Abstract: The invention relates to a method that comprises receiving wireless energy from a wireless energy transmitter device; determining a power level value of the received wireless energy; manipulating value of the determined power level to obtain a manipulated power level value; and sending the manipulated power level value to the wireless energy transmitter device so that a FOD does not prevent the power transfer from the wireless energy transmitter device. The invention further relates to an apparatus, a device and a computer program product for performing the method.

Abstract: The invention relates to a method that comprises receiving wireless energy from a wireless energy transmitter device; determining a power level value of the received wireless energy; manipulating value of the determined power level to obtain a manipulated power level value; and sending the manipulated power level value to the wireless energy transmitter device so that a FOD does not prevent the power transfer from the wireless energy transmitter device. The invention further relates to an apparatus, a device and a computer program product for performing the method.

Abstract: The invention relates to a method that comprises receiving wireless energy from a wireless energy transmitter device; determining a power level value of the received wireless energy; manipulating value of the determined power level to obtain a manipulated power level value; and sending the manipulated power level value to the wireless energy transmitter device so that a FOD does not prevent the power transfer from the wireless energy transmitter device. The invention further relates to an apparatus, a device and a computer program product for performing the method.

Abstract: The invention relates to wireless energy transfer systems wherein electromagnetic field is used to transfer energy over air. An apparatus of a wireless energy transfer system comprises an inductive energy transfer coil (43) comprising at least two adjacent wire turns, wherein said turns are arranged to be coupled to a battery (41) such that said turns vertically surround the battery (41) during inductive energy transfer. The invention further relates to a method for producing the apparatus and an electronic device comprising the apparatus.

Abstract: In accordance with an example embodiment of the present invention, an apparatus (200) comprises a wireless power transmitter (241) connectable to a power supply interface (201) and to a battery (204); power supply detection circuitry (213) configured to determine whether the power supply interface (201) is capable of powering the wireless power transmitter (241); wireless power control circuitry (220) configured to, in response to determining that the power supply interface (201) is capable of powering the wireless power transmitter (241), enable power delivery from the power supply interface (201) to the wireless power transmitter (241).

Abstract: A method and apparatus for inductively obtaining alternating current from a first variable magnetic field with an input coil; forming with an output coil a second variable magnetic field using the alternating current; and conducting the alternating current from the input coil to the output coil.

Abstract: There is disclosed a method comprising providing a first signal to an apparatus comprising a protection circuit and an output for providing electric power. The protection circuit comprises at least an overdischarge detection element and a discharging control output. The first signal is used to change a voltage level at an input of the overdischarge detection element of the protection circuit. The change of the voltage level at the input of overdischarge detection element is detected, and a second signal is provided at the discharging control output to switch off the output of the apparatus. There is also disclosed an apparatus comprising a protection circuit comprising at least an overdischarge detection element and a discharging control output. The apparatus also comprises an output for providing electric power; the protection circuit; and a first signal input adapted to receive a first signal to change a voltage level at an input of the overdischarge detection element of the protection circuit.

Abstract: A method and apparatus (100) are disclosed for wirelessly communicating by a proximity communication circuitry comprising an antenna with a proximate device (200) according to a proximity communication protocol. The proximity circuitry is disabled when not needed. Voltage in the antenna caused by an electromagnetic power signal (222) is detected when the proximity communication circuitry is disabled. The detection of voltage is independent of whether the electromagnetic signal (222) complies with the proximity communication protocol. An event is triggered in response to the detected voltage. Correspondingly a method and device (200) for externally controlling the apparatus (100) are disclosed in which a user command is detected and responsively to the user command, an electromagnetic signal (222) is transmitted to the apparatus (100) for triggering the event. The electromagnetic signal (222) has a regular wave form.

Abstract: An apparatus including a processor configured to cause detecting a second apparatus including a wireless charging unit being attached to the apparatus; determining a parameter concerning the second apparatus; and automatically adjusting at least one functionality of the apparatus in accordance with the parameter.

Abstract: The invention relates to an apparatus, to an accessory, to methods and computer program products for them, and to a system comprising the apparatus and the accessory. The apparatus comprises at least one processor, memory including computer program code. The accessory comprises an interface with at least one power pin and a signaling pin; and resisting means configured to be coupled to a battery identification resistor of a battery via the signalling pin. The apparatus further comprises an interface with at least one power pin and a battery identification pin, and detection means configured to detect a resistance associated with the battery identification pin and to determine, based on the detected resistance, whether an accessory is attached to the apparatus.

Abstract: In accordance with an example embodiment of the present invention, an apparatus (200) comprises a wireless power transmitter (241) connectable to a power supply interface (201) and to a battery (204); power supply detection circuitry (213) configured to determine whether the power supply interface (201) is capable of powering the wireless power transmitter (241); wireless power control circuitry (220) configured to, in response to determining that the power supply interface (201) is capable of powering the wireless power transmitter (241), enable power delivery from the power supply interface (201) to the wireless power transmitter (241).

Abstract: The invention relates to decreasing power consumption of wireless charging devices in standby condition. A method for decreasing power consumption comprises feeding at least one detecting signal as a pulse to a wireless charging coil (120) of a power transmitter (100) comprising a charging area, wherein the detecting signal corresponds with an expected resonance frequency of the wireless charging coil (120) measuring a reflected signal caused by feeding the detecting signal, determining whether the reflected signal satisfies a non-resonance condition and activating a power transmitting circuit in response to determining that the reflected signal satisfies the non-resonance condition. The invention further relates to an apparatus and a computer program product.

Abstract: An apparatus including a processor configured to cause detecting a second apparatus including a wireless charging unit being attached to the apparatus; determining a parameter concerning the second apparatus; and automatically adjusting at least one functionality of the apparatus in accordance with the parameter.

Abstract: The invention relates to a method that comprises receiving wireless energy from a wireless energy transmitter device; determining a power level value of the received wireless energy; manipulating value of the determined power level to obtain a manipulated power level value; and sending the manipulated power level value to the wireless energy transmitter device so that a FOD does not prevent the power transfer from the wireless energy transmitter device. The invention further relates to an apparatus, a device and a computer program product for performing the method.

Abstract: A method and apparatus (100) are disclosed for wirelessly communicating by a proximity communication circuitry comprising an antenna with a proximate device (200) according to a proximity communication protocol. The proximity circuitry is disabled when not needed. Voltage in the antenna caused by an electromagnetic power signal (222) is detected when the proximity communication circuitry is disabled. The detection of voltage is independent of whether the electromagnetic signal (222) complies with the proximity communication protocol. An event is triggered in response to the detected voltage. Correspondingly a method and device (200) for externally controlling the apparatus (100) are disclosed in which a user command is detected and responsively to the user command, an electromagnetic signal (222) is transmitted to the apparatus (100) for triggering the event. The electromagnetic signal (222) has a regular wave form.

Abstract: The invention relates to wireless energy transfer systems wherein electromagnetic field is used to transfer energy over air. An apparatus of a wireless energy transfer system comprises an inductive energy transfer coil (43) comprising at least two adjacent wire turns, wherein said turns are arranged to be coupled to a battery (41) such that said turns vertically surround the battery (41) during inductive energy transfer. The invention further relates to a method for producing the apparatus and an electronic device comprising the apparatus.

Abstract: The invention relates to an apparatus comprising an autobalancing circuit that is configured to be electrically connected to a first battery and a second battery. The autobalancing circuit is configured to determine voltage difference Vbat1?Vbat2 between the output voltage of the first battery Vbat1 and the output voltage of the second battery Vbat2. If the voltage difference Vbat1?Vbat2 is higher than a predetermined limiting voltage, the autobalancing circuit is configured to limit balancing current between the first battery and the second battery until the output voltage difference is less than the predetermined limiting voltage. The invention further relates to a method and a mobile device comprising the apparatus.

Abstract: There is disclosed a method comprising providing a first signal to an apparatus comprising a protection circuit and an output for providing electric power. The protection circuit comprises at least an overdischarge detection element and a discharging control output. The first signal is used to change a voltage level at an input of the overdischarge detection element of the protection circuit. The change of the voltage level at the input of overdischarge detection element is detected, and a second signal is provided at the discharging control output to switch off the output of the apparatus. There is also disclosed an apparatus comprising a protection circuit comprising at least an overdischarge detection element and a discharging control output. The apparatus also comprises an output for providing electric power; the protection circuit; and a first signal input adapted to receive a first signal to change a voltage level at an input of the overdischarge detection element of the protection circuit.

Abstract: A method and apparatus for inductively obtaining alternating current from a first variable magnetic field with an input coil; forming with an output coil a second variable magnetic field using the alternating current; and conducting the alternating current from the input coil to the output coil.

Abstract: An apparatus comprising a connector, at least one cover member, and at least one wireless charging antenna is provided. The connector is configured to interface with at least a charging connector of a mobile device, and the at least one cover member is configured to extend away from the mobile device in an opened configuration. The at least one wireless charging antenna is physically coupled to the cover member and electrically coupled to the connector. The charging antenna is configured to receive a wireless transmission of electricity and to deliver the electricity via the connector to charge or power the mobile device.