Power Supply and Conditioning Reference Materials
Reference Articles 601 - 642 of 642
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Powering Multiple Devices from a Common Transformer
Description: After properly sizing a control transformer for your application, there is an additional step in the selection process that should be considered. Even though the necessary steps have been taken to ...
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The Terms "Neutral" and "Ground" Seem to be Used Interchangeably. Do They Mean the Same?
Description: A neutral is a connection to an electrical system. In a three-phase WYE configuration, one end of each of the three generator or transformer windings is connected to a common point. This common point ...
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Video: What is the Difference in Flammability Ratings?
From: L-com, Inc.Description: This video shows the comparison between flammability ratings NEC National Electrical Code articles and the corresponding UL Underwriters Laboratories test methods... ...
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Controlling DC Brush Motor with H-Bridge Driver ICs (.pdf)
Description: DC brush motors are increasingly required for a broad range of applications including robotics, portable electronics, sporting equipment, appliances, medical devices, automotive applications, power ...
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Power Management Techniques and Calculation
From: Silicon LabsDescription: This application note discusses power management techniques and methods of calculating power in a Silicon Labs C8051F00x and C8051F01x SoC. Many applications will have strict power requirements, and ...
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Design Alternatives To The TC682 For Performing Inverting Voltage Doubler Functions
Description: Creating a negative DC bias voltage from a positive DC supply often is required in battery-powered, portable, hand-held instruments that use a Liquid Crystal Display (LCD). Many LCDs require a ...
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Linear Voltage Fan Speed Control Using Microchip's TC64X Family
Description: Pulse Width Modulation (PWM) fan speed control methodology pulse-width modulates a fan's full-rated power supply voltage at a low frequency, typically 30 Hz. A typical PWM circuit, consisting of a ...
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Simple Synchronous Buck Converter Design - MCP1612
Description: The density of portable electronic equipment requires the design engineer to pay particular attention to a number of important design parameters. For the power conversion circuitry, two of these ...
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Soft-Start Controller For Switching Power Supplies
Description: This technical brief describes a microcontroller based Soft-Start Controller circuit for a switching power supply. Start-up is a stressful time for the power driver section of a switching power ...
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Transformerless Power Supplies: Resistive and Capacitive
Description: There are several ways to convert an AC voltage at a wall receptacle into the DC voltage required by a microcontroller. Traditionally, this has been done with a transformer and rectifier circuit. ...
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Designing with the MCP3551 Delta-Sigma ADC
Description: The MCP3551 delta-sigma ADC is a high resolution converter. This application note discusses various design techniques to follow when using this device. Typical application circuits are discussed ...
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Multiple PWM Output Soft-Start Controller For Switching Power Supplies
Description: This Technical Brief describes a microcontroller-based soft-start controller for power supplies in systems with multiple voltages. Sometimes applications have devices with multiple voltage ...
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Uninterruptible Power Supply Reference Design
Description: At times, power from a wall socket is neither clean nor uninterruptible. Many abnormalities such as blackouts, brownouts, spikes, surges, and noise can occur. Under the best conditions, power ...
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Converting A 5.0V Supply Rail To A Regulated 3.0V
Description: As system designers are forced to produce products with increased features while maintaining a flat or decreasing product cost, advancements in device technology must be considered. To produce ...
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DC/DC Conversion
Description: Closed loop control with linear regulators. Often the voltage source is "incompatible" with the load. A buffer needs to be placed between the source and load to regulate or control the voltage and/or ...
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Op Amp Precision Design: DC Errors
Description: AN1177 Op Amp Precision Design: DC Errors DC SPECIFICATIONS Author: Kumen Blake Microchip Technology Inc. There are a small number of DC specifications that describe errors at the input of an op amp. ...
- Signal Chain Design Guide (.pdf)
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Switch Mode Power Supply (SMPS) Topologies (Part I)
Description: The industry drive toward smaller, lighter and more efficient electronics has led to the development of the Switch Mode Power Supply (SMPS). There are several topologies commonly used to implement ...
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Tranformerless Power Supply TechBrief
Description: In most non-battery applications, the power to the microcontroller is normally supplied using a wall mounted transformer, which is then rectified, filtered and regulated. In most applications, this ...
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Understanding Digital Potentiometers Resistor Variations
Description: AN1080 The Step Resistance (R )THE R RESISTANCE SAB Microchip offers Digital Potentiometer devices with The R resistance is the total resistance between AB resistances of 2.1 k?, 5 k?, 10 k?, 50 ...
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Installation and Wiring Guidelines for DC/AC Inverters
Description: DC/AC inverters designed to light Cold Cathode Fluorescent Lamps (CCFL's) are a very specific sub-class of inverters in general. These inverters tend to have very low output currents and very high ...
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Remote Power Supply Monitoring with iLog
From: CAS DataLoggersDescription: European GSM providers that expand their activities to African countries, usually face problems when it comes to power supply the GSM Rx-Tx cellular system. To resolve the problem they use APS systems ...
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Introduction to Current Source Power Units
Description: In order to fully understand the purpose of current source power units, it will be necessary to first understand the operation of the low impedance voltage mode (LIVM) sensors with which the power ...
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Build Your Own Acopian Power System Online
From: Acopian Power SuppliesDescription: Easton, PA - November 10, 2006 - Acopian Power Supplies allows you to 'design' your own multiple output Power System by simply using their online System Builder ...
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Glossary of Power Supply Terms
From: TDK-Lambda Americas Inc.
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Lambda: New DIN Rail Power Supplies Offer Sophistication and Value
Description: DIN rail mount power supplies are quickly showing a surprising degree of sophistication. Until recently, these products were simple single output units, often with narrow range AC inputs. An "option" ...
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Lambda: Power Supply Considerations for Industrial Applications
Description: Although power supplies are among the most important components of any industrial application, they seldom receive any significant attention. Engineers often do not fully understand all of the ...
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Remote Sensing
From: Acopian Power SuppliesDescription: Many Acopian power supplies have +SENS and -SENS terminals (+Sense and -Sense terminals). These terminals may be used for remote sensing of the output voltage and are part of the voltage regulation ...
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Power Supply Comparisons
From: Acopian Power SuppliesDescription: Linear Power Supply vs. Switching Power Supply vs. Unregulated Power Supply ...
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Redundant Power Supplies - Considerations When Paralleling Power Supply Outputs for Redundancy
From: Acopian Power SuppliesDescription: Although the extremely high overall reliability that can be attained with redundancy is widely recognized, implementing redundancy is not always as easy as it may first appear to be. In particular, it ...
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Critical Data Power System Cost of Ownership
From: Exponential PowerDescription: Ultimately, the true cost of implementing a power protection infrastructure is measured over the useful life of the equipment and varies based on the scope of the installation. Because many of today's ...
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UPS Design Topology
From: Exponential PowerDescription: With the vast increase in the number and types of sensitive loads, the term UPS (Uninterruptible Power Supply) is now used to identify devices with power ratings ranging from a few hundred VA, ...
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Designing Availability into a Critical Power System
From: Exponential PowerDescription: How are factors such as increased connectivity and the convergence of voice and data impacting computer system availability requirements? And how are network and facility managers responding to these ...
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Harmonics and IEEE Std 519
From: Exponential PowerDescription: IEEE Std 519 was first introduced in 1981 to provide direction on dealing with harmonics introduced by static power converters and other nonlinear loads so that power quality problems could be ...
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Impact of Blade Servers on the Critical Power System
From: Exponential PowerDescription: Over a span of five to six years, most servers have moved to dual-corded power input design. This change came about to improve Data Centre resilience, this is, to improve the Nines of availability, in ...
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UPS-Genset Compatibility
From: Exponential PowerDescription: UPSs (Uninterruptible Power Supply) and generator sets are frequently combined to supply continuous power to sensitive applications such as computers, telecommunication centres, industrial processes, ...
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UPS Planning for Power
From: Exponential PowerDescription: Along with the explosive growth in data-processing equipment over the last decade has come an unyielding demand for high-quality, continuous electrical power. Often, institutional and commercial ...
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Power Supply Designers Turn to Magnetics Designers for Solutions
From: Premier Magnetics, Inc.Description: In many applications the power supply is the last element to be designed in, a task that often falls on the shoulders of engineers with considerable skills but without much experience in the ...
- Active Barrier and Power Supply
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Switch Mode Power Supplies and their Magnetics
From: Datatronics™Description: In today's day and age the most often used topology for electronic power supplies is that of the Switch Mode Power Supply (SMPS), which is a major user of magnetics. In some applications the "older ...
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