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Germantown, MD, United States

Low Z.N.,University of Florida | Casanova J.J.,University of Florida | Maier P.H.,Current Inc. | Taylor J.A.,University of Florida | And 2 more authors.
IEEE Transactions on Industrial Electronics | Year: 2010

A method to determine various operating modes of a high-efficiency inductive wireless power transfer system which is capable of supporting more than one receiver is proposed. The three operating modes are no-load, safe, and fault modes. The detection scheme probes the transmitter circuitry periodically to determine the operating mode. For power saving, the transmitter is powered down when there is no valid receiver placed on the transmitting coil. If any conductive or magnetic object that can affect the total effective inductance of the transmitting coil is located nearby, the system will enter the fault mode and shut down the transmitter so that it will not be damaged. The safe mode is the nominal operation mode when the power transmission efficiency is high with minimum power loss and zero-voltage switching operation of the class-E transmitter is achieved. The determination of the operating mode is achieved by analyzing the transmitting coil voltage and supply current space, requiring no communication link between the transmitter and receiver. The linear relationship between the power delivery and the supply current can be used to calculate the power delivered to the load(s). © 2010 IEEE.


Trademark
Current Inc. | Date: 2015-09-17

Electrolyte solution for batteries. Batteries; lithium ion batteries; electrolyte solution sold as an integral component of batteries.


Trademark
Current Inc. | Date: 2015-09-17

Electrolyte solution for batteries. Batteries; lithium ion batteries; electrolyte solution sold as an integral component of batteries.


Trademark
Rad Power Bikes Llc and Current Inc. | Date: 2015-09-21

electric bicycles; electric bicycle components; electric bicycle conversion kits.


Patent
Current Inc. | Date: 2013-02-20

A lighting control system and apparatus that may be utilized with aquariums are provided. The light control system and apparatus may be utilized with various lighting fixtures. The lighting control system and apparatus provides easy control over different lighting fixtures comprising various lighting sources. In addition, a user may program various lighting characteristics and effects such as the turn on or turn off date and time, the color, the brightness, the power supplied to the lighting fixtures via different user interfaces by using different user systems. Further, multiple lighting control systems may operate seamlessly together.

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