1642 words)

	Power Supply Electronic Plans, Variable, Digital 12VDC
		Use this heavy duty power supply to power all your automotive radio, stereo or CB equipment.
		Can be used to power neon lamps, flash tubes, strobes, etc. Efficient ferrite inverter transformer and high power inverter transistor combine to insure reliable operation.
		The perfect power supply to power ANY mobile equipment including mobile transmitters, transceivers, RF amplifiers, stereo power boosters, etc. The overall design can be used to construct a power supply capable of 40, 50 or more amps, regulated at 12 VDC.
	www.electronickits.com /kit/plans/power/power.htm (327 words)

	Power Electronics Technology Magazine Online \| power electronics engineer, IEEE, battery, power supply (via CobWeb/3.1 ... (Site not responding. Last check: 2007-11-03)
		The convective performance of microchannel cooling systems for high-power electronics can be improved to the point where the total thermal resistivity is no longer dominated by the heatsink....
		TT electronics' IRC Wire and Film Technologies Division's SPP and SP Series are molded and conformally coated wirewound resistors and combination resistor/fuses....
		Astrodyne's two series of ultra-miniature, open-frame modular switching power supplies are designed to meet the space and performance parameters needed in medical and dental instrumentation and systems....
	www.powerelectronics.com.cob-web.org:8888 (362 words)

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