Patent application number | Description | Published |
20120025602 | Inductive power transfer apparatus - A magnetic flux pad for receiving or generating magnetic flux. The pad includes two pole areas ( | 02-02-2012 |
20120025603 | Inductive power transfer apparatus - A magnetic flux pad for generating or receiving magnetic flux has two pole areas ( | 02-02-2012 |
20130272044 | INDUCTIVE POWER TRANSFER CONTROL - An inductive power transfer (IPT) control method is disclosed for controlling the output of an IPT pick-up. The invention involves selectively shunting first and second diodes of a diode bridge to selectively rectify an AC current input for supply to a load, or recirculate the AC current to a resonant circuit coupled to the input of the controller. By controlling the proportion of each positive-negative cycle of the AC input which is rectified/recirculated, the output is regulated. Also disclosed is an IPT controller adapted to perform the method, an IPT pick-up incorporating the IPT controller, and an IPT system incorporating at least one such IPT pick-up. | 10-17-2013 |
20140268895 | MIXED SEMICONDUCTOR H-BRIDGE POWER CONVERTERS AND METHODS RELATED THERETO - This disclosure provides systems, methods and apparatus for power converters and particularly power converters for wireless power transfer to remote systems such as electric vehicles. In one aspect, the disclosure provides an electronic power supply. The electronic power supply includes at least first and second half-bridge circuitries. The first half-bridge circuitry includes semiconductor material of a first type. The second half-bridge circuitry of the H-bridge includes semiconductor material of a second type. The first semiconductor material type is different from the second semiconductor material type. | 09-18-2014 |
20140320090 | INDUCTION POWER TRANSFER SYSTEM WITH COUPLING AND REACTANCE SELECTION - A power receiver is configured to supply current to a load and to be wirelessly operatively coupled to a power transmitter and includes a plurality of inductive elements. The power receiver further includes a circuit operatively coupled to the plurality of inductive elements and is configured to be selectively switched among a plurality of coupling states. The circuit is further configured to be selectively switched such that each inductive element has a reactance state of a plurality of reactance states. The power receiver further includes a controller configured to select the coupling state and to select the reactance state of each inductive element based on one or more signals indicative of one or more operating parameters of at least one of the power receiver and the power transmitter. | 10-30-2014 |
20140340027 | SYSTEMS, METHODS, AND APPARATUS RELATED TO ELECTRIC VEHICLE WIRED AND WIRELESS CHARGING - One aspect provides an apparatus configured to receive wireless charging power and wired charging power. The apparatus includes a first rectifier configured to receive wired charging power and to provide a first rectified output. The apparatus further includes a second rectifier configured to receive wireless charging power and to provide a second rectified output. The apparatus further includes a power-factor correction (PFC) module configured to receive the first and second rectified outputs, and further configured to provide a power-factor corrected output. The apparatus further includes an isolated DC-DC converter configured to receive the power-factor corrected output and to provide an isolated DC output. The apparatus further includes and a battery configured to receive the isolated DC output. | 11-20-2014 |
20140361628 | PRIMARY POWER SUPPLY TUNING NETWORK FOR TWO COIL DEVICE AND METHOD OF OPERATION - This disclosure provides systems, methods and apparatus for connecting and operating an AC source to a load. In one aspect a power supply topology is provided which may be of particular use in the area of wireless power transfer. The topology allows for a single source to energize one or more conductive structures configured to generate a field, improving power transfer to a power receiver. | 12-11-2014 |
20150061578 | SYSTEM AND METHOD FOR ALIGNMENT AND COMPATIBILITY DETECTION FOR A WIRELESS POWER TRANSFER SYSTEM - Systems, methods, and apparatuses for receiving charging power wirelessly are described herein. One implementation may include an apparatus for receiving charging power wirelessly from a charging transmitter having a transmit coil. The apparatus comprises a receiver communication circuit, coupled to a receive coil and to a load. The receiver communication circuit is configured to receive information associated with at least one characteristic of the charging transmitter. The apparatus further comprises a sensor circuit configured to measure a value of a short circuit current or an open circuit voltage associated with the receive coil. The apparatus further comprises a controller configured to compare the value of the short circuit current or the open circuit voltage to a threshold charging parameter set at a level that provides charging power sufficient to charge the load. The controller may be further configured to initiate receiving the charging power from the charging transmitter when the short circuit current or the open circuit voltage associated with the receive coil is greater than or equal to the threshold charging parameter. | 03-05-2015 |
20150077046 | SYSTEMS AND METHODS FOR BI-STATE IMPEDANCE CONVERSION IN WIRELESS POWER TRANSFER - One aspect provides a wireless power transmitter. The wireless power transmitter includes a transmit antenna configured to generate a field for wireless transmit power in both a first and second configuration. The wireless power transmitter further includes a first capacitor. The wireless power transmitter further includes at least one switch configured to selectively connect the first capacitor in one of the first and second configuration. The first capacitor can be in series with the transmit antenna in the first configuration and in parallel with the transmit antenna in the second configuration. | 03-19-2015 |
20150202970 | SYSTEMS AND METHODS FOR ELECTRIC VEHICLE INDUCTION COIL ALIGNMENT - Systems and methods in accordance with particular embodiments provide for alignment of an electric vehicle induction coil with a base system induction coil through a determination of the phase of a base system induction coil current signal. In certain embodiments, an electric vehicle induction coil that receives a transmission signal can be determined to be in greater alignment with a base system induction coil that transmits the transmission signal as the phases of the current signals at the base system induction coil and the electric vehicle induction coil converge. One embodiment includes a method of receiving wireless power, including detecting a transmission signal in a wireless power transmission, the transmission signal comprising periodic variations between a first frequency and a second frequency. The method further includes determining a phase of a base system induction coil signal based on the detected transmission signal. | 07-23-2015 |
20150298559 | BASE DISTRIBUTION NETWORK FOR DYNAMIC WIRELESS CHARGING - Dynamic systems may require a large number of coils (charging pads) which may be installed into the roadway to wirelessly provide power to electric vehicles as they are traveling along the roadway. The current in each of these coils may need to be turned on and off as a vehicle drives over the coils in order to efficiently utilize power and properly convey power to the passing vehicles. The supply network behind these coils may need to be capable of managing the individual coils with minimal infrastructure and cost as well as be capable of distributing the required power from the power grid to these pads efficiently and safely. The supply network may include charging coils, switches, local controllers, and distribution circuitry within a modular element, which may receive power from external sources and may be controlled by a central controller. | 10-22-2015 |
20150298560 | BASE MAGNETICS AND SEQUENCE DESIGN FOR DYNAMIC SYSTEMS - Dynamic wireless charging systems may involve coordinating multiple charging base pads to provide coordinated, continuous power transfers to a moving receiver along the distance in which the dynamic wireless charging system is installed. The layout and design of the charging base pads, the current flow through the charging base pads, and the sequencing of charging base pad activation and current flow implemented may dramatically affect the power transfers and practicality of such dynamic systems. The sequencing and control of these coils may need to be capable of managing the individual coils with minimal infrastructure as well as be capable of distributing the required power from the power grid to these pads efficiently and safely, and may comprise charging base pads, controllers to control the power flow to, activation of, and current flow direction within the base pads. | 10-22-2015 |
20150298561 | BASE ARRAY NETWORK DESIGN FOR MULTIPLE VEHICLE PADS - Dynamic wireless charging systems may involve coordinating multiple charging base pads to provide coordinated, continuous power transfers to a moving receiver along the distance in which the dynamic wireless charging system is installed. These dynamic systems may require a large number of coils (base pads) which may be components in base array networks (BAN modules). The BAN modules may provide for simplified installation and system design wherein the BAN modules may be preassembled and self-contained, drop-in-place units. The layout and design of the BAN modules may be such that they may contain charging base pads, local controllers, distribution circuitry, and switching controls. The sizing of the BAN modules may dramatically affect the usability and practicality of such dynamic systems. The sizing of the BAN modules may be dependent upon the pitch between vehicle pads on electric vehicles and base pad pitch within the BAN modules. | 10-22-2015 |
20150303714 | DEVICES, SYSTEMS, AND METHOD FOR POWER CONTROL OF DYNAMIC ELECTRIC VEHICLE CHARGING SYSTEMS - Systems, methods, and apparatus are disclosed for wirelessly charging an electric vehicle. In one aspect, a method of wirelessly charging an electric vehicle is provided. The method includes, obtaining a request from the electric vehicle for a level of charging power to be delivered from a power transmitter to the electric vehicle via a charging field. The method further includes controlling a current or voltage of the power transmitter based on a power efficiency factor and the requested level of charging power. | 10-22-2015 |
Patent application number | Description | Published |
20100241473 | METHOD OF MANAGING LIGHT ENERGY AND SYSTEM OF THE SAME - A system and method of managing light energy are provided. A detecting apparatus detects input information related to input light energy and environmental information related to efficiency of inputting light energy. Then, an analysis and management apparatus calculates, analyzes, classifies, manages or optimizes the input information and environmental information by predetermined parameters or rules, and determines whether to take a corresponding action according to results of analysis or management. Accordingly, drawbacks of prior arts, that the source of light energy cannot be handled accurately and difficulties in controlling and optimizing light energy persist, can be solved. | 09-23-2010 |
20100247981 | METHOD FOR ENERGY MANAGEMENT OF COMPOSITE BATTERY AND SYSTEM FOR THE SAME - A method and system for energy management of a composite battery are provided to control and manage products of reaction going on in the composite battery. During the reaction, the gas products are usually exhausted and wasted. If the gases could be recycled, battery effectiveness would be improved. According to the present invention, the gases are collected and then recycled by an exhaust gas recycling device. In addition, the method and system involve analyzing data of the generated electrical energy, data of the produced gases, operational data of the composite battery and device data for the exhaust gas recycling device. Thus, the composite battery is controlled and managed according to the analysis, and its effects are improved. | 09-30-2010 |
20100305890 | SYSTEM AND METHOD FOR EVALUATING POWER USAGE - A system and method for evaluating power usage, applicable to a power consumption environment provided among a power supplying device, a battery, and a power supplying network, are provided. The method includes: receiving, by a receiving module, information about power usage, information about characteristics of the power supplying device, information about characteristics of the battery, and information about characteristics of the power supplying network entered by a user; storing the above-mentioned information to a storing module by the receiving module; and analyzing or comparing the above-mentioned information by an evaluating module according to a preset rule or algorithm so as to calculate information about power consumption. The system and method are effective in analyzing, evaluating and optimizing power consumption behavior of users, thereby assisting users in deciding on the best power consumption mode according to the calculated information about power consumption. | 12-02-2010 |
20110140449 | WIND POWER DEVICE - A wind power device is provide that includes a first carrier with a first active layer disposed thereon, a second carrier with a second active layer disposed thereon, at least a wind-receiving member connected to the first and second active layers and at least a power unit. The wind-receiving member takes in wind energy for activating the first and second active layers to drive the power unit to generate power. The wind power device advantageously provides ease in assembly and maintenance and is suitable to environments with variable wind directions and capable of being flexibly adjusted to adapt to varying wind speeds and thus achieve optimal power generating efficiency. | 06-16-2011 |
20110149070 | LIGHT SOURCE DETECTION SYSTEM AND METHOD - A light source detection method and system are provided. The method includes receiving incident light sources through light passing holes formed in a light spot forming board to form a light spot on an imaging board; capturing the image of the light spot and detecting the intensity thereof into divided zones so as to transmit such information that is calculated by preset algorithms to a processing device for identification, thereby improving on the drawbacks of prior techniques to achieve better accuracy of light sources and efficiency in use. | 06-23-2011 |