High-efficiency Orientation Insensitive WPT Systems Using Magnetic Dipole Coil for Low Power Devices

2021 ◽  
pp. 1-1
Author(s):  
Cancan Rong ◽  
Xiangrui He ◽  
Yingqin Zeng ◽  
Conghui Lu ◽  
Minghai Liu
Keyword(s):  
Low Power ◽  
Magnetic Dipole ◽  
High Efficiency ◽  
Power Devices ◽  
Efficiency Orientation

scholarly journals Low Power Cusped Field Thruster Developed for the Space-Borne Gravitational Wave Detection Mission in China

2021 ◽  
Vol 11 (14) ◽  
pp. 6549
Author(s):  
Hui Liu ◽  
Ming Zeng ◽  
Xiang Niu ◽  
Hongyan Huang ◽  
Daren Yu
Keyword(s):  
Low Power ◽  
Gravitational Wave ◽  
Attitude Control ◽  
High Efficiency ◽  
Experimental Investigations ◽  
Attitude Control System ◽  
Gravitational Wave Detection ◽  
Wave Detection ◽  
Wide Range ◽  
Institute Of Technology

The microthruster is the crucial device of the drag-free attitude control system, essential for the space-borne gravitational wave detection mission. The cusped field thruster (also called the High Efficiency Multistage Plasma Thruster) becomes one of the candidate thrusters for the mission due to its low complexity and potential long life over a wide range of thrust. However, the prescribed minimum of thrust and thrust noise are considerable obstacles to downscaling works on cusped field thrusters. This article reviews the development of the low power cusped field thruster at the Harbin Institute of Technology since 2012, including the design of prototypes, experimental investigations and simulation studies. Progress has been made on the downscaling of cusped field thrusters, and a new concept of microwave discharge cusped field thruster has been introduced.

Self-Reduction Quiescent Current Low Power Low Dropout Regulator for SoC Application

2012 ◽  
Vol 591-593 ◽  
pp. 2632-2635
Author(s):  
Lee Chu Liang ◽  
Roslina Mohd Sidek
Keyword(s):  
Low Power ◽  
Process Model ◽  
High Efficiency ◽  
System Stability ◽  
Cmos Process ◽  
Output Impedance ◽  
Load Current ◽  
Output Load ◽  
Quiescent Current ◽  
Low Dropout Regulator

A low power low-dropout (LDO) voltage regulator with self-reduction quiescent current is proposed in this paper. This proposed capacitorless LDO for Silicon-on-Chip (SoC) application has introduced a self-adjustable low-impedance circuitry at the output of LDO to attain stability critically during low output load current (less than a few hundred of micro-ampere). When the LDO load current increases, it reduces the LDO output impedance and moved the pole towards higher frequency away from the dominant pole and improving the system stability. When this happen, less amount of quiescent current is needed for the low-impedance circuitry to sustain the low output impedance. In this proposed LDO, the quiescent current that been used to sustain the low output impedance will be self-reduced when the output load current increases. Thus, the reduction of quiescent current at low output load current has tremendously improved the efficiency. The simulation results have shown a promising stability at low load current 0~1mA. The dropout voltage for this LDO is only 100mV at 1.2V supply. The proposed LDO is validated using Silterra 0.13μm CMOS process model and designed with high efficiency at low output load current.

scholarly journals DESIGN OF RF ENERGY HARVESTING SYSTEM FOR ENERGIZING LOW POWER DEVICES

2012 ◽  
Vol 132 ◽  
pp. 49-69 ◽  
Author(s):  
Norashidah Md. Din ◽  
Chandan Kumar Chakrabarty ◽  
Aima Bin Ismail ◽  
Kavuri Kasi Annapurna Devi ◽  
Wan-Yu Chen
Keyword(s):  
Energy Harvesting ◽  
Low Power ◽  
Power Devices ◽  
Rf Energy Harvesting ◽  
Energy Harvesting System ◽  
Rf Energy

scholarly journals Wireless Energy Transfer

2015 ◽  
pp. 63-91
Author(s):  
Aya Mabrouki ◽  
Mohamed Latrach
Keyword(s):  
Energy Transfer ◽  
Energy Harvesting ◽  
Low Power ◽  
High Efficiency ◽  
Microwave Energy ◽  
Wireless Energy Transfer ◽  
Design Considerations ◽  
High Efficient ◽  
Harvesting Techniques ◽  
Power Rectifier

This chapter proposes an overview of microwave energy harvesting with focuses on the design of high efficiency low power rectifying circuits. A background survey of RF energy harvesting techniques is presented first. Then, the performances of conventional rectifier topologies are analyzed and discussed. A review of the most efficient rectenna designs, from the state of the art, is also presented. Design considerations for low power rectifier operations are detailed and new high efficient rectifying circuits are designed and evaluated in both GSM and ISM bands under low power constraints.

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