City University of Hong Kong

Peking University

Hebei Medical University

Kewei Wang

Shu Hung Henry Chung

Qi Sun

Wen Xu

Yi Mi

Xiaona Du

Fan Zhang

Jingshu Tang

Hailin Zhang

Jinlong Qi

Qingzhong Jia

Wenxuan Jiao

Diqun Zhang

Yan Fu

Yibing Wu

Shuangge Yang

An electrical circuit for reducing electromagnetic noise or interference in a power converter. The circuit includes at least one shunt capacitor arranged to connect with a grounded component of the power converter, wherein the at least one shunt capacitor is further arranged to be driven by an active control signal so as to sink a noise current originating from a noise source to the grounded component of the power converter, wherein the noise source is connected to the grounded component via a capacitive path formed by at least one stray capacitors.

Electrical circuit for reducing electromagnetic noise or interference in a power converter

A circuit arrangement for filtering an electric current, wherein the circuit arrangement is arranged between a power source providing the electric current and a load; and the electric current includes a first current component and a second current component. The circuit arrangement includes a first circuit arranged to receive and filter the first current component, a current control device arranged to receive and regulate the second current component so as to provide a regulated current to the load, and a control circuit arranged to provide a control signal to the current control device so as to control regulation of the second current component. The control circuit is further arranged to detect one or more operation parameters associated with the current control device, and to determine the control signal based on the one or more detected operation parameters.

Circuit arrangement for filtering an electric current

The present invention provides structural details of a thiazolopyrimidinone compound, a preparation method thereof, and use thereof in the manufacture of a medicament for the treatment of central nervous system diseases.

Thiazolopyrimidinone compounds and preparation methods and use thereof

A circuit arrangement for use in a power conversion stage and a method of controlling a power conversion stage includes at least two electronic devices connected in series, the at least two electronic devices including at least one active power electronic device operable in a plurality of operation states including an active linearly operated state; wherein the at least one active power electronic device is arranged to be controlled and to operate in the plurality of operation states in each of a plurality conversion cycles, such that a generation of electric harmonics in the power conversion stage is suppressed during an operation of the power conversion stage.

Circuit arrangement for use in a power conversion stage and a method of controlling a power conversion stage

The present invention provides new pyrazol-[1,5-a]-pyrimidone derivates and pharmaceutical compositions comprising said compounds and one or more pharmaceutically acceptable carriers or diluents. The uses of the compounds for the manufacture of potassium channel openers, anti-epilepsy medicaments, anti-anxiety medicaments and analgesic medicaments are also provided in the present invention.

Pyrazolo [1,5-a]-pyrimidones derivatives and pharmaceutical compositions and uses thereof

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Beijing, China

Kewei Wang