50results about How to "Extended working voltage range" patented technology

Provided is a reference voltage generation circuit. The reference voltage generation circuit comprises a current mirror unit, a first resistance, a second resistance and a temperature coefficient compensation unit. The temperature coefficient compensation unit comprises a first N-channel metal oxide semiconductor (NMOS) tube, a second NMOS tube and a third NMOS tube. A grid electrode and a drain electrode of the first NMOS tube are connected with each other, and are connected with a second end of the first resistance, and a source electrode of the first NMOS tube is connected with the ground. A grid electrode and a drain electrode of the second NMOS tube are connected with each other, and are connected with a first node of the current mirror unit, and a source electrode of the second NMOS tube is connected with the ground. A grid electrode and a drain electrode of the third NMOS tube are connected with each other, and are connected with a second end of the second resistance, and a source electrode of the third NMOS tube is connected with the ground. The first NMOS tube, the second NMOS tube and the third NMOS tube work in a subthreshold region or a saturation region. A first end of the first resistance is connected with a second node of the current mirror unit. A first end of the second resistance is connected with a third node of the current mirror unit. A work voltage range of the reference voltage generation circuit is wide, and energy consumption of the reference voltage generation circuit is low.

A high-efficiency intelligent high-side electronic load switch with wide voltage adaptability comprises a power supply module, a core control module, a self-boosting module, a voltage detection module, a current detection module and a switching module. The core control module is used for signal acquisition, information processing and storage and logic control; firstly, the core control module receives an external switch control input signal and detection signals output by the current detection module and the voltage detection module and processes and analyzes monitoring data according to an internally stored program to control the switching module to complete corresponding actions; secondly, the core control module provides a PWM control signal for the self-boosting module. The voltage detection module and the current detection module are used for detecting the real-time operating voltage and current of the switching module and transmitting data to the core control module for processing and analysis. The self-boosting module is used for providing a driving voltage for a switching tube in the switching module. The switching module is used for executing the on-off actions of a load. The high-efficiency intelligent high-side electronic load switch is wide in operating voltage range, high in operating frequency, high in efficiency, low in loss, safe, reliable and programmable.

The invention discloses an electrode preparation method and a battery. The battery anode is prepared by pasting an electrode film prepared from an active substrate, a conductive agent and a binder toa current collector, the surface density of a pole piece is improved, the electrode capacity and the pole piece stability are improved, and the internal resistance is reduced. In the preparation process of the electrode film, lamellar crystals of the binder are stretched to paste the active substance and conductive agent, influence of expansion and contraction of the active substance caused by ionembedding and separating is reduced. The battery cathode is prepared by coating a slurry prepared from a pre-lithium active substance, a binder and a conductive agent on the current collector, the active substrate and conductive agent of the cathode are wetted rapidly, dispersed ultra-finely and homogeneous in a binder solution, the amount of the solvent for slurry dispersion is reduced, energy consumption for drying is reduced, the electrode process is shortened, and the load capacity of the cathode active substance is improved. The anode and cathode of the battery can be designed in an integrated way, and energy storage of the battery is improved. The electrode preparation method is simple, production and manufacture are realized by means of existing equipment, and the method is easy topopularize.

The invention relates to a constant-transconductance rail-to-rail operational amplifier. The constant-transconductance rail-to-rail operational amplifier comprises a rail-to-rail input stage, a gain stage and an output stage in sequential connection. The rail-to-rail input stage a PMOS (p-channel metal oxide semiconductor) differential pair, an NMOS (n-channel metal oxide semiconductor) differential pair, PMOS differential pair and NMOS differential pair tail current sources and an NMOS differential pair load circuit, and the PMOS differential pair and the NMOS differential pair are complementary. The gain stage comprises a self-bias cascade current mirror, and source electrodes of NMOS tubes and PMOS tubes of the PMOS differential pair and the NMOS differential pair are connected with the self-bias cascade current mirror. The output stage comprises a first PMOS tube, a first NMOS tube and a Miller compensator, the first PMOS tube and the first NMOS tube are in common-source connection, grid electrodes of the first PMOS tube and the first NMOS tube are connected with the self-bias cascade current mirror, and the Miller compensator is formed by series connection of a Miller compensation capacitor and a compensation resistor. The constant-transconductance rail-to-rail operational amplifier has advantages that input stage constant transconductance in a full voltage operating range can be guaranteed effectively, the whole circuit structure is high in stability, the operating voltage range of the operational amplifier is expanded, low-voltage application is realized, and the common-mode rejection ratio of the operational amplifier is increased.

The invention discloses a hybrid super capacitor and a manufacturing method thereof. According to the hybrid super capacitor and the manufacturing method thereof, a pseudo-capacitor mechanism and an electric double-layer capacitor mechanism are coordinately combined in an energy storage device, carbon materials are used as positive electrode electroactive materials, iron oxide materials are used as negative electrode electroactive materials, ionic liquid is used as electrolyte, and the hybrid super capacitor is assembled. The hybrid super capacitor has the double characteristics of an electric double-layer capacitor and a pseudo-capacitor and has the advantages of being high in charging and discharging speed, large in power density, small in internal resistance, long in cycle life and the like, and the hybrid super capacitor also has the advantages of being high in capacity, high in average voltage and large in energy density.

The invention relates to a molybdenum dioxide combined electrode and a preparation method and applications thereof, and belongs to the technical field of electrochemistry. The method comprises the steps: preparing a mixed alkaline solution containing soluble molybdate and other types of metallic oxysalt; and forming a composite sedimentary deposit containing molybdenum dioxide and metal on the surface of a current collector of an electrode through electrochemical codeposition. In this way, a molybdenum dioxide combined electrode for a supercapacitor is obtained. The molybdenum dioxide combined electrode for a supercapacitor is obtained through electrochemical codeposition, one kind of metal is evenly distributed inside a molybdenum dioxide sedimentary deposit, the selected metal can exist stably without electrochemical corrosion within the working electromotive force range of molybdenum dioxide, and the metal exhibits high hydrogen over-electromotive force without affecting the charge and discharge efficiency of molybdenum dioxide. Therefore, the electronic conductivity and the electrochemical performance of the prepared electrode can be improved, and the electrode with the high specific capacitance characteristic can be obtained. The combined electrode is reasonable in structural design, is simple to prepare, can be prepared on a large scale, and can be applied to supercapacitors on a large scale.

A memory circuit includes a voltage boosting circuit for generating a voltage that exceeds a voltage supply of the voltage boosting circuit. The voltage boosting circuit includes a first transistor having a first polarity type and a second transistor having a second polarity type opposite the first transistor. The first transistor is a planar transistor, a source of the first transistor being connected with the voltage supply, and a gate of the first transistor receiving a control signal. The second transistor includes a gate formed in at least two planes. A source of the second transistor is connected with the voltage supply, a gate of the second transistor receives the control signal, and a drain of the second transistor is connected with a drain of the first transistor and forms an output of the voltage boosting circuit for generating a boosted supply voltage as a function of the control signal.

The invention belongs to the technical field of surface treatment of a part, and relates to a compressed air microporous stirring device for a surface treatment tank liquor, comprising an air inlet pipe, an air equalizing pipe, a microporous stirring pipe and a compressed air source; wherein the compressed air source communicates with the microporous stirring pipe through the air inlet pipe and the air equalizing pipe in sequence; the microporous stirring pipe is a PE polymer polyethylene microporous tube containing micron-sized pores. The invention provides a compressed air micropore stirringdevice for the surface treatment tank liquor, which has the advantages of constant tank liquor temperature, uniform concentration, good consistency between an anodized film layer and a plating layerfor surface treatment of parts and ability of preventing the heat of parts from being burnt effectively.

The invention provides a preparation method and application of a polymer-based solid electrolyte, and belongs to the technical field of preparation of lithium ion battery materials. An inorganic matter is added into an organic polymer solid electrolyte of a garnet system to regulate and control a polymer crystallization process, so that the morphology structure and crystallinity of the polymer electrolyte are improved, and the problem that the polarization current of the polymer electrolyte is increased under a high voltage is solved. The method is simple in process and low in cost. The cyclicvoltammetry current of the lithium ion battery assembled by adopting the polymer solid electrolyte can still be controlled at 0A when the potential is as high as 5V, i.e., the lithium ion battery based on the electrolyte disclosed by the invention can still work stably under a relatively high voltage.

A liquid crystal (LC) pixel circuit of a LC display panel includes a first, a second, a third and a fourth switches, a LC capacitor and a storage capacitor. A first and a control terminals of the first switch respectively receive a common voltage and a first gate signal. A first and a control terminals of the second switch respectively receive a data voltage and a second gate signal. The storage capacitor and the LC capacitor electrically connect between second terminals of the first and second switches. A first and a control terminals of the third switch respectively receive the common voltage and a third gate signal. A first and a control terminals of the fourth switch respectively receive a set voltage and a fourth gate signal. Second terminals of the third and the fourth switches respectively connect to the second terminals of the second and the first switches.

The invention discloses a double-ion battery based on molybdenum selenide-graphite and a preparation method of the double-ion battery. The gel containing phosphomolybdic acid is obtained through a simple sol-gel method. The preparation method comprises steps of calcining to synthesize the molybdenum selenide/nitrogen-doped carbon (MoSe2/NC) compound, and designing the molybdenum selenide-graphite-based dual-ion battery by taking the MoSe2/NC compound as a negative electrode material of the dual-ion battery and taking graphite as a positive electrode material. The method is advantaged in that the battery designed by the method is low in cost, the working voltage range of the assembled dual-ion battery is as high as 2-5V, and the assembled dual-ion battery is good in cycling stability, relatively high in reversible capacity and good in high-rate performance, the capacity is 86 mA h/g after 100 times of circulation under 2C multiplying power, and the 76 mA h/g reversible capacity can still be provided after circulation under 20 C super-large multiplying power.

The invention relates to a multi-gap vacuum switch based on plasma jet triggering, which comprises a plurality of electrodes with central openings, an intermediate electrode internally equipped with electric spark discharge plasma jet, insulating supports, ring-shaped voltage sharing ceramic capacitors, shielding covers, an insulating sleeve and a high-voltage pulse triggering and freewheeling circuit. The electrodes with central openings and the intermediate electrode internally equipped with electric spark discharge plasma jet constitute a plurality of vacuum gaps connected in series. The intermediate electrode internally equipped with electric spark discharge plasma jet is internally composed of upper and lower plasma jet nozzles, a discharge sphere gap provided with a low-boiling-pointsolid material inside and provided with a gas hole in the center, and a plasma chamber. The plasma jet of the invention adopts a freewheeling circuit to produce more abundant plasmas. Through the propulsion of the gasification of the low-boiling-point solid material, the height of the plasma nozzles is increased, and the reliability of the trigger system is improved. Through series connection ofa plurality of vacuum gaps, the voltage level of the switch is improved.

The invention discloses an SCR electrostatic protection structure and a forming method thereof. The structure comprises: a first unit and a second unit, wherein the first unit comprises a first P-typedoped region positioned at the top in a first N-type well, and a first N-type doped region positioned at the top in a first P-type well, and the second unit comprises a second P-type doped region positioned at the top in a second N-type well, and a second N-type doped region and a third P-type doped region which are located at the top in a second P-type well; a bridging doping group, wherein thebridging doping group comprises a plurality of fourth P-type doped regions arranged along a second direction, each fourth P-type doped region is located at the top of part of the second N-type well and extends to the top of part of the second P-type well, the second direction is perpendicular to the first direction, and a fourth N-type doped region is arranged between the adjacent fourth P-type doped regions; and a conductive structure electrically connected with the fourth N-type doped region and the fourth P-type doped region. According to the invention, the performance of the SCR electrostatic protection structure is improved.

This electricity storage device which is configured to contain an ionic liquid represented by formula (1) in, for example, an electrolyte or an electrode has the advantage of being usable in a low-temperature environment in spite of the ionic liquid contained therein.

(In the formula, each of R¹ and R² independently represents an alkyl group having 1-5 carbon atoms; and n represents 1 or 2.)

The invention discloses a resistance-capacitance power supply for a tri-manganin electric energy meter. A voltage-stabilizing module, a first voltage-stabilizing diode, first and second diodes, a safety regulation capacitor and a current-limiting resistor are arranged between a phase A and a neutral wire N, between a phase B and the neutral wire N and between a phase C and the neutral wire N, wherein a first diode unit is connected with an input end of a phase wire voltage-stabilizing module connected with a phase wire; a second diode unit is connected with an input end of a neutral wire voltage-stabilizing module connected with the neutral wire; the safety regulation capacitor and the current-limiting resistor are connected in series between the first diode unit and the second diode unit; the anode of the first voltage-stabilizing diode is connected with the phase wire, and the cathode of the first diode is connected with the input end of the phase wire voltage-stabilizing module; the anode of the second voltage-stabilizing diode is connected with the neutral wire, and the cathode of the second diode is connected with the input end of the neutral wire voltage-stabilizing module; and the output voltage of the neutral wire voltage-stabilizing module is loaded on a singlechip of the electric energy meter, and the output voltage of the phase wire voltage-stabilizing module is loaded on a metering chip of the electric energy meter. The resistance-capacitance power supply has the advantages that: a printed circuit board (PCB) resource is not occupied, the reliability is high, and the cost is low.

An addressing driving method for a plasma display is described. The plasma display comprises at least a scan line and at least a common electrode. The addressing driving method uses the following driving scheme. Initially the plasma display is in a reset period, a scanning voltage is used to drive the scan line to equalize the wall charge distribution in cell. When the plasma display is in an addressing period, a time-varying common voltage is applied to the common electrode. Finally, the plasma display is in a sustain period, the display cells are sustained in discharge condition. The driving scheme not only discharge lag for high speed addressing but the voltage margin of the panel voltage is also increased.