49results about How to "Reduce voltage" patented technology

An apparatus is dedicated to controlling the voltage of a battery comprising at least two modules connected in series and each comprising at least one electrochemical cell, and each coupled to voltage balancing means. The apparatus comprises measurement means for determining first voltages across the terminals of each of the modules, calculation means for measuring a second voltage across the terminals of the battery and for determining a mean voltage per module representative of the second voltage divided by the number of modules, and processor means for comparing each measured first voltage with the mean voltage per module and for delivering to the balancing means signals representative of the result of the comparison whenever the first voltage of a module is greater than the mean voltage, such that the balancing means reduce the voltage across the terminals of the module.

This invention relates to the field of cathode material technology for lithium-ion batteries, specifically a method for in-situ construction of ultrathin amorphous nano-coating materials. The method involves the in-situ construction of ultrathin amorphous nano-coating layers using sol-gel, co-precipitation, and electrodeposition combined with hydrothermal methods. 2 MnO 3 The cathode material is coated to encapsulate Li. x MnO y The amorphous nanostructure is uniform and completely coated on Li. 2 MnO 3 The surface of the positive electrode material (Li x MnO y @Li 2 MnO 3 ), where Li x MnO y It is an amorphous coating layer with a thickness of 0.1-10 nm; this invention utilizes Li 2 MnO 3 The cathode material is coated with an ultrathin amorphous Li. x MnO y While ensuring the high discharge specific capacity of the material, it also significantly suppresses Li 2 MnO 3 The voltage decay was observed, and after assembling it into a coin cell and testing its performance, the coated Li was found to have... 2 MnO 3 The material exhibits zero voltage decay after 50 charge-discharge cycles.

The utility model discloses a kind of dielectric fiber driven grippers, including mounting base and the assembly on the mounting base of several clamping jaw mechanisms, all the clamping jaw mechanisms are distributed along circumference, to realize the automatic centring of object and catch;Each the clamping jaw mechanism includes hingedly connected first clamping jaw and second clamping jaw, and the first dielectric fiber driver for controlling the centripetal or centrifugal motion of the first clamping jaw is connected between the first clamping jaw and the second clamping jaw;The second clamping jaw is assembled on the mounting base.The utility model successfully provides a kind of gripper solution with low driving voltage, simple structure, light weight, high reliability and good grasping adaptability by combining low-voltage dielectric fiber driver with optimized design rigid clamping jaw mechanism, and it has excellent comprehensive performance and good application value.

The application discloses a control circuit and electronic equipment, and belongs to the technical field of circuits. The control circuit comprises a first switching device, an input end of the first switching device being used for being connected with a positive electrode of a battery cell, a first protection device, a first end of the first protection device being used for being connected with the positive electrode of the battery cell, and a second end of the first protection device being connected with an enable end of the first switching device; a switching assembly, the switching assembly being connected with a negative electrode of the battery cell and being used for cutting off or connecting a power supply loop in which the battery cell is located; and a second protection device, a first end of the second protection device being connected with an output end of the first switching device, and a second end of the second protection device being connected with a control end of the switching assembly.

The present application belongs to the technical field of lithium battery material recycling and electrochemical delithiation, and relates to an electrochemical delithiation device and method for recycling lithium elements in black powder of retired lithium ion batteries, wherein the device is an integrated electrochemical reaction delithiation system: a movable anode pole piece made of retired black powder material can continuously move under the drive of an electric unwinding machine; and a cathode pole piece is fixed on at least one side of the movable anode pole piece. When the power is turned on, lithium in the retired black powder material in the anode is removed into the electrolyte. The movable anode pole piece delithiated by the electrochemical delithiation device then enters a downstream cleaning mechanism to remove the residual lithium ions on the surface. The method replaces the cathode hydrogen evolution reaction in the conventional system with an oxygen reduction reaction with a more positive electrode potential, achieving low-energy electrochemical delithiation. Compared with the prior art, the electrochemical delithiation device can realize large-batch, low-energy and continuous processing of the retired black powder.

The application belongs to the technical field of organic semiconductor electronic devices, and discloses a flexible threshold value adjustable negative capacitance transistor and a preparation method, and a small logic circuit. The flexible threshold value adjustable negative capacitance transistor comprises a flexible substrate, an organic semiconductor layer, an organic dielectric layer, a source-drain electrode and two gate electrodes. The preparation method is as follows: a bottom gate electrode is prepared on the surface of the flexible substrate and an organic ferroelectric film is spin-coated; an organic polymer film is spin-coated on the surface of the organic dielectric layer as a semiconductor channel layer; a source / drain metal electrode is prepared; finally, an organic ferroelectric film is spin-coated and a top gate electrode is prepared. The application utilizes the negative capacitance principle of the organic ferroelectric transistor to reduce the working voltage and power consumption, and the double-gate structure is made to make the threshold voltage of the transistor adjustable, which has a great effect in the flexible logic circuit based on the unipolar device.

The application provides a host material, a double-host-containing organic electroluminescent material and an organic electroluminescent device, the host material has a structure shown in general formula 1, and the host material or the double-host-containing organic electroluminescent material of the application is applied to the organic electroluminescent device, so that the driving voltage of the device can be reduced, the luminous efficiency is improved, and the service life is prolonged.

The application relates to the technical field of semiconductor bridge electrostatic discharge protection and current protection, and discloses an electrostatic discharge and current protection circuit of a semiconductor bridge, which comprises an ESD protection circuit, a current protection circuit and an NMOS connected in parallel, the ESD protection circuit comprises a bidirectional transient suppression diode and a capacitor connected in parallel, the bidirectional transient suppression diode clamps a transient high voltage by breakdown conduction, the voltage is limited in a safe range, the capacitor reduces a voltage rising rate and suppresses overshoot by shunting and absorbing a transient current, the NMOS provides a low-resistance discharge path, and the voltage and current impact applied to the semiconductor bridge are reduced; the current protection circuit comprises a bidirectional rectifier circuit and a detection circuit; and the NMOS is connected between the detection circuits. The application can realize ESD protection and current protection of the semiconductor bridge, prevents current from damaging the structure, and guarantees the safety of the semiconductor bridge working in an electromagnetic and ESD environment.

The invention provides an intelligent early warning device for a dangerous area. The intelligent early warning device comprises a nixie tube display module, a sound-light alarm module, a vibration sensing module, a human body sensing module, a key module, a reset circuit and a crystal oscillation circuit which are connected with an STC89C51 single chip microcomputer. The STC89C51 single-chip microcomputer serves as a control core to detect whether infrared heat energy generated by human body radiation or vibration generated by human body actions exists in a defense area or not, the signal processing integrated circuits of the human body induction module and the vibration induction module process received signals and then transmit the signals to the STC89C51 single-chip microcomputer, the single-chip microcomputer conducts intelligent control, and the human body induction module and the vibration induction module are connected with the STC89C51 single-chip microcomputer. And the sound-light alarm module is started for field alarm. The anti-theft alarm device is arranged in dangerous area channels, important equipment and other areas with potential safety hazards, or is used for anti-theft alarm of warehouse doors and windows. Infrared and vibration signals in a working area can be monitored in real time, and manpower and material resources are saved.

The utility model discloses a desktop computer mainboard on-board BGA central processing unit DDR6 memory structure, which belongs to the technical field of desktop computer mainboard structures, and comprises a mainboard, an on-board BGA central processing unit is arranged in the middle of the upper end of the upper surface of the mainboard, a heat conduction plate is arranged above the on-board BGA central processing unit, and the heat conduction plate is connected with the mainboard. The mainboard comprises an onboard BGA central processing unit, a DDR6 memory slot is formed in one side of the onboard BGA central processing unit, a 24PIN power supply interface is formed in one side of the DDR6 memory slot, a plurality of vertically-arranged SATA interfaces are formed below the 24PIN power supply interface, and a startup jumper needle port and a Type-C needle port are sequentially formed in the lower edge position of the upper surface of the mainboard from right to left. The CPU of the mainboard is integrally packaged by adopting the BGA, and meanwhile, a special DDR6 slot is designed to be matched with a relevant IO interface and a mainboard needle port, so that the mainboard has better transmission rate, higher stability, lower power consumption and larger capacity, can meet the requirement of a current computer for large throughput data volume of AI large model operation, and is externally connected with a plurality of electronic devices.

The utility model relates to the field of dimming drive circuits, and particularly discloses an LED analog-digital hybrid dimming drive circuit, which comprises an MCU controller and a dimming drive chip, the low-side output end of the dimming drive chip is electrically connected with a power switch element, the power switch element is electrically connected with the negative electrode of an LED lamp through an inductance element, and the power switch element is electrically connected with the negative electrode of the LED lamp through the inductance element. The PWM output end of the MCU controller outputs digital signals to the PWM input end of the dimming driving chip, a digital-to-analog conversion integrating circuit is arranged between the IO output end of the MCU controller and the ADJ input end of the dimming driving chip, and the IO output end of the MCU controller outputs digital signals to the digital-to-analog conversion integrating circuit. The digital-to-analog conversion integrating circuit converts the digital signal into an analog signal and transmits the analog signal to the ADJ input end of the dimming driving chip.

The invention relates to a method for testing a filter unit (10), comprising an exchangeable filter insert (20) having at least one polarization element and an electrically insulating filter material which can be polarized by energizing the filter insert (20) via the polarization element, and a power supply module (22), an electronic data processing device (30) evaluates the energization of the filter cartridge (20) by the power supply module (22) in order to detect an erroneous operating state and / or a malfunction of the filter unit (10).

This invention provides a butterfly-shaped symmetrical microcrystalline laser, relating to the field of laser technology. It includes a triangular frame, a cathode, an anode, and reflectors. A V-shaped resonant cavity is arranged within the triangular frame. Three reflectors are respectively positioned at the two openings and corners of the V-shaped resonant cavity. Two anodes are symmetrically arranged on the first and second sides of the triangular frame. The cathode is located between the two sides of the V-shaped resonant cavity and connects to the corner of the V-shaped resonant cavity. By replacing the traditional linear resonant cavity with a V-shaped resonant cavity, the same cavity length can be transformed into two elongated holes of different lengths, significantly reducing manufacturing difficulty and improving manufacturing accuracy. The distance between the cathode and anode of the laser using the V-shaped resonant cavity is significantly shortened, greatly reducing the voltage required for laser startup, lowering the high-voltage protection requirements of the laser, and improving the safety of laser operation.

The utility model relates to timing switch device field especially, relate to a kind of embroidery lace fabric setting device timing starting device, including wheel frame;It further includes high resistance block, the inside of wheel frame is fixedly connected with two spacers, two spacers are fixedly connected with high resistance block, the outside of two spacers is fixedly connected with low resistance block;The utility model lets two conductive discs normal time contact with high resistance block, to reduce the voltage when current enters fabric setting equipment after passing through high resistance block, to reduce the operating power of fabric setting equipment, when user needs to use fabric setting equipment, through servo motor makes compound gear forward rotation, until active block bump built-in motor switch, to make servo motor stop and stop power, subsequently clockwork timer makes compound gear slow uniform speed reverse again through upper gear, before active block recontact passive block, all contact with conductive disc will change from high resistance block to low resistance block, let fabric setting equipment operate with higher high power.

The embodiment of the invention relates to the technical field of new energy automobiles, and discloses a charging system, a control method of the charging system and a vehicle, in the charging system, a charging port is used for coupling power supply equipment, a power battery is coupled to the charging port, and a motor driving circuit is coupled to the charging port and the power battery. The energy storage circuit is coupled to the motor driving circuit, the power battery and the charging port, and the control circuit is configured to perform boost charging or direct charging on the power battery by controlling a connection mode among the energy storage circuit, the motor driving circuit and the power battery. According to the technical scheme, the structure of the charging system can be simplified, and the integration level is improved.

Disclosed are an organic electroluminescent material and a device thereof. The organic electroluminescent material is a compound having a structure of Formula 1, which can be used in an organic electroluminescent device, for example, as an electron blocking material, etc. The application of these compounds in an organic electroluminescent device can reduce the device voltage, improve the device efficiency, and especially can greatly improve the device lifetime, providing better overall performance of the device. Also disclosed are an organic electroluminescent device comprising the compound and a compound composition comprising the compound.

The present application relates to an organic compound, an electronic element, and an electronic device. The organic compound provided by the present application has a structure shown in formula I, and the application of the organic compound to an electronic element can significantly improve the performance of the device.

The invention discloses a nano porous nickel electrocatalyst material as well as a preparation method and application thereof. Belongs to the technical field of electrolyzed water hydrogen production catalysts. According to the method, a nickel net substrate is subjected to pretreatment, electrogalvanizing, high-temperature alloying and chemical dealloying, and finally the nano-porous nickel electrocatalyst material growing on the nickel net is obtained. The electrocatalyst material prepared by the method has a uniform three-dimensional nano porous structure, the thickness of a porous layer is 10-70 [mu] m, and the aperture is 100-500 nm. As an alkaline electrolytic water hydrogen evolution reaction cathode catalyst, the material has high specific surface area and rich active sites, and shows lower overpotential and excellent long-term stability. The method is simple in technological process, raw materials are easy to obtain, and the method has large-scale production potential and has wide application prospects in the field of hydrogen production through water electrolysis.

The present specification relates to a compound of Chemical Formula 1 and an organic light-emitting device comprising the same. The compound described in the specification can be used as a material for an organic layer of an organic light-emitting device. The compound according to at least one embodiment of the present specification can achieve an improvement in efficiency, a lower driving voltage, and / or an improvement in lifespan characteristics in an organic light-emitting device. In particular, the compound described in the specification can be used as a material for a light-emitting layer. In addition, compared with an existing organic light-emitting device, the organic light-emitting device has the effects of lower driving voltage, high efficiency and / or long service life.

The utility model discloses a detection box for rapidly detecting a multi-branch piezoelectric ceramic polarization clamp, which comprises a shell box body and a detection assembly, and the top of the shell box body is detachably connected with a box cover. The detection assembly comprises a spring bearing plate which is arranged in the inner cavity of the shell box body and is used for placing a circuit clamp to be detected, a power supply which is arranged on the bottom surface of the inner cavity of the shell box body, and an indicating circuit which is arranged at the inner bottom of the box cover, and spring probes which are used for correspondingly contacting with branches of the circuit clamp to be detected are distributed at the top of the spring bearing plate at intervals; the circuit is low in voltage, is high in safety coefficient, can achieve the automatic detection, is convenient to use, can rapidly and accurately detect whether the branch of the polarization clamp is abnormal or not, can completely eradicate the polarization condition under the circuit fault, improves the efficiency of detecting the fault of the branch, achieves the detection of all polarization clamps before working every day, and improves the work efficiency. The problem that time and labor are wasted when the multimeters detect one by one is solved.

This invention provides a compound for use in organic electroluminescent devices and its application, the compound having the structure shown in formula (I): L, L 1 L 2 Each is independently selected from single-bonded, substituted or unsubstituted C6-C30 arylene or substituted or unsubstituted C3-C30 heteroarylene; Ar 1 -Ar 2 Each is independently a substituted or unsubstituted C6-C30 aryl group or a substituted or unsubstituted C3-C30 heteroaryl group; X 1 ~X 11 Each independently selected from CR 1 Or N, the R 1 Each is independently selected from one of the following: hydrogen, cyano, nitro, hydroxyl, substituted or unsubstituted C1-C20 chain alkyl, C3-C20 cycloalkyl, C1-C20 alkoxy, C1-C20 silyl, C6-C60 aryl, and C3-C60 heteroaryl, wherein R 1 Each of the substituted or unsubstituted groups can be independently and optionally linked to form a ring; when the above-mentioned substituted or unsubstituted groups have substituents, the substituents are selected from one or more combinations of halogens, C1-C20 chain alkyl, C3-C20 cycloalkyl, C1-C20 alkoxy, C1-C20 thioalkoxy, C1-C20 silyl, cyano, nitro, hydroxyl, C6-C60 aryl, and C3-C60 heteroaryl.

The utility model discloses a miniature circuit breaker contact assembly, which comprises a static contact and a moving contact, and is characterized in that the moving contact is provided with a first hinge hole, hemispherical conductive parts are arranged on the moving contact, the static contact is provided with a second hinge hole, the static contact is provided with an arc-shaped groove for the hemispherical conductive parts to be clamped in, and the arc-shaped groove is communicated with the first hinge hole and the second hinge hole. The hemispherical conductive part can be attached to the inner side wall of the arc-shaped groove, and an elastic conductive piece is arranged between the static contact and the magnet yoke. The contact assembly is simple in structure and reasonable in design, can effectively increase the contact area between the moving contact and the static contact, avoids local overheating, can reduce the voltage of the contact end when the contacts are broken, reduces the possibility that the contacts are burnt out, improves the working stability of the contact assembly, and prolongs the service life of the contact assembly.

The present application relates to an organic compound, and electronic elements and electronic devices using the same. The organic compound has a structure shown in Formula I, and application of the organic compound to an organic electroluminescent device can significantly improve the performance of the device.

This invention provides a titanium alloy with a three-phase microstructure and its preparation method. The method includes: treating the titanium alloy with pulsed current followed by heat treatment in a heat treatment furnace. This invention combines pulsed current treatment with conventional heat treatment, overcoming the barrier of high-density dislocations required for the formation of a three-phase microstructure. Only two steps are needed to successfully prepare a three-phase microstructure within the titanium alloy, achieving a short-process and rapid preparation of a three-phase microstructure. The net shape of the sample obtained after treatment by this invention remains unchanged, ensuring that the net shape of the workpiece is not damaged while obtaining a titanium alloy with a three-phase microstructure. The three-phase titanium alloy obtained by this invention exhibits excellent strength and plasticity, with a tensile strength of 1100-1130 MPa and an elongation of 18.5%-23%.

The present invention relates to an organic light emitting diode comprising a non-transparent substrate, an anode, a cathode, an emission layer, an electron injection layer and an electron transport layer stack; and to a display device or lighting device comprising the same.

The present application relates to a kind of method and device for realizing the fast reduction of inverter input voltage, the method is: control boost circuit and inverter circuit in inverter open loop output, control the fan of inverter to open, to reduce the input voltage of inverter.The device includes boost module circuit in inverter, control circuit and fan, control circuit controls boost circuit to carry out open loop output, and control fan to open, to reduce the input voltage of inverter.The present application is realized by changing control method, and the fast reduction of inverter input voltage is realized with existing circuit, without increasing additional circuit and space, reduce cost, can also improve efficiency.

The invention provides a light emitting diode and a manufacturing method, and belongs to the technical field of semiconductors. The light-emitting diode comprises a light-emitting structure and an indium tin oxide thin film stacked on the light-emitting structure, the sheet resistance of the indium tin oxide thin film is lower than 40 omega / square, and the thickness of the indium tin oxide thin film ranges from 30 nm to 150 nm. The power consumption of the device can be reduced, and the service life and reliability of the device are prolonged.

Disclosed are an organic electroluminescent material and a device thereof. The organic electroluminescent material is an indolocarbazole fused double seven-membered ring compound represented by a structure of formula 1, which can be used as a host material in an organic electroluminescent device, and provides better comprehensive performance for the device, especially low voltage, high efficiency and long service life. Also disclosed are an electroluminescent device and a compound composition comprising the organic electroluminescent material, and an electronic device comprising the electroluminescent device.

This invention relates to the field of metal surface treatment technology, specifically to a low-cost, high-corrosion-resistant micro-arc oxidation film for magnesium alloys and its preparation method. First, the magnesium alloy workpiece is pretreated. Then, an electrolyte for the micro-arc oxidation process is prepared. The pretreated magnesium alloy workpiece is used as the anode, and stainless steel as the cathode, placed in the electrolyte for micro-arc oxidation, ultimately yielding a dense oxide film. This invention utilizes an externally controlled electrical parameter process of "online monitoring and regulation control + composite carrier wave," combined with a low-energy-consumption electrolyte system, to achieve the desired dense oxide film. The main components of the oxide film are magnesium silicate, magnesium phosphate, magnesium oxide, magnesium fluoride, and zirconium oxide, resulting in high film hardness and improved wear resistance. It achieves a neutral salt spray test rating of ≥480h (10μm) at level 9, meeting the performance requirements of automotive parts and suitable for large-scale industrial production, with a comprehensive energy consumption reduction of 50%~60%.

The application belongs to the field of integrated circuits, and discloses a high-speed low-power mixed dynamic comparator with low power supply voltage and low delay, which comprises: a pre-amplification part mainly composed of a first tail transistor M1, input transistors M3 and M4 and a transmission gate; and a latch part mainly composed of a second tail transistor M2, transistors M5 and M6 and cross-coupled transistors M7 and M8; the two parts are connected through differential nodes VOP and VON, and the conduction state of M1 and M2 is controlled by a clock signal. The comparator reduces the transistor stack number between the power supply and the ground, and is beneficial to work under low power supply voltage. The comparator amplifies the input differential signal in the first clock phase and directly stores it on the parasitic capacitance of the latch stage, directly enters the latch regeneration process in the second clock phase, shortens the delay from the clock to the output, and can maintain stable delay within a wide input common-mode voltage range.