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Recently, with research and development of SiC power devices, 1.2 kV SiC MOSFETs have become commercially available. The parasitic parameters, such as output capacitance, in each power device are not identical, because they depend on the device structure and material properties. Therefore, voltage sharing of turn-off operations under series-connection conditions of the power devices may be affected...
A general fault diagnosis method is proposed for modular dc-dc converter system. The magnetic component voltage in each module is chosen as diagnostic signal, which can be easily obtained by adding an auxiliary winding into each magnetic core. Based on the feature of these signals, two logical hardware circuits are designed to achieve fast fault detection for different demands. Fault can be detected...
A health monitoring method using the saturationregion resistance is proposed in this paper to identify the level of aging associated with power semiconductor switches inside a Boost converter. Power MOSFETs are one of the most age-affected components in power electronic converters, and the on-resistance has been proved to be the most significant aging factor in power MOSFETs. However, the small value...
The reverse recovery characteristics of the body diodes of planar and double-trench SiC MOSFETs are experimentally analyzed in switching tests and compared. The body diode of the trench SiC MOSFET shows improved performance, so that using an anti-parallel SBD to suppress the reverse recovery behavior becomes unnecessary. Following the switching tests, the devices are operated in continuous mode in...
This paper proposes new modulated carrier control (MCC) method for power factor correction (PFC) rectifier which provides high power factor (PF) and low total harmonic distortion (THD) regardless of continuous conduction mode (CCM) and discontinuous conduction mode (DCM). The proposed control method employs a modified MCC control circuit based on the conventional MCC using average current sensing...
This work deals with the implementation and development of a PSpice based modeling platform for 10 kV/100 A SiC MOSFET power modules. The studied SiC MOSFET power module is composed of a total of 9 dies connected in parallel with 10.0 kV blocking voltage capability. The proposed model was implemented based on the already established McNutt Hefner model originally developed for discrete single-die...
Nowadays system architectures based on Internet of Things (IoT) are becoming a pervasive topic in several applications. Smartphones integrate a growing number of high quality sensors and often they are used as gateways for external sensors, wearable sensors or sensors for ambient assisted living. Several recent projects about smart cities and smart living are experiencing sensory data management by...
In this paper, we simulate and investigate a novel Tunnel Field-Effect Transistor (TFET) using the charge plasma concept on the source side. Herein, an inverted p-type source is created to form a p+-n tunneling diode structure on a uniformly n-type doped thin silicon film, hence named, Inverted-TFET (I-TFET). Using calibrated simulations, we verify that the Ion is boosted (□ 20 times) in the proposed...
Hierarchical network architectures are widely deployed to reduce routing overheads and increase scalability. In our work, we are interested in deploying a P2P overlay in ultimately large-scale Mobile Ad-Hoc Networks (MANETs). We therefore study the performance of such an approach, creating a number of hierarchical network configurations and deploy Chord over them. The clusters are MANETs, running...
With the rapidly increasing applications of deep learning, LSTM-RNNs are widely used. Meanwhile, the complex data dependence and intensive computation limit the performance of the accelerators. In this paper, we first proposed a hybrid network expansion model to exploit the finegrained data parallelism. Based on the model, we implemented a Reconfigurable Processing Unit(RPU) using Processing In Memory(PIM)...
Crowd sensing exploits users' smart devices and human mobility to collect information on a large scale. To realize a crowd sensing campaign, sensing tasks with spatio-temporal requirements are distributed to the devices that can provide the requested information. Typically, the distribution of sensing tasks relies on a centralized communication infrastructure such as cloud servers. However, such an...
Physically Unclonable Functions (PUFs) offer enticing possibilities to incorporate hardware-based security on semiconductor device level. In order to make efficient use of PUF functionality in lightweight cryptographic applications, a low-overhead implementation in terms of chip area and power consumption is required. In this paper a fully differential readout circuit is proposed that allows the generation...
The performance of digital circuits can be improved by more efficient implementation. For certain circuits this can be done by using pass transistor logic. This paper compares pass transistor logic styles with the standard CMOS logic style. It will be shown that pass transistor logic is able to outperform the standard approach, not only by simulation but by measurements in silicon. Measurements have...
With the aid of a storage-release mechanism named key-keysmith, an implementation approach based on chemical reaction networks (CRNs) for synchronous sequential logic is proposed. This design approach, which stores logic information in keysmith and releases it through key, primarily focuses on the underlying state transitions behind the required logic rather than the electronic circuit representation...
The fundamental principle of the evolution of all material and element base of neural computing, in particular, is the preservation of the singularity of the mechanisms of its synthesis and functioning shown. The development of control algorithms and self-organization lies in the field of compatibility to singular processes and structures, where the neural associative computing has apparent advantages...
The paper describes the state-of-the-art of Long Short-Term Memory (LSTM) neural networks with fixation to context utilization in text documents. Context in text documents is utilized mainly in the natural language processing, machine reading, but also in other areas, for example in the information retrieval. In the areas where the context is taken into account, the LSTM finds wide appliance because...
The limits of the current electronic solutions restrict the use in harsh environments especially in high temperature (>300 °C). SiC is a material, which allows exceeding these physical constraints. AMPERE laboratory have developed SiC integrated circuits based on lateral MESFETs. This paper presents the first steps of the development of smart integrated driver circuit dedicated to harsh environments.
This paper presents a high performance 12 kW motor drive system for an aerospace application. In order to achieve higher power density and reliability, the system uses a PMSM motor, SiC MOSFET inverter, high performance PWM control, and liquid cooling with phase change material. A power density of 33 KW/KG was achieved for the power inverter and control electronics excluding the cooling loop, and...
This paper proposes an Active Gate Current Control (AGCC) strategy for non-insulating gate WBG devices, for example, gallium nitride gate-injection-transistor (GaN-GIT) and silicon carbide super junction transistor (SiC-SJT). It provides a tool for power converter designers to further improve the converter efficiency and to extend the life time of those higher cost power transistors. By continuously...
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