Abstract: A photovoltaic energy storage system and a control method for the photovoltaic energy storage system are provided. The photovoltaic energy storage system includes an energy storage unit, a photovoltaic array assembly, an inverter and a rapid shutdown switch. The inverter is electrically coupled to the energy storage unit and the photovoltaic array assembly. The rapid shutdown switch is electrically coupled to the inverter, a power grid and a load. A detecting and controlling circuit of the inverter detects at least two of a first voltage, a second voltage and a third voltage, and determines whether the rapid shutdown switch is turned off according to the detected voltages and a reference value. When it is determined that the rapid shutdown switch is turned off, a connection between the inverter and the energy storage unit and a connection between the inverter and the photovoltaic array assembly are cut off.

Abstract: In some embodiments, a computer-implemented method of controlling a semiconductor manufacturing process is provided. A computing system generates predicted metrology values for a current run and a next run by providing metrology forecast inputs to a metrology forecast model. The computing system generates an updated recipe for executing at least one semiconductor manufacturing process step using the predicted metrology values for the current run and the next run.

Abstract: An electronic device includes: a system board; a load, located on the first side of the system board and including a power supply region, the power supply region includes load pins arranged in a plurality of rows and in a plurality of columns; and at least one column of output capacitors, located on the second side of the system board along a third direction; at least one row of the load pins is a first arrangement row, the first arrangement row includes a plurality of load pin groups arranged sequentially along the second direction, each of the load pin groups includes at least two load pins of a same polarity; and two ends of a vertical projection of each column of the output capacitors on the power supply region are located at two sides of a centerline, in the third direction, of at least one first position pin.

Abstract: A power converter module includes a multilayer printed circuit board, a switching device, a controlling device and a capacitor device. The switching device includes two switching circuit combinations. Each of the switching circuit combinations includes two switching circuits connected in parallel. Each of the switching circuits includes a switching unit. The controlling device is configured for outputting a first control signal and a second control signal to control the switching circuits of the first switching circuit combination and the switching circuits of the second switching circuit combination respectively. The first control signal and the second control signal are out of phase with each other. On a direction, the switching units of the first switching circuit combinations and the switching units of the second switching circuit combinations are alternately arranged, each of a plurality of capacitors of the capacitor device is neighboring to the two adjacent switching units.

Abstract: A power supply system for a data center includes an isolated AC-to-DC power conversion unit, an isolated DC-to-DC power conversion unit, an energy storage unit, a first DC bus and a second DC bus. The input terminal of the power supply system is connected with an AC power source. By the isolated DC-to-DC power conversion unit, a first DC voltage from the first DC bus is converted into a second DC voltage. The second DC voltage is provided to the second DC bus. The main power circuit in the isolated DC-to-DC power conversion unit is an LLC circuit or a boost-SRC circuit. The second DC voltage is between 0.5V and 60V. The energy storage unit is electrically connected with the first DC bus. When the isolated AC-to-DC power conversion unit works normally, the energy storage unit is charged to a floating charge state.

Abstract: Disclosed is a power and freshwater supply system for an ocean integrated platform, falling within the field of offshore integrated power generation technologies and methods. A wind farm, a compressed air energy storage system with heat storage, a vortex tube, a temperature difference energy power generation system, and an energy management system are included. Leveraging the complementary characteristics of wind energy and temperature difference energy, a sustainable power and freshwater supply system for an ocean integrated platform is established, providing clean and reliable energy and freshwater resources for facilities such as islands in deep and distant sea, offshore oilfields, and mariculture.

Abstract: A magnetic component and a switch power supply device are disclosed. The magnetic component includes a magnetic core and at least three windings, the magnetic core including at least three winding columns, at least one side columns, a first cover plate and a second cover plate opposite to each other, wherein the at least three winding columns are sequentially arranged in adjacent, the first cover plate and the second cover plate are respectively at upper parts or lower parts of the at least three winding columns and the at least one side column to form a closed magnetic flux loop; the at least three windings are wound on the at least three winding columns, respectively; wherein magnetic flux direction of the middle winding column in adjacent three winding columns is opposite to magnetic fluxes direction of the other two winding columns in adjacent three winding columns.

Abstract: A process comprising at least the steps of: (a) preparing a first mixture comprising at least one non-polar organic solvent, at least one first polar organic solvent and a catalyst, (b) preparing a second mixture comprising at least one of: C7 to C25 carboxylic acids, optionally alkyl benzene sulfonic acids and C2 to C6 carboxylic acids, (c) adding an amount of a calcium base to the first mixture to obtain a third mixture, (d) adding the second mixture of acids of step (b) to the third mixture of step (c) to obtain a fourth mixture; and carbonating the fourth mixture of step (d) by adding therein a given amount of an organic carbonate, wherein in step (c), the added amount of the calcium base allows neutralization of the carboxylic acids in step (d) and forms water as a neutralization product. The process is free of carbon dioxide injection for carbonation.

Abstract: Disclosed is a multi-stack micro-gap discharge type atomization automatic humidifier, relating to the technical field of cold chain logistics equipment for food. The automatic humidifier includes a water tank, one side of the top of the water tank is provided with a mist outlet tube, a power supply module and an atomization device are arranged at the bottom of the water tank, and the power supply module is electrically connected to the atomization device. A multi-stack micro-gap discharge generator is arranged in the mist outlet tube. The multi-stack micro-gap discharge generator can shorten the discharge gap, thus guaranteeing the uniformity of discharge wires and effectively ensuring the space utilization rate. A cold-conducting block in a refrigeration device is embedded into an inner wall surface of a mist outlet round tube, which is used to cool water mist in a mist outlet tube.

Abstract: A PCB pad for a SMT process is combined on a PCB. The PCB pad includes an insulation body and a metal reflow portion disposed on the insulation body. The metal reflow portion is located on the side of the insulation body adjacent to the PCB. The metal reflow portion is not electrically connected with the PCB. Thus, the PCB pad may support electronic components of the PCB and prevent the electronic components from being damaged by an external pressure.

Abstract: Disclosed is a power supply circuit, including: a voltage source, providing an input voltage; a switch unit, a first terminal thereof being electrically coupled to a first terminal of the voltage source; a first capacitor, having an initial voltage, a first terminal thereof being electrically coupled to a second terminal of the switch unit, and a second terminal thereof being electrically coupled to a second terminal of the voltage source; a reference signal generating unit, configured to generate a first reference signal according to a first time, and a difference between a peak value of the input voltage and the initial voltage of the first capacitor; and a control unit, configured to obtain a real-time voltage of the first capacitor, and generate a first control signal for controlling the switch unit according to the first reference signal and the real-time voltage of the first capacitor.

Abstract: A knitting system includes a seamless circular knitting machine. It has a circular set of needles having a particular number of needles (M), in the range of 500 to 2,500 needles, arranged in a circular pattern; and a knit controller to selectively operate each one of the needles on a needle-by-needle basis. The system includes a digital computational design tool, to receive a bitmap image, having a pixel width resolution that is identical to the particular number of needles; and based on analysis of the bitmap image, to generate and to send knitting instructions to the knit controller of the seamless circular knitting machine, based on direct correlation between (I) a particular Nth pixel in a particular Rth row of the bitmap image, and (II) needle activity of a corresponding particular Nth needle when said Nth needle knits the Rth row of a knitted product.