Vishay Intertechnology, Inc. introduced a new fourth-generation 600 V EF Series fast body diode MOSFET in the low-profile PowerPAK 10 x 12 package. Providing high efficiency and power density for telecom, industrial, and computing applications, the Vishay Siliconix n-channel SiHK045N60EF slashes on-resistance by 29 % compared with previous-generation devices while delivering a 60 % lower […]
Power Electronic Tips
SMD fuses optimized for battery over-current interruption
SCHURTER officially announces the launch of its newest addition to the SCHURTER Fuse portfolio: The fast-acting UHP High Current SMD Fuse, designed to safely interrupt high-energy overcurrent in battery systems. Specially designed for Safety Extra Low Voltage (SELV) applications, the UHP meets the high-breaking capacity requirements and fast trip time of an overcurrent situation by […]
600 V and 1200 V rectifiers reduce conduction and switching losses
Vishay Intertechnology, Inc. introduced 15 new FRED Pt Gen 5 600 V and 1200 V Hyperfast and Ultrafast rectifiers in the compact SOT-227 package. Offering the best conduction and switching loss trade-off for devices in their class, the Vishay Semiconductors rectifiers are designed to increase the efficiency of high-frequency converters and of soft-switched or resonant […]
Electronic fuse ICs provide protection, sensing, and control features
Littelfuse, Inc. announced the new eFuse Protection ICs product line, a series of four versatile circuit protection devices. The eFuse Protection ICs utilize an innovative design that provides a wide range of power inputs (3.3V to 28V) and integrated protection. In addition to overvoltage protection, these electronic fuses protect against overcurrent, short circuit, inrush current, […]
Dispelling Myths: Don’t believe it when they say you need a bipolar gate drive for eGaN FETs
Use of a negative gate drive can lead to a larger voltage drop during deadtime and severe losses. Andrea Gorgerino, EPC GaN devices have gone from initial R&D to mainstream designs over the last 15 years. Unfortunately there are many misunderstandings left-over from those early-stage developments or dead-end technology branches. One of the most pernicious […]
AEC-Q100-qualified IC load switches feature low-leakage currents
Two new Automotive grade AEC-Q100 I Q Smart load switch ICs, the AEC-Q100-qualified GLF1111Q and GLF1200Q, are rated for a wide temperature range (Grade 1 -40 to +125°C). The GLF1111Q provides industry-leading, battery-saving leakage current (2nA, typ.). The GLF1200Q features a true reverse-current blocking, which prevents a backup power source from being discharged when an […]
Current sensing for energy efficient power delivery
It pays to know the limitations and strengths of widely used methods of measuring current. Sam Locke • Allegro Microsystems Recent technological developments such as fast dc charging for electric vehicles and high-power processing in data centers drive the quest for delivering more power in smaller spaces. Congruent with that quest is the need for […]
Improving battery power efficiency for IoT devices
Nanopower ship mode and sleep mode can be optimized to reduce power consumption. Suryash Rai • Analog Devices Inc. In the connected world of the internet, power management is an important way to boost the efficiency of IoT applications. In most situations, the sensor node (data acquisition element) sits in a remote area and is […]
How input high-Z technology keeps down ADC power and size
Muxed SAR ADCs equipped with high-impedance technology can substantially reduce circuit footprint and energy use without compromising performance and accuracy. Sanjay Rajasekhar, Arvind Shankar • Analog Devices Inc. Muxed successive approximation register analog-to-digital converters (SAR ADCs) find use in applications that must constantly monitor multiple critical variables. In optical communications, laser biasing could be monitored […]
Advanced capacitors enable high-efficiency energy scavenging
Modern tantalum capacitors and supercapacitors make it possible for compact energy harvesting systems to power IoT MCU applications. Ron Demcko, Daniel West, Ashley Stanziola • Kyocera AVX Advanced tantalum capacitors and supercapacitors are enabling advanced ICs to be powered by compact and low-cost energy harvesting and scavenging sources. These developments make possible maintenance-free control systems […]