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A single-input multi-output Resonant Regulating Rectifier Generating Three outputs in a Half Cycle for Wirelessly Powered Biomedical Devices

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IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I-REGULAR PAPERS 2025年第6期72卷 2956-2969页

作者： Lee, Hyun-Su Eom, Kyeongho Lee, Hyung-Min Korea Univ Sch Elect Engn Seoul 02841 South Korea

This paper introduces single-input multi-output (SIMO) resonant regulating rectifier (R-3) designed to produce three regulated outputs in a half cycle without low drop-out (LDO) regulators. Utilizing distributed multi-phase control allows for the regulation of three outputs in a half cycle, leading to increased power delivered to the load (PDL), reduced output ripple, and a higher number of outputs. Additionally, the adoption of negative threshold gate driver (NTGD) and a hybrid high/low comparator (HCMP) enhances the output voltage regulation range and power conversion efficiency (PCE). To ensure the safe control of three distinct outputs in a half cycle, all three outputs are equipped with end protection techniques. Moreover, for a secure start-up of the secondary outputs, the proposed pre-biasing technique in the pulse width modulation (PWM) controller is implemented. The 1.54-mm(2) 0.25-mu m CMOS SIMO R-3 demonstrates the capability to generate three regulated outputs, with a maximum primary voltage and minimum secondary voltage difference of up to 3.5 V. Furthermore, a PCE of 90.82% is achieved with a total load power of 84.6 mW. These advancements position the SIMO R-3, especially with dynamic voltage scaling (DVS) stimulation, as a promising solution for efficient use in retinal prostheses.

关键词： Voltage control Rectifiers Retina Gate drivers Capacitors Regulation Pulse width modulation Transistors MOSFET Faces Biomedical IC hybrid high/low comparator negative threshold gate driver regulated multi-output voltages resonant regulating rectifier retinal prosthesis reverse control single-input multi-output three outputs wireless power transfer

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Sensitivity-based model-free adaptive displacement and velocity control algorithms for unknown single-input multi-output systems with recursive least squares

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JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY 2021年第11期35卷 5173-5185页

作者： Oh, Kwangseok Seo, Jaho Hankyong Natl Univ Sch ICT Robot & Mech Engn 327 Jungang Ro Anseong Gyeonggi Do South Korea Ontario Tech Univ Dept Automot & Mechatron Engn 2000 Simcoe St North Oshawa ON L1G 0C5 Canada

This study presents sensitivity-based adaptive model-free adaptive displacement and velocity control algorithms for unknown single-input multi-output (SIMO) systems using recursive least squares (RLS) with exponential forgetting. Nonlinearities in real-world systems make predictions of the dynamic behaviors of systems challenging and have a negative influence on the performance of control systems. To address this problem, the sensitivity-based model-free adaptive control algorithm, which does not require a mathematical model of a system, is proposed in this study. In the algorithm, a feedback control law for a SIMO system was designed with multiple adaptive feedback gains. The virtual function that represents the relationship between multiple feedback gains and control errors was also designed to construct an adaptation rule with a linear combination. The coefficients in the virtual function were estimated in real-time using RLS with multiple exponential forgetting factors. By using the estimated coefficients, the adaptation rule for feedback gains with the gradient descent method was designed, which can be automatically adjusted through applying Lyapunov's direct method. The performance of the proposed model-free adaptive control algorithm was evaluated in an actual DC motor system under angular displacement and velocity tracking control scenarios. Evaluation results show that the designed control algorithm enables the system to track the desired output successfully without system modeling.

关键词： Model-free adaptive control Control sensitivity Recursive least squares Forgetting factor Adaptation rule single-input multi-output Unknown system

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Data-driven method for a single-input multi-output dual-rate system

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IEEJ TRANSACTIONS ON ELECTRICAL AND ELECTRONIC ENGINEERING 2018年第12期13卷 1837-1838页

作者： Ito, Sho Sato, Takao Araki, Nozomu Konishi, Yasuo Univ Hyogo Grad Sch Engn 2167 Shosha Himeji Hyogo 6712280 Japan

We propose a new data-driven method for a single-input multi-output dual-rate system, in which the sampling interval of plant outputs is an integer multiple of the holding interval of a control input. In the proposed method, the dual-rate system is converted to a multi-input multi-output single-rate system, and controller parameters are optimized using one-shot closed-loop data. Furthermore, the ripple-free condition is clarified. Finally, the effectiveness of the proposed method is shown through a numerical example. (c) 2018 Institute of Electrical Engineers of Japan. Published by John Wiley & Sons, Inc.

关键词： data-driven method dual-rate closed-loop data lifting method single-input multi-output FRIT

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Comparative Analysis of single-input multi-output Inverter Topologies for multi-motor Drive Systems 15

Comparative Analysis of Single-Input Multi-Output Inverter T...

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15th International Conference on Ecological Vehicles and Renewable Energies (EVER)

作者： Al Sakka, Mustapha Geury, Thomas Dhaens, Miguel Al Sakka, Monzer Chakraborty, Sajib El Baghdadi, Mohamed Hegazy, Omar Vrije Univ Brussel MOBI Res Ctr ETEC Dept Pl Laan 2 B-1050 Brussels Belgium DRiV Inc Adv Suspens Technol Res Sint Jorisstr 5420 B-3080 St Truiden Belgium

ISBN: (纸本)9781728156415

This paper presents an all-inclusive review and comparative analysis of single-input multi-output (SIMO) inverter topologies, with some suggestions on selection of suitable configurations for automotive applications. With the rising trend in the automotive industry towards full vehicle electrification and autonomous driving, X-by-wire (XBW) technologies play an integral role in this transition. XBW systems employ multiple electric motors/actuators to perform the various vehicular functions such as traction, braking, steering and suspension. As the number of electric motor drives in the vehicle increases, challenges and problems in terms of cost, space, reliability, control and energy management, arise. The SIMO inverter architecture for power inverters, with its reduced component count and centralized control, presents a promising solution.

关键词： X-by-wire electric vehicle applications single-input multi-output inverter topologies multi-motor cost-effectiveness reliability

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A Novel single-input multi-output DC/DC Converter With Constant Current Mode Operation 31

A Novel Single-Input Multi-output DC/DC Converter With Const...

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31st Australasian Universities Power Engineering Conference (AUPEC)

作者： Lin, Zifan Deng, Hao Zhang, Xinan Iu, Herbert Ho-Ching Fernando, Tyrone Townsend, Chris Liu, Yulin Univ Western Australia Dept Elect Elect & Comp Engn Perth WA Australia Univ Western Australia UWA Dept Elect Elect & Comp Engn 35 Stirling Highway Crawley WA 6009 Australia

ISBN: (纸本)9781665434515

This paper presents a novel single-input multi-output (SIMO) DC/DC converter with high voltage conversion ratio in both voltage step-up and step-down mode. The proposed converter guarantees strong independent control ability for different output voltage levels and by using the two-stage structure and series connected current-source-mode (CSM) converters. The first stage uses a voltage-source-mode (VSM) buck converter to perform voltage step-down and provide a tightly regulated stable current;whereas the second stage uses series connected CSM converters which are inherently independent of each other thus to perform voltage step-up with a simpler control scheme and avoid cross-regulation issue. Its performance is verified by simulation results.

关键词： Current Source Converters single-input multi-output Light Emitting Diodes DC/DC Power Converter

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Study on performance and continuous durability test of single input multi output power take-off (PTO) gear boxStudie zur Leistung und Dauerfestigkeit eines Nebenantriebsgetriebes mit Einzeleingang und Mehrfachausgang

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MATERIALWISSENSCHAFT UND WERKSTOFFTECHNIK 2020年第5期51卷 665-675页

作者： Lee, Y. B. Lee, G. C. Park, J. W. Sung, B. J. Yang, J. D. Korea Inst Machinery & Mat Dept Reliabil Assessment Daejeon South Korea Chungnam Natl Univ Dept Mechatron Engn Daejeon South Korea

The power take-off (PTO) gearbox is widely used for special vehicles, large construction machinery, industrial machinery and ships, to distribute the power of a single input shaft from an engine or a motor to several shafts or to collect several shafts by single shaft power (Torque x rotation speed). The super large hydraulic excavator is equipped with a power take-off (PTO) gearbox between the main engine and a number of pumps for the purpose of improving the fuel efficiency and improving the system efficiency. The power take-off (PTO) gearbox of a large hydraulic excavator with a body weight of 100 ton ( = 10(5) kg) is connected with two large hydraulic pumps and one small hydraulic pump on three output shafts and different axial loads are generated depending on the working characteristics of the excavator. In this paper, we evaluated the performance and durability of a power take-off (PTO) gearbox of a large hydraulic excavator with a 100-ton body weight. The test evaluation criteria for non-fault life time calculation, performance and accelerated life test were established, and the types and characteristics of acceleration test equipment were analyzed. The torque distribution with the use of the gear phase difference to maintain the gearbox output condition was investigated, and energy was saved by circulating experimental power while controlling speed and load with two electric dynamometers. We analyzed the life of the gearbox by analyzing the metal particles generated in the lubricating oil of the gearbox.

关键词： Power take-off (PTO) gearbox hydraulic excavator durability test single-input multi-output torque distribution

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The Channel Impulse Response of SIMO Underwater Optical Wireless Communication link based on Monte Carlo Simulation 2

The Channel Impulse Response of SIMO Underwater Optical Wire...

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2nd West Asian Colloquium on Optical Wireless Communications (WACOWC)

作者： Majlesein, Behnaz Gholami, Asghar Ghassemlooy, Zabih Isfahan Univ Technol Dept Elect & Comp Engn Esfahan *** Iran Northumbria Univ OCRG Math Phys & Elect Engn Dept Newcastle Upon Tyne Tyne & Wear England

ISBN: (纸本)9781728137674

In underwater optical wireless communications (UOWC) the channel impulse response is essential in characterizing the link. In this paper we investigate the impulse response of the single input multiple output UOWC link using Monte Carlo simulation for different types of waters. We simulate the bit error rate (BER) performance for the proposed intensity modulation direct detection SIMO UOWC links for multiple receivers with a linear combining scheme by considering absorption, scattering, turbulence and all major noise sources. We show that, the clear, coastal and harbor waters display the best to the worth BER performance, respectively.

关键词： Underwater optical wireless communications (UOWC) impulse response single-input multi-output scattering turbulence

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Visible light communication for Vehicle to Everything beyond 1 Gb/s based on an LED car headlight and a 2 × 2 PIN array

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Chinese Optics Letters 2020年第11期18卷 32-37页

作者： Chaofan Wang Guoqiang Li Fangchen Hu Yiheng Zhao Junlian Jia Peng Zou Qiuyi Lu Jiang Chen Zhongya Li Nan Chi Academy for Engineering and Technology Shanghai Institute for Advanced Communication and Data ScienceKey Laboratory for Information Science of Electromagnetic Waves(MoE)Fudan UniversityShanghai 200433China

Visible light communication(VLC) shows great potential in Internet of Vehicle applications. A single-input multi-output VLC system for Vehicle to Everything is proposed and demonstrated. A commercial car headlight is used as transmitter. With a self-designed 2 × 2 positive-intrinsic-negative(PIN) array, four independent signals are received and equalized by deep-neural-network post-equalizers, respectively. Maximum-ratio combining brings high signal-to-noise ratio and data rate gain. The transmission data rate reaches 1.25 Gb/s at 1 m and exceeds 1 Gb/s at 4 m. To the best of our knowledge, it is the first-time demonstration of beyond 1 Gb/s employing a commercial car headlight.

关键词： visible light communication Internet of Vehicle Vehicle to Everything single-input multi-output deep neural networks maximum-ratio combining

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LED-Based Underwater Wireless Optical Communication for Small Mobile Platforms: Experimental Channel Study in Highly-Turbid Lake Water

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IEEE ACCESS 2020年 8卷 169304-169313页

作者： Wei, Wei Zhang, Chunlei Zhang, Wei Jiang, Wei Shu, Chang Qiao Xiaorui Naval Univ Engn Engn Coll Elect Wuhan 430033 Peoples R China

Underwater collaborative work between small mobile platforms (SMP) such as divers, litter submarine or AUV, requires a high data rate communication system which is compact, reliable, affordable and eye-safe. The high bandwidth of LED-based underwater wireless optical communication (UWOC) is an advantage. Artificial, emulated as well as simulated, turbid underwater channel has been studied recently, but no practical nature water. To fully meet the requirements of challenging turbid underwater channel scenarios for SMP, we demonstrated a green LED-based UWOC system up to a bandwidth of 3.4 MHz in a highly-turbid nature lake water. Through a contrast wireless optical communication (WOC) experiment in air, turbid water channel is observed to compensates the receiving signal amplitude attenuates after propagating a longer attenuation length due to multiple-scattered light caused diffusion, and thus to be more like a single-input multi-output (SIMO) system. From our experimental observation, the SIMO channel model could be employed not only in turbulent UWOC, but also in highly turbid UWOC. Moreover, turbid water channel is observed a "frequency selection" effect, thus LED with lower threshold voltage at higher frequency would optimize bandwidth and link range, and a robust pre-code for interference cancellation would be a well-direct choice to constructing different UWOC system in highly turbid water for SMP. Our finding will provide a new reference complementing the current LED-based UWOC systems in realistic water environment.

关键词： Light emitting diodes Optical transmitters Bandwidth Lenses Switched mode power supplies Modulation Optical fiber communication Underwater wireless optical communication channel turbid water LED wireless optical communication single-input multi-output visible light communication small mobile platform

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SIMO DC-DC Converter for E-Vehicle and Regenerative Braking Based on Simulation and Model Investigation

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ENERGIES 2022年第18期15卷 6818-6818页

作者： Suresh, Saahithi Raghu, C. N. Dash, Ritesh Kalvakurthi, Jyotheeswara Reddy Athikkal, Sivaprasad Subburaj, Vivekanandan REVA Univ Sch Elect & Elect Engn Bengaluru 560064 India SRM Inst Sci & Technol Dept Elect & Elect Engn Kattankulathur 603203 India Natl Inst Technol Silchar Dept Elect Engn Silchar 788010 Assam India

A single independent voltage source (Vin or Vbat) is used to regulate the speed of an E-vehicle (EV) with the same interval of switching pulses to generate different voltage ratios by charging/discharging the flying capacitors using a novel single-input multi-output (SIMO) DC-DC switched capacitor converter. In this work, various speed transmissions are generated for controlling the speed of EVs. The selected and regulated battery voltage are generated using the SIMO DC-DC converter. The proposed converter is used to generate seven different transmission in total, of which four transmissions are used for motoring (forwarding operation) and the other three transmissions act as regenerative braking. For motoring operation, the battery, fuel cell, and photovoltaic cell are used as a sources of energy, and for the regenerative braking, the regenerated voltage is fed back to store the battery. The SIMO DC-DC converter is used to support electronic accessories, such as LED lights, the EV audio system and other accessories, including mobile and laptop battery charging. The energy recovered during regenerative braking is used to charge the battery via a proposed SIMO DC-DC converter for different speed transmissions. In addition, simulation, modeling, and analysis are used to validate the proposed system. It is intended for a fixed voltage of 12 V and output voltages ranging from 12 to 48 V. The PSIM simulation tool is used to validate the system. The validation demonstrates that the suggested converter shows good evidence for both braking and regenerative braking operations.

关键词： switched capacitor converter single-input multi-output E-vehicle battery dual multiport

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