The high electrical currents of fast charging are forcing designers to invent standard techniques for predictably modeling heat and cooling. Dr. Michael Ludwig, T&C Core Technologies TE Connectivity The only way electric vehicles (EVs) will ever catch on is if consumers can charge them up quickly. Consequently, manufacturers are developing high-power charging (HPC) schemes which […]
PSMA to host APEC 2020 Industry Session on 3D power packaging
The Power Sources Manufacturers Association (PSMA) Packaging Committee is sponsoring an Industry Session at APEC 2020 in New Orleans, La. titled, “Packaging Power Circuits to Make Small and Reliable Products.” Featuring speakers from leading industry and research organizations, the session (IS15) will present an up-to-date look at current and future packaging and manufacturing technologies utilizing […]
Cloud/browser-based platform enables remote RF analysis
A cloud and browser-based application platform enables users to perform RF analysis remotely, without having to purchase a permanent software license. With R&S Cloud4Testing, users take advantage of different Rohde & Schwarz software solutions for testing – the only thing required is internet access and a valid subscription. R&S Cloud4Testing is an innovative software-as-a-service (SaaS) […]
RF signal generators generate up to 2 GHz, include touch-screen operation
The TGR2050 series of next-generation Radio Frequency (RF) signal generators from Aim-TTi are now available at the electronics distributor Newark. The TGR2050 series includes TGR2051 and TGR2053 RF signal generators which provide exceptional performance with high signal purity, high frequency accuracy and stability, a large signal amplitude range, low phase noise and fast amplitude and/or […]
How wide bandgap technologies stack up
Cutting-edge power device technologies all have a niche. Here’s a rundown on the applications in which each one likely fits. Dr. Gerald Deboy, Dr. Peter Friedrichs Infineon Technologies The process of converting electrical power to different ac and dc levels and to mechanical motion has changed dramatically over the years. The development of “switched-mode” techniques […]
The basics of specifying ground-fault interruption equipment
Not all ground-fault interrupters are designed to protect living beings. Specialized industrial versions are optimized for maintaining the health of machinery and processes. Will Delsman NK Technologies Ground faults arise when current flows from an energized conductor to ground inadvertently. The return path of the fault current is through living beings or equipment touching the […]
Can a three-phase power supply operate from wye and delta ac inputs?
A few guidelines help clarify what three-phase input voltage best suits a particular large power system. TDK Lambda Technical Marketing AC-DC power supplies rated higher than 2.5 kW frequently have a three-phase ac input. In the U.S. the voltage can be 208/220 Vac or 480 Vac. In Europe, it is a “harmonized 400 Vac” which […]
Where fixed-ratio converters fit in high-power delivery systems
Fixed-ratio converters are often the best way of minimizing the electrical current sent over significant distances in the interest of better power efficiency. Phil Davies Vicor Corp. The vast majority of electromechanical or semiconductor loads require stable dc-dc voltage conversion and tight regulation to operate reliably. The dc-dc converters that perform this function are commonly […]
The try-before-you-buy route to energy efficient power design
Evaluation platforms help pick SiC components in power conversion circuits. Xuning Zhang, Levi Gant, Littelfuse, Inc. The quest for greener energy production and consumption has put a premium on high-efficiency power circuitry. In that regard, many modern power supplies and converters operate at much higher voltages that allow use of lower currents to minimize I2R […]
The 40-year battery pack
Not all primary batteries offer the low annual self-discharge rate needed for the lengthy lifespan of remote wireless devices consuming microamp-level currents. Sol Jacobs, Tadiran Batteries The vast majority of remote wireless devices are powered by primary (non-rechargeable) batteries that range from consumer-grade to industrial grade. Consumer-grade alkaline batteries deliver higher discharge rates of energy, […]