Transphorm Inc. announced that its third generation, JEDEC-qualified high voltage GaN platform has passed the Automotive Electronics Council’s AEC-Q101 stress tests for automotive-grade discrete semiconductors. This achievement marks the company’s second automotive-qualified product line. And, notably, its most reliable given the Gen III GaN platform’s ability to perform at 175°C during qualification testing. Transphorm’s Gen III […]
DC/DC 15/20/30-W 1×1-in converters optimized to drive LDO regulators
TRACO Power announces the expansion of their THN 15/20/30 WI series of 15, 20 and 30 W dc/dc converters in the standard 1.00 x 1.00 x 0.40” inch package with ultra-wide 4-1 input ranges. These new 15 / 20 / 30 watt 5Vout models with “-A1” suffix feature an extended trim range up to 6VDC. […]
Power operating limits: How to choose the right power supply
Not all power supplies react to over and under-voltages and currents in the same way. It pays to know the tradeoffs of different approaches to protection. Ron Stull | CUI Inc. Power supplies can experience operating conditions outside normal specified limits, such as input under- or over-voltage, or variations in load and ambient temperature. These […]
Why wide bandgap HEMPTs excel at efficient power conversion
High electron mobility transistors reduce power supply size thanks to a special make-up that eliminates sources of energy loss. Andrea Bricconi | Wei Deng, Infineon Technologies AG It is an exciting time for power supply designers. We are learning how devices based on wide bandgap (WBG) materials such as silicon carbide (SiC) and gallium nitride-on-silicon […]
Power supply designers take a hard look at soft magnetics
The promise of high efficiency and small size brought by super-fast switching power supplies could be delayed by a lack of magnetic materials that are up to the task. Leland Teschler | Executive Editor Eyeball the schedule for APEC, considered the premier technical conference for power electronics, and you’ll notice a number of sessions devoted […]
Now or later? No time for time-of-use energy savings
Leland Teschler, Executive Editor One of the big justifications for smart home electronics and internet-of-things pipe dreams is a concept called time-of-use electricity billing. Long used for industrial concerns, the plan is to bring TOU billing to households, so they’ll be charged more for electricity they use during periods of peak use, less for juice […]
AC, DC power sources provide single and three-phase outputs up to 6,000 VA
The Asterion 4503 supplies AC and DC output power up to 4,500 VA or 4,500 W, and the Asterion 6003 supplies up to 6,000 VA or 6,000 W. Both units come in a 4U chassis and can supply single- or three-phase output power. Like the lower-power 1U and 2U models, Asterion Models 4503 and 6003 […]
Evaluation platforms wring out dc/dc railway converters up to 240 W
Evaluation platforms for dc/dc railway converters up to 240 W are available in either high voltage (-1) or high current (-2) layouts and include a RIA12 surge stopper. The R-REF04-RIA12-1 and R-REF04-RIA12-2 are complete reference designs for railway applications. The R-REF04-RIA12-1 board is populated with components rated for higher dc input voltages up to 110 […]
Linear vs. switching power supplies: Not always an easy choice
There are some uses that demand the low noise and fast response only available through traditional linear supplies. ALEX KARAPETIAN | ACOPIAN TECHNICAL CO. ASK almost any engineer about linear power supplies and the likely instinctive reaction will be, “Sorry, I can’t use them — they’re too inefficient.” Any possibility of using a linear supply […]
Keys to understanding resistor specs
The specification process for resistors involves more than just allowing for tolerance bands. Voltage, power, and temperature ratings can interact in ways that can degrade circuit reliability. Kory Schroeder, Stackpole Electronics, Inc. Although not a complex component, resistors have specifications that can be confusing, misleading, and misinterpreted. When specifying performance qualities, it is important to […]
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