The burned-out bulb mystery
Sometimes we have to just give up and walk away from diagnosing the actual source of a fault or failure, since the available data or number of units needed for observation and evaluation are insufficient.
Analysis and simulation of PCB ACR losses for Vcore DrMOS optimization
PCB main-loop ripple current resistive losses are often neglected and overlooked as a switching power supply loss component.
The self-powered current loop: Still a transducer-interface option
Although its capabilities are far less than those of many advanced transducer interconnections, the decades-old current loop may still be the best choice for many longer-distance, higher-noise situations.
Power Tips: Isolating a SEPIC
The SEPIC is a nonisolated topology. However, as with a flyback, you can easily add additional transformer windings to create isolated outputs.
Care and feeding of FPGA power supplies
This article will discuss constraining specifications for the Altera Arria 10 FPGA, and what they mean for a power supply design.
Linear thinking about motors
Most engineers think of motors as rotating arrangements, but some designs need linear motion.
Cascaded fans for cooling semiconductor assemblies
Air cooling of semiconductor assemblies is often aided by the use of a fan, but can you get greater air flow by using two fans in cascade?
Measuring powerful laser output takes a forceful approach
Instead of calorimetry for measurement of high-power laser output levels, a contrary approach uses the force of radiation pressure on a highly-reflective mirror.
Don’t let ESR waste power and cook capacitors
Equivalent series resistance not only degrades RF performance, but it wastes power and can cause the capacitor to exceed its dissipation rating.
Sensorless controlled inverter drive for BLDC motors
This article aims at contributing to the performance enhancement of brushless DC motor drive systems.