U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Icon_funbox Did You Know...

...that "patent leather" got its name because the process of applying the polished black finish to leather was once patented?

Newsletter  PatentStorm News

Make the Most of Our Site

See this month's Top Inventors and Most Cited Patents.

Stay on top of the latest innovations by subscribing to an RSS feed.

Registered users: Manage your profile.

 

Class 320/108 - Charger inductively coupled to cell or battery


Subclass of Class 320 - Electricity: battery or capacitor charging or discharging
Definition: Subject matter wherein the charging circuit includes a transformer
No. of patents: 358
Last issue date: 05/29/2012


1                  
NumberTitleIssue Date
8188709Power transmission control device, power transmitting device, non-contact power transmitting system, and electronic instrument
A power transmission control device used for a non-contact power transmission system includes an operation mode switching terminal that receives an operation mode switch control signal that switches a mode between an automatic mode and a switch mode, a power transmi...
05/29/2012
8188708Battery charger with high frequency transformer
A battery-charging system includes a power supply having a high-frequency transformer and is configured to deliver a battery charging power to charge at least one battery. The high-frequency transformer has a bobbin including an elongated top and bottom surfaces and...
05/29/2012
8183828Charging apparatus
A charging apparatus includes: a charging unit configured to perform a contactless charging operation for a placed external device; a detector configured to detect a position of a placed object; a determining unit configured to determine that the placed object is an...
05/22/2012
8183827Adaptive charger system and method
A method and apparatus is used for adaptive inductive charging of a device. Charging includes detecting the presence of a device capable of receiving an inductive charge, determining a set of parameters for inductively charging the device, and transmitting an induct...
05/22/2012
8179089Power transmission control apparatus, power transmission apparatus, contactless power transmission system, and data determination method
A power transmission control apparatus is a power transmission control apparatus provided in a power transmission apparatus included in a contactless power transmission system where power is transmitted from the power transmission apparatus to a power reception appa...
05/15/2012
8174233Magnetically coupled battery charging system
Inductively coupled battery charging systems and methods are provided. Transmit circuitry can include a transmit coil operatively part of a transmit resonant circuit that exhibits resonance at a transmit resonant frequency and an unloaded Q value of at least about 2...
05/08/2012
8174234Magnetically coupled battery charging system
Inductively coupled battery charging systems and methods are provided. Transmit circuitry can include a transmit coil operatively part of a transmit resonant circuit that exhibits resonance at a transmit resonant frequency and an unloaded Q value of at least about 2...
05/08/2012
8174232Solar charging apparatus and method for a mobile communication terminal
A contactless charging apparatus, comprising: a battery having an induction coil; and a charging unit for supplying a current generated by condensing solar light to a built-in magnetic field generating coil for charging the battery by inductive coupling between the ...
05/08/2012
8169185System and method for inductive charging of portable devices
A system and method for variable power transfer in an inductive charging or power system. In accordance with an embodiment the system comprises a pad or similar base unit that contains a primary, which creates an alternating magnetic field. A receiver comprises a me...
05/01/2012
8159182Contactless power transferring coil unit, mobile terminal, power transmitting apparatus, and contactless power transferring system
A contactless power transferring coil unit is provided. The contactless power transferring coil unit includes a flat coil, a magnetic film, and a leaking flux detecting coil. The flat coil is formed by winding a conductive wire into a spiral on a substantially flat ...
04/17/2012
8159183Contact-less power supply, contact-less charger systems and method for charging rechargeable battery cell
The present invention relates to a contact-less power supply magnetically coupled to a battery device having a receiving coil therein, for contact-less charging the battery device, the contact-less power supply having a sending coil array including a plurality of se...
04/17/2012
8143844Charging device
The charging circuit includes an antenna circuit receiving radio waves, a rectifier circuit rectifying AC voltage generated in the antenna circuit to generate DC voltage, and a power supply circuit adjusting the magnitude of the DC voltage and charging a rechargeabl...
03/27/2012
8143846Siderail accessory charging system
A charging system comprises an accessory module and a charging system. The accessory module includes a housing with a coupling portion and a power source. The coupling portion includes an engagement surface and a coupler configured to removably couple the accessory ...
03/27/2012
8143845Cable voltage drop compensation for battery chargers
A battery charger may be configured to charge a battery by way of a charging cable. A DC gain of a voltage control loop of the battery charger may be limited to a predetermined value to compensate for voltage drop on the charging cable. For example, a DC gain of an ...
03/27/2012
8129943Induction charger for charging electronic device
An induction charger for charging an electronic device includes a carrying car, a transmission assembly, a permanent magnet, an alternating current power supply, and an induction coil. The carrying car includes a base defined at least four slots scatted therein, a c...
03/06/2012
8129942Contactless charging method for charging battery
A system, method and apparatus for contact-less charging of battery operated devices is presented. There is a host charger with a power converter and resonant tank circuit and a portable device where the battery is located, with a battery charging control IC. The me...
03/06/2012
8120316Wireless charging system
A wireless charging system charging an electronic device wirelessly via electromagnetic induction between a number of transmitting coils formed in the wireless charging system and a receiving coil formed in the electronic device. The wireless charging system selects...
02/21/2012
8120317Wireless charger and wireless charging method thereof
A wireless charger for charging an electronic device includes a holder with a primary coil and a number of holding coils fixed thereon and a resilient member sleeved thereon. The wireless charger further includes a sensing module, a storing module, a comparing modul...
02/21/2012
8115449Wireless power charging system
A non-contact power charging system includes a wireless power transmission apparatus 10 for transmitting a power signal from a primary core 14 via a resonant converter 13 by the control of a transmission control unit 12; and a wireless po...
02/14/2012
8115447Battery pack with a secondary coil electromagnetically rechargeable by magnetic induction effect
A battery pack rechargeable by a magnetic induction effect incorporates a secondary coil electromagnetically coupled to a primary coil of a battery charger and a secondary battery rechargeable by electric power induced to the secondary coil. The secondary battery is...
02/14/2012
8115448Systems and methods for wireless power
The present invention is a wireless power system which includes components which can be recharged by harvesting wireless power, wireless power transmitters for transmitting the power, and devices which are powered from the components. Features such as temperature mo...
02/14/2012
8111041Power transmission control device, power reception control device, non-contact power transmission system, power transmission device, power reception device, and electronic instrument
A power reception device transmits authentication information (e.g., start code, manufacturer ID, product ID, rated power information, and resonance characteristic information) to a power transmission device before starting normal power transmission by a non-contact...
02/07/2012
8111042Integrated wireless resonant power charging and communication channel
A power delivery system wirelessly deliver electric power and a communication signal to a target device. The power delivery system includes a power transmitting unit having a power source operable to source alternating current power and a sending resonant coupling c...
02/07/2012
8102147Wireless multi-charger system and controlling method thereof
Disclosed are a wireless multi-charger system capable of saving the total charging time of a large number of wireless power transmission devices since one wireless multi-power transmission device includes a plurality of the wireless power transmission devices so tha...
01/24/2012
8098043Induction type power supply device
An induction type power supply device includes a power supply base unit having a connection interface connectable, an oscillator circuit for producing an AC signal upon connection of the connection interface to an electric outlet, a driver circuit for amplifying the...
01/17/2012
8089245Noncontact charging device with temperature detection
A noncontact charging device includes a mounting portion, a primary transmission coil, a temperature-detecting element, and a control unit. A device charged in a noncontact manner is mounted on the mounting portion. The primary transmission coil supplies power to a ...
01/03/2012
8089246Computer system and wireless device holder thereof
A computer system includes a wireless device to generate wireless signals, a computer comprising a chassis and a motherboard, and a wireless device holder positioned on the chassis to accommodate and recharge the wireless device. The wireless device includes a recha...
01/03/2012
8084991Power reception device, electronic apparatus, and non-contact power transmission system
A power reception device includes a first resistance element having one end electrically connected to one end of a secondary coil which is able to be electromagnetically coupled to a primary coil of a power transmission devices a second resistance element having one...
12/27/2011
8067921Recharging device and recharging system using same
A recharging system for wireless charging comprising an electronic device and a recharging device. The electronic device comprises a first electromagnetic induction device and a rechargeable battery. The recharging device comprises a detection layer, a second electr...
11/29/2011
8058837Charging system for an article of footwear
An article of footwear and a footwear housing is disclosed. The footwear housing includes a charging station that can be used to charge a battery in the footwear housing. ...
11/15/2011
8054036Power transmission control device, power reception control device, non-contact power transmission system, power transmission device, power reception device, and electronic instrument
A power transmission device performs power-saving power transmission that transmits a small amount of power as compared with normal power transmission when the power transmission device has detected that a battery of a load has been fully charged so that the operati...
11/08/2011
8054037Electronic device
An electric power charge and discharge system for an electronic device having a battery, by which the electronic device can be used for a long period of time. In a wireless communication device including a wireless driving portion including a first battery and a wir...
11/08/2011
8040103Battery charging apparatus with planar inductive charging platform
A battery charging apparatus comprises an inductive charging platform including a charging surface on which an electrical device to be charged is to be placed, and a first winding for generating lines of magnetic flux generally perpendicular to the charging surface....
10/18/2011
8035340Controlling inductive power transfer systems
An inductive power transfer system comprises a primary unit, having a primary coil and an electrical drive unit which applies electrical drive signals to the primary coil so as to generate an electromagnetic field. The system also comprises at least one secondary de...
10/11/2011
8030887Non-contact power charging system and control method thereof
A non-contact power charging, in which power transmission can be interrupted when foreign materials are deposited on a charge plate of the non-contact power charging system. A charging operation can be continuously maintained at a stable voltage even if a non-contac...
10/04/2011
8026693Induction charger for portable battery-powered devices
A charging apparatus for a portable battery-powered device, including one or more of the following: a receiver that inserts into a charging jack of the portable battery-powered device, an outer casing that removably receives the portable battery-powered device and t...
09/27/2011
8026694Power transmission control device, power transmission device, non-contact power transmission system, and electronic instrument
A power-transmission-side control circuit causes a power transmission device to perform temporary power transmission when a switch provided in a power-transmission-side instrument has been turned ON, and performs ID authentication based on ID authentication informat...
09/27/2011
8022665Bidirectional power converting device
A bidirectional power converting device coupled between first and second power storage units includes: a coupling circuit including a first winding coupled to the first power storage unit, and a second winding coupled in series to the first winding; first and second...
09/20/2011
8013568Contact-less chargeable battery and charging device, battery charging set, and charging control method thereof
The present invention relates to a wireless charger for a mobile communication terminal, which allows charging a plurality of batteries in a conveniently way without any terminal connection of the batteries to chargers for various mobile communication terminals such...
09/06/2011
8008888Electrical powered vehicle and power feeding device for vehicle
An electrical powered vehicle includes a secondary self-resonant coil, a secondary coil, a rectifier, and a power storage device. The secondary self-resonant coil is configured to be magnetically coupled with a primary self-resonant coil of a power feeding device by...
08/30/2011
1                  
 
Sign InRegister
Username  
Password   
forgot password?