Abstract: A lighting device includes a light housing; a light source disposed at least partially in the light housing; a battery pack with a height dimension H1 defined; and a battery pack receiving portion formed on or connected to the light housing. The light housing includes a first state with a height dimension H2 and a second state with a height dimension H3 along a height direction of the light housing, the height dimension H2 in the first state is less than the height dimension H3 in the second state, and the height dimension H2 in the first state is less than or equal to the height dimension H1 of the battery pack.

Abstract: A tunable termination resistor circuit associated with a line driver in a line on-chip is provided. The circuit includes a first current source and a first resistor coupled to the first current source and the line. The circuit also includes a first diode comprising a first terminal and a second terminal, the first terminal being coupled to the first resistor and the second terminal being coupled to a gate of a transistor, the gate being coupled to a gate voltage. The circuit also includes a capacitor coupled to the gate and the source of the transistor. The circuit also includes a third resistor coupled in series to a fourth resistor in the line each of the third resistor and the fourth resistor comprising a resistance changed by the gate voltage. There are other embodiments as well.

Abstract: The present application provides a battery cell, a battery, and an electric device. The battery cell includes a housing, a pressure relief mechanism, and a protective member. The housing includes a wall portion. The pressure relief mechanism is provided at the wall portion, and can be actuated to release gas within the housing in a case where an internal pressure or temperature of the battery cell reaches a threshold value. The protective member has a melting point greater than or equal to 300° C., and the protective member covers at least part of the pressure relief mechanism in a thickness direction of the wall portion.

Abstract: In some aspects, the disclosure is directed to methods and systems for an amplifier having common mode feedback inputs. The inputs are coupled to various points within an amplifier wherein a first set of directly coupled common mode feedback inputs join the amplifier one or more nodes, and a second set of capacitively coupled common mode feedback inputs are joined to the amplifier at one or more different nodes.

Abstract: Provided are a battery cell, battery, and an electrical equipment. The battery cell includes a housing and a first insulating member. The housing provides a welding mark region. The first insulating member is arranged on an outer surface of the housing, and the first insulating member provides a first thickened region, wherein the first thickened region covers at least a portion of the welding mark region. This reduces the risk of the welding mark region piercing through the first insulating member, which could cause insulation failure of the battery cell. Thus, the insulation performance of the battery cell is improved.

Abstract: The present application is directed to electrical circuits. In a specific embodiment, the present invention provides a circuit, which includes a digital-to-analog converter configured to provide analog signals at a first output by converting digital signals. The analog signals include a pair of differential signals. The pair of differential signals is characterized by a first voltage swing at the first output. The circuit also includes a pair of differential lines coupled to the first output for transmitting the pair of differential signals. The circuit additionally includes a differential line driver coupled to the pair of differential lines. The differential line driver is configured to amplify the differential signals to a second voltage swing at a second output. The circuit additionally includes a third output coupled to the pair of differential lines. The circuit also includes a first sub-circuit coupled from the second output to the first output and configured to provide negative feedback.

Abstract: A tunable termination resistor circuit associated with a line driver in a line on-chip is provided. The circuit includes a first current source and a first resistor coupled to the first current source and the line. The circuit also includes a first diode comprising a first terminal and a second terminal, the first terminal being coupled to the first resistor and the second terminal being coupled to a gate of a transistor, the gate being coupled to a gate voltage. The circuit also includes a capacitor coupled to the gate and the source of the transistor. The circuit also includes a third resistor coupled in series to a fourth resistor in the line each of the third resistor and the fourth resistor comprising a resistance changed by the gate voltage. There are other embodiments as well.

Abstract: A tunable termination resistor circuit associated with a line driver in a line on-chip is provided. The circuit includes a first current source and a first resistor coupled to the first current source and the line. The circuit also includes a first diode comprising a first terminal and a second terminal, the first terminal being coupled to the first resistor and the second terminal being coupled to a gate of a transistor, the gate being coupled to a gate voltage. The circuit also includes a capacitor coupled to the gate and the source of the transistor. The circuit also includes a third resistor coupled in series to a fourth resistor in the line each of the third resistor and the fourth resistor comprising a resistance changed by the gate voltage. There are other embodiments as well.

Abstract: The present disclosure provides a graphene sensor and a preparation method and use thereof, and relates to the technical field of sensors. The graphene sensor according to the present disclosure includes a substrate, and an electrode layer and a functionalized graphene film that are laminated on a single side of the substrate, where the functionalized graphene film is obtained by modifying a graphene film with triethylamine. According to the present disclosure, the triethylamine is used as a probe to modify the graphene film, so that nitrate nitrogen can be sensitively and accurately measured. The graphene sensor according to the present disclosure identifies an object to be measured based on chemical functional groups instead of a biological method, and has low costs and high chemical stability.

Abstract: A battery cell includes a shell, an electrode assembly and an electrode terminal. The shell includes a wall portion provided with a lead-out hole. The electrode assembly is accommodated in the shell, and includes an active substance-coated portion and a tab disposed at an end of the active substance-coated portion facing the wall portion. The electrode terminal includes a terminal body and a position-limiting portion, the terminal body penetrating into the lead-out hole, and the position-limiting portion including a first extending section protruding out of a peripheral surface of the terminal body along a first direction. The tab includes a first connecting portion and a second connecting portion, the second connecting portion being located at one side of the first connecting portion along the first direction, the first connecting portion being connected to the active substance-coated portion, and the second connecting portion being connected to the first extending section.

Abstract: Provided are image processing assembly, chip, image processing method and storage medium.

Abstract: The present application provides a battery cell, a battery, and an electric device. The battery cell includes a housing, a pressure relief mechanism, and a protective member. The housing includes a wall portion. The pressure relief mechanism is provided at the wall portion, and can be actuated to release gas within the housing in a case where an internal pressure or temperature of the battery cell reaches a threshold value. The protective member has a melting point greater than or equal to 300° C., and the protective member covers at least part of the pressure relief mechanism in a thickness direction of the wall portion.

Abstract: A battery cell, a battery, and an electric device are disclosed. The battery cell includes a housing with an inner cavity, an electrode assembly positioned within the cavity, and an exhaust structure located between the electrode assembly and a first wall of the housing. The exhaust structure includes a fluid channel configured to guide airflow. By positioning the exhaust structure within the inner cavity and between the electrode assembly and the housing wall, the airflow can pass through the fluid channel with reduced obstruction. This design allows airflow to reach a designated area more efficiently, thereby enhancing the reliability of the battery cell.

Abstract: Provided is a milk frother, relating to the technical field of milk frothers. The milk frother includes a base, a milk frother body and a blade assembly. A drive assembly is disposed within the base. An output shaft of the drive assembly is connected to a drive turntable. A first magnet is disposed on the drive turntable. The milk frother body is detachably connected to the base. A thimble assembly is disposed within the milk frother body. The thimble assembly is securely connected to the bottom wall of the milk frother body. The blade assembly is sleeved on the thimble assembly and keeps a preset distance m from the bottom wall of the milk frother body. A second magnet is disposed within the blade assembly and configured to magnetically connect to the first magnet.

Abstract: A jelly roll battery cell, a battery, a battery assembly and an electric device. The jelly roll battery cell includes a main body portion and a tab portion; one side of each positive winding portion in one part of positive winding portions is connected to one positive tab, and one side of each positive winding portion in the other part of the positive winding portions is connected to two positive tabs; and/or, one side of each negative winding portion in one part of negative winding portions is connected to one negative tab, and one side of each negative winding portion in the other part of the negative winding portions is connected to two negative tabs.

Abstract: Provided are a battery cell, battery, and an electrical equipment. The battery cell includes a housing and a first insulating member. The housing provides a welding mark region. The first insulating member is arranged on an outer surface of the housing, and the first insulating member provides a first thickened region, wherein the first thickened region covers at least a portion of the welding mark region. This reduces the risk of the welding mark region piercing through the first insulating member, which could cause insulation failure of the battery cell. Thus, the insulation performance of the battery cell is improved.

Abstract: A lighting device includes a light housing; a light source disposed at least partially in the light housing; a battery pack with a height dimension H1 defined; and a battery pack receiving portion formed on or connected to the light housing. The light housing includes a first state with a height dimension H2 and a second state with a height dimension H3 along a height direction of the light housing, the height dimension H2 in the first state is less than the height dimension H3 in the second state, and the height dimension H2 in the first state is less than or equal to the height dimension H1 of the battery pack.

Abstract: The present disclosure belongs to the technical field of heat exchangers, and provides a heat exchanger based on a Gyroid/Diamond (GD-type) hybrid minimal surface-based disturbance structure. The heat exchanger includes a core, headers, and flanges. The core includes a cold fluid channel and a hot fluid channel, the cold fluid channel and the hot fluid channel are separated by a parting sheet. An inlet and an outlet of the cold fluid channel are separated from an inlet and an outlet of the hot fluid channel by sealing bars. A GD-type hybrid minimal surface-based disturbance structure is inserted into the hot fluid channel. A cold fluid and a hot fluid are distributed in a cross-flow manner.

Abstract: The present disclosure belongs to the technical field of heat exchangers, and provides a heat exchanger based on a Gyroid/Diamond (GD-type) hybrid minimal surface-based disturbance structure. The heat exchanger includes a core, headers, and flanges. The core includes a cold fluid channel and a hot fluid channel, the cold fluid channel and the hot fluid channel are separated by a parting sheet. An inlet and an outlet of the cold fluid channel are separated from an inlet and an outlet of the hot fluid channel by sealing bars. A GD-type hybrid minimal surface-based disturbance structure is inserted into the hot fluid channel. A cold fluid and a hot fluid are distributed in a cross-flow manner.

Abstract: An end cover assembly includes a first cover plate, a second cover plate and an anti-rotation device. The first cover plate is configured to close a first housing, the second cover plate is configured to close a second housing, the second cover plate and the first cover plate are arranged opposite to each other in a first direction, and the anti-rotation device is configured to prevent a relative rotation between the first cover plate and the second cover plate. The battery cell includes the end cover assembly.