55results about How to "Lower device cost" patented technology

An electric device includes: a first electric element; a second electric element capable of flowing large current therethrough so that heat is generated in the second electric element; a heat sink; and a first wiring board and a second wiring board, which are disposed on one side of the heat sink. The large current in the second electric element is larger than that in the first electric element. The first wiring board and the second wiring board are separated each other. The first electric element is disposed on the first wiring board, and the second electric element is disposed on the second wiring board.

The invention discloses an LED (Light-Emitting Diode) television two-in-one power supply circuit and an LED television. The LED television two-in-one power supply circuit comprises a rectifying and filtering module, a PFC (Positive Feedback Circuit) module, a reverse excitation circuit module, an LLC (Logical Link Control) half-bridge resonant module, a constant-current module, a feedback module and an LLC control module. Alternating current is partitioned into two paths after being rectified and filtered and corrected by the PFC module; one path is used for supplying power to a motherboard core through the reverse excitation circuit module; and the other path is used for supplying power to an LED light bar through the LLC half-bridge resonant module. Power is supplied separately with two paths since voltages needed by the LED light bar and the motherboard core are different, so that the power supply efficiency is increased, and the element cost is lowered. The LLC control module is fed back to the primary stage of an LLC transformer of the LLC half-bridge resonant module, so that the resonant groove state is monitored in real time, and complete protection is realized. Moreover, the transformer does not need to be driven, so that the quantity of safety devices is small.

A method for nondestructively detecting an elasticity of a viscoelastic medium and a device for nondestructively detecting an elasticity of a viscoelastic medium are provided. The method comprises steps of: a) driving an ultrasonic transducer probe with a low-frequency vibration by a vibrator so as to produce an elastic wave to be propagated in the viscoelastic medium, transmitting an ultrasonic wave to the viscoelastic medium by the ultrasonic transducer probe, and collecting an ultrasonic echo returned from the viscoelastic medium; b) selecting an effective ultrasonic echo from the ultrasonic echo according to a duration of the low-frequency vibration and physical parameters of the viscoelastic medium; c) calculating a propagation velocity of the elastic wave in the viscoelastic medium according to the effective ultrasonic echo; and d) calculating the elasticity of the viscoelastic medium according to the propagation velocity of the elastic wave.

The present disclosure relates to a storage device. The storage device comprises a frame having a hole and a printed circuit board embedded in the frame, wherein the printed circuit board has an extended part for forming a connector. The connector may pass through the hole and is exposed out the frame for interfacing the storage device with a host device. At least one memory device is mounted to the printed circuit board and electrically connected to the printed circuit board.

An inflatable prosthetic breast for wearing against an outer surface of a chest includes a housing having a back wall having a peripheral edge. A front wall is attached to and extends along a length of the peripheral edge such that an inner space is defined between the front and back walls. The front wall has a convex shape such that the front wall extends outwardly away from the back wall. The housing has an opening therein. The back wall and the front wall comprise a latex material has a thickness generally between 0.08 mm and 2.0 mm. A plug is removably extendable into opening. A fluid may be selectively added into or removed from the housing until the housing has a desired size.

The invention discloses a complementary type resistive random access memory and a production method thereof. The complementary type resistive random access memory sequentially comprises a bottom electrode, an oxygen storage layer, a storage medium layer and a top electrode from bottom up, wherein the titanium dioxide nanometer storage medium layer and the titanium oxynitride oxygen storage layer are prepared by plasma oxidation of a titanium nitride film. Oxygen vacancies are distributed between an upper interface and a lower interface of the nanometer storage medium layer through electric excitation so as to achieve the complementary type resistance changing function. The problem of crosstalk in a cross array of the resistive random access memory is effectively solved. The complementary type resistive random access memory has the characteristics of simple production method, low cost and the like. The production method is used for developing a nanometer nonvolatile resistive random access memory with high storage density and low power consumption.

A wireless remote USB hub apparatus includes a server end operation processor module as the data processing center, for converting and processing data; a server end wireless Wi-Fi communication module is coupled to the server end operation processor module, for transceiving data of Wi-Fi communication protocol format; and at least one USB port, for connecting electronic devices that supports USB, such as a USB drive or printer. When the electronic device connects to the USB port, the server end operation processor module receives a connection signal data from the USB port, converts the connection signal data format into Wi-Fi communication protocol format, and then transmits the connection signal data via the server end wireless Wi-Fi communication module to a personal computer or other client device. Thereby a user of the client device may remotely utilize the electronic device connected to the wireless remote USB hub apparatus.

The invention discloses a driver topological structure of an open-winding motor and a modulation method of the driver topological structure. According to the driver topological structure, each bridgearm comprises an upper bridge arm power switching device and a lower bridge arm power switching device; the upper node of the upper bridge arm power switching device of each bridge arm is connected with a direct-current bus-bar voltage; the lower node of the lower bridge arm power switching device is connected with power source ground; the lower node of the upper bridge arm power switching deviceand the upper node of the lower bridge arm power switching device are connected with each other so as to be adopted as the output node of the bridge arm; the output node of the first bridge arm is connected with the left node of the A-phase stator winding of the open-winding motor, and the output node of the second bridge arm is connected with the right node of the A-phase stator winding of the open-winding motor and the left node of the B-phase stator winding of the open-winding motor; the output node of the third bridge arm is connected with the right node of the B-phase stator winding of the open-winding motor and the left node of the C-phase stator winding of the open-winding motor; and the output node of the fourth bridge arm is connected with the right node of the C-phase stator winding of the open-winding motor. With the driver topological structure for the open-winding motor of the invention adopted, the power density of a driver can be improved, and the working performance ofthe motor can be ensured.

The invention discloses a method for manufacturing an afebrile array wave-guide grating based on flat-plate wave-guide movement, which comprises the following steps that a common silicon-based silica array wave-guide grating chip is divided into a first part and a second part along a cutting line for inputting a flat-plate wave guide or a cutting line for outputting the flat-plate wave guide on the array wave-guide grating chip; a temperature compensating rod spans the cutting line of the array wave-guide grating chip and is fixed with the surfaces of the first part and the second part of the array wave-guide grating chip; and the expansion and contraction of the temperature compensating rod drive the first part and the second part to move relatively, so as to compensate wavelength shift caused by the temperature and manufacture the afebrile array wave-guide grating. The method doses not adopt a substrate. The first part a and the second part b are placed on a six-axes precision fine tuning bracket to be fully and freely adjusted in six directions; the device cost is reduced; the processing steps are simplified to the maximum degree so that the manufacture of the device is easy to implement; deterioration of the performance of the device is reduced to the maximum degree; and the stability is strong.

A method of evaluating a thickness of a film during a polishing process includes the steps of irradiating light onto a surface of the film during the polishing process; obtaining a differential signal of reflection spectra at a polishing time t and a polishing time t−Δt with a time difference Δt from the polishing time t; and analyzing the differential signal to obtain a thickness d of the film at the polishing time t.

A device for sensing, locating, and characterizing a radiation emitting source, including: a detection crystal having dimensions great enough such that regional differences in radiation response are generated in the detection crystal by radiation impinging on one or more surfaces of the detection crystal; and a plurality of detectors one or more of coupled to and disposed on a plurality of surfaces of the detection crystal operable for detecting the regional differences in radiation response generated in the detection crystal by the radiation impinging on the one or more surfaces of the detection crystal.

A light-emitting device having first electrodes, a dielectric layer, a phosphor layer, and second electrodes layered sequentially on a substrate, the dielectric layer is made from a dielectric composed of a crystalline material with a perovskite structure where the lattice constant of the c-axis is greater than the lattice constant of the a-axis obtained by x-ray diffraction.

The present invention provides a method, an apparatus and a system for data transmission. The method includes: receiving processed first microwave data information that is received through a microwave antenna; performing multiplexing through a preset rule on the first microwave data information and processed first radio frequency data information that is received through a base station antenna, and sending multiplexed information to a baseband unit, so that the baseband unit sends the first microwave data information to a microwave indoor unit. In the method, the apparatus and the system for data transmission, microwave data information and radio frequency data information are multiplexed, and then multiplexed information is transmitted together. The microwave data information can be transmitted through a transmission medium between base station devices, such as a fiber, thereby saving connection cables between microwave transmission devices and reducing a device cost and an installation cost of the microwave transmission devices.

The present invention, which relates to a multi-path communication device for sharing a feedback path for digital pre-distortion, includes: a DPD processing unit configured to output a plurality of pre-distorted signals by respectively pre-distorting a plurality of input signals, to output an n^th control signal when an n^th input signal is input, and to output an n^th pre-distorted signal using an n^th feedback signal input in response to the n^th control signal; a power amplifying unit configured to amplify each of the plurality of pre-distorted signals and output a plurality of amplified signals; a signal combining unit configured to combine some of each of the plurality of amplified signals and output combined feedback signal; and a signal selection unit configured to select and output only the n^th feedback signal from the combined feedback signal according to the input n^th control signal, thereby preventing an increase in the size of a device and manufacturing cost thereof caused by a plurality of DPD feedback paths.

The invention relates to the field of new energy, and particularly relates to a preparation method of a pre-embedded lithium cathode and the prepared pre-embedded lithium cathode, an energy storage device, an energy storage system and electric equipment. The preparation method of the pre-embedded lithium cathode comprises the following steps: providing a semi-battery, and charging or discharging the semi-battery, wherein the working electrode of the semi-battery is a metal material, the counter electrode is a material capable of providing a lithium source, and the electrolyte is a lithium saltsolution containing an additive; the metal material comprises a metal, an alloy or a metal composite material capable of carrying out alloying reaction with lithium ions; the additive includes a substance capable of decomposing and forming an SEI film on the surface of the metallic material. The method is simple in process and low in cost; an SEI passivation film can be formed on the surface of the metal material, so that volume expansion and pulverization of the cathode can be avoided, thereby improving discharge capacity and cycle performance.

The present disclosure involves a system for monitoring patients, and more specifically post-operative patients receiving narcotics/sedatives/opioids, and a novel apparatus for automatically delivering one or more substances such as a reversing agent, including but not limited to the agent commonly known as naloxone, in response to dangerous respiratory conditions such as respiratory depression or other undesired consequences caused by reaction to another dosage being delivered to the subject.

In a three phase inverter device, a smoothing capacitor, a bus bar at a positive electrode side and a bus bar at a negative electrode side are formed on a first surface of the circuit substrate. Electronic s components containing a microcomputer, etc., a differential wiring pattern, a single wiring pattern and a current wiring pattern are formed on a second surface of the circuit substrate. A ground pattern is formed in the inside of the circuit substrate in order to separate the electronic components, the differential wiring pattern, the single wiring pattern and the current wiring pattern from the smoothing capacitor, the bus bar at the positive electrode side and the bus bar at the negative electrode side.

The present invention relates to a dual-mode dividing wall column capable of mode switching between a dividing wall column operating mode and a conventional column operating mode, and a distillation method using the dual-mode dividing wall column, wherein when compared to the existing conventional column, the invention can reduce device costs and energy and improve productivity. Furthermore, since a mutual conversion between a dividing wall column operating mode and a conventional column operating mode is enabled without shutting down a process, an economic loss which can occur during shutdown caused by the malfunction of a device can be prevented.

Provided is a power factor correction circuit capable of reducing ringing sound of a transformer produced when an overshoot protection is effected. An output voltage control circuit performs constant voltage-control such that capacitor charge voltage of an output capacitor corresponds to a first voltage value, and when the capacitor charge voltage of the output capacitor reaches a second voltage value higher than the first voltage value, an overvoltage detecting unit detects the second voltage value. Further, a current limiting unit detects a value of a switching current through a switching element, and determines a limiting value of the level of the switching current. Then, the switching current is limited to the limiting value, and when an overvoltage detecting unit detects the second voltage value, a limiting value changing unit causes the current limiting unit to change the limiting value to decrease the value of the switching current.

The present invention pertains to a process for determining the internal temperature of a catalytic converter of a vehicle equipped with a heat engine. According to the present invention, such a process is characterized in that this temperature is determined by calculating the mean value of exhaust gas temperature measurements carried out before the admission of these gases into the catalytic converter over a limited period of time, these measurements being weighted by a variable that is a function of the oxidation activity of the catalytic converter.

The embodiment of the invention provides a gangue visual recognition device and method. The device comprises firmware, a light source, an image collector and processing equipment, wherein the firmwareis used for fixing the light source and the image collector; the light source is used for providing illumination, so that gangue images are collected by the image collector conveniently; the processing equipment is electrically connected to the image collector for processing the gangue images collected by the image collector so as to recognize gangue. The image collector is a CMOS camera. Therefore, the cost can be lowered, and gangue can be quickly recognized.

The invention belongs to the power electronics technology field and especially relates to a diode clamping hybrid MMC circuit with a self-voltage-sharing capability. A bridge arm of the MMC circuit isconnected in series with a plurality of hybrid circuit sub-modules Hybrid SM. Each hybrid circuit sub-module Hybrid SM is composed of a half-bridge sub-module HBSM, a full-bridge sub-module D-FBSM and a clamping diode D1. A negative electrode of the clamping diode D1 is connected with a positive electrode of a capacitor C1 of the half-bridge sub-module HBSM, the positive electrode of the clampingdiode D1 is connected to the positive electrode of a capacitor C2 of the full-bridge sub-module D-FBSM, and the negative electrode of the half-bridge sub-module HBSM is connected with the positive electrode of the full-bridge sub-module D-FBSM. When the clamping diode D1 is conducted, automatic voltage sharing in a cascade unit is realized; and under a fault condition, a capacitor of the half-bridge sub-module is reversely connected in series into a fault loop and acts with the capacitor of the full-bridge sub-module to remove a fault current.

Disclosed is an automatic cutoff apparatus that automatically cuts off a power source in a space where people go in and out when it is confirmed that no one is in the space. The apparatus includes: an entrance sensor; at least one moving object sensor; a controller connected to the entrance sensor, the moving object sensor, and configured to cut off the resources in the specific object device when the entrance sensor senses a passage of a moving object but the moving object sensor does not sense a presence of the moving object.

A method for single sheet integrated component of SOA+EA+SSC includes applying three times of LP-MOVPE on said component as one time being a selective epitaxial growth, obtaining different growth rate at SOA and at EA as SOA being rich In growth with growth rate greater than EA region and band gap width less than EA region when selective epitaxial growth is applied, selecting different mask width and different growth pressure as well as temperature to obtain wavelength offset regulation amount required by user.

The invention discloses an electric system of a combined copying lathe machine for simultaneously turning and milling internal and external circles of a piston ring. The electric system comprises an embedded type integrated industrial personal computer, a programmable logic controller (PLC), a first frequency converter, a second frequency converter and a servo amplifier. In the machine tool electric system disclosed by the invention, a touch screen (namely the embedded type integrated industrial personal computer) is taken as a center, two communication interfaces of the PLC are fully utilized at the same time to structure two communication links, wherein the touch screen, the PLC and the servo amplifier constitute the first communication link, and the touch screen, the first frequency converter and the second frequency converter constitute the second communication link, so that the frequency converters and the servo amplifier are prevented from being connected onto the same communication link skillfully and the contradiction generated because different communication protocols cannot be operated is avoided.

The invention discloses a rotary external guiding and internal fixing configuration configuring device for the femoral head and neck. The configuring device comprises a guide sleeve (1), a rotating sliding block (2), a connecting guide rail (3), a locking nut (4), an installing plate (5) and an indicator pointer (6). A guide needle hole (11) is formed in the center of the guide sleeve (1), a hollow groove (22) is formed in the rotating sliding block (2), the connecting guide rail (3) comprises an arc part (31) and a plane part (32) connected with the arc part (31), the included angle beta between the chord of the arc part (31) and the plane where the plane part (32) is located is 110-140 degrees, a long-striped slotted hole (33) is formed in the arc part (31), and the plane part (32) and the installing plate (5) are fixedly connected. In cooperation with the imaging technology, the configuring device can effectively improve the accuracy of positioning a guide needle in a femoral head and neck operation, and the position of the guide needle can be checked and located noninvasively.