262results about How to "Increase operating frequency" patented technology

According to one exemplary embodiment, an efficient and high speed E-mode III-N/Schottky switch includes a silicon transistor coupled with a D-mode III-nitride device, where the silicon transistor causes the D-mode III-nitride device to operate in an enhancement mode. The E-mode III-N/Schottky switch further includes a Schottky diode coupled across the silicon transistor so as to improve efficiency, recovery time, and speed of the E-mode III-N/Schottky switch. An anode of the Schottky diode can be coupled to a source of the silicon transistor and a cathode of the Schottky diode can be coupled to a drain of the silicon transistor. The Schottky diode can be integrated with the silicon transistor. In one embodiment the III-nitride device is a GaN device.

The invention discloses a rotary magnetic refrigeration device. The rotary magnetic refrigeration device comprises a magnetic field source, two active regenerator modules and cold and hot fluid heat exchange channels, and is characterized in that: two packing layers sandwich a magnetic medium in a radial direction so as to form one active regenerator module; the two active regenerator modules are staggered coaxially and axially and arranged at an interval of 180 DEG in the circumferential direction, and pass through an upper half magnetic field region covered with the magnetic field source and a lower half nonmagnetic region alternately when rotating synchronously; A hot fluid channel which is communicated with a high temperature end heat exchanger is statically arranged in the pace of the magnetic field region at the rotating periphery of the active regenerator module; and the cold fluid channel which is communicated with a low temperature end heat exchanger is statically arranged in the space of the nonmagnetic region at the rotating periphery of the active regenerator module, and thermal insulation layers are arranged between the two active regenerator modules in the axial direction, and at the periphery and left and right end faces of the cold and hot fluid channels.

When power stoppage of a main power supply is detected during a normal operation, a power controller switches a power supply for a DRAM from the main power supply to a battery power supply and makes an instruction signal for instruction a self-refresh mode to a memory controller active. In response to this, the memory controller changes a clock enable signal for the DRAM to a low level to establish the self-refresh mode of the DRAM, and, after, the self-refresh mode of the DRAM is established, supplying of power to the memory controller is stopped. The clock enable signal for the DRAM is maintained to the low level by pull-down resistance even when the supplying of power to the memory controller is stopped from a condition that the signal is changed to the low level in the self-refresh mode, thereby maintaining the self-refresh mode of the DRAM.

The invention discloses an air conditioner and an oil return control method and device thereof. The oil return control method includes the steps of judging whether the operation condition of the air conditioner meets a preset condition which is used for triggering the air conditioner to start an oil return program, and controlling the air conditioner to start the oil return program under the condition that the operation condition of the air conditioner is judged to meet the preset condition so that oil return operation, at least comprising increasing of the operation frequency of a compressor of the air conditioner, can be executed. The technical problems that in the prior art, due to improper oil return of the compressor, the lubricating effect is poor, and abrasion of the compressor is high are solved.

The invention discloses an aircraft pose estimation method based on direct method and inertial navigation integration. The six-degree-of-freedom pose of an aircraft is optimized by visual measurementbased on a direct method, re-projection luminosity errors are minimized, visual measurement is integrated with measurement of inertial navigation components to obtain scales, the aircraft can be accurately positioned for a long time without external aided navigation of GPS (global positioning system) signals and the like, and robustness is good.

The present invention is a pulse detonation combustion system, having a plurality of detonation initiation devices coupled to a main combustion chamber, where each of the detonation initiation devices is operating out-of-phase with each other. Each of the detonation initiation devices assists in the initiation of a detonation in the main combustion chamber, out-of-phase from each other such that the operational frequency of the pulse detonation combustion system is related to the number of detonation initiation devices multiplied by the operational frequency of a single detonation initiation device.

A solid state disk drive is provided. The solid state disk drive includes a memory device and a controller. The memory device includes memory cells for storing data bits. The controller is coupled to the memory device, accesses the memory device according to a clock signal, estimates a work load of the memory device, and adjusts a frequency of the clock signal in accordance with the estimated work load.

The invention provides a control method used for frequency adjusting of an air conditioner compressor and a refrigerator. The method comprises the steps of obtaining outdoor environment temperature ofenvironment where an outdoor unit of an air conditioner is located, and according to the outdoor environment temperature, determining the exhaust target temperature of the compressor; obtaining the starting event of the compressor, and controlling the compressor to run at the initial frequency; detecting the exhaust temperature of the compressor, and determining the temperature rise speed of theexhaust temperature; after the preset compressor adjusting time is achieved, judging whether the temperature rise speed is larger than the preset first speed threshold value or not; if not, increasingthe compressor running frequency to the set frequency value, and returning to execute detection of the exhaust temperature again, and determining of the temperature rise speed until the exhaust temperature is larger than the exhaust target temperature. The running frequency of the compressor can be improved only when the condition that the rising speed of the exhaust temperature is smaller than the first speed threshold value is met, and the oscillating of the running frequency of the compressor can be well avoided.

The invention relates to a coder for conveniently implementing a LDPC long code in an FPGA and a coding method. A LDPC coding module receives uncoded data output from a ping-pong buffer group input module and a check matrix output from a Synchronous Dynamic Random Access Memory (SDRAM) check matrix group module, obtains a parity matrix check code after a coding operation, outputs the code to a coding output buffer module for a code rate match, transmits the matched parity matrix check code with a certain length to an interleaving module in the LDPC for a bit combination and a bit interleave and outputs the interleaved coding data. The technical scheme of the invention has advantages of less hardware source, low design complexity, high operation frequency, easy implementation and high reliability, and flexibly implements different application environment demands according to the actual utilization demands and the hardware source conditions.

The invention discloses a refrigerating control method for an air conditioner. The refrigerating control method comprises the following steps: obtaining temperature difference between indoor environment temperature and set temperature in a timed mode after the air conditioner enters a refrigerating mode; improving operation frequency of the air conditioner when temperature difference is greater than first preset temperature difference, and duration of refrigerating operation of the air conditioner is greater than preset duration; and controlling the air conditioner to operate according to improved operation frequency, so that the air conditioner is in a quick refrigerating mode. The invention further discloses a refrigerating control device for the air conditioner. When the temperature difference is greater than first preset temperature difference, and duration of refrigerating operation of the air conditioner is greater than preset duration, operation frequency of the air conditioner is improved; and the air conditioner is controlled to operate according to improved operation frequency, so that duration for reaching the set temperature of the air conditioner is reduced.

The invention provides a method for controlling refrigeration of a variable frequency air conditioner. The indoor air conditioner comprises two evaporators connected in parallel, two draught fans corresponding to the two evaporators and two air blowout units corresponding to the two draught fans respectively. Each air blowout unit includes at least one air outlet. The refrigeration control methodconsists of the steps that the indoor target temperature Ta, the interior environmental temperature Tb, the outdoor environmental Tc and the coil pipe temperature of two evaporators should be detectedwhile the air conditioner is operating in a refrigeration mode, wherein the lower value of coil pipe temperature is marked as Td; the on-or-off state of the two draught fans is detected; the operating frequency of compressors is determined by Td temperature range and the value of Ta, Tb, Tc if both draught fans are in service; and the operating frequency of compressors is decided by temperature difference range of Tb, Ta and the value of Ta, Tb, Tc if only one draught fan is on. The method not only makes air conditioners capable of meeting the cooling needs, but also protects the evaporatorsfrom frost by controlling the operating frequency of compressors accurately.

A circuit analysis tool is provided for optimizing circuit clock operating frequency using useful skew timing analysis. The instructions supply clock signal with an optimized operating frequency. A first gate signal input slack time is determined with respect to the clock signal to the first gate. If the first gate signal input has a negative slack time, a delay is added to the first clock signal. A second gate signal input slack time is determined with respect to the clock signal to the second gate. If the second gate signal input slack time is negative, a delay is added to the second clock signal necessary to create a second gate signal input positive slack time. In response to the first and second gate signal input positive slack times, it is determined that the circuit successfully operates at the clock optimized operating frequency.

An oversampling method for data signal includes oversampling data strobe signal and data signal according to sampling phases to generate first and second sampling results, performing edge detection on the first and second sampling results to obtain first and second edge positions where edges are detected, calculating and storing first offset according to the first edge position and the corresponding second edge position when the second edge position are obtained, using first offset obtain in a previous sampling cycle as the first offset in a current sampling cycle when the second edge position aren't obtained, calculating first sampling point according to the first edge position; calculating second sampling point according to the first sampling point and the corresponding first offset, and selecting and outputting the corresponding second sampling results according to the second sampling point.

A cooling and dedusting method of a gearbox lubricating and cooling system comprises the following steps that S1, the gearbox lubricating and cooling system is assembled; S2, the speed of an oil pump motor is regulated in the starting or running process; S3, dust and oil films bonded on a cooler and a cooler fan are removed. According to temperature information fed back by mounting in an oil tank of a gearbox, PID automatic control is carried out over the running frequency of the oil pump motor and a fan motor so that a frequency converter can control the running speed of the fan and the running torque of the oil pump motor. In the starting and running process of the oil pump motor, the oil pump motor is made to be started smoothly according to the temperature and viscosity condition of lubricating oil, and the aim of saving energy under the working condition of high temperature is achieved.

The invention relates to an organic semiconductor orientation composition, an organic semiconductor orientation film, an organic semiconductor element and a method for manufacturing same. The aim of the invention is to provide an organic semiconductor orientation composition for forming an organic semiconductor orientation film. The stability of the carrier mobility of high heat-resistance can be realized by the orientation film excellent in optical alignment sensitivity. Meanwhile, excellent carrier mobility of organic semiconductor molecules at high levels in different directions can also be realized. The invention discloses an organic semiconductor orientation composition of polyorganosiloxane compound comprising an optical orientation group [A]. The optical orientation group is preferable a group comprising a cinnamylate structure. The group comprising the cinnamylate structure is selected from at least one of the group composed of the compositions illustrated as the formula (1) and the formula (2).

The invention provides a game operating environment accelerating system. The system comprises an initialization module, a network agent selection module, a terminal state adjustment module, a data takeover module and a circulation module, wherein the initialization module is used for initializing a game accelerator and starting a game state monitoring loop; the network agent selection module is used for triggering an operation environment adjustment and optimization mechanism when a game is started and selecting the optimal network agent scheme; the terminal state adjustment module is used forthrowing monitoring loops of a memory and a CPU (central processing unit) after a first data packet of the game is sent out to monitor the operating state of the memory and the CPU of terminal equipment in real time and dynamically adjusting the memory and the CPU according to the monitoring result; the data takeover module is used for monitoring network data transmission data in real time in thegame operation process, performing dynamic optimization and configuration on network links according to the monitoring result and transmitting game data packets by use of multiple links; the circulation module is used for circulating the execution process of each module. According to the provided technical scheme, the game can operate in the optimal environment.

The invention discloses a real time self-adapting processing method of anastigmatic imaging, which is a real time self-adapting processing method of anastigmatic imaging in a high-speed movement small-object imaging system. According to the method, small objects in high-speed movement can be automatically searched and found, FPGA and DSP are used as the real time on-line processing platform, an image reinforcement and inter-frame correlation identification algorism with low complexity is adopted, effect of fake objects are removed to obtain movement characteristics of the objects, so as to drive a high-precision two-dimensional piezoelectricity tilting mirror to complete self-adapting movement compensation, thereby realizing clear imaging of the high-speed movement small-objects.

The invention provides a control method of a refrigerator, a control device of the refrigerator, and the refrigerator. The method comprises the following steps: detecting the current indoor temperature; judging whether the temperature variation between the current indoor temperature and the preset indoor temperature is greater than or equal to the preset indoor temperature variation or not, if so, adjusting the current running frequency of a compressor of the refrigerator, and/or the current first rotating speed of an outdoor fan of the refrigerator and/or the current second rotating speed of an indoor fan of the refrigerator; otherwise, controlling the compressor to keep the current running frequency, and/or controlling the outdoor fan to keep the current first rotating speed and/or the indoor fan to keep the current second rotating speed. Through the technical scheme provided by the invention, the working states can be adjusted by the refrigerator according to environmental temperatures and other constantly changing situations, and the refrigerator can work under the optimum condition at any time, so that the refrigerating efficiency of the refrigerator is improved, the noise of the refrigerator is reduced, and the life of the refrigerator is prolonged.

The invention discloses an air conditioning system and a dehumidification control method thereof. The method comprises the following steps that after the air conditioning system enters a dehumidification mode, the air conditioning system is controlled to achieve refrigeration operating, and an electric heating unit of the air conditioning system is controlled to carry out heating; after the air conditioning system achieves refrigeration operating for a first preset time, the air conditioning system is controlled to be switched to heating operating, and the electric heating unit is controlled to continue to carry out heating; and after the air conditioning system achieves heating operating for a second preset time, the air conditioning system is controlled to achieve refrigeration operating again for the first preset time, so that the air conditioning system cyclically carries out refrigeration and heating. Therefore, by means of cyclic refrigeration and heating, the dehumidification aim is achieved on the premise of guaranteeing that the temperature of an air conditioning system room is reduced slowly or is not reduced.