46results about How to "Increase the output voltage" patented technology

The invention relates to an aqueous alkaline zinc-iodine battery and a preparation method thereof, and belongs to the technical field of aqueous zinc-iodine batteries. The battery includes: a positive electrode; a negative electrode; and an aqueous alkaline electrolyte; wherein the positive electrode comprises a current collector, a positive electrode active material, a conductive agent and an adhesive, and the positive electrode active material is iodide; the aqueous alkaline electrolyte comprises a chlorine-containing additive, a zinc salt electrolyte, an alkaline inorganic salt and water. The aqueous alkaline zinc-iodine battery provided by the invention is low in cost and simple to manufacture. According to the aqueous alkaline zinc-iodine battery provided by the invention, the iodide is adopted as the positive electrode active material, so that instability and potential safety hazards caused by taking an iodine elementary substance as the positive electrode at present are avoided. The battery disclosed by the invention releases a high-potential discharge platform at 1.65-1.68 V, the discharge capacity reaches 372-385 mAh.g <-1 >, and the battery shows rapid oxidation-reduction kinetics and excellent long-acting cycle stability.

The invention discloses a porous static pressure gas radial bearing based on piezoelectric shunt damping, and belongs to the technical field of static pressure gas bearings. Comprising a bearing shell, a bearing sleeve and a porous throttler which are arranged in the bearing shell in the axial direction, and a piezoelectric shunt damping module which is arranged between the bearing shell and the bearing sleeve and is axially fixed through a check ring. Wherein the piezoelectric shunt damping module is formed by connecting a force amplifier, a piezoelectric ceramic stack, a pre-tightening pressing block, a pre-tightening screw, a steel ball and a locking nut; the force amplifier is of an axisymmetric structure composed of two trapezoidal connectors, four thin-wall beams and two end plates. The piezoelectric shunt damping module is arranged in the bearing, vibration mechanical energy of the bearing sleeve is converted into electric energy through the piezoelectric ceramic stack, and net damping is provided for the bearing by consuming the electric energy generated by the piezoelectric ceramic stack through the external shunt resonance circuit, so that the amplitude of the rotor relative to the bearing at a high rotating speed is reduced; the high-speed stability of the bearing is improved.

The invention provides a flexible ceramic nanofiber membrane as well as a preparation method and application thereof. The preparation method comprises the following steps: adding polyvinyl alcohol into water, and heating and stirring in a water bath kettle until the polyvinyl alcohol is completely dissolved to obtain a polyvinyl alcohol solution; stirring the precursor material, an acid catalyst and water until hydrolysis to obtain oxide substrate sol; mixing a polyvinyl alcohol solution with the oxide substrate sol, adding a pore forming agent, uniformly mixing, and performing electrostatic spinning to obtain a precursor composite nanofiber membrane; and calcining the precursor composite nanofiber membrane at high temperature to obtain the flexible ceramic nanofiber membrane. According to the prepared flexible ceramic nanofiber membrane, fibers are in a shape similar to sugarcoated haws on sticks, the porosity is high, based on the charge property of the flexible ceramic nanofiber membrane, in the water-induced power generation process, counter ions are generated on the solid-liquid contact surface in an electrolyte aqueous solution and a ceramic fiber channel, and the water-induced power generation efficiency is improved. Good flexibility and stability are shown through flowing potential driving, continuous power generation can be achieved, and high output voltage is obtained.

The invention discloses a high-power-supply-rejection-ratio band-gap reference circuit with base current correction and high-order temperature compensation, which comprises a pre-voltage-stabilizing circuit module used for generating and outputting internal power supply voltage according to external power supply voltage, the internal power supply voltage is supplied to the band-gap reference core circuit module so as to isolate transmission of power supply noise to reference output; the high-order temperature compensation circuit module is used for generating nonlinear compensation current according to the bias voltage; the band-gap reference core circuit module is used for generating current in direct proportion to absolute temperature, reference voltage and reference output voltage based on internal power supply voltage and feeding back the reference voltage to the pre-voltage-stabilizing circuit module to serve as bias reference; and the base current correction circuit module is used for sampling the base current of the bipolar transistor in the band-gap reference core circuit module. On the premise that the circuit structure and the power consumption are reasonable, the temperature drift of the reference voltage is reduced, and the power supply suppression capability is improved.

The invention provides an integrated plate type metal-supported solid oxide fuel cell or electrolytic tank and a power supply, and relates to the technical field of fuel cells. The battery or the electrolytic tank comprises a metal supporting body, an insulating layer, an electrochemical reaction unit and a conductive piece. The metal support body has a first surface, a second surface and a peripheral surface which are hermetically connected. And a flow channel for reaction medium materials is arranged between the first surface and the second surface. And the metal support body is provided with a plurality of ventilating through hole areas communicated with the flow channel of the reaction medium material. An electrochemical reaction unit is arranged on at least one surface of the metal supporting body, an insulating layer is arranged between the metal supporting body and the electrochemical reaction unit, and the through holes of the ventilation through hole area penetrate through the insulating layer. The conductive part is used for connecting the electrochemical reaction unit. The problems that a solid oxide fuel cell is difficult to seal, slow in start and stop, poor in thermal shock resistance, low in mass power density, low in output voltage and the like are effectively solved, and the solid oxide fuel cell is particularly suitable for portable power supplies, aircrafts, other mobile carrier power supplies and other scenes.

According to the superconducting quantum interference device based on the Josephson junction and the preparation method of the superconducting quantum interference device based on the Josephson junction, the manufacturing process of the Josephson junction is improved, and an organic cleaning process is added in the photoresist stripping process, so that the side wall formed by continuous stacking can be removed, the quality of a subsequently deposited film is improved, and the performance of the superconducting quantum interference device is improved. The SQUID output curve is not easy to generate resonance, and the yield of the SQUID batch preparation process is improved; on the basis of a traditional SQUID, each Josephson junction is additionally connected in series or in parallel with one Josephson junction to form the SQUID with four Josephson junctions, so that a larger output voltage modulation depth is obtained, the SQUID has higher sensitivity, lower noise and a larger linear range, a circuit is not prone to losing lock, and the SQUID has the advantages of being simple in structure, low in cost and high in reliability. A lengthy offset line does not need to be added, the problems of magnetic flux crosstalk, poor magnetic flux coherence and the like do not need to be worried about, and the layout structure design is simpler and more convenient.

The invention relates to a magnetism-force-electricity coupling energy collector and method based on an asymmetric torsional mode, and belongs to the technical field of energy collection. The asymmetric bending beam piezoelectric transducer comprises a piezoelectric plate, an asymmetric bending beam structure, a mass block and a fixing screw rod, the polarization direction of the piezoelectric plate is arranged along the thickness direction, electrode coatings are arranged on two side surfaces of the piezoelectric plate along the thickness direction, the electrode coatings on the two side surfaces are defined as a bonding electrode surface and a leading-out electrode surface respectively, the asymmetric bent beam structure comprises a main beam, a long limb and a short limb which are arranged in an integrated structure, and the main beam is arranged on the main beam. A fixing hole is formed in the middle of the main beam, the bonding electrode faces are bonded and fixed to the main beam through epoxy resin and distributed on the left side and the right side of the fixing hole, the leading-out electrode faces lead out electrical signals through wires, and the mass block is fixed to the asymmetric bent beam structure through magnetic force. One end of the fixing screw rod is connected with the fixing hole, and the fixing screw rod is installed on the rigid base.

The present invention discloses an axial load testing method, which is applied to an axial load testing system. The axial load testing system comprises a strain acquisition device, a welding terminal and a strain gauge module. The strain gauge module comprises at least two groups of strain gauges, each group of strain gauges comprises two strain gauges, the directions corresponding to the two strain gauges are vertical directions, and at least two groups of strain gauges are symmetrical structures. The strain acquisition device is connected to each strain gauge through a welding terminal, and a target bridge circuit is formed between the welding terminal and the strain gauge module through a preset connection method. The method comprises: when it is detected that the axial load testing system is connected to a component to be tested, obtaining measured strain data corresponding to the strain gauge module through the strain acquisition device; determining target strain data of the component to be tested according to the measured strain data corresponding to the strain gauge module; and generating an axial load corresponding to the component to be tested according to the target strain data and pre-acquired parameters of the component to be tested.

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.

The application discloses a thermoelectric pile structure for calibrating a far ultraviolet ultraviolet detector based on MEMS, which comprises a silicon substrate, a support layer, an absorption layer, a thermocouple pair, aluminum wires, aluminum electrodes and a single crystal silicon material structure on the silicon substrate. The double-layer thermocouple stacking structure is adopted to improve the device duty ratio, more thermocouple pairs can be laid in the case of keeping the size of the one-layer structure unchanged, and the response rate of the detector is improved. The circular structure conforms to the distribution trend that the temperature is radially diffused from the center of the absorption layer to the periphery in a decreasing manner, the hot end of the thermocouple pair can be closer to the area with higher temperature, the temperature of the hot end of the thermocouple pair is more uniform, and the response rate of the detector is improved. The radiant energy of the far ultraviolet ultraviolet radiation source is converted into an output thermoelectric electromotive force, a mathematical model of Fourier's law and the Seebeck effect is established for calculation, and the heat flux density of the far ultraviolet ultraviolet radiation source is measured.

The invention belongs to the technical field of flexible piezoelectric sensors, and relates to a carbon felt-hydrogel composite piezoelectric sensor and a preparation method thereof. The sensor comprises a piezoelectric sensing layer, a cross-scale dual-network hydrogel layer, an electrode layer, a leading-out wire and a packaging layer, the two cross-scale dual-network hydrogel layers are arranged on the upper side and the lower side of the piezoelectric sensing layer in a stacked mode to form a sandwich structure. The cross-scale dual-network hydrogel layer is an elastic hydrogel material formed by compounding a carbon fiber felt skeleton and a molecular-level network polymer, and the molecular-level network polymer penetrates through the interior and the surface of the carbon fiber felt skeleton and is formed by cross-linking and curing; the number of the electrode layers is two, and the two electrode layers are arranged on the outer sides of the two cross-scale dual-network hydrogel layers in a stacked mode respectively. The lead-out wire is electrically connected with the electrode layer; the packaging layer wraps the outer side of the electrode layer. According to the sensor, the mechanical property, the conductivity and the stability of the flexible piezoelectric sensor can be improved.

The utility model discloses an ionic wind generation measuring device which comprises a base, one end of the base is provided with a flat plate, the flat plate is provided with a needle-shaped electrode, the base is provided with a wind speed probe and a cylindrical electrode, the cylindrical electrode is located between the wind speed probe and the needle-shaped electrode, and the needle-shaped electrode and the cylindrical electrode are used for generating plasma wind in a high-voltage experiment. The wind speed probe is used for measuring the wind speed of the cylindrical electrode air outlet. The beneficial effects of the utility model are that the needle-shaped electrode is fixed on the flat plate, the needle-shaped electrode is right opposite to the center of the cylindrical electrode, the needle-shaped electrode is connected with a high-voltage experiment power supply, the cylindrical electrode is grounded, the power supply is turned on, and the output voltage of the high-voltage power supply is slowly increased, so that the needle-shaped electrode and the cylindrical electrode generate plasma to form plasma wind; and finally, the wind speed of the air outlet is measured through a wind speed probe, so that the method can be used for gas discharge research under a needle-cylinder electrode.

The invention discloses a flexible methanol fuel cell and a humanoid robot power supply system, and relates to the technical field of methanol power generation, the flexible methanol fuel cell comprises a flexible bag body, the two ends of the flexible bag body are provided with a liquid inlet and a liquid outlet, and the side surface is provided with a mounting opening; the membrane electrode is sealed in the mounting opening; the anode diffusion layer and the cathode diffusion layer are respectively fixed on the anode side and the cathode side of the membrane electrode, and fine wire meshes are fixed on the anode diffusion layer and the cathode diffusion layer. A humanoid robot power supply system comprises a flexible methanol fuel cell, a DMFC energy management system and an energy storage cell, and the flexible methanol fuel cell serves as a power generation unit and is integrally distributed on the outer surface of a robot. According to the flexible methanol fuel cell disclosed by the invention, the whole cell body has good bending, twisting and tensile elasticity, can adapt to various irregular surfaces and dynamic deformation scenes, and is light in weight and thin in thickness. The flexible methanol fuel cell is used as a power generation skin to be integrated on the robot, the mass energy density is improved, and the endurance working time is prolonged.

The present invention relates to a structure for improving the weak piece of the end plate of a fuel cell stack, comprising a power generation cell, a pseudo cell, an end plate, an insulating plate and a current collecting plate, wherein the width of the plate flow channel of the power generation cell is L1, the depth is H1, and the width of the flow channel ridge is R1, and the width of the plate flow channel of the pseudo cell is L2, the depth is H2, and the width of the flow channel ridge is R2, wherein L2=1.1-1.3L1, H2=1.1-1.3H1, and R2=0.7-0.9R1. Compared with the prior art, the present invention provides pseudo cells without power generation function at both ends of the fuel cell stack as transmission channels for reaction gas and cooling water, which is conducive to discharging excess liquid water generated during the operation of the stack, and at the same time improves the phenomenon of low voltage of single cells at both ends of the end plate of the stack, thereby improving the output performance, cold start performance and durability of the stack.

The present application belongs to the technical field of electromagnetic detection, and relates to an electromagnetic detection multi-level current emission system and control method for highland environment. The control method comprises calculating a load model impedance; analyzing an MFPWM control process to determine optimal control parameters for an emission spectrum intensity maximization optimization target; and MFPWM optimization control: by adjusting the frequency and amplitude of each modulation signal component, directional power distribution, independent regulation and control of each frequency component are realized. The present application adopts a multi-level topology structure, which realizes high output voltage while reducing switching voltage stress, avoids the cost increase and high system complexity caused by the dependence of traditional H-bridge inverters on high power supply voltage; in combination with multi-frequency pulse width modulation optimization control, the spectrum energy can be flexibly configured, the high-frequency component of the emission signal is enhanced, and the spectrum energy utilization rate and signal-to-noise ratio are improved; the high dynamic range ground impedance changes can be accurately tracked, and the needs of deep geological electromagnetic detection in extreme environments are met.

The invention provides a switching power supply protection control device and application. The switching power supply protection control device comprises a fault signal voltage sampling circuit, a short-circuit protection circuit based on a pulse width modulator and a soft start circuit. One end of the fault signal voltage sampling circuit is connected with an output voltage Vo of the switching power supply, the other end of the fault signal voltage sampling circuit is connected with a COMP end of a pulse width modulator in the short-circuit protection circuit based on the pulse width modulator, and the other end of the short-circuit protection circuit based on the pulse width modulator is connected with one end of the soft start circuit; the other end of the soft start circuit is connected with the SS end of the pulse width modulator in the short-circuit protection circuit based on the pulse width modulator; the short-circuit protection control device based on the TL431 remarkably improves the stability, reliability and safety of a switching power supply system, has wide application prospects and practical value, and solves the problems that a traditional switching power supply protection circuit is poor in protection precision, complex in circuit and single in function.

The invention discloses a radio frequency power supply circuit and electronic equipment. The radio frequency power supply circuit comprises a power supply module, a first inductor, a power tube, a peak value detection module and a control module. The first end of the first inductor is connected with the power module; the first end of the power tube is connected with the second end of the first inductor and coupled with a load, the second end of the power tube is grounded, and the control end of the power tube is configured to input a radio frequency signal; the peak detection module is connected with the first end of the power tube, and the peak detection module is configured to obtain the peak voltage of the first end of the power tube; the control module is connected with the peak value detection module and the power supply module, and the control module is configured to control the power supply module to reduce the output voltage when the peak value voltage is larger than a first voltage threshold value. Through the above mode, the mismatch risk of the power tube can be effectively reduced, and the overvoltage protection of the power tube can be realized.

The invention provides a compact broadband frequency insensitive rectifier for collecting electromagnetic energy in an environment, and aims to face the field of wireless power supply Internet of Things equipment. The invention finds that the double-branch LC series-parallel structure has a key characteristic that the impedance is insensitive to frequency change. By fully utilizing the characteristic, a simple matching network is designed to realize broadband performance. Through a simulation and measurement combined method, the operation effectiveness of the proposed topological structure is verified, and the design of the broadband rectification circuit is successfully realized. The rectification circuits of three different matching networks are compared, and the optimal circuit is determined. Under the input of 8 dBm and the load of 1.2 k omega, the peak power conversion efficiency of the rectifier reaches 74.75%. And the efficiency is kept above 60% at the relative bandwidth of 81.1%. Under the load condition of 0.9 k omega, the relative bandwidth with the efficiency of more than 60% is kept at 81.1%, and the bandwidth with the efficiency of more than 50% is expanded to 100%.

The present invention provides a controller for improving the accuracy of a switching power supply, which improves the accuracy of the switching power supply by adjusting a reference voltage or adjusting a reference current, and includes an error amplifier, a reference voltage source generation module, a reference signal adjustment module, an externally programmable memory, and a duty cycle modulation module. The controller can be used not only in a primary feedback switching power supply to improve its output voltage accuracy, but also in a secondary feedback, non-isolated switching power supply, etc., to improve their output voltage to a higher accuracy than the corresponding traditional technology.

The invention discloses a fully differential d-class power amplifier circuit, which comprises an error correction input circuit, a triangular wave generation circuit, a PWM (Pulse-Width Modulation) modulation and digital jitter elimination circuit, a full-bridge driving and filtering output circuit and a feedback network, the input of the error correction input circuit is connected with the output of the feedback network, the outputs of the error correction input circuit and the triangular wave generation circuit are respectively connected with the input of the PWM modulation and digital dithering elimination circuit, and the output of the PWM modulation and digital dithering elimination circuit is connected with the input of the full-bridge driving and filtering output circuit. And the output of the full-bridge driving and filtering output circuit is connected with the input of the feedback network. The low-frequency signal amplification circuit has the advantages of high power utilization efficiency, high expansibility, high output power, low distortion degree, low noise and the like when amplifying low-frequency signals.

The application provides an organic lithium-iodine battery based on a two-electron transfer mechanism and a manufacturing method and application thereof. The organic lithium-iodine battery comprises a positive electrode, a negative electrode and an organic electrolyte. The positive electrode active material used by the positive electrode comprises iodide and / or bromide, and the organic electrolyte comprises an organic solvent containing a chlorine-containing additive. The organic lithium-iodine battery uses iodide as the positive electrode active material, thereby avoiding the instability and safety hazards existing in the current I2 positive electrode. The organic solvent containing the chlorine-containing additive is used as the organic electrolyte, and excellent electrochemical performance is provided through a two-electron conversion mode. Compared with a traditional lithium-iodine battery, the organic lithium-iodine battery has higher capacity, energy density and higher output voltage. In addition, the organic lithium-iodine battery has excellent low-temperature insensitivity. At-25 DEG C, the battery realizes 2500 cycles at the cost of 20% capacity decay, and can still work stably at a low temperature of-30 DEG C.

The invention discloses a magnetic coupling type bimodal piezoelectric energy collecting device. The device is composed of a base, a piezoelectric cantilever beam, a mass block and a permanent magnet. Each piezoelectric cantilever beam comprises two piezoelectric patches and is connected with an external load in series; the mass block is fixed at the tail ends of the two piezoelectric cantilever beams to form an L-shaped structure; one permanent magnet is fixed to the free end of the horizontal piezoelectric cantilever beam, the other two permanent magnets are fixed to the base, and the magnets are arranged in a magnetic repulsion mode. According to the designed structure, the inherent frequency of each mode can be effectively reduced, the bimodal characteristic enables the device to present two voltage peak values in a low-frequency environment, and the output voltage under a broadband is improved. Besides, interaction between the magnets is utilized, so that the device shows nonlinear dynamic characteristics, the operation frequency band of the device is further widened, the energy collection efficiency is improved, and the application range of the piezoelectric energy collection device is expanded.

The present invention discloses a photovoltaic energy storage charging device, which relates to the field of photovoltaic energy storage technology. The photovoltaic energy storage charging device comprises a battery box, a photovoltaic panel and a charging pile body, wherein the charging pile body comprises a positive line and a negative line, and a charging head is arranged on the charging pile body, and a hollow annular cover is fixedly connected in the battery box, and the annular cover is filled with a coolant, and a plurality of storage batteries are arranged in the annular cover, wherein the storage batteries comprise a positive pole and a negative pole, and a plurality of heat exchange holes arranged in an array are opened on the side wall of the battery box. The photovoltaic energy storage charging device can adjust a plurality of storage batteries in parallel or in series according to different charging scenarios, and is more convenient and quick to use, and makes the charging effect better; the storage battery can be cooled by air and liquid, so that the cooling efficiency of the storage battery is higher and the effect is better, and the storage battery can be better kept warm under low temperature conditions, so as to ensure its use effect and life.

The invention provides a transmission speed automatic adjustment control circuit. The three detection branches detect whether there are transmitted articles at three positions on the transmission line and send out position detection signals when detecting the articles. The three speed regulation branches comprise resistors R1, R2 and R3 and relays K1, K2 and K3, electromagnetic coils of the relays receive position detection signals sent by the detection branch, and normally open contacts are closed when receiving the position detection signals. The output branch comprises a resistor R4 and a resistor R5, and a control signal output port is arranged between the resistor R4 and the resistor R5. On one hand, the conveying speed can be automatically and gradually increased when article conveying begins, it can be guaranteed that articles are stably placed, it can be guaranteed that the articles are conveyed at a high speed when the number of the conveyed articles is the maximum, and the conveying efficiency is improved; on the other hand, the transmission speed can be automatically and gradually reduced when transmission is about to be finished, the transmission mechanism can stably stop at a low speed when transmission is finished, and mechanical structure damage caused by high-speed sudden stop is avoided.

The present invention belongs to the field of high-power pulse technology, and specifically discloses a high-power pulse generator, a pulse power supply, and a method for generating high-power pulses. The pulse generator includes a main body composed of a multi-stage pulse module connected step by step, and the pulse module responds to a driving signal to generate an output waveform. The pulse module includes: an energy storage capacitor having a first end and a second end; a plurality of equipotential solid-state switches, the solid-state switch includes a driving end, a first power end and a second power end, and the second power end is connected to the second end of the energy storage capacitor; a first isolation device is connected in series between the first end of the energy storage capacitor and the first power end of the solid-state switch; a second isolation device is connected in series between the second end of the energy storage capacitor of the pulse module and the second power end of the solid-state switch of the adjacent pulse module. The beneficial effect of the present invention is that it can generate a high-power pulse output with high voltage, large current, fast edge, and wide pulse.

The invention relates to a stepped magnetostrictive vibration energy collector with a compensation block. The collector comprises an L-shaped beam, a bias magnet, a stepped magnetostrictive composite structure and a compensation block, a stepped magnetostriction composite structure is fixed in the middle of the inner side of a vertical beam of the L-shaped beam; the bias magnet is placed at the far end of the horizontal beam of the L-shaped beam; the stepped magnetostriction composite structure comprises a stepped plate, a magnetostriction layer and a pickup coil; and the magnetostrictive layer is a magnetostrictive sheet. The device is better in mechanical performance, lower in cost and high in mechanical-magnetic conversion efficiency, and miniaturization and light weight of the device are facilitated; higher voltage application can be output under the condition of smaller amplitude, the prospect is wider, and the requirement of production economy is better met.

This invention provides a ceramic proton exchange membrane for microbial fuel cells and its preparation method, comprising the following steps: mixing clay, an inorganic modifier, and an organic modifier to obtain a solid powder; the inorganic modifier is alumina and silicon dioxide, and the organic modifier is selected from one or more of wheat flour, biochar powder, straw powder, and bamboo powder; the solid powder is ball-milled, granulated, pressed into sheets, and calcined to obtain the ceramic proton exchange membrane. This invention addresses the problems of poor mass transfer performance and low power generation performance of traditional pure clay ceramic membranes. Using clay as the matrix material, and through specific inorganic and organic modifiers, the pore structure of the material is adjusted. A novel ceramic proton exchange membrane is then prepared through ball milling, granulation, pressing, and calcination. This membrane has low manufacturing cost, good proton transport efficiency, and extremely low internal resistance. When applied to microbial fuel cells, it can achieve higher output voltage and more stable power generation performance.

The invention relates to the technical field of new energy and energy conservation, in particular to a double-separation-source multi-level converter and a power supply system, and the converter mainly comprises a double-separation-source converter unit and a switched capacitor unit which are arranged in parallel. The switched capacitor unit is used for controlling the charging process or the discharging process of the direct-current capacitors corresponding to the capacitor switches at different positions according to the state of the accessed direct-current power supply and load requirements, and outputting different levels of voltages; the double-separation-source converter unit is used for accessing two direct-current power supplies; comprising two inverter loops, and the inverter loops are arranged corresponding to a direct-current power supply and used for rectifying and boosting different levels of voltage to generate alternating-current voltage meeting the load requirement. The converter can adapt to various different working scenes and load requirements, and the flexibility and adaptability of the system are improved.

The invention discloses a 10KV voltage transformer, and belongs to the technical field of transformers. Comprising an insulating shell, a winding assembly and a driving assembly installed in a supporting assembly, and the insulating shell wraps the outer side of the winding assembly; the winding assembly comprises an iron core, a plurality of secondary windings wound on the iron core and a primary winding wound on the iron core; the secondary winding comprises a first winding, a second winding and a third winding, the A end of the first winding is connected with the a end of the wiring end installed on the supporting assembly, and the N end of the first winding is installed at the output end of the driving assembly. The output end of the driving assembly controls the N end of the first winding to move and is connected with the A end of the second winding or the third winding, and meanwhile controls the N end of the second winding or the third winding to be connected with the n end of the wiring end, so that the first winding and the second winding or the third winding are connected in series to adjust voltage.

The present application relates to a kind of low-frequency environment suitable for many kinds of wobble power generation device, belong to new energy field.By shell, lid, outer wheel shaft, rocker, frequency modulation spring, frequency modulation block, circuit board, rotor, PZT vibrator and coil are constituted, the wire frame is equipped on the two side walls of shell, another two side walls are equipped with slot;Outer wheel shaft is constituted by outer shaft, outer small wheel and outer large wheel;Rocker is constituted by swing axle, swing disc and swing rod, swing axle is equipped with shaft plane;Rotor is constituted by magnetic cylinder and inner wheel shaft, and inner wheel is equipped on inner wheel shaft;Lid is installed on shell, and the plugboard of lid is implanted in slot and is formed with shell installation hole;Coil is installed on wire frame, and rotor is installed in wire frame cavity;Outer shaft and swing axle are installed on shell side wall, and outer small wheel and swing disc constitute outer transmission pair, and outer large wheel and inner wheel constitute inner transmission pair;Frequency modulation block is installed on rocker, and frequency modulation spring is arranged between rocker and shell;PZT vibrator is arranged between shell and lid and rocker;When rocker swings, coil cuts magnetic line to generate electricity, and PZT vibrator is bent to generate electricity.