190results about "Batteries circuit arrangements" patented technology

The present invention relates to a method for verifying a charging state of a wireless power receiving apparatus in the wireless power transmitting apparatus, and more particularly, to an apparatus and a method for efficiently performing and controlling wireless power transmission.

To this end, the present invention provides a wireless power transmitting method, wherein a standby state of determining whether at least one wireless power receiving apparatus is positioned within a wireless charge range of the wireless power transmitting apparatus and a power transfer state of transmitting power to the corresponding wireless power receiving apparatus when at least one wireless power receiving apparatus is detected in the standby state are provided, and the standby state includes a first standby state of periodically transmitting a weak detector signal and a strong detector signal and a second standby state in which at least one of a transmission period of the weak detector signal and a transmission period of the strong detector signal is different from that of the first standby state, the method including: determining any one state of the first standby state and the second standby state of the wireless power transmitting apparatus; and transmitting the weak detector signal and the strong detector signal based on the determined standby state, wherein the transmission period of the weak detector signal in the second standby state is longer than the transmission period of the weak detector signal in the first standby state.

A power adapter is provided that includes a base adapter configured to perform power conversion to supply power requirements of an electronic device from a power source. The power adapter converts the power signal from the power source into power signal compatible with the first electronic device. Input and output connectors provide coupling to the power source and electronic device, respectively. An accessory adapter can be provided and can be configured to be removably coupleable to the base adapter for modular operation. The accessory adapter can be configured to provide another power signal to power a second electronic device. Multiple accessory adapters can be added to provide power requirements for multiple devices. Security keys can be used to authenticate the power supply for security and verification purposes.

As an aspect of the present invention, a noncontact power feeding apparatus includes: a power transmission resonator; and a power reception resonator configured to be magnetically coupled with the power transmission resonator by magnetic field resonance. The power transmission resonator is magnetically coupled with the power reception resonator by the magnetic field resonance, whereby electric power is supplied from an electric power source to the power reception resonator through the power transmission resonator. One of the power transmission resonator and the power reception resonator has a predetermined single resonant frequency, and the other one of the power transmission resonator and the power reception resonator has multiple resonant frequencies inclusive of the predetermined single resonant frequency.

A case battery for a personal digital assistant is provided. The case battery includes a holding portion and a charging portion. The holding portion holds the personal digital assistant detachably. The charging portion is disposed in the holding portion and configured to be electrically connected to the power input. The charging portion extends the usage time of the personal digital assistant. The charging portion includes an electrical power acceptor configured to accept electrical power from outside. The charging portion may further include a secondary battery, and the electrical power acceptor is configured to charge the secondary battery using an external electrical power source. The charging portion may include a primary battery and a receptacle configured to accept the primary battery.

A DC-based power system including: an AC power distribution system for providing AC power to a first node and a second node; a first converting system coupled to the first node that converts AC power to DC power and outputs the DC power to a first distributed bus bar; a second converting system coupled to the second node that converts AC power to DC power and outputs the DC power to a second distributed bus bar; a first set of DC/DC converters that steps down the DC power from the first distributed bus bar to a first stepped down DC voltage; a second set of DC/DC converters that steps down the DC power from the second distributed bus bar to a second stepped down DC voltage; and a critical load distribution system that is powered by both the first stepped down DC voltage and the second stepped down DC voltage.

Provided is a method of localizing rack-mounted computing devices, the method comprising: receiving, with a direct current (DC) power bus or via an Ethernet control network or data network, a request from a control unit for a rack computing device location; generating, with a sensor, output signals conveying information related to a location of the rack-mounted computing device; and sending, with the direct current (DC) power bus or via an Ethernet control network or data network, location information of the rack-mounted computing device.

The invention belongs to the field of power battery management of electric vehicles and in particular relates to a method for estimating and revising the state of charge (SOC) in a battery management system of an electric vehicle. The method mainly comprises the following steps of: firstly, calculating the current SOC of a battery; and secondly, revising the SOC for influence of battery temperature, battery ageing and a current integration accumulated error on the SOC, wherein for the influence of the battery temperature and the battery ageing on the SOC, the SOC of the battery is revised by calculating revising factors of the battery temperature and the battery ageing and using the revising factors, and for the influence of the current integration accumulated error on the SOC, revising of the SOC is determined by judging discharging current and duration time. The method has the advantages that: by revising the SOC for the influence of the battery temperature, the battery ageing and the current integration accumulated error on the SOC, influencing factors of the error can be quite conveniently eliminated, and the revising accuracy of the SOC is improved.

A power and control module for a Power over Ethernet (PoE) light emitting diode (LED) lighting system includes an input channel for receiving PoE input power from a PoE switch, an output channel for providing PoE output power to a plurality of LED light fixtures and a power transfer unit coupled between the input and output channel for providing the PoE input power and/or a secondary input power to the output channel as the PoE output power. A secondary power input unit selectively provides secondary power to the power transfer unit. A processor is controls the power transfer unit to adjust an amount of PoE input power and secondary input power to obtain the PoE output power. Secondary input power can be an emergency power source during line power outages. Secondary input power could be a renewable energy power source used preferentially to the PoE input power when available.

A distributed solar power generation and hot water supplying system includes: a photovoltaic power generation self-service sun tracking system, an inverter, a controller, a storage battery, a heat-exchanging water tank and an electric heater provided therein, wherein a solar battery and a solar collector are mounted on the photovoltaic power generation self-service sun tracking system, an electricity output terminal of the photovoltaic power generation self-service sun tracking system is respectively connected to an inversing input terminal of an inverter and a surplus power supplying input terminal of a controller; an MCU-controlled power output terminal of the inverter is respectively connected for off-grid power consumption or grid-connected power generation, and to an inversing output terminal of the controller; a charging/discharging control output/input terminal inside the inverter is connected to an input/output terminal of the storage battery and a storage battery power supplying input terminal of the controller.

An inverter (1) for a grounded direct voltage source, in particular for a photovoltaic generator (2), a battery or a fuel cell, for converting the direct voltage into an alternative voltage with a DC-DC converter (3) and a pulse inverter that is supplied by said DC-DC converter (3), said DC-DC converter (3) being configured to be an oscillating circuit inverter and comprising a series resonant oscillating circuit, said DC-DC converter (3), which is configured to be an oscillating circuit inverter, being configured to be a series-compensated oscillating circuit inverter with a choke (L1) and a series-mounted capacitor array consisting of two or several oscillating circuit capacitors, a rectifier bridge branch including 2 diodes (D3, D4; D5, D6, . . . ), being connected to each of the partial oscillating circuit capacitors, said rectifier bridge branch being connected with its positive or its negative pole to output side intermediate circuit capacitors which are preferably connected in series so that said DC-DC converter (3) delivers at least two bipolar output voltages and is combined with the pulse inverter (4) with a divided voltage intermediate circuit that is supplied from the oscillating circuit inverter.

A wireless hotspot device capable of sharing video picture includes a first control unit connected with a battery and a second control unit. The second control unit is connected with a wireless transmission unit and a high-definition multimedia interface transmission port. The second control unit via the high-definition multimedia interface transmission port is connected with an external terminal apparatus. By means of the wireless hotspot device, the picture of the screen of a mobile device connected with the wireless hotspot device can be synchronously displayed on the screen of the external terminal apparatus. Also, the wireless hotspot device can charge the mobile device or other mobile device at the same time.

The invention discloses an accumulator battery online equalizing system which comprises a central processing controller, an electricity quantity acquisition module, a battery switching module, a voltage online equalizing module, an internal resistance and capacity online equalizing module and the like. The system can perform online and real-time equalizing adjusting on the voltage, the internal resistance and the capacity of a battery cell in an accumulator battery, can ensure that each battery in the accumulator battery is operated at an optimized operating state, greatly prolongs the operating life of the accumulator battery by more than two times, improves the reliability and the performance of the accumulator battery, reduces the environment pollution caused by the battery, and has good social benefit and environmental protection property; and the system adopting the active equalizing method can cancel the traditional equalizing method of periodic charging, reduces water loss of the battery, greatly reduces the probability of incontrollable low heat, prolongs the service life of the battery, simultaneously avoids the vulcanization of the battery, and saves a large amount of cost.

A rechargeable hearing aid comprises a battery charger and a hearing aid body. The battery charger presents an easily carried case, which is provided with a receiving groove and a battery chamber, which contains a dry battery for power supply. The receiving groove can receive the hearing aid body and is provided with connection terminals at two sides of the inner groove for flexibly locking the hearing aid body. A cover covers on the receiving groove and is pivotally connected to the bather charger by a hinge element, which is further connected to a switch, such that when the cover is in the position of OFF, the battery can start recharging right away, and be quickly completed with micro-voltage.

A hybrid electric vehicle includes an internal combustion engine, a traction battery, and a hybrid electric powertrain. A compact, portable, off board service jump-start device provides direct current (DC) power at a proper voltage and current to recharge the traction battery. The device includes a power supply with a high voltage output for providing the DC power. The device further includes a communication interface for receiving commands to control the recharging of the traction battery. The power supply recharges the traction battery in accordance with the received commands. Advantageously, this provides a compact, portable, off board service jump-start device that provides a controlled recharging of the traction battery of the hybrid electric vehicle and allows charging of the traction battery without the need for charging circuits on the vehicle.

The present invention relates to an electric car which has a battery pack at a constant state of maximum power discharge and to a method of efficiently controlling a motor with due consideration for rechargeable power levels. The control method according to one embodiment of the present invention, comprises the steps of: calculating estimated power levels required, based on current power consumption levels, for providing current from the battery pack to all parts of an electric car, and the required torque according to a driver's activation of the accelerator; comparing the estimated power levels required with the maximum possible power discharge from the battery pack; and enabling maximum possible torque from the motor when the estimated power levels required exceeds the current maximum possible power discharge from the battery pack.

A light-emitting diode (LED) light source suitable for being electrically connected with a power line is provided. The LED light source includes an LED array, a power line communication (PLC) unit and a current control unit. The PLC unit is electrically connected with the power line, and the current control unit is electrically connected with the LED array and the PLC unit.

A programmable uninterruptible power supply for coupling battery powered systems associated with a mobile site, such as a vehicle, to the primary electrical system of the mobile site operates to selectively couple the battery powered systems to the electrical system of the mobile site and to a secondary, or back-up battery separate from the primary battery associated with the electrical system of the mobile site. Various system control functions are performed, including reverse battery protection, over voltage and under voltage protection, battery drain protection, battery charging detection, reverse current detection and uninterruptible power switching. For detected adverse operating conditions, the load is disconnected from the electrical system of the mobile site and the back-up battery is used to operate the battery powered systems which are to be protected from such adverse operating conditions.

The purpose of the present invention is to provide a method and device for operating a power system, and a rechargeable-battery management device, that extract maximum performance from rechargeable batteries and use said batteries evenly while taking into consideration cost and the operation of the batteries. In order to solve said problem, in this method for operating a power system provided with a plurality of rechargeable-battery devices and a plurality of electric generators, the amount of power that a rechargeable battery available during a scheduled time period on a scheduled date will be able to supply is determined, an economic-dispatch calculation including the determined amount of power that the aforementioned rechargeable battery will be able to supply is performed for the power system, and said rechargeable battery is used to supply power during the scheduled time period on the scheduled date.

A safe power supply circuit of the invention comprises a single-chip microcomputer control circuit, a loop protecting circuit and a voltage reducing and stabilizing power supply circuit which supplies electric power to the single-chip microcomputer control circuit. The output end of the loop protecting circuit is connected with a voltage detecting circuit. One end of the output end of the voltage detecting circuit is connected with the single-chip microcomputer control circuit, and the other end is connected with a loop switch protecting circuit. The output end of the loop switch protecting circuit is connected with a current detecting circuit. The output end of the current detecting circuit is connected with the single-chip microcomputer control circuit. The output end of the single-chip microcomputer control circuit is connected with a voltage detecting circuit. The safe power supply circuit can settle the problems of no protecting measures for overvoltage, overcurrent and reverse charging; and incapability of realizing automatic matching between a charger and an anode and a cathode of a battery. Higher safety and higher user-friendly performance of an electric vehicle are realized.

The invention relates to an automotive active engine mount capable of energy regeneration and transmitting force perception. The automotive active engine mount consists of an active engine mount actuator body and a control circuit system, wherein the active engine mount actuator body mainly consists of rubber springs, a base, a position-fixing pin, a metal framework, an electromagnetic linear module and a piezoelectric module; the upper end and the lower end of the active engine mount actuator body are respectively connected with an engine body and an automobile frame through connecting bolts;and an actuator control system mainly consists of an energy recovery module, a controller, a storage battery voltage sensor, a controllable current source, a rotating speed sensor, a force sensor, anactuator energy regeneration voltage sensor and a relay. The invention also relates to a control method of the automotive active engine mount. The automotive active engine mount is novel in structureand high in practicability and is capable of significantly reducing the impact of engine vibration on a chassis and the automobile body, improving the ride comfort of an automobile, reducing the noise in the automobile, recovering the energy of the engine vibration, reducing the energy consumption of the automobile and achieving the purpose of improving the performance of the entire automobile while reducing the energy consumption.

The invention discloses a heating circuit of a battery. The heating circuit comprises a temperature sensor, a battery management device and a charging circuit. The temperature sensor is mounted in a battery pack; the temperature sensor detects the real-time temperature of the battery pack and sends a temperature signal. The battery management device is connected with the temperature sensor; the battery management device receives the temperature signal sent by the temperature sensor. The charging circuit is connected with the battery management device, wherein the battery management device compares the temperature signal with a critical temperature; when the temperature signal is lower than or equal to the critical temperature, the battery management device controls the charging circuit towork in a high-frequency heating mode and the charging circuit heats the battery pack; when the temperature signal is higher than the critical temperature, the battery management device controls the charging circuit to work in a charging mode and the charging circuit charges the battery pack. The heating circuit of the battery is used for realizing heating the battery through the high-frequency charging and discharging to the battery by utilizing the properties that the battery is high in internal resistance at a low temperature and generates much heat, and the influence cannot be generated tothe safety of the battery by high-frequency alternating-current charging and heating.

The invention discloses a protective shell of an electronic device with a charge-discharge function. The protective shell of the electronic device with the charge-discharge function comprises a base shell, wherein the electronic device is arranged on the base shell, a circuit board and a needle head connector are arranged on the base shell, and the needle head connector is in electric connection with the circuit board or is integrated on the circuit board. The protective shell of the electronic device with the charge-discharge function is capable of directly charging the electronic device through the needle head connector, capable of charging other equipment needing to be charged through the needle head connector, and capable of further supplying power to the electronic device through a charging battery in the protective shell. Solar energy is converted into electricity through a solar charging board, so that the lithium battery in the protective shell is charged or a battery inside the electronic device is directly charged, energy is saved, the protective shell is capable of meeting the non-stop usage requirement even under the condition that charging can not be carried out through a common power source, and therefore great convenience is brought to a user.

The invention discloses a battery pack active equalization method and a battery pack active equalization device. The battery pack active equalization device is composed of an intelligent control unit, a BMS communication unit, a differential-amplification pressure difference detection unit, and an electric energy transfer unit. The BMS communication unit acquires the current value and ampere hour from a BMS. The differential-amplification pressure difference detection unit detects the voltage of batteries one by one through a differential amplifier and sends the detection values to the intelligent control unit. The electric energy transfer unit is used for transferring energy from a battery cell to a battery cell, from a battery cell to a battery module or from a battery cell to a battery pack. The intelligent control unit receives the current value and ampere hour information acquired by the BMS communication unit and the test values of the differential-amplification pressure difference detection unit, and makes operational analysis according to the received current value and ampere hour information acquired by the BMS communication unit and the test values of the differential-amplification pressure difference detection unit so as to make the electric energy transfer unit transfer the energy of battery cells. The method and the device of the invention have the characteristics of high equalization efficiency, accurate equalization current flow and high cost performance.

The invention relates to wind and light storage micro-grid system for an industrial park. The main technical characteristics lie in that the wind and light storage micro-grid system includes a wind and light generation device, a generation system measurement and control terminal, a storage unit, an invertion device and a far end control master station, wherein the input end of the wind and light generation device is connected with a wind energy device and a solar energy device; the wind and light generation device is connected with a generation system measurement and control device; the storage unit is connected with the invertion device; the output end of the wind and light generation device and the output end of the invertion device are switched in the grid or are connected to a load for supplying electricity for the load; the generation system measurement and control terminal is connected with the invertion device; the generation system measurement and control device is connected with the far end control master station. The wind and light storage micro-grid system effectively integrates the functions of wind generation, photovoltaic generation, energy storage, off-grid inversion, grid-connected feed and the like, realizes the multifunctional conversion of electrical energy, and has the characteristics of energy saving, environmental protection, low cost, high efficiency, stable performance, and the like.

The invention discloses a city lane realizing charging during driving of an electric automobile. The city lane comprises an electric automobile wireless charging electric energy emission system and a lane pavement (3). The electric energy emission system comprises a DC source, an AC source, an emission circuit, a wireless electric energy emitter (2) and a driving battery (5). The DC source, the AC source, the emission circuit, the wireless electric energy emitter (2) and the driving battery (5) are successively connected in series, the surface of the upper portion of the lane pavement (3) is in contact with electric automobile driving wheels, the wireless electric energy emitter (2) is fixed below the lane pavement (3), the input anode of the driving battery (5) is connected with the anode of a wireless electric energy receiver (4), and the input cathode of the driving battery (5) is connected with the cathode of the wireless electric energy receiver (4). The city lane provided by the invention makes up for the disadvantage of wired charging of an electric automobile in the prior art.

An electric power generation system employs a thermoelectric generator placed between an aircraft inner skin and an aircraft outer skin. The thermoelectric generator is configured to utilize a thermal differential between the inner and outer skin to generate an electric current. An electrical interface is provided for access to the electric current generated by said thermoelectric generator.