A5100380784- Photonic and Optical Devices
- Radio Frequency Integrated Circuit Design
- Optical Network Technologies
- Semiconductor Lasers and Optical Devices
- Advancements in PLL and VCO Technologies
- Advanced Photonic Communication Systems
- Energy Harvesting in Wireless Networks
- Wireless Power Transfer Systems
- Advanced DC-DC Converters
- Analog and Mixed-Signal Circuit Design
- Multilevel Inverters and Converters
- Smart Grid and Power Systems
- Advanced Battery Technologies Research
- Low-power high-performance VLSI design
- Innovative Energy Harvesting Technologies
- High-Voltage Power Transmission Systems
- CCD and CMOS Imaging Sensors
- Acoustic Wave Resonator Technologies
- Microwave Engineering and Waveguides
- Electric Motor Design and Analysis
- Advanced Sensor and Control Systems
- Power Systems Fault Detection
- Advanced Optical Sensing Technologies
- Semiconductor materials and devices
- Microgrid Control and Optimization
Xi'an Jiaotong University
2016-2025
Hunan Railway Professional Technology College
2024
Hunan University of Technology
2024
Xi’an Children’s Hospital
2017-2024
KTH Royal Institute of Technology
2024
Harbin Engineering University
2023-2024
Yantai University
2024
People 's Hospital of Jilin Province
2023
Xiamen University
2022
Tsinghua University
2011-2021
A careful comparison between alternative topologies to realize low-noise wideband TIAs is carried out in this work. In order break the tradeoff noise and bandwidth, proposed front-end uses two stages, i.e. a narrowband transimpedance interface followed by an equalizer aimed at restoring required bandwidth. The technique especially effective for white components. core first-stage amplifier exploits current reuse minimum power consumption optimized colored reduction. net 4 × reduction achieved...
Due to the rise of 5G, IoT, AI, and high-performance computing applications, datacenter traffic has grown at a compound annual growth rate nearly 30%. Furthermore, three-fourths resides within datacenters. The conventional pluggable optics increases much slower than that traffic. gap between application requirements capability keeps increasing, trend is unsustainable. Co-packaged (CPO) disruptive approach increasing interconnecting bandwidth density energy efficiency by dramatically...
ABSTRACT An LC quadrature voltage‐controlled oscillator ( ‐QVCO) with novel compensated coupling networks to achieve both low supply sensitivity and phase enhancement is proposed. Designed fabricated in a standard 0.18‐μm CMOS process, the proposed QVCO improves noise rejection by more than 16.72 dB compared conventional ‐QVCO achieves error of < 0.86° within frequency tuning range from 3.32 3.52 GHz, whereas occupying core area 504 × 400 μm 2 consuming 3.2 mA including bias circuitry,...
In this paper, an adaptive delay time control (ADTC)-based CMOS active rectifier is proposed. Compared with previous rectifiers, power-hungry comparators are eliminated in structure. Instead, optimal on/off of the power switches generated by two current controlled lines (CCDLs), which enables drastic reduction rectifier. addition, multiple-pulsing problem due to introduced mechanism. The high-precision at picosecond-level precision removes reverse and guarantees high voltage conversion rate...
A voltage-controlled oscillator (VCO) with VCO-gain (KVCO) variation compensation is proposed to reduce KVCO in a current-mode logic (CML) ring by introducing cross-coupled pair capacitive degeneration that mitigates the nonlinearity of KVCO. Designed and fabricated standard 0.18-μm CMOS process, VCO can be tuned from 1.78 2.53 GHz, gain less than 14.01%, while occupying core area 0.185 × 0.081 mm <sup xmlns:mml="http://www.w3.org/1998/Math/MathML"...
Boost converter often exhibits large output voltage ripples and slow transient response due to the pulsating capacitor current right-half-plane zero in transfer function from duty ratio voltage. On contrary, a KY shows small fast compared with boost thanks its buck-converter-like characteristics. In this study, comprehensive study of an integrated considering parasitic resistance is presented as design guidelines for IC implementation, various aspects versus are also analyzed show...
It has been understood the large drawback of a CLLC bidirectional serious resonant converter is using three magnetic components, i.e., transformer and two inductors. In this paper, an integrated for simplifying boosting electrical vehicle (EV) plug-in (PHEV) on board charger module (OBCM) implementation performance proposed. The new including primary windings, one secondary winding, bobbin, core, are designed implemented. With integration, with high power density achieved while number its...
This paper presents a study of the isolated DC/DC stage Bi-directional on-board battery charger module (OBCM) for electric vehicle (EV) and plug-in hybrid (PHEV) application. The conventional series resonant converter secondary-side-switch delay-time control is employed. used to assist variable-switching-frequency primary switches reduce switching-frequency range. By utilizing gallium nitride (GaN) switches, operating frequency increased over 300kHz sizes passive components are reduced. new...
Constrained by the transimpedance limit, conventional 1-stage shunt-feedback amplifier (1S-SF-TIA) suffers poor noise and gain at higher data rates. In this paper, we propose to use a multi-stage stagger-tuned (MSTA) constitute TIA (MSTA-TIA), which not only transcends limit of 1S-SF-TIA, but also realizes reduction in multiple fronts. First, highgain MSTA enables 17X over effectively suppresses white noise. Second, least 2.8X~1.6X lower than amplifier, is essential form low-noise since...
Noise probably the single most important performance metric of high-speed transimpedance amplifier (TIA), which directly sets sensitivity optical receiver. The limit dictates maximum achievable gain TIA also turns out to fundamentally noise performance. In this tutorial, we analyze and explore two circuit design approaches overcome limit. first approach (Type I) realizes a divide-and-conquer methodology separate noise-bandwidth problem solve them individually. second II) employs multi-stage...
In order to study the thermal energy in process of fuse melting, data analysis is conducted on time/current curve provided by manufacturer. Data methodologies, such as sampling, variance analyze and residual sum squares analyze, are performed this process. These methods provide us most optimal equation describe relationship between time, different level fault current that melts fuse. A simulation model developed based result, tested both DC AC environment for verification purposes.
Wireless power transmission (WPT) system is widely used in implantable biomedical applications. Conventional management unit (PMU) the secondary side normally consists of rectifier and DC-DC converters series, which shows low conversion efficiency (PCE). In this work, we propose a single-stage AC-DC converter with dual regulated-outputs, combining output regulation full-wave active rectifier, not only improves efficiency, but also saves silicon area. Also, new scheme delay control designed...
BNAbs of V H 1-69 germline origin from a Chinese patient recognize the V3 glycan supersite via disulfide-locked long HCDR3 loop.
Wide-bandgap power devices are usually operated at a higher temperature or larger electrical bias and the harsh conditions often lead to early failure of widely used Ag-based die-attach materials due electrochemical migration (ECM). Common methods mitigate ECM tend be quite costly can only enhance performance slightly under high-temperature conditions. In this letter, novel nano-Ag-based designed prepared by doping with 0.1 wt% Si nanoparticles. The affinity oxygen reduces oxidation silver...
A procedure of the energy based fuse model development is presented in paper. model, including both pre-arcing and arcing characteristics from any given time-current characteristic curve, was developed. The developed on through fuses. Curve fitting technique can determine melting time accurately. tested validated via simulations. built Matlab/Simulink parameters be input a user interface.
In this paper, we consider the energy-efficient power allocation in downlink of a large-scale multiple-input multiple-output (MIMO) system under both quality service (QoS) constraints and maximum transmit constraints. With these two satisfied, resource strategies are proposed, which aim to maximize energy-efficiency defined as successfully delivered information bits per Joule energy consumed (in bits/Joule). Moreover, consumption consists circuit power. our work, original problem is...
Multiple loops have been used extensively to enhance the system performance in various applications. However, increasing complexity of multi-loop systems also makes them much more difficult analyze and implement. In this paper, a new methodology is proposed. proposed framework, are regarded be built upon sub-modules cascade, parallel adding, feedback units, then, they simplified following certain procedure based on correlation Bode characteristics segmented sub-modules. Applying methodology,...
Compost-derived humic acids (HAs) as cheap soil conditioners have potential to facilitate pentachlorophenol (PCP) bio-dechlorination but lack proof and studies. To clarify this, PCP mediated by compost-derived HAs under Fe(III) reduction conditions was investigated. Reverse phase high-performance liquid chromatography size exclusion were employed identify the functional components within HAs. Our results showed that facilitated of conditions, four kinds byproducts detected during process....