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2011-06-06 Power tip: Cut transformer interwinding capacitance effects
Learn about this type of capacitance, the problems it causes and the solution to them.
2016-02-16 Boost current control for better stepper motor motion
Implementing internal, bi-directional current sensing inside a stepper motor driver IC results in improved motion quality with lower system cost than legacy solutions.
2003-12-17 Jintian wires have heat-resistant insulation
The class 155 modified polyester enameled round copper wire from Ningbo Jintian Copper Group Co. Ltd is suitable for use in washing machine motors, and micro-motors and windings of electric tools. The wires feature an insulation that is both heat- and solvent-resistant.
2002-05-08 ASIC Advantage controllers target SMPSs
ASIC Advantage Inc. has released its In-Plug flyback and feedback controller ICs for use in switch-mode power supplies (SMPS) using standard MOSFETs and transformers with only two-windings.
2006-11-08 Allegro unrolls dual full-bridge PWM motor driver
Allegro has rolled out a new dual full-bridge PWM motor driver designed to drive both windings of a two-phase bipolar stepper motor.
2004-06-02 Zetex pre-driver IC provides variable speed control
Zetex unveiled a pre-driver IC that provides flexible variable speed control of single-phase brushless dc fans and blowers.
2002-04-05 Zetex offers motor controllers for 100W fans
The ZXBM2000 series of fan motor controllers integrates rotational speed sensing, locked rotor detection, and automatic recovery functions, and is targeted for variable speed control of two-phase, dc brushless fan and blower motors up to 100W.
2003-11-14 Zetex fans, blowers feature smart thermal control
The ZXBM2004 variable speed 2-phase motor controller from Zetex provides added flexibility in thermal control.
2005-12-05 Wirewound chip inductors pack performance in small package
Taiyo Yuden offers a new wirewound chip inductor series that is said to simplify designs, reduce part count and lower BOM costs by combining two devices into a single 3218-size package.
2007-11-15 Wire-wound inductors load 3A at 10?H rating
Taiyo Yuden has unveiled the NR6045T series of wire-wound power inductors for DC/DC converter choke coil applications in LCD/plasma TVs and other flat-panel displays.
2015-07-21 Using modular digitisers for power measurements
In this article, we illustrate how to make basic power measurements in AC circuits and devices using a modular digitiser.
2014-07-24 Transformers target high efficiency DC/DC converters
The PG1427 series from Pulse Electronics boasts operating frequency of 50kHz up to 500kHz to offer optimal functionality in wireless base stations and power switching telecom applications.
2006-03-20 Transformer targets PoE products
Pulse has introduced a series of high efficiency, off-the-shelf power transformers for the powered device side PoE products that meet the IEEE 802.3af standard.
2011-08-15 Toroidal transformers features 97.4% power efficiency
Triad Magnetics has released the VPT Series toroidal power transformers that help reduce stray fields, minimize size and operate in 25VA2.5KVA power range.
2006-09-08 Stepper motor delivers up to 40% more torque
Portescap said the stator-enhanced magnets of the h3 stepper motor series deliver up to 40 percent more torque in the same footprint as competing devices.
2005-04-04 SMT inductors suit PC notebook apps
Pulse's new inductors are designed for the multiphase VRMs supporting the increasing current needs of Vcore power in PC notebooks and other DC/DC apps.
2003-03-25 SMT inductors eye distributed power
Pulse has introduced two SMT inductors that target dc/dc converter and ac/dc switch-mode supply systems.
2013-07-24 SMT flat coil planar transformers deliver 500W
Pulse Electronics's SMT flat coil planar transformers uses a copper fill factor, reducing direct current resistance of the primary winding is by 50 per cent and increases power rating by 20 per cent.
2006-04-21 Sensors accurate position measurement
Macro Sensors' new line of 24V spring-loaded position sensors offers accurate position measurement in a variety of dimensional gaging applications.
2002-10-24 Schaffner chokes protect servo drives
The RWK 305 series of chokes from Schaffner EMV features a voltage drop of 0.8 percent to reduce the dv/dt stress caused by servo drives.
2010-10-08 Right angle LVDT position sensors for harsh environments
Macro Sensors now offers right angle configurations of its spring-loaded and through-bore LVDT position sensors. These devices are targeted for industrial applications when a conventional LVDT position sensor proves too long or environmental contaminants can limit sensor performance.
2005-09-08 RF ICs can be quite complex
According to one industry analyst, the worldwide handset RF semiconductor market is expected to grow from $5.3 billion in 2004 to $8.26 billion in 2008
2005-09-08 RF ICs can be quite complex
Understanding that complexity, and putting these devices to work for you, can help get you ahead of the competition
2009-02-18 Rev up efficiency of motor-control based designs
There is pressure on designers to cut the cost of motor installation. Understanding the requirements can help illustrate what features designers need to focus on to get the best performance for the smallest investment in silicon.
2002-12-20 Pulse planar transformer targets industrial apps
Pulse Engineering is touting its PA0369 and PA0423 devices as the only component-type planar transformers with a 100W to 140W rating, respectively.
2005-04-07 Pre-driver with configurable phase commutation delay
The ZXBM1015 pre-driver from Zetex includes a current monitor that enables supply current on start-up and stall to be kept permanently within OEM specifications.
2014-04-30 Power tip: Weighted feedback in multiple-output supplies
Here's a look at weighting the feedback divider in multi-output switching power supplies.
2014-09-01 Power tip: Selecting rectifiers for flybacks
The choice of rectifiers is crucial to the design of a flyback as they influence cross regulation over load and temperature, efficiency, and transformer design.
2014-01-13 Power tip: Minimise EMI from offline power supply
Know how to build a low-power, AC input adapter to meet EMI emissions without a common-mode inductor.
2012-06-26 Power tip: Manage conducted common-mode emissions in isolated switcher (Part 2)
Here's a continuation of the discussion on common-mode currents started in the previous power tip.
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