Results 51 to 60 of about 675,181 (253)

Design of Three-phase Unity Power Factor PWM Rectifier

Gong-kuang zidonghua, 2011
In view of problem of electric harmonic pollution produced by diode rectifier and phase-controlled rectifier, a three-phase unity power factor PWM rectifier was designed. The topology of power circuit, control strategy of PWM rectifier and design methods
LI Xiao-xi, SONG Jian-cheng, QU Bing-ni, GENG Pu-long, LIU Guo-rui   +4 more
doaj  

Research on a technique of wireless power transfer based on semi-bridge rectifier

Dianzi Jishu Yingyong, 2019
This paper proposed a technique of maximum efficiency and constant voltage output for wireless power transfer system. A semi-bridge rectifier is used to replace the common diode rectifier on the receiver side, and a Boost circuit is adopted to regulate ...
Lin Jiang, Xie Yue
doaj   +1 more source

Input Impedance Calculation of a Multi-Stage Rectifier Circuit

, 2019
We introduce an analytical method to calculate the input impedance of a multi-stage rectifier circuit. It is shown that the input impedance of a half-wave rectifier depends on the operating frequency, the input power level and the load resistance value ...
Hans Pflug, Visser, Hubregt, Keyrouz, Shady, Pflug, Hans, Shady Keyrouz, Hubregt Visser   +5 more
core   +1 more source

Thermal‐Driven Diode Polarity Switching From Competing Helical Superconducting States in WTe2/α‐Fe2O3 Heterostructures

Advanced Materials, EarlyView.
A Nb‐proximitized Josephson junction based on a WTe2/α‐Fe2O3 heterostructure exhibits a robust superconducting diode effect with programmable polarity. The diode direction can be trained by magnetic fields and switched by temperature cycling, revealing tunable finite‐momentum pairing states and competing superconducting states in symmetry‐broken ...
Enze Zhang, Grant Z. X. Yang, Zi‐Ting Sun, Xinhou Chen, Shishun Zhao, Chufan Chen, Chenhui Zhang, Fanrui Hu, K. T. Law, Hyunsoo Yang   +9 more
wiley   +1 more source

Harmonic mitigation in 18-pulse rectifier based on zigzag autotransformer by DC side auxiliary circuit [PDF]

, 2020
To improve the power quality of a multi-pulse rectifier, a zigzag 18-pulse uncontrolled rectifier with an auxiliary circuit at the DC side is proposed.
Liu, Jiongde, Wang, Ying, Chen, Tao, Chen, Xiaoqiang   +3 more
core   +1 more source

n‐Type Polymer Radio Frequency Rectifiers Operating at 18.5 GHz

Advanced Materials, EarlyView.
Combining an n‐doped polymer semiconductor with wafer‐scale asymmetric planar electrodes featuring work function‐engineered contacts yields radio‐frequency diodes and rectifying circuits operating at up to 18.5 GHz. The devices combine scalable manufacturing with an operating frequency previously unattainable by large‐area organic electronics ...
Lazaros Panagiotidis, Filip Aniés, Yiyang Yu, Mohammed Ghadiyali, Hendrik Faber, Zhanibek Bizak, Youssef Kabri, Pavlos Tzourmpakis, Suman Mandal, Linqu Luo, Temur Maksudov, Mohamad Insan Nugraha, Harold F. Mazo‐Mantilla, Patrice Vanelle, Julie Broggi, Khaled N. Salama, Udo Schwingenschlögl, Martin Heeney, Atif Shamim, Thomas D. Anthopoulos   +19 more
wiley   +1 more source

Design a High-Efficiency Rectifier Circuit Using Various Couplers for Microwave Power Transmission [PDF]

International Journal of Industrial Electronics, Control and Optimization
This paper presents an optimized microwave rectifier circuit that integrates various couplers to enhance RF-to-DC conversion efficiency. A comprehensive theoretical analysis and performance evaluation of different microwave couplers are conducted to ...
Mohammad M. Fakharian
doaj   +1 more source

Neuromorphic Electronics for Intelligence Everywhere: Emerging Devices, Flexible Platforms, and Scalable System Architectures

Advanced Materials, EarlyView.
The perspective presents an integrated view of neuromorphic technologies, from device physics to real‐time applicability, while highlighting the necessity of full‐stack co‐optimization. By outlining practical hardware‐level strategies to exploit device behavior and mitigate non‐idealities, it shows pathways for building efficient, scalable, and ...
Kapil Bhardwaj, Roshni Satheesh Babu, Yuxin Xia, Eva Bestelink, Radu Sporea, Nikos Hastas, Ioannis Zeimpekis, Dimitra G. Georgiadou, Sayani Majumdar   +8 more
wiley   +1 more source

Design of a new type of pre-charge circuit of single-quadrant frequency converter

Gong-kuang zidonghua, 2013
In view of problems of complex structure and control, high cost and big volume of contactor and charging resistance existed in traditional pre-charge circuit of single-quadrant frequency converter, a new type of pre-charge circuit of single-quadrant ...
TANG Bai-shan, HUANG Cui-bai
doaj  

Application of Acoustic Signals for Rectifier Fault Detection in Brushless Synchronous Generator

Archives of Acoustics, 2019
One of the most important issues that power companies face when trying to reduce time and cost maintenance is condition monitoring. In electricity market worldwide, a significant amount of electrical energy is produced by synchronous machines.
Mehdi RAHNAMA, Abolfazl VAHEDI
doaj   +1 more source