57results about How to "Slow charging" patented technology

An organic EL device having a low driving voltage and exhibiting high luminous brightness and superior durability, and a method of manufacturing the same. The organic EL device has an anode layer, an organic light-emitting layer, and a cathode layer. An inorganic thin layer, comprising an inorganic compound of Ge, Sn, Zn, Cd, etc. and an inorganic compound of an element of Group 5A to Group 8 in the periodic table in combination, is provided between the anode layer and the organic light-emitting layer and between the cathode layer and the organic light-emitting layer, or the anode layer or the cathode layer comprises a chalcogenide of Si, Ge, Sn, Pb, Ga, In, Zn, Cd, Mg, etc. and an inorganic compound of an element of Group 5A to Group 8 in the periodic table in combination.

A fast lock circuit for phase lock loop comprising a frequency detector, a phase frequency detector, a logic unit and a corresponding charge pump for the frequency and the phase frequency detectors. Embodiments of the present invention use the logic unit to relay signals from the phase frequency detector circuit to the charge pump when the PLL is in lock. The logic circuit relay signals from the frequency detector circuit before the PLL is in lock. As a result, a constant current is supplied to a large loop filter capacitor before lock. In one embodiment, additional logic circuit may be used to maximize the output current. Therefore, using the logic circuit to supply constant current charges the large loop filter capacitor continuously and avoids a slow down in charging the large loop filter. Accordingly, current is no longer wasted and the lock time is improved.

A wind turbine pitch drive system comprises an electric grid for supplying electrical power, a motor for driving a pitch actuator, an electronic converter for controlling the motor and a back-up energy storage unit for supplying electrical power. The electronic converter comprises a DC-link capacitor bank. The system furthermore comprises a switching device for selectively connecting the DC-capacitor bank link to the back-up energy storage unit, and a frequency generator for controlling the switching device. Also disclosed is a method for protecting a component of the electronic converter.

A circuit to suppress arc across contacts of a relay is provided, in which the relay is electrically coupled to a power supply and a load. The circuit includes an arc suppression circuit electrically coupled between the first and second contacts of the relay, and the arc suppression circuit includes a capacitor and a switch, both of which are electrically coupled to the first and second contacts of the relay, in which the switch is configured to turn on when the first and second contacts of the relay change state, thereby providing an alternate path for a current flow through the load.

Disclosed is a charger including a first rectifying portion that rectifies an alternating power and outputs the rectified power to a neutral point of a 3-phase motor; a second rectifying portion / inverter that charges output power of the first rectifying portion in a high-voltage battery in a charging mode and drives the 3-phase motor by switching the charged power of the high-voltage battery in a drive mode; a high-voltage charging controller that controls the first rectifying portion and second rectifying portion / inverter so as to charge the high-voltage battery in the charging mode; and a DSP (Digital Signal Processor) that controls the second rectifying portion / inverter so as to drive the 3-phase motor in the drive mode, and controls the high-voltage charging controller so as to charge the high-voltage battery in the charging mode.

A method and system for reducing thermal load by monitoring temperatures within a portable computing device and, based on those temperatures, controlling a battery charge function are disclosed. The method includes monitoring a power management integrated circuit (“PMIC”) to determine if it is generating excess thermal energy that is contributory to an elevated temperature in a physically proximate application specific integrated circuit (“ASIC”). If so, and if the excess thermal energy is attributable to an ongoing battery recharge operation executed by the PMIC, a thermal policy manager module may execute a thermal mitigation technique algorithm to override the PMIC battery recharge function. One exemplary thermal mitigation technique may include a reduction of current sent to the battery, thus slowing the charge cycle and reducing the generation of excess thermal energy.

Systems and methods are described for generating electrical energy and / or charging a system electrical energy storage device in a vehicle, such as a locomotive. The vehicle includes at least one airflow device coupled to an electric machine. In one example, the method includes, generating electrical energy at the electric machine, said machine being driven by an ambient air flow interacting with the airflow device; and delivering at least some of the harnessed energy to an electrical component of the locomotive. The harnessed energy may be delivered to an electrical load, or delivered to the system electrical energy storage device to charge the device, or combinations thereof.

Photovoltaic (PV) systems for charging high voltage batteries used to power the electric traction motor of an electrically-powered vehicle are described. Suitable PV systems, fabricated of interconnected solar cells, modules or arrays, may be designed and adapted to efficiently charge a high voltage battery by matching the characteristics of the PV system to the fully-charged voltage of the battery. Preferably, a charging efficiency of about 90% or greater may be achieved through proper matching of the PV system to the battery. A reconfigurable PV system, based on assemblies of solar modules, is described. The reconfigurable PV system is capable of properly matching itself to a variety of different batteries, each of which may have a different voltage when fully charged. By using several reconfigurable PV systems a variety of batteries with different charged voltages may be charged simultaneously while utilizing substantially the full capacity of the PV system to charge batteries.

An information carrier in a preferred embodiment is worn like a dog-tag and carries data such as medical information. The tag operates wirelessly, communicating with a nearby reader which interrogates the tag with a selected combination of RF signal frequencies. Extremely long term battery usage is achieved by connecting the battery in the tag only when the proper combination of RF signals, each at least at a minimum threshold power level, is received at the tag to produce a trigger voltage in activation logic to close a solid state switch. After a sequence of communications between the reader and the tag is then completed to transfer selected data from the memory, the battery is again disconnected to preserve battery energy for very long periods of time. The battery may be slowly recharged by ambient energy using a scavenging antenna array.

Photovoltaic (PV) systems for charging high voltage batteries used to power the electric traction motor of an electrically-powered vehicle are described. Suitable PV systems, fabricated of interconnected solar cells, modules or arrays, may be designed and adapted to efficiently charge a high voltage battery by matching the characteristics of the PV system to the fully-charged voltage of the battery. Preferably, a charging efficiency of about 90% or greater may be achieved through proper matching of the PV system to the battery. A reconfigurable PV system, based on assemblies of solar modules, is described. The reconfigurable PV system is capable of properly matching itself to a variety of different batteries, each of which may have a different voltage when fully charged. By using several reconfigurable PV systems a variety of batteries with different charged voltages may be charged simultaneously while utilizing substantially the full capacity of the PV system to charge batteries.

A electrical combination includes a battery pack and a charger. The battery pack includes a battery pack housing including a first connecting portion for connecting the battery pack to the charger and a vent for placing an inside and an outside of the battery pack housing into communication. Battery cells are disposed within the battery pack housing. The charger includes a charger housing including a second connecting portion for engaging with the first connecting portion and an air flue having an air inlet and an air outlet, and a fan disposed within the charger housing. When the battery pack is connected to the charger, the air inlet is connected with the vent of the battery pack and the battery pack is positioned between the air outlet and the second connecting portion.

A power circuit includes a voltage limited charge circuit and a linear regulator to supply high current pulses to a load while maintaining a regulated output and not discharging the battery below a predetermined level. The voltage limited charge circuit includes a low impedance transistor and an operational amplifier that are together configured as an active loop. The transistor functions as a switch, and the operational amplifier provides an adjustable control voltage that adjusts the impedance of the transistor according to current battery voltage and a minimum threshold voltage. Adjusting the impedance of the transistor enables the storage capacitor to charge very fast when the battery impedance is low, or very slow when the battery impedance is high.

A gooseneck microphone has a configuration capable of preventing both of the occurrence of noise caused by extraneous electromagnetic waves and the occurrence of noise caused by electric discharge when touched. The gooseneck microphone includes a microphone unit having an electrostatic acousto-electric converter and a metal unit casing; a unit holder having a circuit board mounted with an impedance converter electrically connected to an output side of the acousto-electric converter, a cylindrical outer cylinder body, a cylindrical inner cylinder body arranged in the outer cylinder body, and a synthetic resin cover member covering the outer cylinder body; a metal support pipe having flexibility, the unit holder being supported on one end side of the support pipe; and a microphone cable having a two-core shield covering cable and inserted through the support pipe, one end side of the microphone cable being brought into the unit holder.

A recording apparatus, with a print function, a facsimile receiving function, and a print function for recording the image or the document onto the recording sheet, which is capable of being connected to an image forming device, and of setting independently and calculating appropriately the charge for each type of recording functions, so as to store the charge per unit quantity of recording sheet for each type of functions, as well as to calculate the accumulated charge for each type of functions based on the number of the used recording sheets and the charge per unit quantity for each type of functions.

The invention discloses a pure electric vehicle remote power battery heating system and a control method thereof. A remote control terminal is wirelessly connected with a remote monitoring service platform through a telecom operator network, and the remote monitoring service platform is wirelessly connected with the remote vehicle-mounted monitoring terminal through a telecom operator network. Theremote vehicle-mounted monitoring terminal, the vehicle control unit, the power battery system, the high-voltage distribution box and the DC-DC controller are all in signal connection with the CAN bus. Positive and negative electrodes of the power battery system are connected with positive and negative electrodes of a main distribution interface of the high-voltage distribution box through high-voltage cables; the positive electrode and the negative electrode of an auxiliary power distribution interface of the high-voltage power distribution box are connected with the positive electrode and the negative electrode of a vehicle-mounted 12V storage battery through theDC-DC controller. The power battery system comprises a battery management system, a heating film and a control system of the heating film. According to the design, the safety of circuit design is high, multiple protection is achieved, thermal runaway is avoided, the control strategy is reasonable, and the monitoring safety is high.

The present invention relates to a liquid crystal alignment agent, a liquid crystal alignment film made by the liquid crystal alignment agent and a liquid crystal display element having the liquid crystal alignment film. The liquid crystal alignment agent comprises a polymer (A) and a solvent (B). The polymer (A) is obtained by reacting a mixture that includes a tetracarboxylic dianhydride component (a) and a diamine component (b). The aforementioned liquid crystal alignment agent has excellent process stability and the charge accumulation can be rapidly relaxed.

A semiconductor device includes a pair of transistors formed in a first conductive type semiconductor substrate. Each of the transistors contains a collector region of a second conductive type, opposite to the first conductive type, formed in the semiconductor substrate, a base region of the first conductive type formed in the collector region, and an emitter region of the second conductive type formed in the base region, the collector region of one transistor of the pair of transistors being separated from that of the other transistor. The semiconductor device further includes a first region of the first conductive type formed between the collector regions of the pair of transistors, and a buried layer of the second conductive type formed in the semiconductor substrate under the collector region of one transistor of the pair of transistors to connect the collector regions of the transistors therethrough.

There is provided a microphone having a flexible pipe, which has a configuration capable of preventing both of the occurrence of noise caused by extraneous electromagnetic waves and the occurrence of noise caused by electric discharge when touched. In a unit holder 20 to which a microphone unit 10 is connected, there are provided a metal-made outer cylinder body 21 one end side of which is fixed to a support pipe 30 and the other end side of which is connected to a unit casing 11 of the microphone unit; and a metal-made inner cylinder body 22 which is arranged in the outer cylinder body 21, one end side of which is electrically connected to a shield cover conductor 43 of a microphone cable 40, the other end side of which is mounted with a circuit board 23 having a FET 24, and which is electrically connected to a ground pattern 231 of the circuit board 23. The unit holder 20 has a double shield consisting of a first electrostatic shield system leading from the unit casing 11 to the support pipe 30 through the outer cylinder body 21 and a second electrostatic shield system leading from the ground pattern 231 of the circuit board 23 to the shield cover conductor 43 through the inner cylinder body 22, and includes a synthetic resin-made cover member 25 formed into a cylindrical shape covering the outer cylinder body 21.

An output buffer is disclosed. The output buffer includes an input-stage circuit, an output-stage circuit and a compensation circuit. The compensation circuit includes a capacitor, a first switch, a second switch, a third switch, and a fourth switch. The input-stage circuit receives a differential input signal and outputting a response signal. The output-stage circuit receives the response signal and outputting an output signal. The first switch controls a connection between the input-stage circuit and a first terminal of the capacitor. The second switch controls the connection between an output terminal of the compensation circuit and a second terminal of the capacitor. The third switch controls the connection between the input-stage circuit and the second-terminal of the capacitor. The forth switch controls the connection between the output terminal of the compensation circuit and the first terminal of the capacitor.

A fill level measurement device including a long-term energy store, the discharging of which is prevented by a diode and a switch or by two switches when the fill level measurement device is switched off Therefore, energy is storable for a long period of time, even if the field device is switched off.

The present invention relates to an organic flow cell battery having a material comprising an organic molecule that can be used as the electroactive redox material for both electrodes of the battery. By enabling two-electron processes both of the oxidation and reduction to occur in a single molecule, a total of 4-electron transitions is achieved, which allows the organic molecule to be used on both sides of the separator, reducing material costs and allowing the battery to be charge in either direction with equal ease.

The invention solves a power distribution problem of an electric vehicle DC charging pile, the output power of each gun in two guns or multiple guns can be adjusted at any time, thereby distributing the power more effectively, the energy efficiency transmission rate of the cable is improved, and the charging pile efficiency is improved.

A case for an electronic device wherein the electronic device has a receiver coil for wireless charging and the receiver coil is formed in between an inner circle and an outer circle, includes: a hard protective frame constructed to receive the electronic device therein wherein the hard protective frame has a recess which faces the electronic device; and a metal plate constructed to be received in the recess. The metal plate is constructed to enable magnetic retention or attachment of the case to a support having a magnet. The metal plate has a rounded concave edge, and the metal plate does not overlap with the inner circle. Preferably, the rounded concave edge, the inner circle, and the outer circle are substantially symmetrical with respect to a same line.

The invention provides a data output control apparatus which allows detailed information on a network to be readily obtained, which is advantageous with respect to cost, and which is suitable for specifically notifying the user of the service charge. A data output control terminal is communicatively connected via the Internet to a portable terminal carried by a user, printing apparatuses provided at various locations, and WWW servers. The data output control terminal obtains from a WWW server data associated with a data print request from the portable terminal, selects one of the plurality of printing apparatuses, and outputs the obtained data to the selected printing apparatus. Billing is executed in accordance with the result of use by the portable terminal of the print service provided by the data output control terminal. The billing is executed by summing the service charge and the call charge of the portable terminal.

The present invention is directed to an apparatus and a method for charging a portable electrical device that features a switching system to selectively place an electrical storage subsystem in electrical communication with a source of light and a photovoltaic transducer. In one embodiment, the source of light is configured to direct optical energy upon a mounting surface and the photovoltaic transducer include optical sensors disposed on a sensing surface of the apparatus disposed opposite to the mounting surface. In another embodiment the optical sensors are disposed in the mounting surface. An electrical storage subsystem is included in the apparatus that is selectively placed in electrical communication with one of the photovoltaic transducer and the source of light. The source of light may be a single source of light or a plurality of light emitters.

The invention discloses a protection control method of a low-capacity high-power lithium battery pack. A system carries out real-time monitoring on parameters of a battery module, wherein the parameters include a voltage, a current and a temperature and the like; monitoring and coordination are carried out on all single batteries in the battery pack; automatic determination is carried out on a battery state; a controller is used to control each equalization unit to carry out protection and dynamic equalization management on a battery or a set of batteries; and circuit working starting time can cover a whole charging or discharging period of the battery pack. According to the invention, the system employs a microprocessor as a control core, so that functions of collection, calculation and control output of data are realized; therefore, the method has advantages of accurate control and simple expansion and the like.