IEEE

Initial Position Detection and Polarity Identification for IPMSMs Using a Linear Time-Invariant Enhanced Phase-Locked Loop in HFSI

Abstract: This article proposes an improved position sensorless control method for interior permanent magnet synchronous motors (IPMSMs) using high-frequency square-wave injection (HFSI). Conventional ...
This is Money

More and more families are using this trick to slash inheritance tax bills. Experts reveal exactly how it works and whether it’s right for you

A growing number of families will soon fall victim to inheritance tax (IHT) and are desperately looking for ways to cut any bill that could end up in their lap if a loved one dies. Life insurance, ...
IEEE

Design of a Flexible BPF Using Coaxial Open-Loop Dumbbell Branch Defected Conductor Structures

Abstract: This letter introduces a flexible bandpass filter (BPF) that employs a coaxial structure, consisting of an inner substrate, an inner conductor featuring open-loop dumbbell-shaped defects, an ...