Abstract: Substantially equal mutual inductances between a primary coil and respective secondary windings of a secondary coil of a transformer with an integrated differential Wilkinson power divider or combiner help to ensure balanced outputs for the transformer. The primary coil and the secondary coil are substantially symmetric to provide a high coupling between the coils, and the secondary windings of the secondary coil are substantially symmetric to help provide the substantially equal mutual inductances. The secondary windings of the secondary coil cross over each other an equal number of times to further ensure balanced outputs for the transformer.

Abstract: Various embodiments include a printed circuit board cover assembly comprising a cover layer that attaches to at least a portion of a printed circuit board layer, and a retention hook that extends from the cover layer and physically interfaces with at least a portion of a connection port. In various embodiments, a printed circuit board package comprises a printed circuit board layer, a cover layer that attaches to at least a portion of the printed circuit board layer, and a retention hook extending from the cover layer, the retention hook configured to physically interface with at least a portion of a connection port.

Abstract: The disclosure relates to a power amplifier apparatus. A power amplifier apparatus includes a power amplifier circuit configured to receive an RF input signal at an RF input and to generate an RF output signal at an RF output; an adaptive bias circuit comprising a biasing transistor, the biasing transistor having a common terminal coupled to the RF input and to a tail current source, and the biasing transistor further having an input terminal coupled to a DC bias voltage source; and a rectification booster comprising a current mirror device, wherein a first side of the current mirror device is coupled to an output terminal of the biasing transistor and wherein a second side of the current mirror device is coupled to the RF input.

Abstract: Described herein are new solid oxide fuel cell interconnects and methods for making same that may comprise a novel bilayer construct on an anode substrate to provide a dense microstructure, low area specific resistance, and negligible oxygen permeability to form a bilayer ceramic interconnect that is a strong candidate for next-generation, durable, and low-cost tubular solid oxide fuel cells.

Abstract: The present invention discloses a method and a system for controlling an overvoltage in a photovoltaic court based on a floating neutral voltage, including: acquiring, by a controller, a voltage U of the photovoltaic court and a voltage U0 of a transformer neutral point; comparing acquired voltage data with a set threshold; generating control instructions of offsetting and compensation according to a comparison result; and receiving the instructions by a neutral voltage regulator, and controlling a voltage. The present invention introduces a floating neutral line between a photovoltaic power supply and a grid-connected transformer neutral point, and arranges a neutral voltage regulator on the floating neutral line. By adjusting its direction and size, the neutral voltage regulator can adapt to the voltage problem of the court in different states. Meanwhile, by adjusting the voltage on the grid-connected transformer neutral point side, the voltage of the grid-connected transformer neutral point is zero.

Abstract: A bias circuit configured to provide a differential voltage and a common-mode voltage. The bias circuit includes a differential circuit and a common-mode circuit. The differential circuit includes a first differential input resistor, a first differential output resistor, a second differential output resistor, and a second differential input resistor connected together in series, in that order, between first and second differential input terminals. A first differential output terminal is connected to a node between the first differential input resistor and the first differential output resistor; and a second differential output terminal is connected to a node between the second differential output resistor and the second differential input resistor.

Abstract: Disclosed are a tab welding structure and a battery. The tab welding structure includes a tab and a to-be-welded part, where the to-be-welded part is welded on the tab to form a connecting portion, a plurality of first welding mark structures that are concave in a thickness direction of the connecting portion are formed on the connecting portion, each of the plurality of first welding mark structures includes a first welding surface and a first surrounding wall that are connected to each other, and the first surrounding wall is an arc surface.

Abstract: Wilkinson power dividers (or combiners) include a first positive output terminal and a second positive output terminal connected to a positive trace in a first plane and a first negative output terminal and a second negative output terminal connected to a negative trace in a second plane spaced apart from the first plane, e.g., in different circuit layers, with minimal overlap and crossings of positive and negative portions of the traces near the midpoints of the traces. The positive and negative traces are substantially symmetric to one another, and cascading various ones of the power dividers disclosed herein enables implementation of N-way Wilkinson power dividers.

Abstract: A starch blend includes 40-85% (w/w) of an unmodified amylose-containing starch and 15-60% (w/w) of a non-chemically inhibited starch. The starch blend, upon cooking in water has a high viscosity after one or more, two or more, three or more, four or more, or five or more freeze-thaw cycles. Such starch blend is useful in a variety of food and beverage compositions, particularly frozen sauces and gravies.

Abstract: Disclosed is an antibody capable of binding to the interleukin 4 (IL-4) receptor (IL-4). Also disclosed are a nucleic acid sequence encoding the antibody, a vector including the nucleic acid sequence, and a host cell transformed or transfected with the vector. Provided are a method for producing the antibody, a medical use of the antibody, and a kit including the antibody.

Abstract: Example graphics processing subsystems and computing devices that include the graphics processing subsystem(s) are described. In one example, the graphics processing subsystem may comprise a first fan, a second fan and a printed circuit board (PCB) on which a processor is disposed. The first fan may be associated with a first axis about which the first fan is rotatable. The second fan may be associated with a second axis about which the second fan is rotatable. The PCB may be shaped and positioned such that (a) a first airflow path for cooling the processor traverses through the first fan and a first opening below the first fan, and (b) a second airflow path for cooling the processor traverses through the second fan and a second opening below the second fan. The first airflow path and the second airflow path are substantially linear relative to the respective first axis and second axis.

Abstract: A laminated battery cell and a preparation device and method thereof are provided. The laminated battery cell is prepared by folding a battery cell structure. The battery cell structure includes one or more first electrode sheets, one or more separators and one or more second electrode sheets. The one or more first electrode sheets are located on and connected to a side of the one or more separators by a normal temperature and pressure conductive adhesive. A plurality of second electrode sheets are alternately arranged on and connected to a side of the one or more separators facing away from the one or more first electrode sheets by a normal temperature and pressure conductive adhesive. The normal temperature and pressure conductive adhesive has good adhesion and conductivity, improves the battery liquid absorption effect and interface conditions, and improves battery performance.

Abstract: The present application provides a battery power supply device and a battery power supply system. The battery power supply device includes a control module, a DC/DC conversion module and a battery. The DC/DC conversion module includes N DC/DC converters connected in series or in parallel. When the battery power is constant, more output current can be obtained when the N DC/DC converters are in parallel, and more output voltage can be obtained when the N DC/DC converters are in series. Embodiments enable a battery power supply device or system to meet voltage requirements of different loads and improve applicability of a battery.

Abstract: An electronic component includes a transmission structure and a shield structure below the transmission structure. The transmission structure includes a central trace and a pair of lateral traces. The shield structure includes multiple switchable shield elements that extend below the central trace. At least one of the shield elements is selectively electrically connectable to a lateral shield trace, causing the component to assume multiple values of characteristic impedance and phase shift. An associated device and a method of operation are further disclosed.

Abstract: A splitter/combiner having a first port, a second port, and a third port includes a first transmission line coupled between the first port and the second port, a second transmission line coupled between the first port and the third port, a resistor coupled between the second port and the third port, and first and second capacitors each having a first terminal and a second terminal, the first terminal of the first capacitor coupled to the second port, the first terminal of the second capacitor coupled to the third port, the second terminal of each of the first and second capacitors coupled to a common node. At least one of the first capacitor, second capacitor, first transmission line, and second transmission line is adjustable during operation for varying the electrical properties of the splitter/combiner.

Abstract: A power module and an auxiliary supporting device adapted thereto are provided. The auxiliary supporting device is used to maintain a first circuit board in a vertical state on a second circuit board. The auxiliary supporting device includes a first plate and a second plate. The first plate is parallel to and fixed to the first circuit board. The second plate is extended from the first plate in a direction away from the first circuit board. A bottom edge of the second plate is disposed on a surface of the second circuit board facing the first circuit board. The auxiliary supporting device is universally suitable for different combinations between the first plate and the second plate without the need of customized tool.

Abstract: The disclosure relates to a current converter circuit.

Abstract: An anti-propylene mask and method for preparation thereof is provided; the anti-propylene mask includes a fiber cloth contact layer, an antistatic non-woven fabric layer and a fullerene/nano titanium dioxide spunbond layer which are arranged in sequence; the fullerene/nano titanium dioxide spunbond layer is made by spun-bonding the modified resin material into a fiber web; the raw materials of modified resin materials include matrix resin, carboxylated fullerene derivatives, nano titanium dioxide, a lubricant, and a coupling agent; the modified resin material is prepared by following method: the carboxylated fullerene derivative is mixed and reacted with the nano titanium dioxide to prepare the carboxylated fullerene derivative-modified nano titanium dioxide, which is then blended and extruded with the remaining components in the raw material, and thus prepared. The mask can prevent propylene from entering the human body through the human respiratory organs and has a good anti-propylene effect.

Abstract: An image sensor includes: a pixel array, the pixel array including a plurality of pixels, and each pixel including a plurality of sub-pixels, wherein the sub-pixels in a same pixel share a same floating diffusion region (FD); each pixel including a pixel circuit provided with a plurality of output ends, and the pixel circuit being used for transferring charges generated by at least one photoelectric conversion element in a same pixel to the FD for accumulation, and selecting at least one output end to output analog signals corresponding to the charges in the FD; and a plurality of first conversion circuits, each first conversion circuits being used for performing analog-to-digital conversion on each analog signal outputted by a same pixel circuit, and reading a converted digital signal together with the pixel circuit on the basis of a full-resolution output mode or a first-stage combined output mode.

Abstract: Methods, systems, and computer programs are presented for immobilizing a vehicle based on the detection of threats, such as tampering or jamming. The method includes configuring a vehicle for tamper and jamming detection, installing a communication device and an engine immobilizer in the vehicle, and providing a user interface for configuring the communication device to activate the engine immobilizer. The method further includes parallel paths for tampering detection, which immobilizes the vehicle and notifies the server upon detection, and for jamming detection, which similarly immobilizes the vehicle and notifies the server, including the vehicle's GPS position. Optionally, image information from the vehicle may be included in the notification or to trigger immobilization upon detecting multiple occupants, indicating a potential carjacking. This solution enables fleet managers to react to thefts and maximize vehicle recovery rates quickly.