73results about How to "Reduce the required power" patented technology

The utility model discloses an ultra-thin parking spot lock which comprises a driving mechanism, a parking spot lock body and a parking spot lock body. The turning plate can rotate, and the turning plate and the guide plate are arranged side by side in the width direction of the turning plate; wherein a cavity is formed in the turning plate and / or the guide plate, a power module is assembled in the cavity, and the power module is electrically connected with the driving mechanism; the turning plate is provided with a driving axis and a rotating axis which are parallel, the length of the turning plate extends along the rotating axis, the width value of the turning plate is set as a, the distance between the driving axis and the rotating axis is not larger than a / 2, and the driving mechanism drives the turning plate to rotate around the rotating axis at the driving axis. According to the ultrathin parking spot lock, the cavity is formed in the turning plate or the guide plate, the power module is assembled, and the size of a machine box is reduced. The driving mechanism drives the turning plate to rotate at the driving axis, the needed power is small, the displacement of a driving part is small, the size of the driving mechanism is reduced, and the ultrathin design is achieved.

The invention discloses a six-shaft simple electric control speed change clutch sheet type electric driving system which comprises a power input mechanism, a speed change assembly and a two-shaft power output mechanism, and a power input shaft, a speed reduction shaft assembly, a reverse gear shaft mechanism and the two-shaft power output mechanism of the speed change assembly are arranged on the periphery of a main shaft in the circumferential direction. And the structure is simple and reliable, the expansibility is excellent, and various functional modules such as human-controlled reversing, inertial reversing and active upshift and downshift according to real-time power can be flexibly expanded according to actual requirements. The motor can always and efficiently keep working in the current high-efficiency area according to the change of the driving intention, a multi-parameter control strategy with the consciousness and intention of people as priority is achieved, and harmony and unification of people, vehicles, roads and running resistance / running loads are achieved. The important scientific and engineering technology common key problem of traction / driving force-running resistance / load efficient and accurate balance control is solved.

A hydrogen energy storage power station control system adopts a layered structure, comprehensively judges from electricity price information, renewable energy output, environment temperature and hydrogen storage tank state data through a reinforcement learning model, selects a hydrogen production, power generation or standby mode, and sets power targets of an electrolytic cell and a fuel cell; the middle layer uses an optimization algorithm to refine power distribution, the lower layer executes a power instruction through an industrial control algorithm, and an independent safety guarantee layer is set to monitor indexes such as hydrogen concentration, pressure and temperature. In the optimization process of the system, energy consumption and equipment life loss of an electrolytic bath and auxiliary equipment are considered at the same time, full-life-cycle economy is achieved, the economy of a hydrogen energy storage power station is improved, and the service life of key equipment is prolonged.

The invention relates to the technical field of photovoltaic materials, in particular to a light conversion agent, a packaging adhesive film and a photovoltaic module. The preparation method of the light conversion agent comprises the following steps: heating and dissolving compound powder as shown in a formula I in a first solvent, cooling and crystallizing, and collecting a solid; the first solvent is prepared from at least one of ethyl acetate, N-methyl-2-pyrrolidone and acetone. The fluorescence quantum efficiency of the light conversion agent provided by the invention at room temperature can reach up to 97.12%, and compared with the existing light conversion agent, the light conversion agent provided by the invention has the advantages of high fluorescence quantum efficiency, good ultraviolet resistance and the like. According to the photovoltaic module prepared by adopting the packaging adhesive film disclosed by the invention, the power of the module can be remarkably improved, and the power attenuation of the module after ultraviolet radiation can be reduced.

The invention discloses an iron-modified molybdenum disulfide-based piezoelectric catalytic material and a preparation method and application thereof.The preparation method comprises the following steps that ammonium molybdate and thiourea are mixed with water in proportion, and then a mixed solution is subjected to a hydrothermal reaction; drying the solution after the hydrothermal reaction to obtain molybdenum disulfide; molybdenum disulfide and a ferric iron salt solution are mixed and stirred, and then a reducing agent is added for reduction; and collecting and drying the reduced solution to obtain the iron-modified molybdenum disulfide-based piezoelectric catalytic material. A piezoelectric catalysis system of molybdenum disulfide can be more effectively utilized to generate hydrogen peroxide in situ, and Fenton-like reaction is carried out, so that pollutants are better removed.

Systems and methods for signal transmission may include a wireless communication device receiving first information in signaling from a wireless communication node, the first information indicating a mode of at least one physical random access channel (PRACH) or downlink (DL) signal transmission. The wireless communication device may transmit a PRACH signal corresponding to the DL signal index to the wireless communication node in a random access (RA) occasion determined by the mode.

The invention relates to a positive pole piece and a preparation method thereof, and a secondary battery comprising the positive pole piece. The positive pole piece comprises a positive current collector; the positive electrode material layer is arranged on the surface of the positive electrode current collector, the positive electrode material layer comprises a positive electrode active material and a functional polymer shown in the formula (1) # imgabs0 #, and n is equal to 10-10000. The functional polymer captures active oxygen released from the positive electrode under a high-temperature condition, so that the reaction activity of the full-electricity positive electrode and the electrolyte is reduced, the heat release power and heat release amount of the full-electricity positive electrode material and the electrolyte are greatly reduced, and the safety of the battery is improved.

The invention discloses a five-shaft simple electric control speed change clutch plate type electric driving system which comprises a power input mechanism, a speed change assembly and a two-shaft power output mechanism, and the speed change assembly comprises a main shaft, a speed reduction shaft assembly, a frame clutch plate mechanism and an elastic mechanism. The system is simple and reliable in structure and excellent in expansibility, can flexibly expand various functional modules such as human-controlled reversing, inertial reversing and active upshift and downshift according to real-time power according to actual requirements, and meets the design requirements of platformization and modularization. Moreover, the motor can always work efficiently in the current high-efficiency area according to the change of the driving intention, a multi-parameter control strategy with the consciousness and intention of people as priority is realized, harmony and unification of people, vehicles, roads and running resistance / running load are realized, and the driving safety is improved. The important scientific and engineering technology common key problem of traction / driving force-running resistance / load efficient and accurate balance control is solved.

The present invention discloses a reactive compensation capacity allocation method, apparatus and device of a wind-photovoltaic-energy storage station, the method includes: calculating a maximum stored-energy active power and a maximum wind-power active power under different actual photovoltaic active power conditions; calculating a station reactive loss and a station reactive power corresponding to each actual photovoltaic active power condition based on an actual photovoltaic active power, the maximum stored-energy active power and the maximum wind-power active power under each actual photovoltaic active power condition; determining a reactive compensation demand under each actual photovoltaic active power condition by using a difference between the station reactive loss and the station reactive power under each actual photovoltaic active power condition; and determining a reactive compensation capacity by using a maximum reactive compensation demand of the reactive compensation demand under each actual photovoltaic active power condition, so as to allocate an idle capacity of a stored-energy field area according to the reactive compensation capacity. The technical solutions of the present invention improve the accuracy of the reactive compensation capacity allocation of the wind-photovoltaic-energy storage station.

The invention discloses a photoelectric sensor system conversion efficiency calibration system and method based on a reverberation chamber, and belongs to the technical field of photoelectric sensor conversion efficiency calibration, the system comprises an electric wave reverberation chamber, a transmitting antenna, a reference antenna and a photoelectric field sensor system; the photoelectric field sensor system is composed of a photoelectric sensor, a laser source, a photoelectric detector, a polarization maintaining optical fiber and a single-mode optical fiber. In the calibration process, the reference antenna and the photoelectric sensor system are used as receiving ends respectively, receiving power at different stirring positions in the reverberation chamber is sampled to obtain two groups of transfer functions, and the total efficiency of the photoelectric sensor system is determined by comparing the two groups of transfer functions under the condition that the radiation efficiency of the reference antenna is known. The conversion efficiency of the photoelectric sensor system is obtained by combining the relation among the power, the field intensity and the total efficiency in the free space; and the effective averaging of the incident direction and the polarization state is realized by using the uniform and isotropic electromagnetic field characteristics of the reverberation chamber.

Provided are an energy conversion system, an over-temperature operation control method thereof, and a control apparatus (00), comprising: in accordance with the operating temperatures of at least two power modules, determining an over-temperature module and at least one non-over-temperature module; obtaining a derated operating power and a power derating difference value for the over-temperature module, and, in accordance with the power derating difference value, determining at least one increased-rating operating power, wherein the increased-rating operating power corresponds one-to-one to a non-over-temperature module; on the basis of the at least one increased-rating operating power, determining whether the system satisfies a preset no-derating operating condition; if the system satisfies the preset no-derating operating condition, then driving the over-temperature module to operate in accordance with the derated operating power, and driving the non-over-temperature module(s) to operate in accordance with the increased-rating operating power. By reducing the operating power of the over-temperature module, the temperature thereof is lowered, and by increasing the operating power of a non-over-temperature module, the overall power of the system can be kept unchanged, which is beneficial to improving system safety performance and power generation.

The invention relates to the technical field of photovoltaics, in particular to an EPE adhesive film, a preparation method thereof and a photovoltaic module. The EPE adhesive film comprises a first EVA layer, a POE layer and a second EVA layer which are arranged in sequence, the first EVA layer and the second EVA layer comprise EVA resin, a cross-linking agent, an assistant cross-linking agent, an antioxidant, a light stabilizer, a silane coupling agent and a surfactant; the POE layer comprises POE resin, a cross-linking agent, an assistant cross-linking agent, an antioxidant, a light stabilizer and a silane coupling agent; the surfactant comprises at least one of an alkyl glycoside surfactant, an alkyl betaine surfactant and an alkyl sodium sulfonate surfactant; the carbon atom number of alkyl in the surfactant is 6-24. In the adhesive film, the EVA layer and the POE layer have excellent bonding performance, under the condition that the POE thickness is low, a corresponding assembly can meet reliability testing, the cost of the adhesive film is reduced, and the bonding performance of the adhesive film is guaranteed.

The invention relates to a renewable energy local consumption method based on an isolated micro-grid, and the method comprises the steps: constructing a layered distributed cooperative control architecture for the micro-grid, enabling a local control layer to collect the operation environment parameters and performance parameters of power generation equipment and energy storage equipment in real time, and enabling a central control layer to carry out the multi-time-scale energy optimization configuration according to the real-time equipment parameters; the real-time power of the micro-grid is balanced by responding to instantaneous changes of renewable energy sources and loads in an ultra-short-term optimization manner; an energy distribution plan of the next day is formulated through short-term optimization; power generation equipment and energy storage configuration are optimized in a medium-and-long term manner, and then global optimization decision making is performed to obtain an energy scheduling plan among the regions; and the regional coordination layer performs cooperative control on equipment in the region based on the energy scheduling instruction. Compared with the prior art, the method has the advantages that the special environment and technical problems of high-cold and high-altitude areas are solved, the local consumption efficiency of renewable energy in the isolated micro-grid is remarkably improved, the wind curtailment rate and the light curtailment rate are reduced, and the stability and the reliability of the micro-grid system are enhanced.

The present invention belongs to the technical field of intelligent control of range hoods, and discloses a range hood outlet wind pressure prediction method, system, storage medium and processing terminal. The method uses an experimental method to obtain different reference speeds and corresponding reference currents, wind pressures and proportional factors of the range hood under standard working conditions; collects data of the current period through a sensor or a control panel, calculates the speed relative deviation and current relative deviation; substitutes them into a fuzzy calculation model to obtain the wind pressure deviation rate; calculates the public flue wind pressure value according to the wind pressure deviation rate, proportional factor and reference wind pressure value; substitutes the calculated public flue wind pressure into the control panel, and the control panel controls the motor speed in real time according to the public flue pressure value. The present invention uses the predicted public flue wind pressure value as a parameter to adjust the speed of the fan in real time, reduces the useless power and noise of the range hood in use while maintaining the air volume, and improves the energy utilization efficiency.

This utility model relates to a lifting device with dynamic gravity compensation, including a support frame, a transmission lifting device, a sliding frame sliding on the support frame, a fixed pulley group set on the top of the support frame, a tension spring for relieving pressure on the lifting device, a movable pulley group set on the tension spring, and a steel rope for pulling the sliding frame. The lifting device is set inside the support frame; the working end of the lifting device is connected to the sliding frame; a connecting piece is set on the side wall of the support frame; one end of the tension spring is set on the connecting piece; the other end of the tension spring is set on the movable pulley group; the fixed pulley group includes several sets of first pulley bodies; the movable pulley group includes several sets of second pulley bodies; the steel rope is wound around the first pulley bodies and the second pulley bodies in sequence. This invention solves the problem that the transmission structure of traditional lifting devices is relatively simple, often using a single steel wire rope or chain to directly connect the motor and the lifting platform, which cannot effectively amplify the stroke of the steel wire rope.

The present application relates to the technical field of air extractor, particularly relates to a direct drive improvement device of oil pumping unit; including tower body, platform, driver, shaft coupling, drum, crown assembly, belt, oil pumping rod, counterweight box and liquid cooling mechanism, the liquid cooling mechanism includes motor shell cooler, the platform is fixedly arranged on the top of the tower body, the driver, crown assembly and motor shell cooler are all fixedly arranged on the platform, the drum is rotatably arranged on the platform and located on one side of the driver, the driver and drum are drivingly connected through the shaft coupling, the crown assembly is located on one side of the driver, shaft coupling and drum, the belt is slidably arranged on the drum and crown assembly, the oil pumping rod and counterweight box are respectively fixedly arranged at two ends of the belt, the oil pumping rod is located on one side of the tower body, and the counterweight box is located below the platform; energy consumption is significantly reduced, frequent maintenance is not needed, and mechanical noise of the traditional reduction gearbox is eliminated.

The application provides a kind of self-adaptive temperature control system and method of pump laser for guaranteeing output power stability, and relates to the technical field of laser temperature control.The method comprises the following steps:step S1: calculating the current temperature difference and the real-time change rate of pump laser output optical power;step S2: judging whether the current temperature difference exceeds the temperature difference threshold;step S3: confirming whether the real-time change rate of the current pump laser output optical power exceeds the output optical power change rate threshold;step S4: if the real-time change rate of the current pump laser output optical power exceeds the output optical power change rate threshold, the current temperature control target is issued to the temperature control execution module and the temperature control is started;step S5: repeating the above steps S1 to S4.The system comprises a processor, a detection module and a temperature control execution module.Based on this, the application solves the problem that the existing TEC temperature control system and method cannot adapt to environmental temperature changes, thereby making it difficult to effectively guarantee the stability of pump laser output power.

The invention relates to a motor mounting shell, a driving structure and electrical equipment, and the motor mounting shell comprises a shell side wall which is formed by extending a shell top wall from the edge of the shell top wall in the same direction, and the shell side wall surrounds the shell top wall in the circumferential direction so as to form a motor accommodating cavity together with the shell top wall. The top wall of the shell is provided with a top heat dissipation opening communicating with the motor containing cavity and the external atmosphere, and the side wall of the shell is provided with a front heat dissipation opening communicating with the motor containing cavity and the external atmosphere. The side wall of the shell is further provided with at least one side heat dissipation opening, and the side heat dissipation opening communicates with the motor containing cavity and the external atmosphere. Compared with the prior art that only the top and the front part of the motor mounting shell are provided with the heat dissipation ports, the motor mounting shell provided by the invention is provided with the heat dissipation ports at the top, the front part and the side part, so that the heat dissipation area is increased, the heat dissipation capability of the motor mounting shell is enhanced, and the heat dissipation efficiency is improved on the premise that the cost, the power and the noise of the motor are not increased. And the temperature of the motor is effectively reduced.

The invention provides a novel single-stage current source type direct current power flow controller, and aims to solve the problem of power flow regulation and control between distributed renewable energy sources and a direct current power grid. The controller reduces the loss of the transformer through a partial power flow mode, has the ZCS soft switching capability, and reduces the power conversion loss. The topological structure is composed of a transformer primary side half-bridge, a transformer and a secondary side half-bridge, and power flow regulation and control are achieved by adjusting output voltage. The controller can effectively work during bidirectional tidal current flow, and is suitable for occasions with large line resistance change. Simulation verification shows that the controller has excellent adjusting capability and efficiency in a Plecs environment, and powerful support is provided for flexible control of a direct current power grid.

The invention discloses a coating device for producing and processing a lithium ion battery diaphragm, which comprises a concentric-square-shaped drying oven, a first coating assembly is arranged on one side of the concentric-square-shaped drying oven, a second coating assembly is arranged in the middle of the concentric-square-shaped drying oven, an unwinder is arranged on one side of the first coating assembly, and a winder is arranged on one side of the second coating assembly. A film is sequentially fed into the first coating assembly and the second coating assembly through the unwinding device so that the surfaces of the two sides can be continuously coated, a plurality of first guide rollers and a plurality of second guide rollers are arranged in the concentric-square-shaped drying oven, and the first guide rollers and the second guide rollers are spirally distributed. The first guide roller and the second guide roller are symmetrically distributed in a double-helix mode, bidirectional spiral winding and multi-layer winding of the film in the concentric-square-shaped drying oven are achieved through turning of the guide rollers, the air temperature in all positions in the concentric-square-shaped drying oven is evenly distributed through the heaters evenly distributed in a double-helix mode, and the consistency and uniformity of the drying effect are guaranteed. The drying quality is improved.

The invention is suitable for the technical field of fluid material stirring, and provides a stirring device for preventing a high-viscosity solid-liquid mixture, the stirring device comprises a stirring tank, the stirring tank comprises a stirring barrel and a material storage cavity arranged in the stirring barrel, and a partition plate and a stirring shaft body are arranged in the material storage cavity; the partition plate comprises a spiral plate arranged around the material storage cavity, and the stirring shaft body comprises a first rotating shaft and a second rotating shaft which are symmetrically arranged. The device solves the problem that the carbon nanotubes are easy to agglomerate during stirring due to higher viscosity of the carbon nanotubes, so that a solid-liquid mixture of the carbon nanotubes and a polymer solution is adhered. Especially in a high-concentration environment, the phenomenon is more obvious, and the effects that high-strength shearing force is generated in the horizontal direction and the axial direction in the stirring process through the spirally arranged blades and sawteeth on the blades, and meanwhile, the blades are matched with the spiral plate to guide flow, so that the adhesion probability of a high-viscosity mixture is reduced are achieved.

The application discloses a power battery full life cycle health state online correction method based on cloud edge cooperation and relates to the technical field of battery management. First, a unified multi-dimensional health state parameter group of the cloud end and the vehicle end is established, a limitation identifier is mapped and recorded at the single-body-module-pack level, and a vehicle-end health state initial value, a cloud-end health state estimated value and a confidence level are obtained respectively. Secondly, the cloud end defines a key control output index and constructs a control sensitivity relationship, solves a recommended correction amount in combination with a risk cost constraint, generates a correction instruction package containing a recommended working condition window, a maximum step and a maximum change rate, and issues the correction instruction package. Finally, the vehicle end executes according to the working condition gate, performs shadow verification, smoothes and fuses, and updates the control parameters in linkage, monitors the deviation and safety events in the verification window, and reports the abnormal rollback; the method reduces display jump and power limit value fluctuation, reduces false positives, and improves caliber consistency and stability.

The present application relates to natural rubber primary processing equipment technical field, specifically to a kind of natural rubber crepe machine, including rack, transmission system, first roller group and second roller group along vertical series connection, roller cooling system, doctor system and discharge separation system.The first driving roller shaft end of first roller group is equipped with sprocket, is driven connection with second roller group by chain, so that a motor synchronously drives four roller operation, material is sequentially completed rough dehydration and fine dehydration from top to bottom.Four rollers are all hollow structure with spiral flow guide groove inside, and two ends hollow shaft head are connected into cooling system by three-section rotary joint formed by external connector, connecting shaft and internal connector, to form forced circulation cooling loop to control roller surface temperature.The present application is compact in structure, and single machine can realize continuous twice dehydration and automatic solid-liquid separation, suitable for natural rubber forest and rubber collecting station primary operation.

The invention discloses a large bidirectional reciprocating supercharger, which comprises a valve body, a piston cavity, a reversing valve cavity, a high-pressure oil duct, an oil inlet duct and an oil return duct are arranged in the valve body; the two high-pressure oil ports are formed in the valve body and both communicated with the high-pressure oil duct; the two high-pressure oil ports are distributed in the two axial sides of the piston cavity and communicate with the piston cavity. The piston is positioned in the piston cavity; the reversing valve is located in the reversing valve cavity and can reciprocate in the axial direction; the reversing valve is used for driving the piston to move in a reciprocating mode in the axial direction and supplying oil to the two high-pressure oil ports so that bidirectional pressurization can be conducted. The linkage design of the reversing valve and the piston is adopted, the reversing valve periodically reciprocates in the axial direction of the valve body, and the piston is directly driven to synchronously move; the piston alternately compresses the cavities on the two axial sides of the piston cavity under the action of the reversing valve, so that liquid can be compressed and output in two directions, continuous pressurization operation is achieved through a two-way compression mechanism, the flow conversion efficiency is improved, and output fluctuation is reduced.

The invention relates to the technical field of isotope production in nuclear power plants, and specifically discloses a fuel assembly for producing isotopes in a nuclear reactor, comprising an outer cladding, an upper seal, a lower seal, a mother material and a UO2 pellet block, wherein the outer cladding is a tubular structure, the upper seal and the lower seal are respectively arranged at two ends of the outer cladding, the mother material and the UO2 pellet block are both arranged inside the outer cladding, and the mother material and the UO2 pellet block are arranged in a nested manner; the invention compensates for the influence of the mother material absorbing neutrons on the reactivity of the fuel rod by adjusting the enrichment and size of the UO2 pellet block, greatly reduces the influence of the target on the reactivity and power peak factor of the nuclear power plant core, ensures that the thermal performance does not change significantly, and ensures the safety of the nuclear power plant; realizes the mutual independence of the UO2 fuel rod and the mother material rod, disassembles the mother material rod for producing isotopes after irradiation in the nuclear power plant and transports it to a hot chamber for separation and purification, greatly reduces the difficulty of separation and purification between the mother material and UO2.

The invention discloses a five-shaft simple electric control variable speed taper clutch type electric driving system which comprises a power input mechanism, a variable speed assembly and a two-shaft power output mechanism, and the variable speed assembly comprises a main shaft, a speed reduction shaft assembly, a taper clutch mechanism and an elastic mechanism. The system is simple and reliable in structure and excellent in expansibility, can flexibly expand various functional modules such as human-controlled reversing, inertial reversing and active upshift and downshift according to real-time power according to actual requirements, and meets the design requirements of platformization and modularization. Moreover, the motor can always work efficiently in the current high-efficiency area according to the change of the driving intention, a multi-parameter control strategy with the consciousness and intention of people as priority is realized, harmony and unification of people, vehicles, roads and running resistance / running load are realized, and the driving safety is improved. The important scientific and engineering technology common key problem of traction / driving force-running resistance / load efficient and accurate balance control is solved.

The utility model provides a battery device, a power utilization device and an energy storage device, and belongs to the technical field of batteries. The battery device comprises a box body, a heat insulation part and a plurality of single batteries, the box body comprises a protection part, a bottom wall and a side wall connected to the bottom wall, the bottom wall and the side wall define an accommodating area for accommodating a plurality of battery monomers, the protection part is connected to the outer side, deviating from the accommodating area, of the bottom wall, and a filling space is formed between the protection part and the bottom wall; at least one beam body is arranged in the box body, the beam body is connected to the inner side, deviating from the protection piece, of the bottom wall, the beam body is used for dividing the accommodating area into a plurality of sub-areas, and at least one battery monomer is accommodated in each sub-area; the heat insulation component comprises a first heat insulation part and a second heat insulation part, the filling space is filled with the first heat insulation part, and the second heat insulation part is arranged between the beam body and the bottom wall. By arranging the first heat insulation part and the second heat insulation part, the heat insulation capacity of the battery device is improved, and the power and the cost of a heat management system of the battery device are reduced.

The invention discloses a thermal management system and a vehicle, and the thermal management system comprises a compressor which is provided with an exhaust port and an air inlet; the outdoor condenser is provided with a first inlet and a first outlet, and the first inlet is communicated with the exhaust port; the electric drive system comprises an electric drive direct cooling plate, the electric drive direct cooling plate is provided with a second inlet and a second outlet, the second outlet is communicated with the air inlet and the first inlet, and the second inlet is communicated with the first outlet; one end of the first pipeline is connected between the exhaust port and the first inlet, and the other end of the first pipeline is connected between the air inlet and the second outlet; the second pipeline and the third pipeline are connected between the first outlet and the second inlet in parallel, a refrigerant pump is arranged on the second pipeline, and a first electronic expansion valve is arranged on the third pipeline. According to the thermal management system, flexible switching between the two modes can be achieved according to the actual heat dissipation requirement of the electric drive system and the whole vehicle operation working condition.

The invention provides a gallium nitride-based semiconductor laser with a quantum tunneling hole injection layer, the quantum tunneling hole injection layer is arranged in the laser, and SIMS test Al ion strength or Al atom concentration distribution in the quantum tunneling hole injection layer has asymmetric double-S-type function distribution. A peak value region of valence band effective state density and a valley value region of hole mobility are formed in the quantum tunneling hole injection layer, and the peak value position of the valence band effective state density just corresponds to the valley value position of the hole mobility, so that a quantum tunneling region is formed, and diffusion, migration and hot electron emission of hole carriers are blocked. The hole tunneling probability of the layer is enhanced, hole carriers are made to jump and pass through the upper limiting layer and the upper waveguide layer in a quantum tunneling mode, hole wave function distribution and light field distribution injected into the active layer are regulated and controlled, the quantum recombination efficiency of the gallium nitride laser is enhanced, light absorption loss is reduced, and the threshold value and the lasing power of the laser are reduced; and the aging light attenuation of the laser is improved.

The invention discloses a high-efficiency multi-channel gallium nitride power amplifier, which comprises a common-stage low-power module, a channel switching module and a high-power high-gain module, and is characterized in that the common-stage low-power module is used for pre-amplifying a radio-frequency signal input from a signal input end of the amplifier to obtain a pre-amplified signal; the path switching module is used for switching a transmission path of the pre-amplified signal, and the transmission path comprises a first path where the high-power high-gain module is located and a second path for directly outputting the pre-amplified signal to the signal output end of the amplifier; the output end of the high-power high-gain module is connected with the signal output end of the amplifier, and the high-power high-gain module is used for amplifying the pre-amplified signal and then outputting the pre-amplified signal from the signal output end of the amplifier. The low-power branch is placed in front of the access switching module to serve as common input, an output switch is omitted, and the influence of insertion loss of the output switch on circuit efficiency can be avoided when signals are output from the high-power high-gain module at high power.