Silergy Semiconductor Technology (Hangzhou) Ltd

Alibaba Group Holding Limited

Jiangsu Contemporary Amperex Technology Limited

Hangzhou Dianzi University

Jian Li

Wei Ye Chen

Bo Cai

Yuanyu Yang

Hui Liu

Zhiqun Cheng

Pengfei Li

Guohua Liu

Zhihua Dong

Congcheng Qi

Shuping Qu

Yingjun Li

Shixiong Zheng

Xu Zhang

Shiqi Li

A welding deviation detection device includes a pre-welding addressing mechanism that can determine relative position relations between location holes and poles in a battery, and send the relative position relations to a welding mechanism and a post-welding detection mechanism; the welding mechanism can detect first positions of the location holes, and determine first positions of the plurality of poles based on the first positions of the location holes and the relative position relation, so that the welding mechanism can accurately weld a bus assembly to the plurality of poles based on the first positions of the plurality of poles to form a plurality of welds; and a post-welding detection mechanism that can detect second positions of the location holes and positions of the welds, and detect welding deviation situations of the bus assembly and the poles based on the second positions of the location holes.

Battery, power utilization device, welding deviation detection device and welding deviation detection method

A control circuit for controlling a power converter can include: a constant voltage output module, a constant current output module, and a power stage circuit; and where the control circuit is configured to select one of a first feedback signal representative of output information of the constant current output module, and a second feedback signal representative of output information of the constant voltage output module as a feedback input signal based on operation states of the constant current output module and the constant voltage output module, in order to control a switching state of a power switch of the power stage circuit.

Control circuit, control method and power converter

An enhancement-mode III-V HEMT based on an all-solid-state battery is provided. In which, a second semiconductor layer and a first semiconductor layer are sequentially formed on a substrate, and a heterostructure is formed between the second semiconductor layer and the first semiconductor layer; a source electrode is electrically connected to a drain electrode through a 2DEG generated in the heterostructure; a gate electrode is used to control on-off of the 2DEG in the heterostructure; and an all-solid-state battery is arranged between the source electrode and the gate electrode, is composed of at least one group of battery units connected in series or connected in series and parallel, and is used to deplete the 2DEG in a corresponding region of the heterostructure.

Enhancement-mode III-V HEMT based on all-solid-state battery

A power converter can include an input circuit having a primary winding and a primary power switch coupled in series between an input terminal and the ground; a first output circuit having a first secondary winding which is coupled with the primary winding; a second output circuit having a second secondary winding coupled with the primary winding and at least one secondary power switch; a first control circuit that controls the primary power switch to be turned on and off to adjust an output signal of the first output circuit; and a second control circuit which controls the secondary power switch to be turned on and off to adjust an output signal of the second output circuit. The secondary power switch can be turned on before the primary power switch is turned off in a first state in one switching cycle, in order to reduce the switching interference.

Power converter

A power converter can include: an input circuit, including a primary winding and a primary power switch which are coupled in series between an input terminal and a first ground; at least one constant voltage output circuit, including a first secondary winding coupled with said primary winding; and at least one constant current output circuit, including a second secondary winding coupled with said primary winding, a secondary power switch, a current output port, a second rectifier circuit and a current sampling circuit. The second rectifier circuit can be coupled between the current output port and the second secondary winding, the current output port can be coupled to an LED as a load, the LED may be coupled between one end of the second secondary winding and a second ground, and the secondary power switch and the current sampling circuit can connect in series.

Protecting data is disclosed, including: analyzing, using one or more processors, a set of scripting resource source data to determine a plurality of semantic units; determining a tree-structured source data based at least in part on mapping values of the plurality of semantic units to respective ones of a plurality of semantic structures; selecting an obfuscation strategy to apply to the tree-structured source data, wherein the selected obfuscation strategy includes one or more obfuscation techniques; determining an obfuscated tree-structured source data based at least in part by applying the selected obfuscation strategy to the tree-structured source data; and converting the obfuscated tree-structured source data into a set of obfuscated scripting resource source data.

Protecting data

Growing community of inventors

Hangzhou, China

Jian Li