Isolation from the AC line is essential for user safety in many situations and can be implemented using a special isolation transformer as well as other means. “Isolation” is one of those terms which gets tossed around and is often cited as an almost universal, all-purpose cure for various ongoing or possible circuit and system […]
ac power sources/frequency converters
Low-cost power modules target motor control, ATE, medical, imaging apps
RECOM has partnered with a global OSAT company (Outsourced Semiconductor Assembly and Test) to extend its range of low-cost power modules. The RPX-1.0 and RPX-1.5 buck converters in miniature, thermally-enhanced 3mm x 5mm QFN packages with 1.6mm profile and feature innovative 3D power packaging technology. Construction is over-molded ‘Flip Chip on Leadframe’ (FCoL) with an integrated, […]
Half-bridge power stage delivers Rds(ON) down to 8.05 mΩ
Vishay Intertechnology introduced a new 40 V n-channel MOSFET half-bridge power stage that delivers increased power density and efficiency for white goods and industrial, medical, and telecom applications. Integrating high side and low side MOSFETs in one compact PowerPAIR 3.3 mm by 3.3 mm package, the Vishay Siliconix SiZ240DT provides best in class on-resistance and […]
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 […]
Zero-cross detection IC optimized for appliance power supplies
ROHM announces the availability of BM1ZxxxFJ, an integrated zero cross detection IC series, optimized for home appliances such as vacuum cleaners, washing machines, and air conditioners. The rising demand for smart appliances and IoT applications has added communication functionality (i.e. Wi-Fi) to home appliances. As it is necessary for such devices to always be ON to […]
SMD power inductors handle high temperatures, high currents
Sumida continues the expansion of its AEC-Q200 qualified SMD inductors with the introduction of the CDEP13D**/T150 line. Consisting of ten standard types and ten high-power types, the new devices offer a combination of four key benefits, when compared to many other inductors. These are high temperature, high current, high-insulation voltage, and magnetic shielding. Inductance values range from […]
Efficient fanless supplies deliver 1 kW
Advanced Energy Industries, Inc. announced the availability of its Excelsys CS1000 fanless power supply series. Delivering up to 1000W with no fans, this convection cooled family of highly efficient power supplies eliminates acoustic noise, vibration and the need for baseplate cooling, making them lightweight and ideal for use in a wide range of medical treatment […]
2.2-kW supplies bring Titanium-level efficiency to servers, storage, networking apps
Bel Power Solutions announced the TET2200 Series, 2200 W power supplies that bring Titanium level efficiency to servers, storage and networking equipment. With AC-DC power-factor-corrected (PFC) and high voltage DC-input variants, TET2200 Series power supplies provide a main output of 12 VDC for powering intermediate bus architectures (IBA). Measuring just 86.3 x 39.3 x 196.5 mm […]
When you don’t fuse the neutral wire
By the Power Guy, TDK-Lambda AC-DC power supplies for the medical market have long been not only safety certified to the IEC 60601-1 medical standard, but also to the industrial IEC 60950-1/IEC 62368-1 standards. Dual certification reduces the number of individual model numbers that must be produced and stocked; this practice improves production efficiency and […]
105-kVA regenerative grid simulator delivers 500VL-N at 1 kHz
A new 105 kVA model has been added to the 61800 series of Regenerative Grid Simulators currently offered in 30 kVA, 45 kVA and 60 kVA models. The 61800-100 105 kVA model answers the call for higher ac regenerative power. The 61800 Grid Simulator’s extensive feature set boasts state-of-the-art digital control technology. Standard models can […]
