100results about How to "Fast charging" patented technology

The invention discloses a method for charging and starting a three-phase modular multilevel inverter in a self-excitation way under the condition of no need of an auxiliary DC power supply. In the method, by adopting interphase currents generated by line voltages of an AC system among converter bridge arms, the process of charging capacitors of all the submodules on the bridge arms is completed by controlling switching on and switching off an upper electronic power switch and a lower electronic power switch in the submodules of all the bridge arms when current directions of the bridge arms and capacitor voltages of all the submodules are detected; and all the bridge arms can be simultaneously charged, so that the three-phase modular multilevel inverter can be quickly and normally started in the self-excitation way.

The Centralized Vehicle Load Management System is hierarchical in nature in that it detects and remediates an overload which can be highly localized at one or more electrical substations or an overload which is widely distributed as a cumulative set of sub-critical loads. The Centralized Vehicle Load Management System operates to determine the load presented to the Electric Power Grid by vehicles which are served by service disconnects which are located at a plurality of points on the Electric Power Grid. The Centralized Vehicle Load Management System regulates the demands presented by the vehicles to the E-Grid thereby to spread the load presented to the Electric Power Grid over time to enable the controllable charging of a large number of vehicles.

A temperature compensated constant voltage battery charging algorithm charges batteries quickly and safely. Charging algorithms also include methods to recondition batteries after storage and to correct cell imbalances in a battery pack. A battery charger able to perform these functions is also disclosed.

The embodiment of the invention provides a battery voltage-multiplying charging circuit and a mobile terminal. The charging circuit comprises a charging port, a high-voltage charging unit, a low-voltage charging unit, a battery pack and a system. The battery pack includes a main battery and at least one extra battery; the high-voltage charging unit and the low-voltage charging unit are connected with the charging port, and the low-voltage charging unit is connected with the system and the battery pack; the high-voltage charging unit is connected with the battery pack; when quick charging is performed, the main battery and each extra battery are switched to be a series connection state, the charging voltage is transmitted to the high-voltage charging unit and the low-voltage charging unit through the charging port, the main battery and each extra battery are charged by the high-voltage charging unit, and the system is charged by the low-voltage charging unit; and when the charging is completed, the main battery and each extra battery are switched to be a parallel connection state and configured to charge the system. The battery voltage-multiplying charging circuit provided by the embodiment of the invention is able to avoid the problem that the battery body is heating and too high in temperature in the charging process.

The invention relates to a charging method of a lithium ion battery, which belongs to the technical field of battery charging and can be used for computing the value change of the polarizing voltage of the battery by a calculation formula of the polarizing voltage of the battery, wherein the calculation formula is that UP=UO-UOCV-UR=UO-f(SOC)-I*Rd. The polarizing voltage is controlled to be within a certain numerical value range for ensuring that aberration produced on a charging voltage curve is invariant. The corresponding charging current of the battery in different SOC (State of Charge) and the same polarizing voltage during charging is automatically regulated so that the charging speed of the battery is controllable. On the premise of ensuring the service life of the battery, the charging method largely enhances the charging speed of the battery. Simultaneously, the charging time is shortened, thereby enhancing the utilization efficiency of the battery, reducing the quantity of standby battery packs in the replacement mode of the battery and providing conditions for the scale application of electric vehicles.

The invention provides an active matrix organic light emitting diode (AMOLED) pixel unit driving circuit, an AMOLED pixel unit driving method, a pixel unit and a display device. The AMOLED pixel unit driving circuit comprises a switch unit, a storage capacitor, a driving thin film transistor, a current mirror thin film transistor and a voltage share thin film transistor, wherein the first input end of the switch unit is connected with a current source for supplying charging current; the second input end of the switch unit is connected with an OLED; the first end of the storage capacitor is connected with the output end of the switch unit; the second end of the storage capacitor is connected to a low level; gates of the driving thin film transistor and the current mirror thin film transistor are connected with the first end of the storage capacitor, and sources of the driving thin film transistor and the current mirror thin film transistor are connected to the low level; and the gate of the voltage share thin film transistor is connected with the first end of the storage capacitor, the source of the voltage share thin film transistor is connected with the drain of the driving thin film transistor, and the drain of the voltage share thin film transistor is connected with the OLED. By adopting a current mirror structure and a voltage share mode, the zooming proportion of the charging current Idata to current Ioled flowing through the OLED is relatively large, so that the Ioled is in a working current range of the OLED, and the Idata may be relatively high; and therefore, the charging speed of the storage capacitor is increased.

A battery charger with an internal power storage device may be used to facilitate fast charging of a battery by using a high C-rate. A battery charger with an internal power storage device may include a control circuit that receives operating mode instructions to operate in a base charging mode or a fast charging mode. In the base charging mode, the battery charger may be configured to concurrently charge a battery and an internal power storage device at a base C-rate using current supplied from an external power source. In the fast charging mode, the battery charger may be configured to charge the battery at a high C-rate, which is substantially higher than the base C-rate, by using the internal power storage device. The battery charger may include an optical reader used to identify battery-specific characteristics and enable the fast charging mode.

A capacitor based energy storage system (CBESS) and methods of using it are disclosed. The CBESS uses meta-capacitors in its capacitive energy storage devices (CESD) to configure capacitive energy storage cells (CESC), which are used to configure capacitive energy storage modules (CESM) to achieve the CBESS's function as an uninterruptible power supply. The CBESS is connected to a power generation system (PGS), a load, and a power grid. When the grid is in an abnormal state, the CESM is simultaneously charged with power from the PGS and used to supply power to the load. If a remaining amount of power of a CESM is less than a predetermined level, the CESM is charged with power from PGS or grid. The CBESS interfaces with a computer system or network to buy or sell electricity to the grid depending on grid electricity cost and CESD charging states.

Various embodiments of charging stations are described that are configured to charge a plurality of electric lights or other devices. The charging stations can be multi-level to allow for charging of many candles while limiting the space required by the stations. The charging stations can be modular to allow them to be dynamically adapted to the varying needs of a user.

The invention discloses a charging method and electronic equipment. The charging method includes the steps that the voltage of a battery of the electronic equipment is monitored in real time; when the voltage of the battery is within a low voltage range and the electronic equipment needs to be charged, the battery is charged according to a first charging rule, wherein the first charging rule comprises at least two charging stages. According to the technical scheme, the technical problem that according to electronic equipment in the prior art, neither the service life of a battery nor the energy density of a battery core can be guaranteed is solved, and the charging speed of the initial stage is increased.

A battery charger to charge batteries with different capacity cells. A single battery charger is capable of charging different types and different capacity battery cells by detecting battery chemistry. The charger can detect different batteries inserted into the charger and properly charge the different batteries based on optimal charging current for the particular type of cell.

The invention discloses a quick charging method for improving storage battery specific capacity, belonging to the field of batteries. On the basis of quick charging from constant current I1 to stopping at U1, the method of the invention reduces quick charging flow I1 to I2, converts to constant-voltage charging after the voltage is charged to U1 and stops charging until that the current is reducedto Iz. I0 is battery 1C multiplying power current, and n is an integer selected from 1-I2/I0. Iz is as follows: Iz= I1/m, wherein, m is a positive integer not smaller than 2. The invention can be manufactured into a charger and is simple, effective, practical, easy to popularize and quick to charge and can charge electric quantity as much as possible.

In an electric system including a first converter and a second converter connected in parallel, an ECU executes a program including a step of selecting a charging mode for a first battery pack connected to the first converter and a charging mode for a second battery pack connected to the second converter, and a step of controlling a charger connected to the first battery pack, the first converter and the second converter to charge the first battery pack and the second battery pack in the selected charging modes.

The embodiment of the invention provides a terminal and a charging method thereof. The charging method comprises the steps of obtaining battery voltage of the terminal in real time when detecting that charging equipment is connected to the terminal; and adjusting the charging voltage of the charging equipment according to the battery voltage, and controlling a first voltage conversion chip and a second voltage conversion chip to execute voltage conversion operation corresponding to the charging voltage to charge the battery. The charging voltage is converted by arranging two voltage conversion chips, so that the temperature generated by each voltage conversion chip in the voltage conversion process is reduced; and charging voltage and current of the battery are adjusted according to the charging voltage, so that high-efficiency fast charging of the battery is achieved.

The invention discloses a fast charging circuit and method capable of automatically adjusting the power. The circuit includes a power input end, a charging control module, a first output interface anda second output interface, wherein the charging control module includes an input rectification filtering module, a main power switching module, an output rectification filtering module, a first fastcharging control module and a second fast charging control module, a high frequency transformer is connected between an output end of the main power switching module and an input end of the output rectification filtering module, a DC-DC module is connected between an output end of the input rectification filtering module and an input end of the second fast charging control module, and a feedback unit is connected between the first fast charging control module and the main power switching module. The method is applied to the fast charging circuit. The circuit is advantaged in that charging efficiency is optimized through intelligent distribution of the multi-port power, the charging speed of electrical appliances can be accelerated, and power distribution of two output ports can be simultaneously achieved.

The invention discloses a secondary cell charging method. The method is characterized in that a secondary cell is subjected to constant-current charging to limiting voltage VZ, wherein VZ is larger than the widely known constant-current charging limiting voltage V0; the secondary cell is subjected to the constant-voltage charging according to the voltage VZ, and charging stops when the constant-voltage charging current is reduced to termination current IZ, wherein the termination current IZ is larger than the widely known constant-voltage charging termination current I0. Compared with the prior art, the secondary cell charging method is characterized in that in a constant-current constant-voltage charging method, certain constant current charging limiting voltage and the constant-voltage charging termination current are set, high-voltage charging time during a cell charging process is reduced, under prerequisite that battery capacity does not loss, the charging speed of the cell is increased, and the usage life of the cell is effectively prolonged.

The application discloses a mobile power source and an adapter. The mobile power source supports a rapid charging protocol, and comprises a charging device, an energy storage device, a wired power transmission device and a wireless power transmission device, wherein the charging device is connected with an electric energy input end of the energy storage device, and the wired power transmission device and the wireless power transmission device are respectively connected with an electric energy output end of the energy storage device. According to the mobile power source, the charging device obtains adjustable direct current voltage from the adapter of the mobile power source, and when the adapter supports the rapid charging protocol, voltage value of the adjustable direct current voltage keeps consistent with charging voltage value specified in the rapid charging protocol, and charging speed for the mobile power source is improved. Simultaneously, the mobile power source uses the wireless power transmission device, and thereby prevents the circumstance that an existing mobile power source can not be used to charge a mobile terminal when a charging wire can not be found.

The invention provides an active matrix organic light emitting diode (AMOLED) pixel unit driving circuit, an AMOLED pixel unit driving method, a pixel unit and a display device. The AMOLED pixel unit driving circuit comprises a switch unit, a storage capacitor, a driving thin film transistor and a current share unit, wherein the first input end of the switch unit is connected with a current source for supplying charging current; the second input end of the switch unit is connected with an OLED; the first end of the storage capacitor is connected with the output end of the switch unit; the second end of the storage capacitor is connected to a low level; the gate of the driving thin film transistor is connected with the first end of the storage capacitor, and the source of the driving thin film transistor is connected to the low level; and one end of the current share unit is connected with the low level. By adopting a current share mode, the zooming proportion of the charging current Idata to current Ioled flowing through the OLED is relatively large, so that the Ioled is in a working current range of the OLED, and the Idata is relatively high; and therefore, the charging speed of the storage capacity Cst is increased.

The invention is suitable for the field of a mobile terminal, and provides a charging method and a mobile terminal. The method comprises: sending a fast charging command to a second controller when the connection between a charging adaptor and the mobile terminal is detected by a first controller; judging whether the charging adaptor has the ability to output the pressure specified by the fast charging command or not when the fast charging command is received by the second controller, and sending a fast charging response command to the first controller if the charging adaptor has the ability to output the pressure specified by the fast charging command; communicating one or more than one charging loops of which the batteries are charged by auxiliary charging circuits when the fast charging response command is received by the first controller; realizing the fast charging of the batteries by that the batteries are simultaneously charged by the one or more than one auxiliary charging circuits which are parallel.

The invention relates to a novel two-source trolleybus and a power system thereof. The novel two-source trolleybus power system comprises a power battery system, a super-capacitor system and an isolation-type DC/DC (direct-current/direct-current) converter, so that the running, safety and production problems can be fundamentally solved. A current collector is used for powering the entire power system through the isolation-type DC/DC converter, the trolleybus is electrically isolated from a wire network through the isolation-type DC/DC converter, and the step voltage can be avoided. By utilizing a composite vehicle-mounted energy, the vehicle-mounted energy can be rapidly charged, the requirement of instantaneous high power of the motor can be met, and the running distance of the two-source trolleybus is increased. The voltage on the output end of the isolation-type DC/DC converter is adjusted through a controller, so that a reasonable storage space of the vehicle-mounted energy system is guaranteed so as to store the feedback brake energy.

The invention discloses a device for online charging during the running of an electromobile. The device comprises a secondary battery pack, a direct current generator, a rectification filtering unit, a charging unit and a monitoring unit, wherein the secondary battery pack comprises two or more battery packs; an output winding of the direct current generator is connected with the rectification filtering unit; an output port of the rectification filtering unit is connected with the charging unit; the output end of the charging unit is connected with the secondary battery pack; a control output winding of the monitoring unit is connected with the charging unit and the control end of the secondary battery pack; the charging unit alternately charges the two or more battery packs under the action of the control unit; and the secondary battery pack performs online charging or is driven to operate under the action of the control unit.

A fast charging high energy storage capacitor system jump starter is described. The jump starter apparatus incorporates a method of using reserve energy from a depleted electrical system such as an automobile battery or using energy from another energy source, combined with a fast charging high energy capacitor bank to enable the rapid and effective way to jump start a vehicle.

The invention discloses an OLED display panel and a preparation method. The OLED display panel comprises a glass substrate, a first bottom gate, a light shielding layer, a buffer layer, a first polycrystalline silicon layer, a second polycrystalline silicon layer, a gate insulating layer, a first top gate, a second top gate, an interlayer insulating layer, a first source electrode, a first drain electrode, a second source electrode, a second drain electrode, a passivation layer, a planarization layer, a pixel electrode, a pixel definition layer, an OLED light-emitting device and a cathode metal layer. The first source electrode is in contact with the first bottom grid electrode through a via hole, and the second source electrode is in contact with the light shielding layer through anothervia hole.

Closeness of a housing is maintained in a normal handling state, and electric power shortage is solved to perform prompt action by quick charge in emergency situations. Normally an electronic cassette is loaded in a cradle to charge a battery by a non-contact charging function. In a case of contact charge, a pair of electrodes and a pair of terminals are brought into contact with each other by removing a packing, and the battery is charged in a state where wiring is physically connected. Therefore, energy efficiency is better compared with the non-contact charge, and the charge can be performed in a short time.

The invention discloses a universal fast charging method of batteries which can be charged, measuring receivable extent from battery to current to determine the magnitude and turn-on/off of corresponding charging current, by this, during charging, it can effectively avoid or reduce marginal reactions such as electrolyte electrolysis in a battery, current charging effect enhancement, etc; it can reduce electrode polarization phenomenon, and enhance charging efficiency by finding a charging current according with or lighter than battery charging extent; it also includes intermittent charging method and short-time reversely charging to effectively reduce the phenomena of electrode polarization and heating of battery during charging.

The invention discloses an intelligent power regulating circuit and method of charging equipment. The method comprises the steps that firstly, the state of charge (SOC) of electric vehicles and loads of the electric vehicles are worked out, and load curves are drawn; by drawing the load curves of the multiple electric vehicles of the same type, whether the load curves are astringed or not is judged, if the load curves are astringed, the load curves are output, and if the load curves are not astringed, the operations are carried out repeatedly; and according to the load curves of the electric vehicles, the maximum output power of a whole charging station is determined, a decision model is established for all terminal charging equipment through the analytic hierarchy process according to the SOC of the electric vehicles, the charging process is divided into an energy supplement stage, a power maintaining stage and a low current supplement stage, and powers of all charging ports are distributed dynamically. By the adoption of the intelligent power regulating circuit and method, the charging loads of the electric vehicles can be forecast effectively, orderly charging control is achieved by sufficiently using a charger, flexible and rapid charging of the electric vehicles is guaranteed, and meanwhile, regional load monitoring is also taken into account.

The present invention provides a communication interface circuit. The communication interface circuit comprises: a power supply port, a grounding port, a first data port, a second data port and a shielding port. The communication interface circuit further comprises: a communication circuit connected with the first data port and the second data port; a primary charging circuit connected with the power supply port and the grounding port; and one or two auxiliary charging circuits. The communication interface circuit has a rapid charging mode and a prohibited rapid charging mode, when the rapid charging mode is allowed, the primary charging circuit and the one or two auxiliary charging circuits are charged by the power supply port, the grounding port, the first data port, the second data port and / or the shielding port; when the rapid charging mode is prohibited, the communication circuit can transfer data by the first data port and the second data port, and the primary charging circuit is charged by the power supply port and the grounding port. Compared with the prior art, the communication interface circuit provided by the present invention can support a more rapid charging for the battery.

The invention discloses equipment to be charged, a charging method and device of the equipment to be charged, electronic equipment and a charging system. The method includes the steps that when a signal, representing a current rated output current value, transmitted by a charger is received, the current rated output current value of the charger is obtained; according to the current rated output current value of the charger, a preset charging current value of the equipment to be charged is adjusted, and charging is performed at an adjusted charging current value. By the adoption of the equipment to be charged, the charging method and device of the equipment to be charged, the electronic equipment and the charging system, under the condition that the output current of the charger is large, the charging capacity of the charger can be sufficiently utilized for achieving rapid charging.

The invention provides a method and a device for rapid charging of a lithium ion battery. The device for rapid charging of the lithium ion battery comprises a DC constant current power supply which is connected to the lithium ion battery to be charged, and a controllable switch which is connected to the lithium ion battery and the DC constant current power supply in series so that a series circuit is formed and is used for connecting to or cutting off the series circuit. The device is characterized in that the device comprises a control module which is connected to the lithium ion battery and the controllable switch and is used for detecting terminal voltage and a terminal voltage change rate of the lithium ion battery, when the detected terminal voltage is lower than a charging threshold, the control module controls the controllable switch to connect the series circuit so that the lithium ion battery is charged, and when the detected terminal voltage is higher than the charging threshold and a detected terminal voltage change rate curve is obviously declined, the control module controls the controllable switch to cut off the series circuit so that lithium ion battery charging is stopped.

The present invention discloses a charging switching control circuit and a control method thereof. The control circuit comprises a voltage input end, at least two voltage output ends and at least twoUSB interfaces, one signal input end of one USB interface is connected with one voltage output end, one switching circuit and one detection circuit are connected between the voltage input end and oneUSB interface, each detection circuit comprises one drive circuit, one voltage generation circuit and one voltage detection circuit, each voltage detection circuit detects the port voltage of one voltage output end, each drive circuit outputs drive signals to one switching circuit, and each voltage generation circuit is configured to generate detection voltage signals. The control method is applied to the charging switching control circuit. The rapid charging circuit is employed to achieve single-power and multi-port output IC, any one USB interface can support a rapid charging function, the IC area can be saved, and the cost is reduced.