Traditionally, power converter design for energy storage systems (BESS) normally focuses on conversion efficiency and total harmonic distortion. In these designs, the battery is often modeled as a simple dc voltage source with fixed capacity and resistance. However, when it comes to high-density BESS and electric vehicle architectures, the interaction between the inverter’s switching strategy […]
Switches
65 W GaN flyback integrates 700 V switch and controller
STMicroelectronics has expanded its VIPerGaN family with the VIPerGaN65W, a 65-watt flyback converter that integrates a 700 V GaN power transistor and a quasi-resonant PWM controller in a 5 mm × 6 mm Power QFN package. The device is designed for USB-PD adapters, fast battery chargers, and auxiliary power supplies that require high efficiency in […]
Integrated RC device reduces SiC switching losses and ringing
Melexis has introduced the MLX91299, a silicon-based RC snubber designed for use with silicon carbide (SiC) power modules in automotive and industrial high-voltage systems. The device combines a resistor and a capacitor in a compact structure that supports the mitigation of voltage transients, oscillations, and parasitic effects that commonly occur in wide-bandgap power electronics operating […]
Dual-voltage Flash offers faster program and erase performance
GigaDevice has introduced the GD25NX family of dual-voltage xSPI NOR Flash devices, designed with a 1.8 V core and 1.2 V I/O interface. The series connects directly to 1.2 V system-on-chip designs without requiring an external booster, reducing overall power consumption and component count. The GD25NX line builds on earlier 1.2 V I/O products and […]
GaN-on-GaN design supports compact, efficient power conversion
Onsemi conductor has introduced a new generation of vertical gallium nitride (vGaN) devices featuring GaN-on-GaN architecture and designed to enhance power density, efficiency, and reliability in high-performance applications. Unlike lateral GaN structures built on silicon or sapphire substrates, the vertical configuration conducts current through the semiconductor material itself, enabling operation at higher voltages and switching […]
Liquid-cooled switch delivers 102.4 Tbps switching capacity per chip
Alpha Networks Inc. announced the launch of its 1.6T liquid-cooled switch equipped with the Broadcom Tomahawk 6 chip to deliver up to 102.4 Tbps of switching capacity. Designed for AI/cloud data center and high-performance computing (HPC) applications, the product addresses high-speed connectivity requirements for generative AI, large-scale multimedia streaming, and Internet-of-Things deployments through a direct […]
Sink, source switches protect USB-C power components
Alpha and Omega Semiconductor Limited announced two powerful Type-C sink and source protection switches. AOS designed these switches to increase the power delivery capability of USB Type-C ports to 240W, paving the way for Type-C extended power range (EPR) implementations. The AOZ13058DI offers overvoltage/overcurrent protection features suited for 48V Type-C sinking applications, while the AOZ15953DI provides the additional protection features […]
How do parasitic inductances affect switching performance?
Parasitic inductance is an often-overlooked factor in power electronics circuits. This FAQ examines how stray inductances in components and PCB layouts create voltage overshoots, electromagnetic interference, and efficiency losses in switching applications. Parasitic inductance is an unintentional and unavoidable characteristic of all electronic parts and their connections that reduces how well power electronics circuits switch. […]
Why is a gate driver essential for high-performance power switching?
Gate drivers are essential for wide-bandgap semiconductors like SiC MOSFETs and GaN HEMTs. These devices are better than regular Si devices in many ways. These advanced devices have faster switching speeds and operate at higher frequencies, necessitating optimized gate drive circuitry. This FAQ will cover three aspects of an essential gate driver, namely, crosstalk minimization, […]
Tab terminal relay delivers 20 A at 800 VDC with 0.9 W power consumption
FCL Components America, Inc., has released the FTR-E1J 20A, a tab terminal-type high voltage DC switching relay, based on its FTR-E1 series. It is screw mounted and does not use printed circuit boards. This new relay delivers 20A 800 VDC, 10A 1,000VDC higher voltage switching with no specific polarity requirements for the connection of load […]
