Power

Aiming at vehicle traction, Infineon has put a pair of 3,300V 1,000A 1.9 mΩ silicon carbide trench mosfets into its 100 x 140 x 40mm ‘XHP 2’ module housing, calling the module FF2000UXTR33T2M1. This package is rated for 6kV testing, and achieves 2.6kV partial discharge extinction. Creepage is 40mm terminal to baseplate and 34mm between terminals. Clearance is 31 and ...

Hungarian state-owned energy company MVM Balance has ordered a 4.35MWh 750kW sodium-sulphur battery from NGK for a grid storage demonstration project. Due to be operational in May 2025, it will consist of three shipping-container-sized units, installed at a power station in Litér, Veszprém. “The project will verify the use of grid storage batteries for storing energy during times of surplus ...

Onsemi has announced a 112 x 62mm power module for flying capacitor boost converters up to 1kV. It combines 1kV silicon IGBTs and 1.2kV silicon carbide diodes in the company’s F5BP package. Called NXH500B100H7F5SHG, it can handle continuous collector currents up to 210A (630A pulsed) (Tj = 175°C). Abs max power dissipation is 305W. To reducing stray inductance and thermal ...

Bourns has added six shunt resistor types its Riedon range, that it acquired in April last year when it bought Riedon Inc. Construction is with brass end-caps holding Manganin resistance elements. The latter has a temperature coefficient ~±15ppm/°C. Kelvin contacts are provided for the voltage output. Panel-mount RS resistors have values from 41.7μΩ to 20mΩ (±0.25%). There are sub-versions here: ...

It seems to be Ideal Diode Week at Electronics Weekly (here and here) as Diodes is also promoting one, this time an ideal diode that can cope with ±65V on its input and drops only 20mV when conducting. The automotive-compliant AP74700Q operates down to 3.2V (or 3.9V at start-up) to allow for cold cranking of a vehicle engine. Inside, a ...

Power factor correction with CCM (continuous conduction mode) boost converters is where ITG Electronics is aiming its latest choke family. Specifically, the series is for converters operating at between 100 and 200kHz, and up to 3.3kW. There are four parts, from 90 to 285uH, all with a 43 x 35mm footprint and standing 38mm above the PCB. They can operate ...

National Grid has energised its 2.5km 275kV power tunnel between Hurst substation and Crayford, one of the transmission circuits in the 32.5km LPT2 route across south London. “The previous cables between Hurst and Crayford were reaching the end of their operational life, having been commissioned in 1967 and having served London reliably for decades,” according to National Grid, which explained: ...

If the consumer appeal of electric vehicles is to be maximised, keeping down the total cost of ownership is imperative, urges Till Wagner. One of the key areas where a real difference to increasing consumer appeal can be made is an electric vehicle’s (EV) energy storage reserves. The battery pack is an essential element of any EV design and one ...

The progress made in the electrification for passenger vehicles has led to an examination of batteries and charging technology for HGVs, observes Mark Patrick. Good progress has been made with passenger vehicles offering multiple electric models in a variety of categories, ranging from ‘ultra-compacts’ to sedans and pick-up trucks. Recently, the automotive industry began to electrify vans and similarly sized ...

Microchip Technology has announced a 32bit 200MHz version of its dsPIC33 series of DSP-heavy MCUs. dsPIC33A, as the family will be called, is aimed at fast closed-loop control of PSUs and motors. As with earlier dsPIC processors, the parts remain a combination of CPU and maths accelerator (‘DSP engine’), rather than a pure DSP architecture. In this fifth generation, the ...