55results about How to "Strong drive" patented technology

To provide a spherical roller which is capable of fully rotating when moving on a rough road surface with a small contact area and which produces no obstacle to the movement in other portions.The present invention comprises a spherical roller in a globular form, a housing on the undersurface of which an opening in a circular form is provided in such a way that the spherical roller is projected in a horizontal down direction, a support roller having rotatable contact with an upper side portion of the spherical roller within the housing, and a drive roller which is arranged in the housing and driven by a drive motor to rotate the spherical roller in a direction at an angle of 90 degrees different from the direction in which the support roller rotates from immediately above for friction drive, thereby driving the spherical roller to move the housing.

A method and a buffer for storing energy and assisting power for an electric automobile belong to the field of electric automobiles. The method and the buffer are characterized in that a spring is used for storing energy output by a driving motor spindle, and a middle transition shaft is arranged between the driving motor spindle and a terminal output shaft. During initial rotation of the driving motor spindle, under the effect of the middle transition shaft, the spring can be contracted and then releases energy, and the terminal output shaft rotates fast. The energy-storage spring is used for storing the initial rotation energy of a motor shaft, and when the energy stored in the spring and driving energy of a motor exceed resistance of the automobile, the energy storage spring releases energy so that output power can be greatly improved instantly, starting is fast, and no large current outputs. The service life of electric components is prolonged. Due to the fact that difference of power of the initially pressed spring and power of the spring pressed to the end is large, compression and releasing of the spring are sufficient to enable the transmission to be soft. Drivers feel comfortable and can feel soft acceleration and strong starting during a driving period.

The present invention provides a dual-clutch automatic transmission and a transmission control method thereof, capable of meeting acceleration requirements of a driver even if a required gear is not ready. A transmission control device (3) of the dual-clutch automatic transmission (1) comprises: a current gear detection part (111); a required gear operating part (112); an accelerator stepping-on detection part (114); a gear-shift progressing operating part (115) used for operating a gear-shift progressing of a first or second gear-shift mechanism during the process that the gear is required to be shifted when the stepping-on of the accelerator is detected; and a driving gear selection control part, wherein, when the gear-shift progressing is greater than a preset gear-shift change threshold, the driving gear selection control part enables the clutch corresponding to the required gear which is ready through the first or second gear-shift mechanism to engage to drive, when the gear-shift progressing is less than the preset gear-shift change threshold, the driving gear selection control part enables the clutch corresponding to the current gear which is ready through the first or second gear-shift mechanism to engage to drive.

The invention discloses a multifunctional super-powerful permanent-magnet drive motor with the automatic torque increase and decrease function, the power generation function and the charging function, belongs to the technical field of permanent-magnet motors, and mainly provides a permanent-magnet motor for a vehicle. The multifunctional super-powerful permanent-magnet drive motor with the automatic torque increase and decrease function, the power generation function and the charging function is mainly characterized in that inner layer shell bodies with different diameters and with outer end open are arranged in an outer shell, stator core winding bars which are attached to the inner wall of the outer shell and the inner walls of the inner layer shell bodies serve as stators, a main power shaft is provided with a main shaft magnetism isolation layer liner, main shaft integral rotor magnetic steel bodies and rare-earth permanent magnet stripes, layer integral rotor magnetic steel bodies are arranged between inner layer shell bodies, and between each inner layer shell body and the outer shell respectively, integral precision casting magnetism isolation layer liners are arranged on the inner walls of the layer integral rotor magnetic steel bodies respectively, layer rotor rare-earth permanent magnet stripes are installed in the integral precision casting magnetism isolation layer liners respectively, and the main power shaft is provided with tool driving wheels for vehicle and ship auxiliary equipment. The multifunctional super-powerful permanent-magnet drive motor with the automatic torque increase and decrease function, the power generation function and the charging function has the advantages of increasing driving force of climbing, starting and accelerating power torque, and is mainly applied to automobiles, bullet trains, ships and the like.

The invention discloses a straight knife edge wire cutting mechanism applied to a peeling-wire machine, which consists of a driving device and a knife rest, wherein the driving device is provided with a cylinder, a cylinder fixing frame and a mounting fixing frame; and the driving device mainly uses the cylinder fixed on the panel of the peeling-wire machine as a power source. The knife rest is provided with a stator, a rotor, a knife blade set, a spring set and a fixing frame; the knife blade set is arranged in the stator, the knife edge of the knife blade keeps off from a wire hole III inside the stator under the action of the reaction force of the spring set, and the knife blade moves towards the wire hole III under the action of the rotary pushing action force of the rotor so as to achieve the wire cutting effect. The straight knife edge wire cutting mechanism applied to a peeling-wire machine has the advantages of accurate travel range, adjustable travel range, large driving force, high peeling speed, no damage to a cable core, stable performance, long service life, simple structure and low cost.

The invention relates to a dehumidifying and drying heat pump system fused with a compressor driving type quasi-loop heat pipe, which comprises a refrigerant circulating flow path and an air flow path, and the refrigerant circulating flow path comprises a compressor, a condenser, a condensation reheating section, a throttle valve and a refrigerant flow path of an evaporator which are connected in sequence; the dehumidifying and drying heat pump system integrating the compressor driving type quasi-loop heat pipe further comprises an evaporation pre-cooling section connected into the refrigerant circulating flow path. The air flow path comprises an evaporation pre-cooling section, an evaporator, a condensation reheating section and a first air branch of a condenser which are connected in sequence, the evaporation pre-cooling section is used for pre-cooling air return, and the condensation reheating section is used for reheating air return. Compared with the prior art, through the effect of the compressor driving type quasi-loop heat pipe, heat exchange of air fluid in front of and behind the evaporator is achieved, useless cooling effect sensible heat carried by air at an inlet of the evaporator is reduced, the proportion of latent heat corresponding to dehumidification in the total refrigerating capacity is increased, and therefore the dehumidification amount is increased, and the dehumidification energy efficiency is improved.

The invention provides an air conditioner indoor unit, an air conditioner, a control method of the air conditioner and a storage medium. The air conditioner indoor unit comprises an air outlet cavityand a vortex ring generation part; the air outlet cavity is provided with an air inlet end and an air outlet end opposite to the air inlet end, and the air passing area of the air outlet end is smaller than that of the air inlet end; and the vortex ring generation part is arranged on the side, away from the air outlet end, of the air inlet end, and the vortex ring generation part can periodicallydrive airflow to be blown out through an air outlet cavity. According to the air conditioner indoor unit provided by the invention, the vortex ring generation part can periodically drive air in the air outlet cavity in the air inlet direction, namely, the vortex ring generation part disturbs the air in the air outlet cavity in the air inlet direction, the air blown out from the air outlet end forms vortex ring airflow, and vortex air supply is achieved.

The invention discloses a high-strength electromagnetic object splitting device. The high-strength electromagnetic object splitting device comprises a main hollow shell. A connecting plate structure is arranged on the side face of the bottom of the main hollow shell, wherein the connecting plate structure and the main hollow shell are of an integrated structure. Acting force between electromagnetism and a permanent magnet is utilized, power initial driving is achieved, and under cooperation of a main spiral spring, the rapid and effective splitting action can be achieved. The device conducts driving under the action of a plurality of electromagnetic elements, so that the power strength, the drive intensity and practicability are high; meanwhile, the device is provided with a bottom objectelastic clamping and fixing mechanism, and the object fixing function can be achieved on the premise that a split object does not influence the splitting work; in addition, the device is provided witha multi-electromagnetic-element power drive mechanisms, the powerful thrust can be generated on the circumference face of a driven object, and accordingly the power drive strength is enhanced; and furthermore, the device is provided with a permanent magnet driven component drive mechanism, the magnetic field generated by electromagnetism can be converted into power, and accordingly power drive isconducted.

The invention discloses a high-kinetic-energy electromagnetic hammer block. The high-kinetic-energy electromagnetic hammer block comprises a bottom supporting base plate. Through the principle of electromagnetism and the principles that like charges repel and opposite charges attract, electric energy can be converted into field intensity and then converted into kinetic energy, the energy loss is low, strong thrust can be generated, and the high-efficiency hammering function is achieved; the high-kinetic-energy electromagnetic hammer block is low in overall weight and convenient to move, and isprovided with an annularly-arrayed electromagnetic field intensity generating mechanism, the field intensity is generated through the principle of electromagnetism, annularly-arrayed field intensitycan be generated, and the driving force intensity is high; in addition, the high-kinetic-energy electromagnetic hammer block is provided with a spherical structure limiting-type universal rotation connecting mechanism which can achieve connection of parts without influencing the rotating effect at a certain angle between the two parts and adopts active connection; and in addition, the high-kinetic-energy electromagnetic hammer block is provided with a reverse threaded structure longitudinal height adjusting-type connecting mechanism, the adjusting effect on the longitudinal height can be achieved through the principle of reverse threads, thus specific hammering position selecting is conducted on different objects, and the adaptability is high.

The invention discloses an axial continuous shearing strain piezoelectric fiber composite material and a preparation method thereof. The axial continuous shearing strain piezoelectric fiber compositematerial is composed of multiple piezoelectric ceramic fibers, a high-molecular polymer and two flexible interdigital electrodes, and the piezoelectric fibers polarized in the thickness direction andthe high-molecular polymer are alternately arranged in parallel; and the flexible interdigital electrodes are compounded on the upper sides and the lower sides of the piezoelectric fibers and the high-molecular polymer, the upper flexible interdigital electrode and the lower flexible interdigital electrode are in mirror symmetry, the electrode finger parts of the flexible interdigital electrodes are perpendicular to the axial direction of the piezoelectric ceramic fibers, and the piezoelectric ceramic fibers are continuous in the axial direction. The axial continuous shearing strain piezoelectric fiber composite material has certain flexibility and is continuous in stress and strain in the axial direction of the piezoelectric ceramic fibers, the driving capacity of the piezoelectric fibercomposite material is enhanced, and a large bending strain exists in a shearing direction; in addition, the axial continuous shearing strain piezoelectric fiber composite material is prepared by adopting a cutting-filling method, a technological process is simple, cost is low, and product stability is good.

The invention discloses mildew-proof glass glue and a preparation method thereof and relates to the technical field of glass processing. The mildew-proof glass glue is prepared from raw materials as follows: 10-20 parts of dichloromethane, 15-25 parts of methyl silicone, 5-7 parts of polyacrylate, 8-10 parts of polyurethane, 4-8 parts of hydroxyl silicone, 3-5 parts of a plasticizer, 5-7 parts of methyl polytetrafluoroethylene, 6-8 parts of calcium carbonate, 6-8 parts of titanium dioxide, 3-5 parts of benzoyl peroxide, 6-8 parts of silicon dioxide and 2-4 parts of a modifier. The mildew-proof glass glue has the benefits as follows: the technological procedure is concise, the proportion of raw materials is reasonable, the raw materials are cheap and easy to obtain, the product has very high adhesion force and lasting flexibility, the mildew-proof effect is improved due to addition of methyl silicone and oxidized polyethlene wax, and the mildew-proof glass glue is application to occasions where mildew is easily bred and has strong repelling and killing functions on various bacteria.

The invention discloses a high-temperature solid ceramsite sand electric heating experiment device for supercritical carbon dioxide power generation. A high-power frequency modulation impact power supply provides power to the high-temperature solid ceramsite sand electric heating experiment device. In the high-temperature solid ceramsite sand electric heating experiment device, a variable frequency motor is fixed above a first channel steel fixing support, and a ceramsite storage device is fixed below the first channel steel fixing support. A first knife switch is fixed on the ceramsite storage device, and the other end of the first knife switch is connected with a positive electrode. A shaft of the variable-frequency motor is connected with a stirrer. Nine heating pipes are arranged in parallel between a pair of electrodes connected with an output end of the high-power frequency modulation impact power supply; a thermocouple arranged on a heating pipe; and the heating pipe and the electrodes are connected through a high-voltage crimping process. The other surface of a positive electrode plate is connected with the first knife switch; and the other surface of a negative electrode plate is connected with a second knife switch. And a ceramsite sand recoverer is positioned below the heating pipes, an upper part is welded with the second knife switch, and a lower part is welded with a third knife switch.

The invention discloses a device and a method for realizing bridge connection between a PC and a display card based on an FPGA. The PCIE EP module comprises a PCIE EP module integrated on an FPGA, thePCIE EP module is used for receiving and storing information of an internal register and BAR of the display card, analyzing a TLP sent by the PC to the display card, and sending analyzed data to thePCIE RP module; The PCIE RP module is used for carrying out power-on initialization on the display card and distributing BAR resources of the display card, and is used for packaging the received dataand sending the data to the display card; And the ARM processor is used for controlling the PCIE RP module to obtain information of an internal register and BAR of the display card and sending the information to the PCIE EP module. Information simulation and data bridging are carried out on the FPGA, the EP function and the RC function can be achieved at the same time, and the method has the advantages of being free of limitation of closed source drive and high in universality.

The invention discloses a cam driven pin-pricking type rubber cutting machine. The rubber cutting machine comprises an upper track, a lower track, a moving assembly, wherein the upper track and the lower track are fixed on a rubber tree; the moving assembly comprises a moving frame, driving wheels, cams, pricking pins and a motor; the moving frame is glidingly connected with the pricking pins, thecams are rotationally connected with the moving frame through a first rotating shaft, the pricking pins perform reciprocating motion under the drive of the cams, the motor drives the first rotating shaft to rotate, the driving wheels driving the moving assembly to move along the upper track and the lower track are arranged at upper and lower ends of the moving frame respectively and are rotationally connected with the moving frame through a second rotating shaft, a fan-shaped tooth is arranged on the first rotating shaft, the second rotating shaft is provided with gears, and the fan-shaped tooth drives the gears. The rubber tree can be pricked by piercing the pins, pulling out the pins and moving positions of the pins with one motor as a power input source.

Disclosed is an isolation-free in-circuit programming system including an in-circuit programmer and an application board connected to the in-circuit programmer through a peripheral interface bus and having a bus controller and a memory, wherein the bus controller is connected to the memory through a system bus, in which the in-circuit programmer includes a leakage current discharging circuit connected to the bus controller for detouring a leakage current flowing from the memory or the in-circuit programmer to the bus controller to flow therethrough. The in-circuit programmer also includes an input level shifter for receiving data signals from the memory and adjusting the high-level input voltage of the in-circuit programmer to decode any weak high-level output voltage from the memory, thereby allowing the high-level output voltage of the memory to be higher than the high-level input voltage of the in-circuit programmer.

The invention relates to a medicament for preventing and treating viral hepatitis of ducklings and belongs to the technical field of medicine and medical engineering. The medicament consists of the following components in parts by weight: 5-15 parts of radix gentianae, 5-15 parts of flos lonicerae, 5-15 parts of cyrtomium rhizome, 5-15 parts of selfheal, 4-12 parts of uncaria, 4-12 parts of notopterygium, 4-12 parts of radix angelicae pubescentis, 4-12 parts of herba artemisiae scopariae, 3-10 parts of radix paeoniae alba, 3-10 parts of turtle shell, 3-10 parts of rhizoma dioscoreae colletii, 3-10 parts of pericarpium citri reticulatae viride, 2-6 parts of rhubarb, 2-6 parts of gardenia, 2-6 parts of jujube and 2-6 parts of liquorice. The Chinese herbal medicines are dried, weighed, ground, sieved by using a 60-80-mesh sieve, and mixed and stirred evenly. In clinical application, the medicament is soaked by using boiling water for 30-60 minutes to sufficiently dissolve and precipitate effective components of the medicament so as to be beneficial to the absorption in bodies of infected ducks, simultaneously a small amount of saccharides and Vc is added, and lysine, somatotropin and yeast powder are added into a feed for the ducklings according to the instructions, so that the medicament efficacy can be improved. The medicament is high in clinical cure rate without adverse reaction or drug resistance hidden trouble, easily available in raw materials, simple in preparation and convenient to use, and can be widely applied in the duck breeding industry.

The invention discloses a multifunctional super-powerful permanent-magnet drive motor with the automatic torque increase and decrease function, the power generation function and the charging function, belongs to the technical field of permanent-magnet motors, and mainly provides a permanent-magnet motor for a vehicle. The multifunctional super-powerful permanent-magnet drive motor with the automatic torque increase and decrease function, the power generation function and the charging function is mainly characterized in that inner layer shell bodies with different diameters and with outer end open are arranged in an outer shell, stator core winding bars which are attached to the inner wall of the outer shell and the inner walls of the inner layer shell bodies serve as stators, a main power shaft is provided with a main shaft magnetism isolation layer liner, main shaft integral rotor magnetic steel bodies and rare-earth permanent magnet stripes, layer integral rotor magnetic steel bodies are arranged between inner layer shell bodies, and between each inner layer shell body and the outer shell respectively, integral precision casting magnetism isolation layer liners are arranged on the inner walls of the layer integral rotor magnetic steel bodies respectively, layer rotor rare-earth permanent magnet stripes are installed in the integral precision casting magnetism isolation layer liners respectively, and the main power shaft is provided with tool driving wheels for vehicle and ship auxiliary equipment. The multifunctional super-powerful permanent-magnet drive motor with the automatic torque increase and decrease function, the power generation function and the charging function has the advantages of increasing driving force of climbing, starting and accelerating power torque, and is mainly applied to automobiles, bullet trains, ships and the like.

The invention discloses a tapered blade wire-cutting mechanism for a wire-stripping machine. The mechanism comprises a driving device and a knife rest, wherein an air cylinder, an air cylinder fixing frame and an installation fixing frame are arranged on the driving device; the driving device is mainly driven by the air cylinder fixed on the panel of the wire-stripping machine; the knife rest is provided with a stator, a rotor, a cutter group, a spring group and a fixing frame; the cutter group is installed in the stator; due to the reacting force of the spring group, the blades of cutters are always away from a wire-through hole III in the stator; and the cutters move towards the through hole III under the impetus of the rotary rotor, so as to achieve a wire cutting effect. The tapered blade wire-cutting mechanism has the advantages of precise and adjustable travel, large driving strength, high stripping speed, no cable core damage, stable performance, loge service life, simple structure and low cost.

The invention discloses a fluid pressure type rotation driving device which comprises a bottom mounting substrate. By means of the device, circulating fluid in a hydraulic pump can be converted into kinetic energy in a rotating state to be used, the advantages that the manufacturing cost is low and the structure is simple are achieved, meanwhile, the fluid pressure intensity is used for drive, andthe advantages that controllable capacity and drive strength are high are achieved; the device is provided with a spiral spring abutting elastic maximum fluid pressure effective control mechanism, the maximum pressure of fluid used for drive can be effectively controlled through elasticity of spiral springs, and the phenomenon that components are limited due to too large drive pressure is avoided; in addition, the device is provided with an inner drive fluid leaking type storage mechanism, fluid can be stored, and therefore fluid is reutilized, and the waste degree is reduced; and in addition, the device is provided with an abutting type maximum rotating strength control mechanism with compressed spiral springs arranged in an annular array manner, and the maximum strength of rotation driving can be effectively controlled through the spiral springs in the annular array.

The invention relates to a multi-function four-wheel drive transfer case. The multi-function four-wheel drive transfer case comprises a case body assembly, an input shaft assembly, a middle shaft assembly, a four-wheel drive shaft assembly, a high-low gear fork shifting assembly and a driving gear fork shifting assembly. An input shaft duplicate gear of the input shaft assembly consists of an input shaft high-speed gear and an input shaft low-speed gear, and the input shaft high-speed gear and the input shaft low-speed gear can separately mesh with a middle shaft high-speed gear and a middle shaft low-speed gear. A rear axle combining sleeve and a front axle combining sleeve of the four-drive axle assembly mesh with a rear axle and a front axle separately, a driving gear front shifting fork and a driving gear rear shifting fork can separately drive the front axle combining sleeve and the rear axle combining sleeve to move in the axial direction of the front axle and the rear axle, thefront axle combining sleeve and the rear axle combining sleeve can mesh with a four-wheel drive driven gear in a sleeving connection mode, and the four-wheel drive driven gear meshes with a middle shaft transmission gear. The multi-function four-wheel drive transfer case can realize the rear wheel drive of a transport vehicle provided with the multi-function four-wheel drive transfer case when driving on a good road surface, the front wheel drive is adopted when driving on a non-hard road surface, and the four-wheel drive is adopted when climbing on low speed or crawling.

The invention discloses a wheel-legged type reducing pipeline inner wall crawling robot which comprises a carrier vehicle body, a driving mechanism and a walking mechanism. The driving mechanism is used for driving the walking mechanism, and the end, away from the driving mechanism, of the walking mechanism is tightly attached to the inner wall of an external pipeline and can circumferentially rotate around the center line of the driving mechanism. The walking mechanism comprises a reducing assembly and a walking wheel assembly, wherein one end of the reducing assembly is fixedly connected with a driven assembly, the other end of the reducing assembly is fixedly connected with the walking wheel assembly, and the reducing assembly is used for enabling the reducing assembly to freely rotate so that the walking wheel assembly can be tightly attached to the inner wall of the external pipeline. The walking mechanism adopts a wheel-leg combined mode, the driving capacity, obstacle crossing performance, curve passing performance, movement reliability and pipe diameter adaptive capacity of the walking mechanism are improved, the stretching length of the walking mechanism can be changed by adjusting the angle between a connecting piece and a steering engine according to different pipeline diameters, the purpose of passing in the reducing pipeline is achieved, and flexible turning can be achieved through a connecting rod movably connected with a power vehicle body and a carrier vehicle body.

The invention discloses a transmission and preparation integration assembly for an electromechanical automatic gearbox of a pure electric vehicle, belongs to the technical field of transmission and preparation integration for the electromechanical automatic gearbox of the pure electric vehicle, and mainly solves the problem of extremely high mechanical power loss of a direct drive of a hub motor of the pure electric vehicle. The transmission and preparation integration assembly is mainly characterized in that an input shaft and a permanent magnet driving motor are coaxial; an over-speed planet row sun wheel is mounted on an output section; an over-speed gear brake, an over-speed gear clutch, an over-speed gear one-way clutch, an over-speed planet row planet carrier, an over-speed planet row planet wheel and an over-speed planet row gear ring are mounted through a planet row planet carrier; a front planet row sun wheel and a rear planet row sun wheel are mounted on an input section of an output shaft; a direct gear / reverse gear clutch, a forward gear clutch, a front planet row planet wheel, a front planet row gear ring, a two-gear brake, a two-gear one-way clutch, a low / reverse gear one-way clutch, a rear planet row planet wheel and a rear planet row gear ring are mounted through a front planet row planet carrier and a rear planet row planet carrier. The transmission and preparation integration assembly has the advantages that the output power, the mechanical efficiency, the mechanical performance, the mechanical rotating speed stability and the like can be improved.

Provided is a golden jellyfish-like mechanism based on worm gear and worm drive. The mechanism consists of an umbrella portion, The umbrella-shaped part drives six groups of worm gears to rotate through the worm, and the worm gears are externally connected with the crank-rocker mechanism, and the crank-rocker mechanism is used to complete the stretching and contracting motions, so as to realize the advance behavior of the mechanism, and the tail part distributes the water through the diversion slider to realize the turning behavior of the mechanism at different angles. The invention has the characteristics of compact and stable structure, controllable speed and direction, flexible obstacle crossing, good stability and high transmission propulsion efficiency, and is suitable for the fieldsof complex seafloor environment exploration, marine organism observation, seafloor exploration and the like.

Provided is a golden jellyfish-like mechanism based on worm gear and worm drive. The mechanism consists of an umbrella portion, The umbrella-shaped part drives six groups of worm gears to rotate through the worm, and the worm gears are externally connected with the crank-rocker mechanism, and the crank-rocker mechanism is used to complete the stretching and contracting motions, so as to realize the advance behavior of the mechanism, and the tail part distributes the water through the diversion slider to realize the turning behavior of the mechanism at different angles. The invention has the characteristics of compact and stable structure, controllable speed and direction, flexible obstacle crossing, good stability and high transmission propulsion efficiency, and is suitable for the fieldsof complex seafloor environment exploration, marine organism observation, seafloor exploration and the like.

The invention discloses a diskless computer starting method based on operating system network drive, aiming to solve the problem that the existing diskless computer starting method need to depend on bottom basic input output system (BIOS) network drive and the communication protocol. The technical scheme of the invention comprises the following steps of: firstly, generating an embedded operating system kernel; secondly, generating file system image supporting the download, the storage and the start of a target operating system; thirdly, putting the embedded operating system image into a universal serial bus (USB) device or solidifying the embedded operating system image to a Flash of a computer main board; fourthly; configuring a server; and finally, starting the diskless computer by using the network drive and the communication protocol of the operating system layer. In the process of starting the diskless computer, the embedded operating system is firstly started, and then the embedded operating system takes the charge of downloading, storing and starting the target operating system. The invention breaks through the technological limitation that the BIOS can not efficiently support network interface controller (NIC) drive and the communication protocol in time, avoids the expense for developing the NIC drive and the communication protocol in the BIOS, and has lower expense.

The invention relates to a medicament for preventing and treating viral hepatitis of ducklings and belongs to the technical field of medicine and medical engineering. The medicament consists of the following components in parts by weight: 5-15 parts of radix gentianae, 5-15 parts of flos lonicerae, 5-15 parts of cyrtomium rhizome, 5-15 parts of selfheal, 4-12 parts of uncaria, 4-12 parts of notopterygium, 4-12 parts of radix angelicae pubescentis, 4-12 parts of herba artemisiae scopariae, 3-10 parts of radix paeoniae alba, 3-10 parts of turtle shell, 3-10 parts of rhizoma dioscoreae colletii, 3-10 parts of pericarpium citri reticulatae viride, 2-6 parts of rhubarb, 2-6 parts of gardenia, 2-6 parts of jujube and 2-6 parts of liquorice. The Chinese herbal medicines are dried, weighed, ground, sieved by using a 60-80-mesh sieve, and mixed and stirred evenly. In clinical application, the medicament is soaked by using boiling water for 30-60 minutes to sufficiently dissolve and precipitate effective components of the medicament so as to be beneficial to the absorption in bodies of infected ducks, simultaneously a small amount of saccharides and Vc is added, and lysine, somatotropin and yeast powder are added into a feed for the ducklings according to the instructions, so that the medicament efficacy can be improved. The medicament is high in clinical cure rate without adverse reaction or drug resistance hidden trouble, easily available in raw materials, simple in preparation and convenient to use, and can be widely applied in the duck breeding industry.

A portable high voltage amplifier is used for amplifying small-amplitude unipolar square wave signals into unipolar high voltage square wave signals with a high slew rate, characterized in that the portable high voltage amplifier comprises a signal input end, a reverse unit, a driving unit, a transformer, an upper bridge arm unit, a lower bridge arm unit and a signal output end, wherein the signalinput end is used for inputting an external signal to be amplified, the reverse unit is used for processing the signal to be amplified to obtain two paths of unipolar square wave signals VP1 and VP2which have the same voltage amplitude, the same frequency and a phase difference of 180 degrees, the driving unit is used for processing the unipolar square wave signals VP1 and VP2 to obtain pulse signals which have a phase difference of 180 degrees and have very high source current and sink current, the transformer is provided with a primary coil, a first secondary coil and a second secondary coil, the upper bridge arm unit and the lower bridge arm unit are rapidly and alternately turned on, and the signal output end is used for outputting the unipolar high voltage square wave signals with the high slew rate.