-
公开(公告)号：US20210050750A1
公开(公告)日：2021-02-18
申请号：US17085846
申请日：2020-10-30
Applicant: Apple Inc.
Inventor： Kunal Bhargava , Fady Mishriki , Saining Ren , Daniel Robertson , Nigel James Gray , Rex Huang
Abstract: In an inductively coupled power transmitter a force detector that detects the presence of a potential device by monitoring forces applied to a surface of the power transmitter and activates the inductively coupled power transmitter upon detection of a potential device. An inductively coupled power transmitter having a proximity detector that detects the presence and location of a potential device by monitoring the proximity of devices to a surface of the power transmitter and activates the inductively coupled power transmitter upon detection of a potential device. The transmitter preferably has one or more detection coils each having an area much greater than that of the transmitter coils for detecting the presence of a potential device. An inductively coupled power transmitter including a plurality of transmitter coils proximate a charging surface and a controller selecting and driving a combination of transmitter coils providing the coupling between the power transmitter and a power receiver meeting a selection criteria.
-
公开(公告)号：US20200044491A1
公开(公告)日：2020-02-06
申请号：US16196975
申请日：2018-11-20
Applicant: Apple Inc.
Inventor： Weihong Qiu , Nan Liu , Dmitry Berdnikov , Zaki Moussaoui , Rex Huang
Abstract: A wireless power transmission system has a wireless power receiving device that can be charged using multiple different types of wireless power transmitting devices. The different types of wireless power transmitting devices have power transmitting coils that exhibit different levels of magnetic coupling with the power receiving coil of the wireless power receiving device. The wireless power receiving device may include capacitors, resistors, and/or other loading circuits that can be independently switched into use depending on the level of magnetic coupling that is detected, on a rectified voltage level, on the size of the output load, and/or on information conveyed during handshaking operations to present a desired impedance adjustment at the power receiving coil so that data signal can be properly conveyed between the power receiving device and the power transmitting device.
-
公开(公告)号：US10811913B2
公开(公告)日：2020-10-20
申请号：US16196975
申请日：2018-11-20
Applicant: Apple Inc.
Inventor： Weihong Qiu , Nan Liu , Dmitry Berdnikov , Zaki Moussaoui , Rex Huang
Abstract: A wireless power transmission system has a wireless power receiving device that can be charged using multiple different types of wireless power transmitting devices. The different types of wireless power transmitting devices have power transmitting coils that exhibit different levels of magnetic coupling with the power receiving coil of the wireless power receiving device. The wireless power receiving device may include capacitors, resistors, and/or other loading circuits that can be independently switched into use depending on the level of magnetic coupling that is detected, on a rectified voltage level, on the size of the output load, and/or on information conveyed during handshaking operations to present a desired impedance adjustment at the power receiving coil so that data signal can be properly conveyed between the power receiving device and the power transmitting device.
-
-
Search Results
3
records
(took 0.01 seconds)
