公开(公告)号：US10097040B2

公开(公告)日：2018-10-09

申请号：US15027838

申请日：2014-10-23

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Andries Van Wageningen ,  Wilhelmus Gerardus Maria Ettes ,  Antonius Adriaan Maria Staring ,  Johannes Gerardus Fredericus Kablau

IPC: H02J5/00 ,  H05B6/12 ,  H02J50/12 ,  H02J50/50 ,  H05B6/06

Abstract: A thermal barrier for a wireless power transfer system comprises a first surface area (807) for coupling to a power receiver (111) to be powered by a first electromagnetic signal and a second surface area (805) for coupling to a power transmitter (101) providing a second electromagnetic signal. The thermal barrier (801) further comprises a power repeater (803) with a resonance circuit including an inductor and a capacitor. The power repeater (803) is arranged to generate the first electromagnetic signal by concentrating energy of the second electromagnetic signal towards the first surface area (807). The thermal barrier may provide thermal protection of the power transmitter (101) without unacceptable impact on the power transfer operation.

公开(公告)号：US09847651B2

公开(公告)日：2017-12-19

申请号：US14360032

申请日：2012-11-07

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Laurens Henricus Swaans ,  Antonius Adriaan Maria Staring

IPC: H02J7/02 ,  H02J7/00 ,  H02J5/00 ,  H04B5/00 ,  H02J50/10 ,  H02J50/90

CPC classification number: H02J50/40 ,  H02J5/005 ,  H02J7/0027 ,  H02J7/0044 ,  H02J7/025 ,  H02J50/10 ,  H02J50/90 ,  H04B5/0037 ,  H04B5/0075 ,  H04B5/0087

Abstract: An inductive power transmitter device provides power to a mobile device with a receiver coil. The transmitter device comprises a holder and a coil arrangement. The holder has a cavity defined by two walls, where the cavity is configured for receiving the mobile device between those surfaces. The coil arrangement has two transmitter coil units, where one of the coil units is arranged into one of the walls and the other transmitter coil unit is arranged into the other wall. Each of the coil units is configured for inductively coupling to the receiver coil of the mobile device when inserted into the cavity of the holder.

公开(公告)号：US20250079895A1

公开(公告)日：2025-03-06

申请号：US18724670

申请日：2022-12-27

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Antonius Adriaan Maria Staring ,  Aleksei Agafonov

IPC: H02J50/12 ,  H02J50/80 ,  H04B5/26 ,  H04B5/79

Abstract: A power receiver (105) communicates to a power transmitter (101) using load modulation data symbols modulated by a chip sequence with a chip sequence being divided into load time intervals with different modulation loads. The power transmitter (101) comprises a receiver (207) which includes a load measurer (209) determining measured load values of the power transfer signal for load time intervals. A chip determiner circuit (211) determines a received chip sequence from the measured load values where the received chip sequence comprises a sequence of chip values. Each chip value is determined in response to a difference between measured load values for at least two modulation load time intervals of the chip. A store (215) stores a set of chip sequences with each chip sequence linked to a data symbol. A detector (213) detects a received data symbol value in response to a correlation between the received chip sequence and chip sequences of the set of chip sequences.

公开(公告)号：US11575282B2

公开(公告)日：2023-02-07

申请号：US17443346

申请日：2021-07-26

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Andries van Wageningen ,  Antonius Adriaan Maria Staring

IPC: H02J50/80 ,  H02J50/10 ,  H02J50/40 ,  H04B5/00

Abstract: A wireless power transfer system comprises at least one power receiver (105) for receiving a power transfer from the power transmitter (101) via a wireless inductive power transfer signal. Configurers (207, 306) of the power transmitter and receiver may perform a configuration process to determine a set of power transfer parameter values which are used in a first power transfer. The power transfer parameter values and a first identity for the first power receiver (105) are stored. After a detection of an absence of the power receiver by a first controller (211), a detector (213) may detect a presence of a candidate power receiver. If the candidate power receiver is detected within a given duration and has an identity matching the first identity, an initialization processor (215) initializes a second power transfer using the set of stored parameter values. Otherwise it discards the set of stored parameter values.

公开(公告)号：US11424647B2

公开(公告)日：2022-08-23

申请号：US17319411

申请日：2021-05-13

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Andries Van Wageningen ,  Wilhelmus Gerardus Maria Ettes ,  Eddy Gerrit Veltman ,  Antonius Adriaan Maria Staring ,  Richard Henricus Maria Theelen ,  Johannes Gerardus Fredericus Kablau

IPC: H02J50/60 ,  H02J50/12

Abstract: A power transmitter (101) for a wireless power transfer system comprises a transmitter coil (103) and a driver (201) generates a drive signal for the transmitter coil (103) employing a repeating time frame with a power transfer time interval and a foreign object detection time interval. A test generator (211) generates a test drive signal for a test coil (209) during the foreign object detection time interval. A foreign object detector (207) performs a foreign object detection test based on a measured parameter for the test drive signal. Prior to entering a power transfer phase, an adapter (213) controls the power transmitter (101) to operate in a foreign object detection initialization mode in which a preferred value of a signal parameter for the test drive signal is determined in response to at least a first message received from the power receiver (105). During the foreign object detection time interval the signal parameter of is set to the preferred value.

公开(公告)号：US20210351632A1

公开(公告)日：2021-11-11

申请号：US17385099

申请日：2021-07-26

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Andries van Wageningen ,  Antonius Adriaan Maria Staring

IPC: H02J50/80 ,  H02J50/10 ,  H02J50/40 ,  H04B5/00

Abstract: A wireless power transfer system comprises at least one power receiver (105) for receiving a power transfer from the power transmitter (101) via a wireless inductive power transfer signal. Configurers (207, 306) of the power transmitter and receiver may perform a configuration process to determine a set of power transfer parameter values which are used in a first power transfer. The power transfer parameter values and a first identity for the first power receiver (105) are stored. After a detection of an absence of the power receiver by a first controller (211), a detector (213) may detect a presence of a candidate power receiver. If the candidate power receiver is detected within a given duration and has an identity matching the first identity, an initialization processor (215) initializes a second power transfer using the set of stored parameter values. Otherwise it discards the set of stored parameter values.

公开(公告)号：US11095168B2

公开(公告)日：2021-08-17

申请号：US16629749

申请日：2018-07-13

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Andries van Wageningen ,  Antonius Adriaan Maria Staring

IPC: H02J50/80 ,  H02J50/10 ,  H02J50/40 ,  H04B5/00

Abstract: A wireless power transfer system comprises at least one power receiver (105) for receiving a power transfer from the power transmitter (101) via a wireless inductive power transfer signal. Configurers (207, 306) of the power transmitter and receiver may perform a configuration process to determine a set of power transfer parameter values which are used in a first power transfer. The power transfer parameter values and a first identity for the first power receiver (105) are stored. After a detection of an absence of the power receiver by a first controller (211), a detector (213) may detect a presence of a candidate power receiver. If the candidate power receiver is detected within a given duration and has an identity matching the first identity, an initialization processor (215) initializes a second power transfer using the set of stored parameter values. Otherwise it discards the set of stored parameter values.

公开(公告)号：US10897154B2

公开(公告)日：2021-01-19

申请号：US15745722

申请日：2016-07-14

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Andries Van Wageningen ,  Antonius Adriaan Maria Staring

IPC: H02J50/10 ,  H02J50/40 ,  H02J50/80 ,  H02J50/60 ,  H02J7/02 ,  H02J50/12 ,  H02J7/00

Abstract: An inductive wireless power transmitter is presented for transmitting an inductive wireless power signal to at least two inductive wireless power receivers. The power transmitter coordinates communication with the power receivers in time slots. It allocates a measurement time slot for synchronised power measurement by the power transmitter and the power receivers. During the measurement time slot the power transmitter measures the amount of power it transmits. After the end of the measurement time slot it receives from the power receivers the measured amounts of power received. From the measured power transmitted and power received, it determines an amount of power lost. If the amount of power lost exceeds a threshold value, it reduces the power of the inductive wireless power signal.

公开(公告)号：US10778048B2

公开(公告)日：2020-09-15

申请号：US16160476

申请日：2018-10-15

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Andries Van Wageningen ,  Antonius Adriaan Maria Staring

IPC: H02J50/60 ,  H02J50/10 ,  H02J50/90 ,  H02J50/12

Abstract: A wireless power transfer system includes a power transmitter (101) providing power to a power receiver (105) via an inductive power signal. The power transmitter (101) and receiver (105) can operate in different modes including a test mode and a power transfer mode. Operating parameters of the power receiver (105) are constrained in the test mode relative (and specifically the loading). A foreign object detector (209) generates a foreign object detection estimate from a comparison of a measured load to an expected load of the inductive power signal when the power receiver is operating in the test mode. A controller (211) enters the power transmitter (101) and receiver (103) into the power transfer mode when the foreign object detection estimate is indicative of no detection of a foreign object. In the power transfer mode, a parasitic power loss detector (207) generates a parasitic power loss detection for the power transfer if a parasitic power loss estimate is outside a range.

公开(公告)号：US10396595B2

公开(公告)日：2019-08-27

申请号：US15560259

申请日：2016-04-08

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Andries Van Wageningen ,  Antonius Adriaan Maria Staring

IPC: H04B5/00 ,  H02J50/10 ,  H02J7/02 ,  H02J50/40 ,  H02J50/80

Abstract: A method is presented of allocating communication time slots contained in repeating frames for communication between an inductive wireless power transmitter and at least two inductive wireless power receivers, wherein the power transmitter and the power receivers are arranged to communicate by means of modulation and demodulation of an inductive power signal. The transmitter sends synchronization messages marking the start of the communication time slots and the frames, and messages indicating if a time slot is unallocated. A receiver may send, during an unallocated time slot, send a message to the transmitter requesting allocation of the unallocated communication time slot. The transmitter subsequently sends messages to indicate if the communication was successfully received, and if the allocation request is granted.