scholarly journals Vacuum Driven Auxetic Switching Structure and Its Application on a Gripper and Quadruped

2020 ◽  
Author(s):  
Shuai Liu ◽  
Sheeraz Athar ◽  
Michael Yu Wang
Keyword(s):  
Switching Structure

scholarly journals A New Concept for Deeper Integration of Converters and Drives in Electrical Machines: Simulation and Experimental Investigations

Open Physics ◽  
2019 ◽  
Vol 17 (1) ◽  
pp. 809-815
Author(s):  
Hossam Al Ghossini ◽  
Thu Thuy Dang ◽  
Stéphane Duchesne
Keyword(s):  
Motor Drives ◽  
Electrical Machines ◽  
Experimental Investigations ◽  
Power Switching ◽  
Switched Reluctance ◽  
High Frequencies ◽  
Reluctance Motor ◽  
Switching Structure ◽  
Very High Frequencies

AbstractThis paper introduces a new concept for integrated electrical motor drives (IEMD) with the aim of minimizing the number of inverter’s power switching components. The latter is switched reluctance motor (SRM) based. The control strategy is jointly designed, inspired by Flyback power supplies operating at very high frequencies. A simple case study on an 8/6 SRM has been carried out. The study enables to highlight most challenging problems that have to be overcome in future works: overvoltages during switching due to the flux leakage, and the efficiency of the magnetic material constituting the machine at high switching frequencies. This concept turns out to be an interesting basis for a very advanced integration of the switching structure within electrical machines.

Large-Scale Wire-Speed Multicast Switching Structure Based on Multipath Self-Routing Switching Structure and Implemented on FPGA

2013 ◽  
Vol 756-759 ◽  
pp. 956-961
Author(s):  
Kai Cui ◽  
Hui Li ◽  
Zhi Pu Zhu ◽  
Fu Xing Chen
Keyword(s):  
Large Scale ◽  
Control Mechanism ◽  
Video Stream ◽  
Next Generation Network ◽  
Network Nodes ◽  
Generation Network ◽  
Switching Structure ◽  
Fpga Chip ◽  
And Control

Ensuring high quality of service (QoS) of multicast video stream over next generation network is a challenging issue, and how to implement the wire-speed multicast with hardware logical support in the network nodes of every hierarchy is a key solution to achieve high QoS multicast. Currently, the multicast packets are processed in this way, in which they are copied and then scheduled by ports, lastly, sent respectively. But this approach cannot ensure high QoS in real-time applications. Moreover, the traditional hardware solutions do not possess excellent large-scale scalability owning to their own bottlenecks. In this project, we have constructed a wire-speed multicast switching structure based on Multipath Self-routing Switching Structure, and implemented it on a Stratix IV FPGA chip. Additionally, we have designed the signaling system and control mechanism to support the process of self-routing and wire-speed fan-out copy of multicast packets.

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