37results about How to "High voltage" patented technology

This application provides a perovskite light-emitting module and its fabrication method, belonging to the field of semiconductor optoelectronic device manufacturing technology. The perovskite light-emitting module includes: a substrate, and multiple perovskite light-emitting units located on the substrate; wherein, along the direction away from the substrate, each perovskite light-emitting unit sequentially includes an anode, a hole transport layer, a perovskite layer, an electron transport layer, and a cathode; the multiple perovskite light-emitting units are arranged in series, and in two adjacent perovskite light-emitting units, the cathode of the preceding perovskite light-emitting unit is electrically connected in series with the anode of the following perovskite light-emitting unit.

The invention relates to a signal control circuit based on a transverse tandem photoelectric detection unit structure and a control method, and belongs to the field of photoelectric detection and control. The circuit comprises a transverse tandem detection unit structure and a post-stage signal processing circuit, wherein the post-stage signal processing circuit comprises a plurality of resistor units, a bipolar transistor and an MOS (Metal Oxide Semiconductor) tube; according to the method, an optical signal is converted into an electric signal through a transverse tandem type detection unit structure, and charge release and voltage signal output processing are carried out through a post-stage signal processing circuit. When light enters the transverse tandem type detection unit structure, the output tube is switched on; when no photo-generated current exists, the output tube is switched off; and the output tube can output a voltage control signal meeting the amplitude requirement when being switched on or switched off so as to control the working state of a rear-end circuit. By combining the photoelectric detection unit and the signal processing circuit, monolithic integration and process fusion of the silicon-on-insulator process are realized, the parasitic effect between elements can be effectively reduced, and the interconnection scheme of discrete devices is upgraded.

A disconnector to reduce considerably high voltage and high frequency current generated during the service no-load opening and closing, the disconnector comprising a first main contact (10), a second main contact (20), a sliding contact (50) and an arcing horn (60) having a length (70), the disconnector having a connected state, an intermediate state and a disconnected state, wherein in the connected state a first electrical contact is established between the first main contact and the second main contact, in the intermediate state the first electrical contact is interrupted while a second electrical contact exists between the sliding contact and a contact position (160) on the length of the arcing horn, and in the disconnected state the first electrical contact and the second electrical contact are interrupted, wherein at least a part of the length of the arcing horn comprises an electrical filter (180) configured to provide a resistance and an inductance to an electrical current.

This invention discloses a multi-branch battery pack high-voltage system and its control method. The multi-branch battery pack high-voltage system includes: multiple battery pack branches, a charging control module, and a discharging control module. Each battery pack branch includes a battery pack, a battery drain interrupter (BDU), and a bidirectional DC-DC converter module. The battery pack is connected to the input terminal of the BDU. The BDU has a main circuit and an equalization circuit. The main circuit controls the on / off of the main power of the battery pack branch it belongs to. The BDUs of each battery pack branch are connected to each other through the equalization circuit for active equalization between branches. The output terminal of the BDU is connected to the input terminal of the bidirectional DC-DC converter module, which controls the charging and discharging current of its respective battery pack branch. The output terminals of all bidirectional DC-DC converter modules are connected in parallel and then connected to the charging control module and the discharging control module. This invention can solve the circulating current problem between battery packs and improve the stability of the multi-branch battery pack high-voltage system.

The utility model discloses a drive control circuit and auxiliary power supply, wherein including voltage comparison circuit and switching circuit, voltage comparison circuit exports the pilot signal when the voltage of power supply end of its power supply chip is no less than the preset drive voltage of drive switch tube, to make switching circuit make the circuit between the drive signal output end of power supply chip and the control end of drive switch tube conduct, and then make the drive signal of power supply chip output to drive switch tube control. Visible, the circuit between the drive signal output end of power supply chip and the control end of drive switch tube only conducts when the voltage of power supply end of power supply chip is no less than the preset drive voltage of drive switch tube, thereby guaranteeing that the voltage of drive signal of power supply chip to drive switch tube control is enough big, avoids drive switch tube and overheats damage because the voltage of drive signal is small and can not completely conduct.

This invention discloses a voltage regulator circuit based on current feedback; it includes a sampling module, an adjustment module, and a feedback control module, specifically including high-voltage MOSFETs HV_PM1, HV_PM2, HV_PM3, and HV_NM1, constant-voltage MOSFETs NM1, NM2, NM3, and NM4, a Zener diode Z1, resistors R0, R1, and R3, and bias currents I1, I2, and I3. This invention operates when the input voltage is lower than the reverse breakdown voltage V of the Zener diode Z1. Z1 When the input voltage is high, the output voltage equals the input voltage, resulting in a small voltage drop. At high input voltages, the current flowing through the Zener diode Z1 is sampled, and the gate-source voltage difference of the MOSFET is adjusted via a feedback loop. This changes the on-resistance of the MOSFET, stabilizing the output voltage VOUT at the reverse breakdown voltage V0 of the Zener diode Z1. Z1 Approximately 5.5V.

This utility model discloses a fixing device for battery processing, including a base. A left side plate and a right side plate are arranged in parallel on the upper end of the base. A second working support plate is fixedly connected between the left side plate and the right side plate. A first working support plate is provided above the second working support plate. An installation groove is provided between the first working support plate and the right side plate. A welding nozzle, movably connected to the left side plate and the right side plate, is provided above the first working support plate. A clamping plate, movably connected to the left side plate, is provided above the second working support plate. By providing a support plate for welding, this application allows two batteries to be placed on the support plate simultaneously for welding during the welding process. It also allows two batteries to be connected in series or parallel to form a battery pack. Series welding increases the voltage of the battery pack, while parallel welding increases its capacity.

This invention discloses a computer chassis movement alarm device based on information security, comprising a chassis body, a bottom cover fixedly connected to the lower side wall of the chassis body, a battery box installed on the inner top wall of the chassis body containing a battery, a buzzer installed on the inner wall of the chassis body, and multiple speaker holes on both side walls of the chassis body. A movement alarm mechanism is located inside the bottom cover, comprising a ceramic cylinder mounted on the inner top wall of the bottom cover, with a resistance wire wound around its outer wall. A crossbar connects the two inner walls of the bottom cover. This invention provides a double-layered alarm effect by automatically emitting an alarm sound when the chassis is moved or lifted. Furthermore, the alarm sound increases in volume as the movement or lifting increases, thereby improving the alarm effect of the computer chassis and preventing serious damage.

The application provides a positive electrode active material, a preparation method thereof, a positive electrode sheet and a secondary battery. The positive electrode active material comprises a compound with a chemical formula of formula 1: [Na x □ y ]Ni a Fe b Mn c A m Q n O β formula 1, wherein 0.6<=x<1.0, 0.06<=y<=0.4, 0<=a<=0.5, 0<=b<=0.5, 0.35<=c<=0.7, 0<=m<=0.1, 0<=n<=0.1, 1.96<=beta<=2.02, and a<c; □ is a Na vacancy, the Na vacancy comprises an intrinsic Na vacancy and a Na vacancy introduced by the A; the A comprises at least one of metal ions with full or empty d orbitals, and the Q comprises at least one of metal cations with +1 valence or +2 valence. In the application, the A enters the TM layer to replace part of the Mn 4+ , so that the TM n+ is in an electron-deficient state, and spontaneous oxidation reaction is inhibited.

The embodiment of the present application provides a kind of line voltage regulating equipment.The equipment includes: control device, and multiple voltage regulating devices and multiple monitoring devices arranged in different line sections of distribution line;Specifically, each monitoring device is used to collect the real-time line data of the line section, and is sent to control device;Control device includes data analysis module, adjustment instruction generation module and first communication module;Each voltage regulating device is used to adjust the line parameter of the line section according to the received adjustment instruction, to realize the voltage optimization of line section.Through this line voltage regulating equipment, the voltage stability of each section of line can be realized, while local adjustment and network optimization are considered, and the flexibility and reliability of distribution network are improved.

The utility model discloses a rectifying circuit and electronic equipment, and belongs to the technical field of wireless energy transmission. The rectifying circuit comprises a broadband matching network, a coupling network, a rectifying network and a direct current filtering network; the broadband matching network is connected with a signal source and is used for performing impedance matching with the signal source and receiving a radio frequency signal provided by the signal source; the coupling network is connected with the broadband matching network and the rectification network and is used for increasing the voltage of the radio frequency signal output by the broadband matching network and outputting the radio frequency signal with the increased voltage to the rectification network; the rectification network comprises a Schottky diode, is connected with the direct current filter network and is used for converting the received radio frequency signal into a direct current signal through the Schottky diode and outputting the direct current signal to the direct current filter network; and the direct current filter network is used for filtering the signal output by the rectification network to obtain and output the direct current signal.

A semiconductor device includes a substrate, a first gallium nitride type high electron mobility transistor, a second gallium nitride type high electron mobility transistor, a first inner connector, and a second inner connector. The substrate includes a first type doped semiconductor region and a second type doped semiconductor region. The first gallium nitride type high electron mobility transistor covers a first region on the first type doped semiconductor region and the second type doped semiconductor region. The second gallium nitride type high electron mobility transistor covers a second region on the first type doped semiconductor region and the second type doped semiconductor region. The first region and the second region are separated from each other. The first inner connector connects the first region, and a width of the first inner connector is greater than a source-drain pitch of the first gallium nitride type high electron mobility transistor. The second inner connector connects the second region, and a width of the second inner connector is greater than a source-drain pitch of the second gallium nitride type high electron mobility transistor.

The utility model relates to a kind of middle-high voltage fast electronic switch unit and its control system, belong to power electronics field.Electronic switch unit includes multiple groups of thyristor anti-parallel component with blocking capacitor voltage-sharing circuit in series, and thyristor anti-parallel component is connected in series by radiator;Resistance-capacitance voltage-sharing circuit is connected in parallel in each group of thyristor anti-parallel component.Electronic switch unit is controlled by the system of overvoltage protector, temperature detection device, current detection device, PECS controller and thyristor trigger device.Electronic switch unit is connected with overvoltage protector, and thyristor trigger device is connected with PECS controller and electronic switch unit respectively;Temperature detection device and current detection device are connected with PECS controller respectively.The utility model can quickly respond switch instruction, realizes high-low voltage electrical isolation, and guarantees equipment and personnel safety.

The utility model belongs to sensing equipment technical field relates to a pressure sensing device, including shell and cooperation setting on the shell upper cover, the shell and upper cover form the accommodation space between, be provided piezoelectric wafer in the accommodation space, piezoelectric wafer and shell fixedly bond between, and piezoelectric wafer and shell still have the lug between connection, the shell has the recess portion with piezoelectric wafer coaxial setting in, and the convex part correspondingly piezoelectric wafer circumferential setting, piezoelectric wafer fixedly bond on the convex part, the lug one side and piezoelectric wafer bond, the other side and the convex rib on the shell corresponding connection. The utility model can improve the voltage of knock feedback, and its feedback highest voltage is about 10V, has simple structure, and it is convenient to assemble, stable performance, effect is improved obviously and so on advantage.

This invention discloses a self-built-up voltage circuit for an aviation low-voltage DC generator controller, including a buck circuit, a switching circuit, and a comparator circuit. When the DC generator begins self-built-up voltage, the residual magnetism voltage is insufficient to power the controller, the buck circuit has no +5V output, the normally closed contact of relay U4 operates, and the residual magnetism voltage is directly supplied to the excitation winding, causing the motor terminal voltage to begin to rise. When the motor terminal voltage rises to the operating voltage of the buck circuit, it is still less than the window voltage of the comparator circuit, so the comparator circuit outputs a low level, and the buck circuit and the switching circuit begin to operate. The use of an open-collector output comparator and pull-up resistors ensures that the motor terminal voltage rises steadily during the self-built-up process, avoiding controller failure caused by excessive voltage overshoot time, and improving the power supply quality and efficiency of the low-voltage DC power supply system.

The invention provides a battery cell module, a battery device and electric equipment. The battery cell module is used for the battery device and comprises a plurality of battery cell assemblies, each battery cell assembly comprises a plurality of battery cells arranged in the first direction, the two opposite ends of each battery cell in the second direction are each provided with a positive electrode and a negative electrode, and the positive electrodes and the negative electrodes, located at the same end, of the adjacent battery cells are electrically connected in sequence; the positive electrode of one of the two battery cells positioned at the end part of the first direction is a positive electrode lead-out electrode, and the negative electrode of the other battery cell is a negative electrode lead-out electrode; and the two adjacent battery cell assemblies are electrically connected through the positive electrode lead-out and the negative electrode lead-out, so that the problem that the charging time of the electric equipment is relatively long and the charging efficiency of the electric equipment is relatively low due to the fact that the battery cell module cannot realize large-current quick charging can be solved.

The invention discloses an active matrix organic light-emitting display, which comprises a laminated organic light-emitting device, the laminated organic light-emitting device comprises at least two light-emitting units, and at least one common P-type charge generation layer is arranged between two adjacent light-emitting units; the common P-type charge generation layer includes a first organic material and a second organic material satisfying a specific energy level relationship, and the common P-type charge generation layer has a specific high doping ratio and a specific low unit doping lateral conductivity. The device has the comprehensive advantages of low voltage and high efficiency by optimizing and adjusting the energy level difference, the doping proportion and the unit doping transverse conductivity of the materials in the common P-type charge generation layer, and meanwhile, as the common P-type charge generation layer has the low unit doping transverse conductivity, it is ensured that the hole transverse migration amount is at a low level, and the performance of the device is improved. The transverse crosstalk between the pixels in the display can be obviously inhibited, and the method has obvious advantages in commercial application.

The application discloses a preparation method of a lithium nickel cobalt manganese oxide ternary positive electrode material and belongs to the technical field of lithium ion batteries. The lithium nickel cobalt manganese oxide ternary positive electrode material is prepared by the following steps: synthesizing Y-containing nickel cobalt manganese hydroxide by adopting a co-precipitation method, then doping N and synthesizing the lithium nickel cobalt manganese oxide material by adopting a high-temperature solidification sintering method, and then coating N-containing yttrium titanate (N-YTO) on the surface of the lithium nickel cobalt manganese oxide material by adopting a sol-gel method. The preparation process is simple and easy to operate, Y and N are uniformly doped in the bulk phase, the N-YTO coating layer is uniformly distributed on the surface of the material, the N-YTO coating layer can effectively inhibit the occurrence of internal micro-cracks of particles, electrolyte corrosion and side reactions, can improve the diffusion efficiency of lithium ions and the structural stability, and can further improve the voltage platform, the cycle life, the rate performance and the thermal safety of the lithium nickel cobalt manganese oxide ternary positive electrode material, and the lithium nickel cobalt manganese oxide ternary positive electrode material is suitable for large-scale production.

The application discloses a process chamber, an upper electrode device thereof and a semiconductor process equipment. The upper electrode device comprises a radio frequency coil (11) and an adjustable capacitor (12). The radio frequency coil (11) is used for being wound outside a shielding cylinder (70) of the process chamber, and the shielding cylinder (70) is used for being sleeved outside a plasma generating cavity (20) of the process chamber. The adjustable capacitor (12) is connected in series with the radio frequency coil (11), and the adjustable capacitor (12) is used for being adjusted to different capacitance values in an ignition stage and a reaction stage of the process chamber. The above scheme can solve the problems of ignition difficulty and plasma bombardment on a dielectric window, and can also relieve the problem of abnormal discharge caused by the adoption of a lifting structure of the radio frequency coil.

The application relates to a power-taking power supply circuit of an IGCT converter valve, which comprises an input support capacitor, a switching resistance circuit, a high-voltage DC / DC converter, a current loop control circuit and an IGCT driving unit, the input support capacitor, the switching resistance circuit, the high-voltage DC / DC converter, the current loop control circuit and the IGCT driving unit are connected in series in sequence, one end of the input support capacitor is adapted to be electrically connected to the positive electrode of the power-taking power supply and the other end is grounded, the switching resistance circuit comprises an external switching resistance and a controllable circuit, one end of the external switching resistance is connected to the positive electrode of the input support capacitor and the other end is grounded, the drain of a field effect transistor is connected to the positive electrode of the input support capacitor through an adjusting resistance, the source of the field effect transistor is grounded, the gate of the field effect transistor is adapted to receive a control pulse signal, the anode of a reverse diode is connected to the source of the field effect transistor and the cathode is connected to the drain of the field effect transistor, the field effect transistor of the controllable circuit is turned on and off, and the input side equivalent resistance is adjusted in real time.

The application provides a lithium battery charging method, system, device and storage medium. The method comprises: when a low-temperature charging condition is met, entering a low-temperature charging process; the low-temperature charging process comprises: charging the lithium battery at a preset rate; if a difference between the voltage of the lithium battery and a target voltage is greater than or equal to a first voltage difference, when the voltage of the lithium battery rises by the first voltage difference, reducing the current charging voltage by a second voltage difference and then charging the lithium battery at a constant voltage, and when the lithium precipitation elimination condition meets the switching condition, returning to the step of charging the lithium battery at the preset rate; the second voltage difference is less than the first voltage difference; if the difference between the voltage of the lithium battery and the target voltage is less than the first voltage difference, when the voltage of the lithium battery rises to the target voltage, maintaining the current charging voltage to charge the lithium battery at a constant voltage, and stopping charging when the charging current of the lithium battery is less than a first target current. The method greatly improves the low-temperature charging efficiency.

The invention relates to active electrode materials and to methods for the manufacture of active electrode materials. Such materials are of interest as active electrode materials in lithium-ion or sodium-ion batteries. The invention provides an active electrode material expressed by the general formula M1aM22-aM3bNb34-bO87-c-dQd.

The application provides a water-based secondary ion battery. The water-based secondary ion battery comprises a positive electrode material; the positive electrode material at least comprises a positive electrode active material, the positive electrode active material comprises a first active material and a carrier, the first active material is selected from an alkali metal halide or an alkali metal sulfite, an alkaline earth metal halide or an alkaline earth metal sulfite, an aluminum halide or an aluminum sulfite, or a zinc halide or a zinc sulfite; the carrier has a low-dimensional structure; and the carrier is selected from a template and / or a second active material. The first active material of the positive electrode material has a lower molecular weight and a higher redox potential, so that the water-based secondary ion battery has a higher specific capacity and voltage. Meanwhile, the secondary ion battery adopts a water-based electrolyte, has high safety, and has a wide application prospect.

The application discloses a semiconductor process equipment, including a semiconductor chamber, an electromagnetic coil, a support component and an insulating capacitance adjusting piece, wherein: the semiconductor chamber has an inner cavity, the support component is arranged in the inner cavity, and the support component is used for supporting a wafer; the semiconductor chamber comprises a dielectric window, and the dielectric window is arranged opposite to the support component; the electromagnetic coil is arranged outside the semiconductor chamber and opposite to the dielectric window, and a containing space is formed between the electromagnetic coil and the dielectric window; and the insulating capacitance adjusting piece is movably arranged in the containing space and used for covering part of the dielectric window. The above scheme can solve the problem that part of the wafer cannot meet the processing requirements when the semiconductor process equipment processes the wafer.

The utility model discloses a kind of battery monomer and battery, battery monomer includes electrical connector, coil, shell and one-way conducting piece, wherein electrical connector is used for the electrical connection of different components inside battery monomer;Coil is sleeved on at least partial electrical connector, coil is composed of multiple continuous single circle head-to-tail connection, two end of coil are first end and second end respectively;Gap exists between coil and electrical connector;One of first end and second end is connected shell;One-way conducting piece is between coil and shell.Visible, this battery monomer is influenced coil by the generation of current in electrical connector, make the current flowing to shell in coil, to be able to promote the voltage of shell, prevent shell voltage too low to cause shell corrosion occur condition occurs.Simultaneously, due to one-way current conduction in coil, so that shell electron cannot move reversely, can guarantee the electrified state of shell.

The utility model belongs to the technical field of proton exchange membrane fuel cells, and particularly relates to a cathode flow field plate of a proton exchange membrane fuel cell for a new energy vehicle, a cathode flow channel is arranged on the cathode flow field plate, the cathode flow channel is snake-shaped and is divided into a snake-shaped flow channel and a snake-shaped rib plate, and the snake-shaped rib plate is arranged in the snake-shaped flow channel. A plurality of snakelike rib plates are arranged among a plurality of snakelike flow channels at intervals, spoilers are arranged in the snakelike flow channels at intervals, the spoilers vertically stand in the snakelike flow channels and reduce the width of local positions of the snakelike flow channels, a circle of sealing groove capable of being provided with a sealing ring is arranged outside the snakelike flow channel on the outermost side, and the sealing ring is arranged in the sealing groove. The cathode flow field plate is internally provided with a plurality of snakelike rib plates, the snakelike rib plates are provided with drainage grooves extending along the shapes of the snakelike rib plates, each snakelike rib plate is provided with a branch drainage hole, the cathode flow field plate is internally provided with a main drainage channel communicated with the branch drainage holes, and the main drainage channel extends out of the cathode flow field plate. According to the scheme, the problems of gas leakage, water logging blockage, insufficient mass transfer and the like are solved through geometric optimization of a flow channel, innovation of a turbulent flow mechanism and improvement of a drainage system.

The application discloses a dustproof and heat dissipation type low-voltage switch cabinet, and belongs to the electrical equipment field. The cabinet body is provided with an air inlet and an air outlet. The cabinet body is provided with a heat dissipation fan and a temperature sensor for detecting the temperature in the cabinet body. The cabinet body is provided with a driving motor for driving the heat dissipation fan to rotate. The temperature sensor controls the state of the driving motor. The outer wall of the cabinet body is provided with an electrostatic dust removal device at the air inlet. The application has the effects of improving the heat dissipation of the low-voltage switch cabinet and reducing the dust entering the cabinet body.

This invention discloses a superconducting magnet and simulation device for plasma confinement. The superconducting magnet includes: a frame on which superconducting coils are mounted, the superconducting coils including a central coil and end coils; a cooling medium tank, a cold shield, and a vacuum Dewar inner cylinder are sequentially arranged outside the frame; a superconducting power supply, including a first superconducting power supply and a second superconducting power supply, the first superconducting power supply simultaneously supplies power to the central coil and end coils, and the second superconducting power supply supplies power to the end coils when needed; a protection diode connected in parallel across the two ends of the central coil and the two ends of the end coils; a radial lifting rod disposed on the outside of the frame; and an axial lifting rod parallel to the axis of the frame. This invention not only achieves adjustable magnetic field uniformity but also effectively ensures the safety of the superconducting magnet in the event of magnet quenching, while reducing the impact of heat leakage while meeting the protection requirements for lifting and transportation.