47results about How to "Strong output ability" patented technology

The invention discloses a current transformer control device. A first digital signal processor (DSP) module is externally connected with a communication interface module, and a data and address bus is connected with a first field programmable gate array (FPGA) module at the same time to receive and transmit various communication data; the first FPGA module is connected with the first and second DSP modules and exchanges data with the first and second DSP modules, and the first FPGA module is connected with a second FPGA module to perform control signal transmission; a dynamic random access memory (DRAM) module is connected with the first DSP module and the second DSP module respectively to realize data exchange of the first and second DSP modules; and the second DSP module is connected with an analog/digital (A/D) module, a digital/analog (D/A) module and the first and second FPGA modules. According to the technical scheme, the current transformer control device has high data acquisition and output capacities, simultaneously has strong universality, has various communication functions and interfaces, and can meet the requirements of various industrial application occasions.

Seam sealer for sealing seams in an asphalt paving operation has electric heaters and heats a seam area that includes a narrow strip of previously laid-down asphalt and a narrow strip of the road surface to be paved. A temperature sensor senses temperature of the seam area. A control system adjusts energy level supplied to the heaters, to obtain a pre-determined temperature on the road surface. The pre-determined temperature is close to the temperature of the fresh hot asphalt to be applied. An asphalt paver travels behind the seam sealer and applies fresh hot asphalt to the road surface still to be paved, overlapping it onto the previously laid down asphalt in the seam area. The fresh hot asphalt and the previously laid down asphalt form a molten mass, which is subsequently pressed to a smooth, fused and finished road surface by a road roller.

The invention discloses flexible stretchable integrated piezoelectric rubber including an electrode composite layer A (1), an electrode composite layer B (2) and a piezoelectric composite layer (3). The electrode composite layer A (1) and the electrode composite layer B (2) are disposed on two sides of the piezoelectric composite layer (3). Both of the electrode composite layer A (1) and the electrode composite layer B (2) are made through filling flexible polymer material with conducting particles. The piezoelectric composite layer (3) is made by filling flexible polymer material with piezoelectric material. The flexible polymer material forming the piezoelectric composite layer and the flexible polymer material forming the electrode composite layers are identical and both are mixing silicone rubber having flexibility and stretchability after vulcanization. According to the invention, the rubber has good electric signal output capability in a stretched condition and has stable electric property output after multiple stretching processes, so that the piezoelectric rubber has good stretchability and more choices is provided for wearable devices for human bodies and large deformation application.

The invention discloses a compressor control method of a variable frequency air conditioner of a railway vehicle. During startup and shutdown control, the temperature difference is used as a judgmentcondition, and the total running time or the continuous running time is added as a judgment condition, so that the compressor can be started immediately, capacity output can be performed quickly, thetarget temperature in the passenger room can be reached quickly, and matching of startup and shutdown of the compressor and actual requirements in the passenger room is realized; when the operation frequency is controlled, the duration time is also increased as a judgment condition; the operation frequency of the compressor is continuously adjusted according to the change of the heat load in the passenger room; the output capacity of the air conditioner is optimal; the actual temperature in the passenger room is always stabilized within the range of +/-1 DEG C of the indoor target temperature,so that the phenomenon of passenger room temperature fluctuation caused by frequent opening and closing of the compressor can be reduced, the passenger room is more comfortable and energy-saving, meanwhile, the operation frequency of the compressor is matched with the actual requirement in the passenger room, and the influence on the service life of the compressor is reduced.

The invention discloses a gate driving circuit, comprising a plurality of gate driving units in cascade, characterized in that the plurality of gate driving units respectively comprise an input moduleconnected with a first node and charging the first node according to a first start signal and a second start signal; a first output module connected to the input module at the first node, generatinga gate driving signal of the present stage according to the first clock signal, and providing the gate driving signal of the present stage at the output terminal; the second output module is connectedwith the input module to the first node, and generates a transfer signal of the current stage according to the first clock signal; a first pull-down module the pulls down the first node to the low level signal under the control of the second clock signal; and a stabilizing module which maintains the gate signal of the current stage at a low level under the control of the first clock signal and the second clock signal. The gate driving circuit can realize a narrow frame and a low power consumption display device, and reduce the occurrence of the cross ripple phenomenon.

The invention discloses a straw gasification combustor, and relates to improvement on a straw combustor structure. The invention provides the straw gasification combustor more suitable for straw combustion and having high combustion efficiency. The straw gasification combustor comprises a furnace body; the inside of the furnace is provided with a combustion chamber; and the straw gasification combustor has structural key points that: the bottom of the combustion chamber is provided with a slag falling baffle with air holes; an outlet on the bottom of the slag falling baffle is provided with aslag outlet screw; a secondary air duct is arranged between a furnace wall with air holes of the combustion chamber and a shell of the furnace body; an outlet of the combustion chamber is a cyclone spout with spiral blades; a feeding hole of the combustion chamber is provided with an electric heater which is connected with a feed delivery pipe of which the inside is provided with a feeding screw and the upper part is provided with a fuel bin; and the inside of the feeding screw is provided with an ignition air duct.

The present invention discloses a fuse tube with the function of wave filtration, and the fuse tube includes a metal wire and a tube; wherein, the metal wire is arranged in the tube which is filled with granular electric wave absorption materials. The granular size of the electric wave absorption materials stands at 50 items to 300 items. The advantage is that the tube is filled with granular electric wave absorption materials that can well absorb or isolate the interference of miscellaneous waves, at the same time, reduce and restrain the influences of the miscellaneous wave interference produced in the working of the machine on other equipments via a power supply loop. By entering into the front end of the machine power supply, the function of wave filtration can be effectively brought into full play, thus letting the machine have better anti-interference capability in the increasingly serious ambience of electromagnetic interference and have more stable working performance and the state of the machine.

The invention provides an industrial uninterrupted seamless switching inverter power supply device for solving a voltage sag problem. The device includes a power supply circuit, an isolation samplingcircuit, a super capacitor group circuit, an RS485 serial communication interface circuit, a CAN bus serial communication interface circuit, a precise full-wave rectification and operational amplification circuit, a data storage circuit, an electromagnetic relay driving circuit, an active low voltage fast AC switching circuit, an H-bridge inverter output circuit, a PWM boosting circuit and a transformer boosting circuit, wherein the power supply circuit includes an AC-DC voltage reduction circuit and a DC voltage stabilizing circuit. The device is advantaged in that the switching speed is fast, the MOSFET fast switching capability is utilized to make the switching time of the power supply to be within 1MS, the device has good versatility, long service life, small size, convenient installation and flexible use, and the key equipment can be protected pertinently.

The invention belongs to the technical field of circuit control of piezoelectric ceramic actuators, and particularly relates to a driving method and driving circuit for a piezoelectric ceramic actuator. The method comprises the following steps: amplifying an input control signal to obtain a pre-amplification control signal V1; amplifying the sum of the V1 and a feedback signal V2 to obtain a voltage control signal V4, wherein the V2 is a signal obtained after voltage V0', which is output after a transformer T1 releases energy under the action of input voltage Vp, is divided by a resistor; calculating a PWM wave with a specific duty ratio by using a PWM control chip based on the V4 and feedback voltage V5, and allowing a primary coil to store energy or release energy under the action of the PWM wave and the inductance value of the transformer, wherein the voltage V0' is output during energy release, and the V5 is the voltage generated after current generated by the primary coil under the action of the Vp flows through a sampling resistor; and jointly controlling the unloading action of the voltage V0' by adopting the sum of V5 and V4 until the voltage V0 'reaches a target voltage. According to the method, in continuous adjustment of unloading action and boost control, the control precision of output voltage can be effectively improved, and output ripples can be reduced.

The invention provides a power supply module, a power supply system composed of the power module and a control method of the power system. The power module comprises a power conversion circuit, a control circuit, a sampling feedback circuit, a circuit detection circuit, and further comprises at least one comparison control circuit. The power supply system comprises N power supply modules in parallel, wherein N is a natural number greater than 1; any one of the power supply modules is used as a main module, and the other N-1 power modules are used as slave modules; a current signal output by the main module is fed back to the slave module through an external connection wire; the slave module receives the current signal of the main module and compares the current signal with its own output current; the output current of the slave module is kept the same as the output current of the main module by adjusting the output power of the slave module by the slave module, so as to achieve the purpose of parallel current sharing output of the N power supply modules. The parallel current sharing modules of the present invention are all identical, and the modules can be directly used in parallelcurrent sharing, without any external devices or equipment added, the circuit design is simplified, and the reliability of the power supply is improved.

The invention discloses a driving device. The driving device comprises a hydraulic motor connected with a cutter shaft through a planetary reducer, a torque supporting plate with a first end connectedto the planetary reducer, a supporting seat installed on an installation guide rail, and a connection rod connected with the supporting seat through a first pin shaft, wherein a second end of the torque supporting plate is connected with the connection rod through a second pin shaft, the connection rod is provided with a lower connection hole and an upper connection hole, the second end of the torque supporting plate is provided with a plate connection hole, the supporting seat is provided with a seat connection hole, the first pin shaft penetrates through the lower connection hole and the seat connection hole, the second pin shaft penetrates through the upper connection hole and the plate connection hole, the tails of the first pin shaft and the second pin shaft are both fastened throughnuts, the first pin shaft is connected with the seat connection hole through a bearing, and the second pin shaft is connected with the plate connection hole through a bearing. The driving device makes the integral structure of a shredder be compact, the installation space is small, and the output capability is high. The invention further discloses a biaxial shredder comprising the driving device;the biaxial shredder has the same beneficial effects as the driving device.

The invention relates to a microminiature two-degree-of-freedom ultrasonic motor and a driving method thereof. The microminiature two-degree-of-freedom ultrasonic motor comprises a base, an x-axis movement unit, a y-axis movement unit and an objective table. The x-axis movement unit is fixedly connected to the base, and the y-axis movement unit is fixedly connected to a driven part of the x-axis movement unit. the objective table is fixedly connected to a driven piece of the y-axis movement unit. The driving method is as follows: the movement of the x-axis movement unit and the movement of the y-axis movement unit are mutually independent, the driving method is consistent, and sawtooth waves can be synthesized on the x axis and the y axis respectively by controlling ultrasonic excitation signals of piezoelectric stacks of the x-axis movement unit and the y-axis movement unit, so that independent movement of the two axes is generated. The motor has the advantages that the device is miniaturized in structure, simple in driving method, high in speed, high in precision, low in cost and easy to integrate, can be used as a built-in camera anti-shake device of a mobile phone, and has a wide application prospect in use occasions with limited application space, such as miniature equipment.

The invention discloses a blue color paste preparation and printing drying process, comprising a worktable, a printing mechanism is provided on one side of the upper surface of the worktable, a support frame is provided on the other side of the upper surface of the worktable, and the support The lower surface of the frame is provided with a conveying auger, a vibrating block is arranged on the conveying auger, a feeding port is processed on the upper surface of the conveying auger, one end of the conveying auger is provided with a curved pipe, the dye barrel, The acrylic emulsion barrel, the water storage barrel and the thickener barrel are all provided with discharge ports, each of the discharge ports is fixedly connected to the feed port through a pipe, and the discharge head is fixed to the curved pipe through a material guide pipe Links, the beneficial effects of the present invention are green printing and dyeing, ecological discharge, high deduction printing efficiency, simple structure and strong practicability.