Alibaba Group Holding Limited

Zhejiang University

Advanced New Technologies Co., Ltd.

Hao Li

Dehong Xu

Rong Jin

Cong Leng

Wenxing Zhong

Zesheng Dou

Shenghuo Zhu

Disclose is a wireless electric energy transmission system for realizing PFC through secondary side modulation. According to the system, on the basis of a traditional wireless charging system topology, a traditional PFC circuit is removed, a grid voltage is turned into a 100 Hz voltage through uncontrolled rectification to directly supply power to an inverter of a primary side of a wireless charging system; an active full-bridge rectifying structure is adopted at a secondary side, and the PFC function is achieved only through secondary side modulation, wherein under the situation that a phase shift angle &#x3b1; of the inverter of the primary side is given.

Wireless electric energy transmission system for realizing PFC through secondary side modulation

Techniques related to login information data processing are described. In one example method, a smart contract is created based on a predetermined smart contract template. The smart contract includes login information corresponding to a user. The created smart contract is stored at a storage address in a blockchain network based on the identifier. A login information query request is received from the user, and the login information query request includes the identifier. At least one smart contract is retrieved from the blockchain network based on the identifier, and the smart contract corresponding to the user is determined from the at least one retrieved smart contract. The smart contract corresponds to the user is executed to obtain at least one login information, and sending the obtained login information to the user.

Login information data processing

A method including receiving, by a processor, a computing instruction for a neural network, wherein the computing instruction for the neural network includes a computing rule for the neural network and a connection weight of the neural network, and the connection weight is a power of 2; and inputting, for a multiplication operation in the computing rule for the neural network, a source operand corresponding to the multiplication operation to a shift register, and performing a shift operation based on a connection weight corresponding to the multiplication operation, wherein the shift register outputs a target result operand as a result of the multiplication operation. The neural network uses a shift operation, and a neural network computing speed is increased.

Neural network computing

Growing community of inventors

Hangzhou, China

Hao Li