244results about How to "Increase output power" patented technology

The invention provides a fracturing pump truck driven by a turbine engine, which comprises an engine, a fracturing pump, pipelines and the like. A traditional large and heavy diesel engine is replaced by the turbine engine which is small in size, light in weight and high in power, the total output power of a single fracturing pump truck can be more than 4000hp under the requirements of limited integral vehicle weight. The fracturing pump truck driven by one turbine engine is equivalent to the fracturing pump truck driven by two traditional diesel engines, so that output power of unit operating area is improved, more labor and materials can be saved in transport and specific constriction operations of fracturing equipment, land requisition and operating area are reduced, and construction efficiency is improved. Further, the turbine engine can also use various gaseous and liquid fuels and is especially suitable for shale gas exploitation.

The invention discloses an intelligent charger with an output voltage changing function. The intelligent charger comprises a processing unit, a power unit and an interface unit. The processing unit is connected with the power unit and the interface unit. The power unit is connected with the interface unit. The interface unit is connected with an external intelligent terminal. The processing unit conducts handshake and communication with the intelligent terminal through the interface unit and controls the output voltage of the power unit according to handshake and communication results so that the output voltage of the power unit can reach the requirements of the intelligent terminal. The intelligent charger can intelligently switch the output voltages according to the requirements of the intelligent terminal to charge the intelligent terminal and accelerate charging. The invention further discloses a charging method applied to the intelligent charger.

The invention discloses a local aluminum back surface field solar battery with two diaphanous faces. The aluminum back surface field solar battery comprises a silicon substrate, an emitting electrode, a front antireflection passive film, a front electrode, a back passive film, a back surface field and a back electrode, wherein the emitting electrode, the front antireflection passive film and the front electrode are arranged on the front face of the silicon substrate, and the back passive film, the back surface field and the back electrode are arranged on the back face of the silicon substrate. The back surface field is a local aluminum back surface field, a hole or a groove is formed in the back passive film, the area where the hole or the groove is formed is covered with linear aluminum paste, partial back passive film is reserved not to be covered with the aluminum paste, and the local aluminum back surface field is formed in the area where the hole or the groove is formed after sintering. The local aluminum back surface field is communicated with the back electrode. The back passive layer (film) of the solar battery is not completely covered with the aluminum paste, the battery can absorb part of incident light or scattered light on the back, the current of the battery and the current of components are increased, and therefore the photoelectric conversion efficiency of the battery and that of the components are improved. The invention further discloses a preparation method for the local aluminum back surface field solar battery with the two diaphanous faces.

A rotor of a motor includes a plurality of sets of permanent magnets 8a, 8b embedded in the rotor. Each includes a permanent magnet at an inner side and another permanent magnet at an outer side with a distance between them. Each permanent magnet 8a, 8b is formed like an arch projecting towards the center of the rotor. Magnetic flux flows easily through an interval between the permanent magnets at inner and outer sides, and the inductance in a q-axis is enlarged. Then, the reluctance torque is generated in addition to the magnet torque, and the motor has a high torque and a high output power.

The invention discloses a C/X dual-band microstrip antenna, and belongs to the technical field of antennas. The antenna adopts a dual-layer high-resistance silicon medium structure in which two frequency bands share a rectangular radiation patch; an upper layer of high-resistance silicon media bears a rectangular patch and an X frequency band feed line; an air cavity is etched on an upper layer of high-resistance silicon to reduce a composite dielectric constant of the high-resistance silicon; a lower layer of high-resistance media bear a C frequency band feed line; an X frequency band adopts microstrip coplanar feeding; and a C frequency band adopts slot coupling feeding. The C/X dual-band microstrip antenna or a C/X dual-band two-element microstrip antenna has the following advantages of: 1, singlechip and dual modes, simple structure and flexible design; 2, multiple frequencies; 3, miniaturization and light weight; and 4, integration. The C/X dual-band microstrip antenna can be widely applied to airborne point-to-point communication tools, such as satellite communications, control, guide and radars.

The invention discloses a charger, a terminal and a charging method. The charger comprises a transformer and an external charging chip, wherein the transformer is used for outputting a first electrical parameter to the external charging chip, and the external charging chip is used for transforming voltage of the first electrical parameter to obtain a second electrical parameter and outputting the second electrical parameter to a terminal to quickly charge the terminal. The terminal is matched with the charger in use. The terminal comprises a direct channel used for outputting the second electrical parameter input by the charger to a battery to quickly charge the battery. The problem that a terminal emits heat during charging and is low in charging speed is effectively solved. In the invention, when the circuits of the charger and the terminal are capable of fast charging, the charger directly inputs an electrical parameter required by the terminal to the terminal, which avoids the use of a charging chip built in the terminal, reduces the loss of current in the transmission process, improves the output power of the circuits and shortens the time for terminal charging.

The invention provides a tangential and radial resultant magnetic field embedded permanent magnet rotor driving motor, and belongs to the technical field of automobile motor electric appliances. The tangential and radial resultant magnetic field embedded permanent magnet rotor driving motor is composed of a front end cover, a rear end cover, a shell, a rotor and a stator. Pieces of rectangular permanent magnet steel are embedded into tangential rectangular grooves and radial rectangular grooves of a rotor iron core respectively. Due to the fact that the tangential and radial resultant magnetic field embedded permanent magnet rotor driving motor is of a rotor magnetic bypass structure, the problem that irreversible demagnetization is generated when the permanent magnet steel bears excessively-high temperature or the action of the armature reaction of an impact current can be effectively avoided, it is ensured that demagnetization does not happen on the permanent magnet steel, the magnetic field of the rotor of the driving motor is supplied by both the tangential magnetic field and the radial magnetic field, the magnetic field intensity is large, output power is high, an electro-magnetic winding is not required, power consumption is little, a carbon brush and a mechanical diverter are omitted, the failure rate is low, and the tangential and radial resultant magnetic field embedded permanent magnet rotor driving motor has the advantages of being high in efficiency and power density, compact in structure, reliable in work and the like.

The embodiment of the invention discloses an optical amplification device and an optical repeater, relating to the field of fiber-optical communication. For solving the problem of lower gain of signal light, a technical scheme provided by the embodiment of the invention is as follows: an optical coupler is connected with a first er-doped fiber which is connected with a combiner; the combiner is connected with a second er-doped fiber; the optical coupler is also directly connected with the combiner; the received input signal light is coupled with a part of the received pump light by the optical coupler, and the coupled input signal light and pump light is output to the first er-doped fiber; the rest part of the pump light is output to the combiner; and the signal light output by the first er-doped fiber and the pump light output by the optical coupler are coupled by the combiner. The embodiment of the invention is suitable for the field of the fiber-optical communication.

The invention provides a GaN-based multi-quantum well super light-emitting diode (SLED) with higher extraction efficiency and output power and a preparation method thereof, relating to a light-emitting diode (LED). The SLED is provided with a sapphire substrate on which a multi-layer heterostructure epitaxially grows; the multi-layer heterostructure is provided with a low-temperature GaN buffer layer, an N-type GaN electrode contact layer, an N-type AlGaN/GaN superlattice light limiting layer, an N-type GaN wave guide layer, an InGaN/GaN multi-quantum well active layer, a p-type AlGaN electron blocking layer, a p-type GaN wave guide layer, a P-type AlGaN/GaN superlattice light limiting layer, a p-type GaN layer and a p-type InGaN/AlGaN superlattice electrode contact layer; an n-type electrode is arranged on the N-type GaN electrode contact layer and a p-type electrode is arranged on the p-type InGaN/AlGaN superlattice electrode contact layer.

The power generation system includes first and second power generating units, each of which converts DC energy into RF energy and transmits the power wirelessly, a combining section, which combines the respective outputs of the power generating units together, and an oscillation phase control section, which reduces the phase difference between the RF energies supplied from the two power generating units and. The oscillation phase control section controls a phase difference between the RF energies supplied from the oscillators and belonging to the first and second power generating units and, respectively, so that first and second RF energies supplied from the first and second power generating units and are in phase with each other when combined together by the combining section.

The invention discloses an underwater rotary type piezoelectric power generation device, and belongs to the technical field of new energy sources. The underwater rotary type piezoelectric power generation device is particularly suitable for converting collected kinetic energy generated by flowing of water particles in rivers or oceans into electric power. The underwater rotary type piezoelectric power generation device is composed of a driving component and a vacuum transduction component. In the driving component, an impeller is fixed at one end of a transmission shaft, the transmission shaft is positioned inside a left cavity through a bearing, and the transmission shaft and a driving wheel synchronously rotate. A plurality of left cavity permanent magnets are evenly arranged on the periphery of the driving wheel in an array mode, a left end cover is fixed on the left side of the left cavity, and a sealing ring is fixed on the left end cover through a gland. The vacuum transduction component comprises a first kind of vacuum transduction component and a second kind of vacuum transduction component. The underwater rotary type piezoelectric power generation device together has three structure styles. The underwater rotary type piezoelectric power generation device is used in water and can be effectively prevented from being damaged by extreme storm waves. Meanwhile, the output power of the underwater rotary type piezoelectric power generation device can be increased through the vacuum sealing cavity. The underwater rotary type piezoelectric power generation device is particularly suitable for collecting the kinetic energy generated by the flowing of the water particles in the environments such as the rivers and the oceans.

The invention relates to the field of power generation, power transformation or power distribution, in particular to a rapid charging method and a rapid charging device of a portable power source. A power adapter is connected with the portable power source by virtue of a USB (Universal Serial Bus) data line. The method comprises the following steps that A, a microprocessor of the power adapter comprises a voltage waveform received in the USB data line with a voltage waveform stored in the microprocessor and then outputs different voltages; B, a microprocessor of the portable power source judges input voltage change of a MicroUSB socket, and adopts different charging modes. The used power adapter and the portable power source are matched, the used USB data line is a standard data line, and the power adapter can be a direct current power adapter or an alternating current power adapter. The rapid charging method and the rapid charging device have the beneficial effects of short charging time and reduced waiting time of a user.

The invention discloses a 1550 nm long wavelength vertical-cavity surface-emitting laser with an InGaAsN/AlGaInAs QWs as an active layer. The laser is characterized in that the InP-based InGaAsN/AlGaInAs QWs and AlGaAsSb/AlAsSb are used as DBR materials of the active layer. The length of a resonant cavity of the laser is 1 lambda so that the better light emitting effect can be achieved. In addition, the performance of the surface-emitting laser is further improved by the adoption of a double-layer oxidation limiting layer structure, single-mode output power is improved, and 1550 nm long wavelength transmission is achieved. The laser comprises a P-type DBR layer, the active layer, an N-type DBR layer, a substrate, a SiO2 insulating layer, a transparent conducting medium ZnO, a P-type electrode and an N-type back electrode. The whole structure achieves lattice matching in material, so that the epitaxy technology can be widely applied. The vertical-cavity surface-emitting laser is simple in manufacturing technology, good in repeatability and easy to popularize.

The embodiment of the invention provides a DET power supply system of a satellite. The DET power supply system is used for improving the output power of a solar cell array of the DET power supply system of the satellite at the initial stage. The power supply system comprises a solar cell array, a power supply control and distribution unit and a storage battery pack. The power supply control and distribution unit comprises an S3R shunt regulator, an MEA and a reference voltage module. The solar cell array is used for converting the obtained solar energy into electric energy; the S3R shunt regulator is used for carrying out shunt control according to the differential signal; the MEA is used for carrying out amplification and integration according to the difference value between the referencevoltage and the bus voltage obtained through control of the S3R shunt regulator to obtain a differential signal and outputting the differential signal to an S3R shunt controller; the reference voltage module is used for generating the reference voltage; the storage battery pack is connected with a bus and used for charging and discharging according to shunt control; the reference voltage module is specifically used for generating different target reference voltages; and the S3R shunt controller is specifically used for carrying out control according to the target differential signal control to obtain different target bus voltages.

A method for controlling an adaptor to charge a battery includes: determining whether the adaptor is capable of providing a predetermined charging current for the battery; sensing an output voltage of the adaptor and an output current of the adaptor; and controlling the adaptor to adjust the output current and the output voltage according to the sensed output voltage and the sensed output current when the adaptor is not capable of providing the predetermined charging current.

A method for producing an electrode assembly, including a porous active material molded body, a solid electrolyte layer covering the surface of the active material molded body including the inside of each pore of the active material molded body, and a current collector in contact with the active material molded body exposed from the solid electrolyte layer, includes obtaining the active material molded body by heating a porous body formed using an active material at a temperature of 850° C. or higher and lower than the melting point of the active material, and forming the solid electrolyte layer by applying a liquid containing a constituent material of an inorganic solid electrolyte to the surface of the active material molded body including the inside of each pore of the active material molded body in a structure body including the active material molded body, and then performing a heat treatment.

A method of generating high-power laser output in the 1100 to 1500 um spectral region having a controllable linewidth. A Raman amplifier comprised of one or more nested pairs of fiber Bragg grating cavities tuned to the 1^st, 2^nd, . . . N−1^st order Stokes wavelengths is seeded with both the desired Nth order Stokes output wavelength and the corresponding zeroth-order Stokes pump wavelength. As the pump wavelength propagates through the apparatus, it is sequentially converted to the 1^st, 2_nd, . . . N−1^st order Stokes wavelengths in the nested fiber Bragg grating cavities. The desired Nth order Stokes output wavelength is then amplified by the N−1^st Stokes order as it propagates through the nested fiber Bragg grating cavities. The linewidths of various Stokes orders can be controlled through adjusting resonant bandwidths of the fiber Bragg grating cavities by offsetting, through heating, the reflectivity bandwidths of each pair of cavity gratings.

The invention discloses a hybrid dynamic system with combined cycle of internal combustion engine-stirling engine, belonging to the fields like energy source and power, wherein the system comprises a stirling auxiliary power subsystem; the subsystem comprises a heat exchanger, a stirling engine, a generator connected with the stirling engine and a controller connected with the generator. One end of the controller is connected with a rechargeable battery and other end thereof is connected with an electric motor. The heat exchanger is configured in a smoke silencer of the internal combustion engine heat-power transferring subsystem, or placed before a smoke catalyst purifying device. The internal combustion engine heat-power transferring subsystem and the stirling auxiliary power subsystem share one coolant heat radiator. The hybrid dynamic system has characteristics of a simple and contract structure, a high fuel use ratio and so on. The hybrid dynamic system can also enhance the output power of the internal combustion engine and improve the energy saving and emission reduction performances for vehicles.

The embodiment of the invention provides a high-power linear power amplifier, which comprises a signal conditioning circuit, which is used for processing an input signal and outputting the processed signal; a power amplification circuit, which is used for receiving the signal processed by the signal conditioning circuit, conducting power amplification processing on the signal processed by the signal conditioning circuit and outputting the amplified power signal; a microprocessor circuit, which is used for controlling the operation of the signal conditioning circuit and the power amplification circuit and setting the parameters of the signal conditioning circuit, wherein the power amplification circuit comprises a differential amplification circuit, which is used for amplifying the signal processed by the signal conditioning circuit; a buffer amplification circuit, which is used for again amplifying the signal output by the differential amplification circuit; and a parallel push-pull amplification circuit, which is used for conducting power amplification processing on the signal amplified by the buffer amplification circuit and outputting the amplified power signal. By using the power amplifier, higher frequency bandwidth and output power can be obtained.

The invention discloses a femtosecond optical parameter oscillator for a synchronous pump of an all-solid-state mode-locking Yb laser, wherein the all-solid-state mode-locking Yb laser is high in output power, is compact in structure, and is low in cost. Coherent femtosecond near-intermediate infrared laser is achieved through combining with the technology of femtosecond optical parameter oscillation of the synchronous pump, wherein the signal wavelength of the laser can be continuously tuned in a range from 1.4 microns to 1.8 microns and the free wavelength of the laser can be continuously tuned in a range from 2.5 microns to 4.2 microns. Compared with a conventional femtosecond optical parameter oscillator based on a mode-locking Ti-sapphire laser pump, the femtosecond optical parameter oscillator provided by the invention is simple in structure, is stable in performance, is high in output power, and is low in cost.

A lithographic apparatus includes an illumination system configured to provide a beam of radiation, a support configured to support a patterning device, a substrate table and a projection system. Furthermore, the lithographic apparatus includes a plurality of EUV sources for providing EUV radiation to the illumination system and distribution means which are arranged to convert the EUV radiation from each of the EUV sources into an intermediate beam of radiation. The intermediate beam of radiation is directed from the distribution means in a first direction by a mirror surface. The distribution means further comprise a rotationally driven mirror arrangement, the axis of rotation being non-parallel to the mirror surface.

An oppositely arranged swing piston type vacuum pump used for automobiles comprises a pump body, a power source, an eccentric shaft and a pair of pistons, wherein an external end cover is arranged on each external end surface of the pump body, a cylinder body is formed in the pump body and comprises two internal end surfaces arranged relative to the two external end surfaces, and an internal end cover is arranged on each internal end surface. An exhaust hole and an air inlet pipe connector which are communicated with the cylinder body are also arranged on the surface of the pump body. The eccentric shaft and the pair of pistons are all arranged in the cavity of the cylinder body, the eccentric shaft is driven to rotate by the power source, the pair of pistons are arranged at an angle of 180 degrees in between, each piston comprises a piston head and a connecting rod, a seal ring is arranged on the periphery of the piston head, one end of the connecting rod is connected with the piston head, and the other end of the connecting rod is connected with the eccentric shaft, the piston heads of the pistons are respectively opposite to the internal end covers, and the piston heads and the internal end covers are respectively provided with a check valve. The oppositely arranged swing piston type vacuum pump has the advantages of no noise which can be generated by friction of vanes, high working efficiency and long continuous working period.

The invention provides an impeller of a centrifugal fan and the centrifugal fan containing the impeller of the centrifugal fan. The impeller of the centrifugal fan comprises a wheel hub, vanes and a wheel cap, wherein the vanes are installed between the wheel hub and the wheel cap, the vanes comprise a backward long vane and a backward short vane, and the length of the flow direction of the long vane is greater than the length of the flow direction of the short vane; and moreover, the long vane and the short vane are in alternate distribution between the wheel hub and the wheel cap, and the inlet diameter of the short vane is greater than the inlet diameter of the long vane. According to the impeller of the centrifugal fan and the centrifugal fan containing the impeller of the centrifugal fan, the problems of lower pneumatic efficiency and larger energy consumption which are brought by the structure of a traditional centrifugal impeller can be solved.

A modulated oscillator power amplifier (MOPA) type random fiber optic laser device belongs to a random fiber optic laser device system which uses optical fiber as a random laser gain medium. After pump light is coupled into the laser gain medium, Rayleigh backward scattering occurs in the optical fiber due to refractive index in-homogeneity of the optical fiber, and simultaneously the pump light provides gain to Rayleigh scattering light along the optical fiber, and therefore backward Rayleigh scattering light is amplified to form random lasers. The random fiber optic laser device system has the advantages that another short high-gain optical fiber is placed in front of the laser gain medium, and the backward Rayleigh scattering light continues to be amplified after being amplified by Raman. Accordingly, the random fiber optic laser device system is of an MOPA type random fiber optic laser device amplification structure, and furthermore the structure can improve output power of the random fiber optic laser device and reduce threshold power of the pump light. Additionally, the system can achieve double-pass amplification of the pump light, and improve the use ratio of the pump light.

A single-transverse-mode VCSEL device with array structure and the fabrication method thereof. The single-transverse-mode VCSEL device with array structure comprises a plurality of light-emitting windows in a 1-D or 2-D array arrangement, and thereby provides high output power, low resistance, and a broad operating current range.

A connector with embedded charging integrated circuits mainly has an insulating housing, an insulating base, a plurality of connecting terminals, a PCB, a charging IC, and a plurality of forwarding terminals. A tongue portion extends outward from one side of the insulating housing, a plurality of terminal slots are disposed in the tongue portion. The connecting terminals, the forwarding terminals and the charging IC electrically connect with the PCB. The insulating base is to carry the PCB, and the connecting terminals are accommodated in the terminal slots while the insulating base assembles with the insulating housing. While the connector receives electrical energy provided by the motherboard of an external device, the charging current provided by the motherboard is transmitted to the charging IC through the forwarding terminals, the charging current processed and improved by the charging IC is output via the connecting terminals to speed up the charging.

An improved quantum cascade laser, the improvement comprising a longitudinally non-uniform dielectric waveguide. The waveguide includes a longitudinally straight section and a longitudinally tapered section. The length of the tapered section is between 5% and 50% of the total cavity length. The tapered section tapers at a taper angle from the facet width to the ridge width. The taper angle is smaller than the delineation angle of the waveguide.

The invention discloses an ultraviolet LED element and a fabricated method of AlGaN base sapphire substrate, relates to the technical field of microelectronics and mainly solves the problem of low emergent light efficiency. The ultraviolet LED element comprises a low-temperature AlN nucleating layer, a high-temperature AlN nucleating layer, an intrinsic AlGaN epitaxial layer, an n-AlGaN barrier layer, an active zone, a p-AlGaN barrier layer, a low Al component p-type AlGaN layer, a p-type GaN cap layer, and a window zone arranged at the p-type GaN cap layer, which are sequentially arranged from top to bottom. The ultraviolet LED element etches the p-AlGaN cap layer until the p-AlGaN with low Al component by a drying method to form the column emergent light window, and then etches the p-AlGaN cap layer until the p-AlGaN with low Al component by a wetting method so as to change the column emergent light window into a similar hemispheric window, can make the material surface of the window be coarsened while increasing the emergent pore diameter of the window, and greatly improves the power and the efficiency of emergent light. The invention has simple process, good repetitiveness and high reliability, and can be used to occasions of water treatment, medical treatment and biomedicine, and the white light illumination.

The invention discloses a piezoelectric static composite-type low-frequency vibration energy collector which comprises a mass block, a PVDF film, a flexible variable capacitor and a silicon substrate. The flexible variable capacitor comprises a PDMS flexible cavity, a PDMS carbon nano tube upper electrode and a PDMS carbon nano tube lower electrode, the PDMS carbon nano tube upper electrode and the PDMS carbon nano tube lower electrode are located on the upper surface and the lower surface of the cavity respectively. The PVDF film is arranged on the PDMS carbon nano tube upper electrode of the flexible variable capacitor, and the PDMS carbon nano tube lower electrode of the flexible variable capacitor is fixed to the silicon substrate. The mass block is used for reducing work frequency of a device. According to the energy collector, an MEMS transducer can obtain large output power and high energy conversion efficiency in a low-frequency vibration environment; the energy collector is simple in structure, easy to manufacture, small in size and capable of operating in the low-frequency environment and has high energy conversion efficiency in an environment vibration range.

The invention discloses a large power fiber laser with inner cavity frequency doubling, comprising a fiber laser resonant cavity and an inner cavity double-frequency system, wherein the fiber laser resonant cavity comprises at least one pair of cavity mirrors to form the resonant cavity; the resonant cavity is provided with at least one group of high power pump light sources, at least one fiber combiner which couples the pump light into active fiber to form population inversion, at least one signal wavelength selector, and at least one section of large mode field double-cladding polarization-maintaining rare earth doped fiber; the inner cavity double-frequency system comprises at least one frequency doubling crystal, at least one reflector, and at least one dichroic mirror, wherein a laser beam passes through the frequency doubling crystal and is output by the dichroic mirror. According to the inner cavity frequency doubling large power fiber laser, double-cladding large mode field fiber is adopted to increase the output power of near infrared fiber laser; by means of inner cavity frequency doubling, the conversion efficiency of double-frequency is substantially increased; by means of the polarization maintaining fiber, the fiber near infrared laser output polarization direction is made to be consistent with that of the frequency doubling crystal and stable double-frequency output is obtained.