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Literature has shown that the interface circuit plays an important role in a piezoelectric energy harvesting (PEH) system. By referring to the general model of synchronized multiple bias-flip (SMBF) and the recent implementation of parallel synchronized triple bias-flip (P-S3BF), this paper introduces a new implementation called parallel synchronized septuple bias-flip (P-S7BF) for further enhancing...
Software-Defined Networking (SDN) is an emerging architecture and offers advantages over traditional network architecture, while there exist some scalability challenges. In this paper, we propose a multicast routing algorithm for SDN with segment routing to serve the bandwidth requirement of a multicast routing request. Our algorithm considers the balance of traffic load for network resource of link...
This paper proposes a reconfigurable scheme of wireless power transmission in fully-enclosed box. The proposed scheme includes one transmitting element and multiple parasitic elements. Field distribution inside the box is reconfigured by switching the parasitic elements' termination between open and short, with the aim of delivering wireless power efficiently to a receiver whose location is not fixed...
This paper presents the design and implementation of a series-SSHI-phi interface circuit for piezoelectric energy harvesting with improved operating frequency range. Adopting a nonlinear switching architecture, complex impedance matching can be achieved at off-resonance by introducing delay into switching timing. A buck-boost converter following the rectifier is used for resistive-load emulation and...
The smart grid is a typical cyber-physical system (CPS) utilizing more advanced information and communication technologies (ICTs), in which hierarchical control system (HCS) plays an essential role. However, it should be noted that for the same control function, HCSs could have multiple modes for making control decisions. They may have different cyber structures and information flows, which could...
This paper presents a 10-bit 1 kS/s SAR ADC in 0.13μm CMOS technology for ECG signal recording applications. Two new techniques are introduced:1) a novel DAC switching method designed for fully-differential SAR ADC which reduces half size of capacitors and 50% DAC switching energy; and 2) a novel dynamic latch-type comparator bias circuit to eliminate static power consumption. Our simulation shows...
The charge-trapping characteristics and trap levels of SiOx-based (TaN/SiO2/n++ Si-substrate) resistive switching memory (RS) have been investigated. Multilevel operation under compliance current control is demonstrated and current transport behavior is analyzed using the normalized conductance of low resistive state (LRS) and high resistive state (HRS). Temperature dependence of I-V characteristics...
This paper presents the switching super-capacitor balancing methods on robot power system, which is active balancing the charge of cells in a series connection cells strings. It is low losses, simple, and compact in size, which is easy from photo type implement to practical application. The equivalent switching resistor of super-capacitor balancing circuit is deduced for Simulink Simulation. The simulation...
The motor system with the motor, converter and controller is usually called the intergraded motor system[l]. The EMI produced by the integrative motor system becomes serious with the application of the power electronics device. According to analyzing the reason for the formation of common-mode EMI and propagation characteristic, the suppression method is presented by blocking EMI coupling path and...
The influence of ferroelectric polarization on the electrical properties of PZT/AlGaN/GaN metal-ferroelectric-semiconductor (MFS) structure is investigated by capacitance-voltage (C-V) measurements. A distinct unsymmetrical shift of the C-V profile is observed that when swept positively, the C-V curve shifts to the right with increasing the negative starting voltage, while hardly move with different...
Based on the analysis to the phenomenon and methods of denial-of-sleep attacking in wireless sensor network, a scheme is proposed employing fake schedule switch with RSSI measurement aid. The sensor nodes can reduce and weaken the harm from collision, exhaustion and broadcast attack and on the contrary make the attackers lose their energy quickly so as to die. Simulation results show that at a bit...
This paper proposes a novel method for analyzing the zero-sequence signal of three-level voltage-source inverter based on vector diagram partition. The inherent relationship between carried-based PWM and SVPWM is demonstrated. It is shown that the two method can worked equivalently through proper selection of active time for the redundant vector in the case of space vector modulation, or zero-sequence...
Online gaming has become a popular leisure-time activity in resent years. In this study, we adopted the push-pull-mooring model, which analyzes human migration behavior based on the demographic migration theory, to explain why players switch from an existing game to a new one. An empirical survey was conducted to collect data from 574 online gamers and then this data was analyzed using the structural...
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