Current measurement of the semiconductor switches can provide critical analytics for protection, control, and several further applications, especially high-frequency power electronics. Therefore, there is a requirement switch current that fulfill required speed accuracy in higher-frequency applications. Along with numerous existing sensing methods, PCB-embedded Rogowski coil sensor one best to be cast off high-power compact designs medium This due their linear magnetic permeability (in PCB...

High-frequency power electronics require a more tailored design process, as well compatible instrumentation necessary for operation and maintenance. Hence, there is need high bandwidth, compact, accurate current measurement solution to serve the trending high-frequency electronics. Embedded Rogowski sensor among favorites, due its compactness, integrability. However, inability measure dc components setting it back be used an integrated switch-current wide-bandgap This letter presents...

Amongst several existing non-invasive switch current measurement solutions, the PCB-embedded Rogowski coil has a few more advantages to be used for high-frequency, compact, and high-power designs, especially due being air-cored. This is while, negligible low-frequency gain, as well integrator circuit configuration, resulting in droop detector output. Increasing nominal switching frequency hundreds of kilohertz above causes issue become much complicated tackle, such that, provisional...

In this paper, a compound current sensor suitable for fast switching (or similar applications) measurement is presented. The consists of two transformers (CT) with (very) different operating working frequency bandwidth (BW) values. outputs each transformer are conditioned and aggregated together through an all-passive impedance network. Hence, wideband (10Hz-10MHz) obtained, having gain -20 dB or the sensitivity 100 mV/ A without any amplification. Therefore, proposed sensing solution...

Hybrid current sensors are becoming increasingly common in applications, such as power electronics, due to their ability cover an ultrawide frequency range by combining a DC/low-frequency detector with high-frequency transducer. Designing measure switching waveforms proposes challenges considering size and dimensions, intrusiveness (or parasitic elements losses), nonlinearity temperature drift), EMI immunity, accuracy, cost. This work provides design considerations optimize hybrid...

With the introduction of high frequency semiconductor devices and converters, wideband, lossless accurate current measurement is key to achieving highly efficient power conversion. Magnetoresistors (MR) provide an alternative solution isolated contactless monitoring in converters. However, there few literature on their application for electronics In this work, detailed characterizations two different Magnetoresistive elements, Anisotropic Magnetoresistor (AMR) Giant (GMR) are performed...

This paper presents a novel short circuit protection strategy for wide-band gap power electronics converter composed of multiple half-bridge legs. The main approaches the proposed are single point monitoring (SPM) indicating events occurred in switching legs and non-invasive implementation an ultra-fast current detection strategy. Ultra-high frequency (UHF) AC current, tens or hundreds MHz, flowing through decoupling capacitor represents To capture UHF noninvasive MHz bandwidth magnetic...

Based on the recent advancements of Wide Bandgap (WBG) semiconductor technology, substantial interests have been evolved towards high-power high-frequency WBG power converters. Given superior characteristics devices, it is possible to achieve higher density by paralleling these MOSFETs. In order optimize performance such designs, crucial ensure balanced current distribution between all paralleled devices. Therefore, necessary means monitoring this distribution, optimized design performance....

PCB-embedded coil realization is particularly suitable for ultrafast current sensing, due to its di/dt detecting principle and ease of integration into power converters. In one possible implementation, a Rogowski sensor utilized measure switching currents, since there no theoretical limit coil's magnetic saturation. There are, however, some challenges associated with existing EMI emission, dV/dt coupling, bandwidth difference that often complicate the design circuits choice appropriate...

PCB-Embedded Rogowski coils are particularly suitable for high-bandwidth current sensing in many applications due to their electrically contactless nature, the absence of a magnetic core (thus resulting smaller sizes and no saturation), ease integration. can generally be manufactured using an air or PCB core, plus circuitry integrator processor. This is while, physical characteristics layout quality system affect overall accuracy measurement PCB-embedded coils. Particularly, winding...

Semiconductors require non-intrusive current sensing elements to enable real-time monitoring and control of power converters' operation. Due extreme conditions tight constraints in electronics converters, developing a measurement scheme for switching-current is challenging. As an example, most sensors are not suitable lateral GaN switches because their extremely layout requirements, high EMI emission levels, rapid switching speeds, typically, spiral coils or flat-shaped contactless reading...

On the recent advancements in current sensor field, single chip contactless sensors enable end users to efficiently monitor switching modern power electronics systems. This work further investigates a novel low-cost measurement technique based on Magnetoresistive (MR) sensors. The process uses sensing unit, measuring mismatch between two parallel Gallium Nitride (GaN) MOSFETs, which would be used for prognostic and protection purposes. magnetic field distribution analysis of GaN devices...

There has been a growing interest in hybrid current sensors since they can combine DC/low-frequency detector with high-frequency transducer to cover an ultrawide range of frequencies. Hybrid are used variety applications, such as power electronics, motor control, and medical technology. They also for safety monitoring quality measurements. As result their size/bulkiness, EMI immunity, intrusiveness (or the introduction parasitic elements losses), nonlinearity (due magnetic core saturation or...

Gallium Nitride (GaN) wide-bandgap semiconductor devices are set to be a much suitable candidate for the next generation of power conversion systems. Device current monitoring and reliability assurance play crucial role in optimizing GaN transistors performance. This work presents investigation analysis on viable contactless point field detector required sensing mismatch between paralleled modules. By current-sharing behavior per each pair transistors, proposed solution provides data...

Through the development of wide-bandgap semiconductor devices, power electronics systems are enabled to operate at higher switching frequencies, requiring minimally invasive current sensing solutions allow real-time monitoring and control system. The majority sensors available on a commercial level, however, do not possess many properties needed for high-frequency converters (physical dimensions, bandwidth, noise immunity, isolation, circuit invasion). While clamp-shaped transducers (such as...