Accurately Test Magnetics Carrying DC Bias Current
Sep 1, 2006
A new method of injecting dc current into power inductors
enables designers to avoid common pitfalls when measuring
these devices, thus minimizing measurement errors....
Our Industry Looks Increasingly Global
Jun 1, 2006
A few months ago, we ran an Executive Viewpoint column that posed the question, Is Your Job Going To China? The author wasn't merely asking the question,...
Performing Thermal Analysis in System
May 1, 2006
Integrated circuit (IC) manufacturers normally publish a thermal resistance rating ( thermal resistance from die junction-to-ambient air) on their data...
PEM Fuel Cells Emerge from Niche Markets
May 1, 2006
Fuel cell technology has received a great deal of attention as a vital component in the highly anticipated, though as of yet postponed, emergence of the...
Commercial Instruments Measure True AC Power
Mar 1, 2006
In 1776, Scottish economist Adam Smith introduced the concept of division of labor and specialization, concluding that it is in the economic interest...
Converters Address Medical Equipment Compliance
Mar 1, 2006
Several methods exist for providing adequate electrical isolation in equipment to be connected to a medical patient. One approach involves the use of...
Power Supply Redesign Raises EMC Issues
Sep 1, 2005
Because even modest design changes can cause a supply to fail FCC/CE tests for conducted and radiated noise, designers need to understand
where noise originates and how to reduce it to acceptable levels....
Precision Circuit Monitors Negative Supply Current
Sep 1, 2005
Supply-current monitoring is a necessary feature in high-reliability systems for which excessive current can cause damage or compromise safety. Such systems...
Impact of Burn-In on Power Supply Reliability
Sep 1, 2005
Through proper testing and analysis of the accumulated data, power supply manufacturers can select the appropriate level of burn-in to drive high field reliability while achieving cost goals....
Environmental Testing Benefits Power Electronics
Jul 28, 2005
Integrating test and measurement with environmental testing can improve product robustness, product reliability and production processes, increasing yields and reducing warranty expenses and exposure....
Microcontrollers Fit the Bill for Electricity Metering
Jun 1, 2005
New MCUs integrate the measurement,
computation, communications, memory and
display driver functions needed in multirate,
multifunction electronic energy meters....
Mixed-signal ICs Build Smart Energy Meters
Apr 1, 2005
The migration from electromechanical energy metering to solid-state energy metering is driven by demands for advanced functionality, higher accuracy and...
Automatic Routine Speeds Power-Supply Calibration
Mar 1, 2005
A software-driven calibration routine for a
power-supply controller IC eliminates the timeconsuming
and costly problems of manual
calibration and results in more reliable, more
accurate performance in the field....
Power Chips Benefit From Final-Test Trim
Mar 1, 2005
Programming chip parameters after packaging
reduces test requirements at the wafer probe
stage, lowering the cost of producing power
management ICs....
ICs Ease Adoption of Electronic Energy Metering
Feb 1, 2005
Electronic energy meters are replacing traditional electromechanical meters in many residential, commercial and industrial applications because of the... For a pdf version of this story, click here....
