TDK Corporation presents two new series of ThermoFuse varistors, which are equipped with monitor outputs and integrated thermal protective components for overvoltage protection. The MT25 series (B72225M*) currently covers a voltage range from 150 VRMS to 385 VRMS, and its maximum surge current capability is 20 kA at a pulse form of 8/20 µs, according to […]
inverters
Isolated gate drivers feature low latency, high switching speeds
Silicon Labs introduces new Si823Hx/825xx isolated gate drivers offering an uncontested combination of faster and safer switching, low latency, and high noise immunity capabilities that enable a compact PCB design for closer placement of the device to power transistors. New advancements in these gate drivers help power converter designers meet or exceed increasing energy efficiency standards […]
Power inverters accept 48 Vdc inputs for up to 3 kVA outputs
UNIPOWER LLC announces its new family of Bravo inverters that provide customers with a highly efficient and modular AC or DC power solution. The Bravo inverters offer a modular and fully scalable solution using hot-swap inverter modules at 2.5kVA 120VAC or 3kVA 230VAC. The Bravo ECI and TSI models are compact 2U (3.5 inch-high) rackmount […]
GaN 100-kW inverter reference design can handle 900-V power bus
VisIC Technologies Ltd. announced a breakthrough using GaN for 800V power-bus motor inverter that can be used for a cost-effective EV Motor Drive. University of Texas at Austin and VisIC Technologies cooperated on the 100kW inverter reference design that can be used as a base for Inverter designs for EV, Industrial, PV, and other applications. […]
Isolation technology helping solar power connect to grid
by Rudye McGlothlin, Silicon Laboratories Although solar cells were invented some 60 years ago, solar technology is just now becoming a mainstay energy source for utility operators as they move to offload fossil fuels and incorporate more renewable energy sources. Despite a slowdown in 2018 after a reduction in solar feed-in tariffs in several countries, […]
SiC-based inverter boosts EV charging efficiency with 800-V operation
Delphi Technologies is the first in the industry with volume production of an 800 V silicon carbide (SiC) inverter, one of the key components of highly efficient next-generation electric and hybrid vehicles. The new inverter enables electrical systems up to 800 volts, significantly extending electric vehicle (EV) range and halving charging times compared with today’s […]
High-efficiency inverters target PV, energy storage apps
Compared with traditional 3-level neutral-point-clamped topologies, the advanced neutral-point-clamped (ANPC) inverter design supports an even loss distribution between semiconductor devices. Infineon Technologies AG utilizes the ANPC topology for its hybrid SiC and IGBT power module EasyPACK 2B in the 1200 V family. Optimizing for sweet spot losses of the CoolSiC MOSFET and the TRENCHSTOP IGBT4 […]
