Abstract: This disclosure provides a converter and an electronic device that incorporates the converter. The converter includes: an input terminal, a first inverter circuit, a first transformer, a first rectifier circuit, and an output terminal. The first transformer includes a first primary-side winding and a first secondary-side winding. The input terminal is connected to a first terminal of the first inverter circuit, a second terminal of the first inverter circuit is connected to the first primary-side winding, and the first rectifier circuit is connected between the first secondary-side winding and the output terminal. A third terminal of the first inverter circuit is connected to the output terminal; or a third terminal of the first inverter circuit is connected to the first secondary-side winding. In this disclosure, a loss of the converter can be reduced.

Abstract: A preparation method for a functional material for extracting lithium from an aluminum salt includes the following steps: step 1, preparation of an aluminum salt functional material precursor slurry: mixing polyaluminum, a lithium source and water in proportion, adding an additive, performing ultrasonic stirring to obtain a mixed salt solution, adding an alkali liquor or a basic salt solution into the mixed salt solution at a certain flow rate, adjusting the pH value, and then performing constant-temperature stirring reaction to obtain a lithium-intercalated aluminum salt functional precursor slurry; and step 2, preparing a functional material for extracting lithium from an aluminum salt, namely performing solid-liquid separation, washing and drying on the precursor slurry obtained in the step 1 to obtain the functional material for extracting lithium from an aluminum salt. Cheap polyaluminum is used as an aluminum source, and the water solubility is good.

Abstract: An electric valve. The electric valve is provided with a channel, part of the channel is located between a connecting seat and a fixed gear ring, part of the channel is located in the connecting seat, and by means of the channel, a sleeve cavity and a valve body cavity are in communication with each other.

Abstract: Disclosed are an identifying method and an identifying system for a centrifuge rotor. The identifying method for a centrifuge rotor is based on a centrifuge rotor identifying system which includes a code disk with a plurality of pairs of magnetic poles, a Hall sensor and a controlling device. The method includes the following steps: according to a predetermined code rule, detecting the duration of each level signal generated from the Hall sensor; according to the total number of windows of the code disk and the duration of each level signal, determining the preliminary code; according to the predetermined code rule, determining the code starter; and based on the code starter, ordering the preliminary code to the rotor final code.

Abstract: A converter circuit includes a capacitor module and a balance module. The capacitor module includes at least a first capacitor and a second capacitor. The balance module includes at least a first resonant circuit. The first resonant circuit includes at least two switch groups connected in parallel and a first resonant cavity bridged between the two switch groups. The first capacitor and the second capacitor are connected in series. The first resonant circuit is separately bridged between two ends of the first capacitor and between two ends of the second capacitor. The balance module controls each switch in the first resonant circuit, so that each switch works with the first resonant cavity to affect a current, to balance a voltage between the two ends of the first capacitor and a voltage between the two ends of the second capacitor.

Abstract: Disclosed are a method and a device for regulating a temperature of an incubator, an inner surface of the incubator being arranged with heating wires. The method includes: in case where a door body of the incubator is opened and then reclosed, obtaining a set temperature of the incubator; according to at least one of a heating power corresponding to the set temperature or and a temperature range corresponding to the set temperature, determining a target heating power; and controlling the heating wires to operate at the target heating power to adjust the internal temperature of the incubator to the set temperature.

Abstract: The present disclosure relates to a clamping device configured to clamp a substrate. The clamping device includes a clamping plate and a flattening mechanism. The flattening mechanism includes at least one adjusting member configured to operably act on the clamping plate to apply a force to the clamping plate to flatten the clamping plate.

Abstract: An electric valve, includes a transmission mechanism, a valve core, and a valve body assembly. The valve body assembly is provided with a valve body cavity, the valve core is located in the valve body cavity, and the transmission mechanism is transmissionally connected to the valve core. The electric valve further comprises a connecting seat, which is fixedly connected to the valve body assembly, and the transmission mechanism comprises an output shaft; the electric valve further comprises a limiting frame, which is located on the radial outer circumference of the output shaft and is fixedly connected to the output shaft, the limiting frame being located on a side of the connecting seat relatively close to the valve core, and the limiting frame and the connecting seat being arranged opposite to each other and having a preset gap.

Abstract: An electric valve. The electric valve is provided with a channel, part of the channel is located between a connecting seat and a fixed gear ring, part of the channel is located in the connecting seat, and by means of the channel, a sleeve cavity and a valve body cavity are in communication with each other.

Abstract: Disclosed are a method and a device for power allocation in a carbon dioxide incubator, and a carbon dioxide incubator. The method for power allocation in a carbon dioxide incubator provided with heating wires on multiple inner surfaces of the carbon dioxide incubator includes: according to a current temperature and a target temperature of a box body of the carbon dioxide incubator, determining a power index; in case where the current temperature is less than or equal to the target temperature, according to the power index, determining a heating strategy for each inner surface of the carbon dioxide incubator by looking up a table; and according to the heating strategy for each inner surface, adjusting at least one or more of the power and/or the start-stop time of the heating wires on each inner surface.

Abstract: Disclosed are an identifying method and an identifying system for a centrifuge rotor. The identifying method for a centrifuge rotor is based on a centrifuge rotor identifying system which includes a code disk with a plurality of pairs of magnetic poles, a Hall sensor and a controlling device. The method includes the following steps: according to a predetermined code rule, detecting the duration of each level signal generated from the Hall sensor; according to the total number of windows of the code disk and the duration of each level signal, determining the preliminary code; according to the predetermined code rule, determining the code starter; and based on the code starter, ordering the preliminary code to the rotor final code.

Abstract: A resonant switched capacitor converter includes a control system, a first capacitor, a plurality of resonant systems, and a plurality of second capacitors coupled in series. The first capacitor is coupled in series to the second capacitors. One resonant system corresponds to one second capacitor. Each of the resonant systems includes a first switch system, a resonant circuit, and a second switch system. The control system is coupled to the resonant systems and configured to control, based on a target output voltage gain, switches in the first switch system and the second switch system in each resonant system to be turned on or turned off, to enable the resonant switched capacitor converter to obtain an output voltage gain equal to the target output voltage gain.

Abstract: This application discloses a method of displaying information in a program interface of an application performed by a computer device. The method includes: displaying a virtual keyboard control and an extension bar control in the program interface; in response to an input operation in the virtual keyboard control, displaying at least one character string in the extension bar control, the at least one character string being determined according to the input operation in the virtual keyboard control; and in response to a select operation on a target string among the at least one character string in the extension bar control, displaying a function interface of applying a target function to the target string. This embodiment allows a user to quickly switch between function interfaces when using an application, thereby reducing operation steps of the user and improving human-computer interaction efficiency.

Abstract: The present disclosure refers to an alternating current/direct current (AC/DC) converter for an on board charger (OBC). The AC/DC converter includes a three-phase-input comprising three inputs, a single-stage dual-active bridge (DAB) circuit, and an auxiliary circuit. The auxiliary circuit includes two switching means and an energy storage means, the auxiliary circuit also includes at least two branches, wherein each of the at least two branches include one of the switching means. At least one branch of the at least two branches is connected to a single-phase AC input of the three inputs, and another branch of the at least two branches is connected to an input of the three inputs which is not a single-phase AC input, and the another branch comprises the energy storage means.

Abstract: A resonant switched capacitor direct current/direct current converter includes N resonant switched capacitor groups, M capacitors, and at least one LC series circuit, where N is an integer greater than or equal to 2, and M is an integer less than or equal to N. Each resonant switched capacitor group includes switches and a resonant circuit. The resonant circuit includes a resonant inductor and a resonant capacitor. The LC series circuit, namely, a circuit including an inductor and a capacitor that are connected in series, is connected between any two resonant switched capacitor groups. At the moment when the switch is turned off, the resonant inductor is not sufficient to implement complete discharging of a junction capacitor of the switch. The inductor is added, to implement complete discharging of the junction capacitor of the switch, that is, to remove a current, so that the switch implements soft switching.

Abstract: An electric ball valve, comprising: a shaft portion, a magnetic ring, and a Hall sensor, the Hall sensor being in electrical and signal connection with a circuit board, the shaft portion being connected to an output shaft and capable of rotating along with the output shaft, the magnetic ring being sleeved on the radial periphery of the shaft portion, and the magnetic ring being capable of rotating along with the shaft portion; and a cushioning portion, the cushioning portion directly or indirectly abutting against an end of the shaft portion. Also provided is a method for manufacturing an electric valve. The present electric ball valve is provided with the cushioning portion at the end of the shaft portion, thereby facilitating reducing downward plays of the magnetic ring and the shaft portion in the axial direction during rotation along with the output shaft.

Abstract: A switched-capacitor DC/DC converter, a switching-mode power supply, and a control method. The switched-capacitor DC/DC converter includes a controllable switch and n switched capacitor modules, where the n switched capacitor modules are connected in series to form a voltage conversion branch circuit, and the voltage conversion branch circuit is connected to the controllable switch in series. n is an integer greater than or equal to 1. When the DC/DC converter implements different voltage conversion ratios, n may be different values. The converter can implement voltage step-down or voltage step-up, and does not include a transformer inside.

Abstract: A DC/DC converter and a voltage gain switching method and system. A first resonance unit of the DC/DC converter includes a first terminal and a second terminal connected to a second capacitor unit, and a third terminal and a fourth terminal connected to a first capacitor unit. A second resonance unit of the DC/DC converter includes a first terminal connected to a second terminal of the second capacitor unit, and a second terminal of the second resonance unit connected to a first input/output terminal of the DC/DC converter, a third terminal connected to the ground terminal of the DC/DC converter, and a fourth terminal connected to a first voltage gain changeover switch. The DC/DC converter can improve voltage gain switching efficiency.

Abstract: A conversion circuit includes a capacitor module, a balancing module, and a startup module. The capacitor module includes at least a first capacitor and a second capacitor. The balancing module includes at least a first resonant circuit. The startup module includes a direct current-direct current converter and a target capacitor. The first resonant circuit includes at least two groups of switches and a first resonant cavity. The first capacitor is connected in series to the second capacitor, and connected in parallel to the target capacitor. The first resonant circuit is separately connected to both ends of the first capacitor and the second capacitor by using the startup module. The balancing module balances voltages at both ends of the first capacitor and the second capacitor by controlling the switches in the first resonant circuit. The startup module is configured to start the balancing module and the capacitor module.