CONVERTER CIRCUIT AND OPERATING METHOD THEREOF
    113.
    发明申请

    公开(公告)号:US20170244329A1

    公开(公告)日:2017-08-24

    申请号:US15048157

    申请日:2016-02-19

    Inventor: Xiaodong Li

    Abstract: A converter circuit regulating power transfer from a power source to a load includes a first switching circuit arranged to be connected across an output of the power source, and including a plurality of switches. A second switching circuit including a plurality of switches is arranged to be connected across an input of the load. An inductive component electrically connects the first switching circuit with the second switching circuit. A controller is operably connected with the plurality of switches in both the first and second switching circuits, and receives a control signal for controlling switching of the plurality of switches in both the first and second switching circuit; generates gating signals to be provided to the plurality of switches in both the first and second switching circuit based on the control signal; and provide the gating signals to the plurality of switches in both the first and second switching circuit.

    Novel MAC Design for Wireless Hot-Spot Networks

    公开(公告)号:US20170111816A1

    公开(公告)日:2017-04-20

    申请号:US14945306

    申请日:2015-11-18

    Inventor: Li Feng

    Abstract: In widely deployed wireless “hot-spot” networks, nodes frequently join or leave, inelastic/elastic and saturated/non-satuarted flows coexist. In such dynamic and diverse environments, it is challenging to maximize the channel utilization while providing satisfactory user experiences. In this invention, one proposes a novel contention-on-demand (CoD) MAC scheme to address this problem. The CoD scheme consists of a fixed-CW algorithm, a dynamic-CW algorithm, and an admission control unit. The fixed-CW algorithm allows elastic flows to access limited system bandwidth; the dynamic-CW algorithm enables inelastic flows to contend for channel on demand and quickly adapt to network change; and the admission control unit rejects overloaded traffic for providing good user experiences. One then performs an asymptotic analysis to develop a simple but efficient admission control rule. Finally, extensive simulations verify that the scheme is very effective and the theoretical result is very accurate.

Patent Agency Ranking