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公开(公告)号：US10594170B2
公开(公告)日：2020-03-17
申请号：US15882651
申请日：2018-01-29
Applicant: Apple Inc.
Inventor： David R. Falkenburg , Cortland S. Tolva , James R. Walker , Samuel B. Schaevitz
Abstract: A wireless power system may use a wireless power transmitting device to transmit wireless power to a wireless power receiving device. The wireless power transmitting device may transmit wireless power at a wireless power transmission frequency. Wireless power signals at the wireless power transmission frequency can create interference with a sensitive electrical component in the wireless power receiving device when the wireless power transmission frequency lies in a sensitive frequency band associated with the component. Measurement circuitry in the wireless power receiving device can measure the wireless power transmission frequency. In response to determining that the wireless power transmission frequency lies in a sensitive frequency band, the wireless power receiving device may send an in-band wireless power level adjustment request to the wireless power transmitting device. The request causes a frequency adjustment that moves the wireless power transmission frequency out of the sensitive band.
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Patent Agency Ranking
公开(公告)号：US11271439B2
公开(公告)日：2022-03-08
申请号：US16820379
申请日：2020-03-16
Applicant: Apple Inc.
Inventor： David R. Falkenburg , Cortland S. Tolva , James R. Walker , Samuel B. Schaevitz
Abstract: A wireless power system may use a wireless power transmitting device to transmit wireless power to a wireless power receiving device. The wireless power transmitting device may transmit wireless power at a wireless power transmission frequency. Wireless power signals at the wireless power transmission frequency can create interference with a sensitive electrical component in the wireless power receiving device when the wireless power transmission frequency lies in a sensitive frequency band associated with the component. Measurement circuitry in the wireless power receiving device can measure the wireless power transmission frequency. In response to determining that the wireless power transmission frequency lies in a sensitive frequency band, the wireless power receiving device may send an in-band wireless power level adjustment request to the wireless power transmitting device. The request causes a frequency adjustment that moves the wireless power transmission frequency out of the sensitive band.
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公开(公告)号：US10608474B2
公开(公告)日：2020-03-31
申请号：US15881336
申请日：2018-01-26
Applicant: Apple Inc.
Inventor： Samuel B. Schaevitz , Cortland S. Tolva , James R. Walker
Abstract: A wireless power receiving device may have wireless power receiving circuitry with a coil and rectifier. The wireless power receiving circuitry receives wireless power signals and uses the rectifier to supply a corresponding output. The output is characterized by a current, a voltage, and a power equal to a product of the current and voltage. The output of the rectifier is supplied to a direct-current-to-direct-current power regulator integrated circuit, which supplies direct-current power to a system load and battery. A controller integrated circuit directs the power regulator circuit to dither the current while monitoring for a peak in the power. If the power regulator circuit dithers the current satisfactorily, the wireless power receiving circuitry may be operated at the peak power. If the power regulator circuitry does not dither the current in response to being directed to dither the current, a wireless power transmission level may be reduced.
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公开(公告)号：US20190067995A1
公开(公告)日：2019-02-28
申请号：US15881336
申请日：2018-01-26
Applicant: Apple Inc.
Inventor： Samuel B. Schaevitz , Cortland S. Tolva , James R. Walker
Abstract: A wireless power receiving device may have wireless power receiving circuitry with a coil and rectifier. The wireless power receiving circuitry receives wireless power signals and uses the rectifier to supply a corresponding output. The output is characterized by a current, a voltage, and a power equal to a product of the current and voltage. The output of the rectifier is supplied to a direct-current-to-direct-current power regulator integrated circuit, which supplies direct-current power to a system load and battery. A controller integrated circuit directs the power regulator circuit to dither the current while monitoring for a peak in the power. If the power regulator circuit dithers the current satisfactorily, the wireless power receiving circuitry may be operated at the peak power. If the power regulator circuitry does not dither the current in response to being directed to dither the current, a wireless power transmission level may be reduced.
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公开(公告)号：US20200227953A1
公开(公告)日：2020-07-16
申请号：US16820379
申请日：2020-03-16
Applicant: Apple Inc.
Inventor： David R. Falkenburg , Cortland S. Tolva , James R. Walker , Samuel B. Schaevitz
Abstract: A wireless power system may use a wireless power transmitting device to transmit wireless power to a wireless power receiving device. The wireless power transmitting device may transmit wireless power at a wireless power transmission frequency. Wireless power signals at the wireless power transmission frequency can create interference with a sensitive electrical component in the wireless power receiving device when the wireless power transmission frequency lies in a sensitive frequency band associated with the component. Measurement circuitry in the wireless power receiving device can measure the wireless power transmission frequency. In response to determining that the wireless power transmission frequency lies in a sensitive frequency band, the wireless power receiving device may send an in-band wireless power level adjustment request to the wireless power transmitting device. The request causes a frequency adjustment that moves the wireless power transmission frequency out of the sensitive band.
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公开(公告)号：US20190068003A1
公开(公告)日：2019-02-28
申请号：US15882651
申请日：2018-01-29
Applicant: Apple Inc.
Inventor： David R. Falkenburg , Cortland S. Tolva , James R. Walker , Samuel B. Schaevitz
Abstract: A wireless power system may use a wireless power transmitting device to transmit wireless power to a wireless power receiving device. The wireless power transmitting device may transmit wireless power at a wireless power transmission frequency. Wireless power signals at the wireless power transmission frequency can create interference with a sensitive electrical component in the wireless power receiving device when the wireless power transmission frequency lies in a sensitive frequency band associated with the component. Measurement circuitry in the wireless power receiving device can measure the wireless power transmission frequency. In response to determining that the wireless power transmission frequency lies in a sensitive frequency band, the wireless power receiving device may send an in-band wireless power level adjustment request to the wireless power transmitting device. The request causes a frequency adjustment that moves the wireless power transmission frequency out of the sensitive band.
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