Abstract: This article presents a multiport power electronic transformer (PET) based on a three-phase four-arm full-bridge modular multilevel converter (MMC), which is suitable for the hybrid ac–dc ...

Pass Labs’ new HPA-1c refines the original with lower noise, a redesigned power supply, and stronger performance, but its $4,045 price puts it up against serious rivals from Bryston, Violectric, and ...

Good fortune saved the day, when an old university pal of John visited Arcam to have a product serviced. It turned out he was ...

Rotel has a long history (65 years) of creating high-quality, audiophile-level audio equipment, and the DX-5 is no exception to the reputation.

New data centers and factories are piling further pressure on grid deliveries but new manufacturing capacity will help to ...

Abstract: Power transformer emits continuous vibration signals during working, which contain plenty of impulses and fluctuations caused by mechanical faults, and these signals are the main data source ...