650results about How to "Improve charging efficiency" patented technology

The invention discloses a charging adapter, a terminal and a charging control method, and aims to solve the problem that the charging current is difficult to increase in the prior art. The charging adapter comprises an alternating-current transformer, a direct-current transformer, an external charging chip and a micro controller. The output end of the alternating-current transformer is connected with the direct-current transformer and the external charging chip. The micro controller is used for causing the alternating-current transformer to provide direct-current output and causing the direct-current transformer to carry out direct current transformation and output after the charging adapter and the terminal are effectively connected, and used for causing the external charging chip to charge the terminal after handshake connection between the charging adapter and the terminal is established. By adopting the charging adapter provided by the embodiment of the invention, the charging current can be increased, and the charging efficiency can be improved.

The invention belong to the technical fields of low-voltage power distribution and power electronics, and relates to a battery charging and replacing station for electric vehicles. In the battery charging and replacing station for the electric vehicles, battery replacement and separated-box charging take the priority and entire vehicle charging takes the secondary. The battery charging and replacing station can satisfy the requirement of replenishing electric energy for large-size commercial vehicles and small-size passenger vehicles. In addition, a warehousing type automatic battery replacing system is adopted so that the functions of automatic battery replacement and automatic warehousing in/out management are achieved, and a separated-box charging system can be used for charging the batteries.

The invention discloses a single/multi-layer magnetic conductive sheet for wireless charging and a preparation method thereof. The single-layer magnetic conductive sheet comprises a layer of magnetic slice. Multiple strips of cracks are uniformly distributed on the slice and divide the slice into multiple fragment units. Gaps of the cracks are filled with insulation medium, so fragment units on two sides of the cracks are mutually insulated. The single-layer magnetic conductive sheet also comprises a double-faced adhesive tape which is adhered to one face of the magnetic slice. A protection film formed by the insulation medium is formed on the other face of the magnetic slice. The preparation method comprises steps of heat treatment, adhesion of the double-faced adhesive tape, crack processing, gum dipping processing and drying and curing processing. According to the invention, inductance value and quality factor of a charging coil are increased, charging efficiency is increased and loss is reduced. The continuously prepared magnetic conductive sheet is characterized by controllable magnetic conductivity, continuous production, convenient operation and simple insulation processing.

The present invention discloses a lead-acid battery charging method, multiple charging modes are set. In the normal mode, according to battery capacity, charge batteries in multi-stages. The corresponding charger is disclosed which comprising of: high-power switch power supply, switch circuit, impulse charge-discharge circuit, voltage and current detecting circuit, charge mode switch module and micro-processor. Comparing to present technique, the present invention sets multiple charge modes, charges in multi-stages, meets the charge requirement in all different conditions furthest, and benefits for prolonging the service life of lead-acid battery. The pulse charge-discharge circuit of present invention realizes discharge energy circumfluence by capacitance serial-parallel conversion, uses high inductance converting steep wave pulse to ladder-type pulse, comparing to traditional pulse charge-discharge circuit using big resistance charge and discharge, reduces the energy loss and loss of rapid pulse to lead-acid battery electrode slices.

The invention provides a wireless charging sending device, a wireless charging system and a charging control method thereof. The sending device comprises an emission coil used for emitting electricity energy of the sending device, an oscillating and frequency-modulating module used for enabling the emission coil to generate LC resonance and modulating the capacitance in the LC resonance so as to change the resonance frequency of the LC resonance, an emission end sampling module used for collecting voltage and currents of the sending device, a first control module used for controlling the resonance frequency of the LC resonance in the oscillating and frequency-modulating module and controlling the charging energy sending process according to the collected voltage and the collected currents of the sending device, the voltage of a receiving device and resonance frequency corresponding to the highest charging efficiency, a first communication module used for wireless communication between the sending device and the receiving device, and a power supply module. The sending device, the charging system and the charging control method can realize the adjustment of the resonance frequency of the LC resonance so as to have the advantage of improving the charging efficiency of the charging system.

In a stacked display device with light-emitting units composed of organic layers and stacked together, the use of a stable material in at least a portion of a charge generation layer makes it possible to achieve improvements in environmental stability and also to attain an improvement in the efficiency of injection of charges from the charge generation layer into the light-emitting units. The display device can be readily fabricated. In a display device (11) provided with a plurality of light-emitting units (14-1)(14-2), each of which includes at least an organic light-emitting layer (14c), stacked together between a cathode (16) and an anode (13), and also with a charge generation layer (15) held between the respective light-emitting units (14-1)(14-2), at least a portion of the charge generation layer (15) is composed of an oxide or fluoride which contains at least one of alkali metals and alkaline earth metals.

The invention provides a formula and preparation method of a high energy storage lead-acid battery lead paste and relates to the technical field of lead-acid batteries. The formula of a positive plate lead paste comprises the following raw materials: 7-8.5% of dilute sulphuric acid, 10.2-10.8% of deionized water, 0.2-0.4% of colloidal graphite, 0.8-2% of red powder, 0.06-0.09% of stannous sulfate, 0.05-0.08% of polyester staple fiber and the balance of lead powder; the formula of a negative plate lead paste comprises the following raw materials: 6.8-7.5% of dilute sulphuric acid, 9.8-10.8% of deionized water, 0.2-0.4% of acetylene black, 0.2-0.3% of humic acid, 0.8-1.0% of barium sulfate, 0.08-0.1% of barium stearate, 0.15-0.18% of sodium lignosulphonate, 0.06-0.09% of polyester staple fiber and the balance of lead powder. The battery prepared by the lead paste has the advantages of high initial capacity and long cycle life; and the overdischarge resistance and charge acceptance of the battery are higher than the standard requirements.

The invention provides a laser positioning intelligent connection electric vehicle wireless charger and transceiver system which comprises an emitting part which is formed by a wireless charging cabinet (1), a positioning pole (2), an ultrasonic longitudinal positioning device (3), a laser transverse positioning device (4), an electric driving longitudinal movement positioning mechanism (5), an electric driving transverse movement positioning mechanism (6), an intelligent connection lifting and positioning device (7), a connection information integrated sensor (8), an induction launcher (9) and a sliding base (10). The system also comprises a receiving part which is formed by an induction receiving device (11), a digital positioning target (12), a rectifier and output power distribution unit (13) and an electric quantity display screen (14). The system is equipped with a laser automatic positioning and intelligent automatic connecting device, when a driver parks for wireless charging at a parking place, finding a wireless charging accurate position is not needed, only driving a vehicle to the parking plate as usual is needed, the highly efficient wireless charging can be realized, and the system has the advantages of worry saving and labor saving, high charging efficiency, and small high frequency leakage.

The invention discloses an automatic charging system based on a snakelike-simulated mechanical arm. The automatic charging system comprises the snakelike-simulated mechanical arm, a charging device and a control system, and further comprises all control and execution modules, the control and execution modules are mutually matched, and whether to-be-charged vehicles exist or not can be automatically induced through a vehicle induction module; a charging-port pre-alignment module identifies charging ports through installed sensors, and general orientations of the charging ports are preliminarilycalculated; a main control module of a microcomputer is prepared, and is installed in a charging pile base, and the main control module controls the mechanical arm to clamp charging guns to move in the pre-alignment direction; an accurate alignment module of a snakehead-simulated joint accurately determines positions of the charging ports through the corresponding sensors and charges the to-be-charged vehicles. According to the automatic charging system based on the snakelike-simulated mechanical arm, vehicle using experiences of new-energy vehicles and automatic guide vehicles are greatly improved, the automatic charging requirements of automatic sites such as automatic-parking-place vehicles are met, a complete automatic parking and automatic inter-vehicle service system is formed, thelabor cost is greatly reduced, and the running efficiency is improved.

The invention discloses a mobile terminal of automatically setting a charging current and an implementation method thereof. The mobile terminal is provided with a charging port, wherein the charging port comprises a charging circuit, a PMIC (Power Management Integrated Circuit) module provided with the charging current, a first voltage detection module used for detecting a charging voltage, a current detection module used for detecting the charging current, and a second voltage detection module used for detecting the output voltage of a charger. The mobile terminal can obtain the maximum charging current of the charger through the second voltage detection module detecting the output voltage of the charger in real time and the PMIC module judging if the voltage is more than the preset voltage of the mobile terminal. Besides, the maximum charging current is set as the final charging current of the mobile terminal, and the charging efficiency of the mobile terminal is improved. When charged, the mobile terminal can automatically set the charging current according to chargers of different powers, and can realize electric compatibility.

A power supply system includes: a first electrical storage device; a charging device charging the first electrical storage device with external power from an external power supply; a second electrical storage device supplying an auxiliary load with a voltage lower than an output voltage of the first electrical storage device; a first converter stepping down a voltage of power from the first electrical storage device and supplying the auxiliary load and the second electrical storage device with a voltage; a second converter having a capacity smaller than that of the first converter and charging the second electrical storage device with the external power; and a controller, when the external power is charged, controlling charging power from the charging device to the first electrical storage device and charging power from the second converter to the second electrical storage device based on a state of charge of the second electrical storage device.

The invention discloses a robot charging method and device. The method includes performing image collection on a charge mark arranged on a charge pile through a camera of a robot; determining the position and attitude angle of the robot in an overall coordinate system according to the collected charge mark image; leading the robot to a preset guide position according to the position and attitude angle; controlling the robot to move from the guide position to the charge pile and charging the robot. The technical scheme provided by the invention improves robot charging efficiency.

A gate driving unit includes an input circuit, a pull-up circuit, a reset circuit, and an output circuit. The pull-up driving signals received by the input circuit include the gate driving signals for pixel units of row n−2 and row n+4. The reset driving signals received by the reset circuit include the gate driving signals for pixel units of row n+2 and row n+8. The gate driving signals output from the output circuit include the gate driving signals for pixel units of row n and row n+6. Where, n is a positive integer and nε[3,∞). The gate driving unit can output gate driving signals of two rows of pixel units and thus has a high service efficiency. An area occupied by a gate driving circuit made of the gate driving units is reduced, and a driving efficiency of the gate driving circuit is increased.

The invention discloses a wireless charging method and system of an electric vehicle. The charging method comprises the following steps that firstly, preparatory work is conducted, wherein a wireless transmitting device is arranged on the ground of a parking area, electric vehicle guide rails are arranged on the two sides of the parking area and are each provided with a set of pressure sensor arrays, and a wireless receiving device is arranged on the bottom of the electric vehicle in a lifting mode through a lifting device; secondly, charging position alignment of the electric vehicle is conducted through the pressure sensor arrays; thirdly, the electric vehicle executes charging operation, wherein the wireless receiving device drives the lifting device to descend the wireless receiving device towards the wireless transmitting device to enable the wireless receiving device to get close to the wireless transmitting device, and energy transmission maximization is achieved.

The invention discloses a no-parking system and method for a highway. A payment system comprises a payment device and a lane control device; the payment device comprises a payment terminal, a charging server and an online payment server; the lane control device comprises a lane control computer, a vehicle license plate recognition device and a peripheral lane device. The payment method includes the steps that first, a user logs in the charging server; second, the user looks up a vehicle information database and a highway section charging information database through a handheld terminal or a network terminal so that the amount of money needing to be prepaid can be obtained; third, the user logs in a third-party payment system on the online payment server through one of the handheld terminal and the network terminal, and the user prepay the amount of money to the charging server after successfully logging in the third-party payment system. According to the system and method, the vehicle license plate recognition technology, the network payment technology and the lane control technology are combined, and the no-parking charging function of the highway is achieved well.

The invention discloses a charging scheduling system based on an electric vehicle charging priority and a method thereof. The system comprises a child node apparatus and an anchor node device. The sub-node apparatus is installed on a child node charging pile and is used for collecting charging pile data. The anchor node device is installed on an anchor node charging pile and is used for data integration and processing, executing a charging scheduling algorithm, processing user feedback information and carrying out charging scheduling. According to a position of an anchor node, area division is performed. One anchor node manages several child nodes. Data collection and operation efficiency are increased. By using the charging scheduling algorithm, according to information of an electric vehicle and the charging pile, charging priority degree assessments are performed twice; global comparison is performed on a final priority degree assessment value; relative priorities of the electric vehicle on each reachable charging pile are determined so that global solution is realized. By using the system and the method in the invention, a utilization rate of a charging pile resource and charging efficiency of the electric vehicle are increased; and charging system performance of the electric vehicle is improved.

The present invention provides a mobile terminal which, when wireless (contactless) charging of a battery is performed by approximating a transmission coil of a charging unit (charging pad) and a reception coil provided in a wireless charging module of a mobile terminal, can adjust the saturation magnetic flux density and eddy currents of a shield sheet to which the reception coil is attached, the shield sheet being provided in the wireless charging module. When the reception coil is placed on the shield sheet to perform wireless charging, the saturation magnetic flux density and eddy current generation in the shield sheet are adjusted for wireless charging purpose because a part of the region in which the magnetic flux density is most quickly saturated was clipped off from the shield sheet. Thus, charging efficiency can be increased, and the problem of heat generation of the shield sheet can be effectively.

A power supply circuit supplying power to a charge control circuit charging a secondary battery is disclosed. The power supply circuit includes a direct-current power supply configured to generate and output a predetermined voltage; and a DC-DC converter configured, to detect the voltage of the secondary battery, convert the predetermined voltage input from the direct-current power supply into a voltage according to the detected voltage of the secondary battery, and output the converted voltage to the charge control circuit.

A power supply system or a vehicle includes: a first storage device; a charging device charging the first storage device with external power; a second storage device supplying an auxiliary load with a voltage lower than an output voltage of the first storage device; a first converter stepping down a voltage of power from the first storage device and supplying the auxiliary load and the second storage device with a voltage; a first controller controlling the charging device; a second converter smaller in capacity than the first converter, supplying the first controller with a voltage and charging the second storage device with the external power; and a second controller, when the external power is charged, controlling the first and second converters to selectively operate any one of the first and second converters based on a state of charge of the second storage device and a state of the auxiliary load.

The embodiment of the invention discloses a non-stop toll collection method and a vehicle toll collection system which automatically complete toll collection without stopping a vehicle, do not need to use an ETC device or scan a code, and improve toll collection efficiency. The method comprises steps that the vehicle toll collection system firstly receives a first toll collection instruction sent by a vehicle license recognition device after the vehicle license recognition device captures the license number corresponding to the vehicle at a toll gate entrance, wherein the license number corresponding to the vehicle is bound to an electronic payment account; the vehicle toll collection system charges the license number according to the first toll collection instruction; the vehicle toll collection system receives a second toll collection instruction sent by the vehicle license recognition device after the vehicle license recognition device captures the license number corresponding to the vehicle at a toll gate exit; the vehicle toll collection system generates an electronic payment receipt of the license number according to the second toll collection instruction; and the vehicle toll collection system deducts the charge from the electronic payment account bound to the license number according to the electronic payment receipt.

The invention discloses a super-wide-temperature-range nickel-hydrogen battery. The battery comprises an iron shell as well as a nickel electrode, a hydrogen electrode, a diaphragm and an electrolyte solution mounted in the iron shell, wherein the nickel electrode takes foam nickel as a substrate material; the space in foam nickel is filled with a positive electrode active substance Ni(OH)2, a conductive agent, an additive and a binder; the hydrogen electrode takes a porous nickel-plated steel belt, a copper net or foam nickel as a substrate material; the porous nickel-plated steel belt, the copper net or foam nickel is coated with a negative electrode active substance, namely, hydrogen storage alloy powder, the conductive agent, the additive or the binder; and the electrolyte solution is a mixture of a potassium-rich alkaline aqueous solution and sodium tungstate or tungstic acid crystals. The invention furthermore discloses a manufacturing method for the super-wide-temperature-range nickel-hydrogen battery. According to the super-wide-temperature-range nickel-hydrogen battery disclosed by the invention, the ratio of 0.2C discharge capacity to normal-temperature capacity maximally can reach 70-80% in an environment with the temperature of -45 DEG C; and the ratio of 0.2C discharge capacity to normal-temperature capacity of the nickel hydrogen battery maximally can reach 85-95% in an environment with the temperature of 70 DEG C. Moreover, the manufacturing method is simple and suitable for large-scale production.

A method includes applying a signal to a primary coil of an external charging device. The signal causes the primary coil to inductively couple to a secondary coil of an implantable medical device that is implanted within tissue of a patient. The method also includes measuring a current at the primary coil. The method further includes estimating a depth of the implantable medical device within the tissue of the patient based on the measured current.

The invention relates to a system and method for vehicle power supply. The system comprises a main battery, an auxiliary power source, an external charging interface, an energy conversion unit, a control unit and a drive unit, wherein the main battery is a storage battery; the external charging interface is connected with the power source to acquire electric energy; the energy conversion unit is respectively connected with the main battery, the auxiliary power source, the drive unit and the external charging interface; and the control unit is used for controlling the main battery, the auxiliary power source, energy conversion unit and the drive unit, thereby realizing energy management and vehicle driving. The invention is characterized in that the auxiliary power source is an infrequently-used component, and is installed in the installation space of the auxiliary power source only when necessary; and when the auxiliary power source is installed, the operation mode of the energy conversion unit comprises at least one of the following: a main battery independent operation mode, an auxiliary power source independent operation mode, and a main battery/auxiliary power source common operation mode.

The invention provides a bootstrapping diode artificial circuit in a half-bridge driving circuit. An electrical level displacement and a simple charge pump are added into a grid driving circuit structure in an existing bootstrapping diode artificial circuit; when a grid driving input signal is a low electrical level, grid voltage output to an N-channel LDMOS (Lateral Diffusion Metal Oxide Semiconductor) transistor LD1 by a grid driving circuit is a low electrical level; the N-channel LDMOS transistor LD1 is turned off. When the grid driving input signal is a high electrical level, the grid voltage output to the N-channel LDMOS transistor LD1 by the grid driving circuit is a high electrical level so that the grid voltage of the N-channel LDMOS transistor LD1 is improved, the conduction resistance of the LD1 is reduced and the charging current to a bootstrapping capacitor is improved.

The embodiment of the invention discloses an array substrate line drive unit and circuit, and a liquid crystal display panel. An output end of a pull-up control module of an array substrate line driveunit, a control end of a pull-up module, a first end of a pull-down maintenance module, a first end of a pull-up module, a control end of a signal download module and a first end of a bootstrap module are connected with a gate signal point, a second end of the pull-down maintenance module, a second end of the pull-down module, a second end of the bootstrap module and an output end of the pull-upmodule are connected with a horizontal scanning line, a third end of the pull-down maintenance module and a third end of the pull-down module are connected with a first level signal line, a fourth endof the pull-down maintenance module and a fourth end of the pull-down module are connected with a second level signal line, an input end of the pull-up module and an input end of the pull-down moduleare connected with a clock signal line; and the voltage of the first level signal line is smaller than the voltage of the second level signal line. The array substrate line drive unit and circuit, and a liquid crystal display panel can shorten the fall time of the gate signals and can improve the charge efficiency.

The embodiment of the invention provides a charging method, assembly and terminal. The method comprises the steps that a charging module assembly receives an input current of a power supply device, wherein the charging module assembly comprises at least two charging modules; the charging module assembly controls the input current through the charging modules to generate an output current, wherein the output current comprises charging currents generated when the charging modules of the charging module assembly control the input current; the charging module assembly outputs the output current to a battery of the terminal. According to the charging method, assembly and terminal, heat dissipation efficiency and charging efficiency can be improved.

A charging control device includes a capacitor, a comparison unit and a switching unit. The capacitor is charged with a voltage converted from power received from a wireless power sending device. The comparison unit compares the voltage of the capacitor with a reference voltage, and generates an output signal according to the result of the comparison. The switching unit is connected to the front end of the capacitor and is switched by the output signal from the comparison unit so as to control whether to supply the converted voltage to a load terminal.

The invention discloses a charging method and a charging device. The method is applied to a charging unit, which is connected with a power supply unit and is capable of outputting different current. The method comprises the following steps of: performing trial charging on a battery with preset initial output current; judging whether output voltage meets preset conditions to obtain a first judging result, wherein the preset conditions at least comprise that the output voltage is greater than preset voltage which is minimum voltage capable of charging the battery; and when the first judging result indicates that the output voltage does not meet the preset conditions, adjusting the output current of the charging unit so as to enable the output voltage to meet the preset conditions. With the method and the device, the output current of the charging unit can be adjusted according to different rated power and different types of power supplies, and thus the charging efficiency is improved under the precondition that normal charging can be ensured.

The embodiment of the invention discloses a method and a device for charging through a universal serial bus (USB) interface. The method comprises the following steps of: connecting a device to be charged with a power supply device through the USB interface; closing communication between a USB module and the power supply device; and charging the device to be charged by the power supply device through a power line on the USB interface. In the technical scheme of the invention, the communication between the USB module and the power supply device is stopped and the device to be charged is charged through the USB interface. In the method, the communication work of the USB module is stopped, so the USB module does not need to be always under a working condition when the device is charged through the USB interface; and the CPU of the device to be charged can stop working to make all current used for charging so as to improve the charging efficiency.

The invention discloses a multi-battery charging method and device and a handheld mobile terminal, and the multi-battery charging method and the device are used for increasing the charging efficiency of a plurality of batteries, so that the batteries of equipment, such as the handheld mobile terminal, can be charged through one control unit. The multi-battery charging method provided by the invention comprises the following steps of: detecting the voltage of each battery; comparing the voltage of each battery with preset thresholds, and selecting charging manners for the batteries according to comparative results; and charging the batteries by adopting the selected charging manners.