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EEWorld Online is dedicated to providing the most current and relevant topic for the electronics design engineers who are innovating for now and the future. Source
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| Scope | International |
|---|---|
| Language | English |
| Country | United States of America |
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Recent Articles
Search ArticlesAI data center power distribution: part 2
Efficiency, impedance, and power quality are key parameters to measure in data-center power-distribution networks. In part 1 of this series, we looked at the evolution of data-center power architectures in the age of artificial intelligence (AI). Here, we’ll look at some key power parameters and the test instruments needed to measure them. Q: What are some of the key parameters? A: The overriding concern is efficiency.
Edge AI systems support four GMSL2 cameras
Aetina Corporation has announced the DeviceEdge AIE-VN34/44 and AIE-VO24/34 palm-sized in-vehicle edge AI systems powered by NVIDIA Jetson Orin NX and NVIDIA Jetson Orin Nano modules. The systems deliver up to 100 TOPS or 67 TOPS of AI performance, support up to four GMSL2 cameras, use a 136.3 x 132 x 63 mm fanless chassis and operate from -25°C to +55°C with 9–36V DC input, MIL-STD-810H shock and vibration testing and E-Mark (E24) certification.
Proximity sensor integrates VCSEL, photodiode and 16-bit ADC
Vishay Intertechnology, Inc. has introduced the Vishay Semiconductors VCNL36829UM, a fully integrated short-distance proximity sensor in a 1.6 mm x 1.0 mm x 0.35 mm transparent mold package with VCSEL, photodiode, ASIC, 16-bit ADC and smart dual I²C slave address. The sensor supports a 50 mm operating range, 14-bit proximity resolution, sunlight immunity up to 200 klx, 5 μA idle current and a 1.65 V to 2.0 V supply range for battery-powered and space-constrained consumer designs.
Test enclosures provide 1cc cavities for miniature speakers
Same Sky® has introduced prototyping test enclosures for evaluating rectangular miniature speakers in 15 x 11 mm, 16 x 9 mm and 18 x 13 mm frame sizes. The BOX-1511-1CC, BOX-1609-1CC and BOX-1813-1CC create an acoustic cavity of about 1 cc to provide controlled rear volume during speaker testing and support comparison with specified performance. The enclosures are available now through distribution, with pricing starting at $1.99 per unit.
eGaN transistors support 101A space power conversion
EPC Space has announced three new eGaN® power transistors in plastic surface-mount PQFN packages for power conversion in space computing systems. The EPC7050PCSH, EPC7066PCSH and EPC7065PCSH support 15 V, 25 V and 40 V ratings respectively, each with 101 A continuous current capability, backside thermal pads, zero reverse-recovery charge and radiation ratings of TID > 1 Mrad, SEE LET(Si) 85 MeV cm²/mg and neutron > 4E15 n/cm².
AI data center power distribution: part 1
Power-distribution architectures are evolving to meet the energy needs of artificial-intelligence workloads. Data-center power consumption regularly makes headlines, with consumers fearing that data-center operators are driving up electricity prices. The IEA expects that power demands will continue to rise as data centers increasingly run demanding artificial-intelligence (AI) workloads.
How sensor placement and density impact thermal mapping in EV battery packs
Temperature sensors in electric vehicle (EV) battery packs measure temperature only where they are mounted. Nevertheless, a battery management system (BMS) must use limited local readings to reconstruct the pack temperature field, detect developing hot spots, and drive cooling decisions that reflect cell-level conditions. This article reviews how sensor placement and density affect BMS monitoring accuracy, hot-spot detection, and EV thermal management.
Multi-port PoE surge protectors support 100W pass-through
Antaira Technologies has announced the availability of the LSP Series, a line of IP30-rated multi-port Power-over-Ethernet (PoE) surge protection devices for industrial networks. The dual-port LSP-0200X-bt-100-T and four-port LSP-0400X-bt-100-T support 100W 802.3bt PoE++ pass-through per data line, data speeds from 10/100M to 10GbE and operation from -40°F to 167°F (-40°C to 75°C).
Tracking down sources of EMI/RFI
In my electronics lab, I am plagued with some odd high-frequency interference. When I’m looking at low-level signals with my scope set to 10, 20, or 50 mV/division, I can see repetitive waveforms with ~100 kHz and ~7 MHz content. This is especially insidious: It’s even present between adjacent earth ground connections. To track noise sources like these, a ‘scope may be useful, but as noted above, the noise seems to appear on my ground connections.
Beyond Symbols and Footprints: What PCB Libraries Need
By Alexsander Tamari, Technical Marketing Engineer, Altium Hardware design teams often treat the printed circuit board component library as a drawing repository, a collection of schematic symbols and 2D footprints required to pass a design rule check and generate Gerber files. But viewing a component library strictly through the lens of ECAD is a fundamental engineering problem.