公开(公告)号：US10693323B2

公开(公告)日：2020-06-23

申请号：US15773421

申请日：2016-11-01

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Neil Francis Joye ,  Klaas Jacob Lulofs

IPC: H02J50/12 ,  H02J5/00 ,  H02J50/80 ,  H02J7/02 ,  H04B5/00

Abstract: A power transmitter (101) inductively transferring power to a power receiver (105) comprises a resonance circuit (201) comprising a transmitter coil (103). A driver (203) generates a drive signal for the resonance circuit (201) and a data receiver (513) receives messages load modulated onto a power transfer signal by the power receiver (105) during communication time intervals. An error unit (507) determines a coil current error and a control loop (511) controls the current through the transmitter coil (103) in response to the coil current error with the control loop (511) being active during the communication time intervals. A loop response of the control loop is attenuated for coil current errors in a reduced control range relative to coil current error indications outside the reduced control range, where the reduced control range includes a zero coil current error.

公开(公告)号：US10231572B2

公开(公告)日：2019-03-19

申请号：US15101960

申请日：2014-12-05

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Jasper De Vreede ,  Karel Johannes Adrianus Van Den Aker ,  Franciscus Johannes Gerardus Hakkens ,  Egbertus Reinier Jacobs ,  Mart Kornelis-Jan Te Velde ,  Christoph Dobrusskin ,  Gerben Kooijman ,  Klaas Jacob Lulofs ,  Frederik Jan De Bruijn ,  Johannes Wilhelmus Weekamp ,  Susanne Maaike Valster

IPC: A47J31/44 ,  A47J31/36 ,  A47J31/40 ,  B65D85/804 ,  A47J31/00

Abstract: The present invention relates to a consumable recognition system for recognizing placement and/or type of consumable containing a food substance for the preparation of a beverage by use of a beverage dispenser. To enable the recognition of placement and/or type of consumable in a simple, foolproof and easily implementable way the system comprises a plurality of magnetic and/or electric field elements (31, 32, 33, 301) for separately sensing a magnetic and/or electric field, wherein said consumable comprises one or more magnetically and/or electrically conductive elements (42, 51, 61, 71, 81, 82, 91, 92) and the sensed magnetic fields depend on at least one characteristic of the one or more magnetically and/or electrically conductive elements, a driver (34) for providing drive currents to said magnetic and/or electric field elements, and a signal processor (35) for recognizing placement and/or type of consumable based on the sensed magnetic and/or electric fields.

公开(公告)号：US11735957B2

公开(公告)日：2023-08-22

申请号：US16981303

申请日：2019-06-26

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Martijn Gerarda Lambertus Justinus Van Uden ,  Klaas Jacob Lulofs ,  Roelf Van Der Wal

IPC: H02J50/12 ,  H02M3/335 ,  H02J7/02 ,  H02M7/5387 ,  H02M3/00

CPC classification number: H02J50/12 ,  H02J7/02 ,  H02M3/01 ,  H02M3/33573 ,  H02M3/33584 ,  H02M7/5387

Abstract: A battery includes a first electronic circuit configured to operate in a transfer mode to wirelessly transfer power to a device and to operate in a receive mode to wirelessly receive power from the device. The first electronic circuit also configured to adapt a voltage gain of the first electronic circuit to compensate for a voltage drop between the battery and the device during any one or more of the wireless transfer of power to the device when the battery is operating in the transfer mode and the wireless receipt of power from the device when the battery is operating in the receive mode.

公开(公告)号：US10263469B2

公开(公告)日：2019-04-16

申请号：US14890785

申请日：2014-05-23

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Andries Van Wageningen ,  Klaas Jacob Lulofs

IPC: H02J50/00 ,  H02J50/12 ,  H02J50/40 ,  H02J50/80 ,  H02J5/00 ,  H02J7/02 ,  H04B5/00 ,  H02J50/10 ,  H02J7/00

Abstract: A power transmitter (101) is arranged to transfer power to a power receiver (105) via a wireless inductive power transfer signal transmitted from a transmit coil (103) to a power receiver (105). A first communication unit (305) communicates a message to the power receiver (105) on a first communication link A second communication unit (307) receives data from the power receiver (105) on a separate second communication link having a longer range. The power receiver (105) comprises a third communication unit (405) which receives the first message. A response generator (407) generates a response message to the message and a fourth communication unit (409) transmits the response message to the power transmitter (103) over the second communication link. The power transmitter (103) determines an expected response message to the message and a power controller (303) controls the power level of the power transfer signal dependent on whether a message is received on the second communication link corresponding to the expected response message.

公开(公告)号：US10193393B2

公开(公告)日：2019-01-29

申请号：US15506119

申请日：2015-09-11

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Wilhelmus Gerardus Maria Ettes ,  Antonius Adriaan Maria Staring ,  Klaas Jacob Lulofs ,  Eddy Gerrit Veltman

IPC: H01F27/42 ,  H01F37/00 ,  H01F38/00 ,  H02J50/12 ,  H02M3/337 ,  H04B5/00 ,  H02J5/00 ,  H02J7/02

Abstract: A wireless power transfer system includes a power receiver and a power transmitter providing power to this using an inductive power signal. The power transmitter comprises a variable resonance circuit (201) having a variable resonance frequency and generating the inductive power signal. A driver (203) generates the drive signal and a load modulation receiver (303) demodulates load modulation of the inductive power signal. An adaptor (305) adapts the operating frequency and the resonance frequency to converge, and specifically is arranged to control the operating frequency and the resonance frequency to be substantially the same. The adaptation of the operating frequency and the resonance frequency is further in response to a demodulation quality measure. The invention may allow improved communication, and in particular may reduce intermodulation distortion.

公开(公告)号：US10536035B2

公开(公告)日：2020-01-14

申请号：US15772271

申请日：2016-11-01

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Neil Francis Joye ,  Klaas Jacob Lulofs ,  Eddy Gerrit Veltman ,  Andries Van Wageningen

IPC: H02J50/12 ,  H02J7/02 ,  H02J50/80

Abstract: A wireless power transmitter (101)) comprises a resonance circuit (201) comprises a transmitter inductor (103) for generating a power transfer signal for wirelessly transferring power to the power receiver (105). A driver (203) generates a drive signal for the resonance circuit (201) and a resonance modification circuit (505) aligns the resonance frequency of the resonance circuit (201) with the drive frequency of the drive signal by slowing a state change for resonance circuit (201) for a fractional time interval of cycles of the drive signal. A load estimator (509) generates a load estimate reflecting an equivalent load resistor for the transmitter inductor (103) reflecting the loading of the power transfer signal. A drive frequency adapter (511) then adapts the drive frequency in response to the load estimate. The invention may in particular improve load modulation communication quality.

公开(公告)号：US10523052B2

公开(公告)日：2019-12-31

申请号：US15503157

申请日：2015-09-14

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Wilhelmus Gerardus Maria Ettes ,  Antonius Adriaan Maria Staring ,  Klaas Jacob Lulofs ,  Eddy Gerrit Veltman

IPC: H02J50/10 ,  H02J5/00 ,  H02J50/12 ,  H02J7/02 ,  H02J17/00

Abstract: A wireless power transfer system includes a power receiver and a power transmitter providing power using an inductive power signal. The power transmitter includes a resonance circuit having capacitive and inductive impedances, and a driver configured to generate a drive signal for the resonance circuit. A frequency modification circuit is configured to control the resonance frequency of the resonance circuit by slowing a state change for the capacitive and/or inductive impedance for a fractional time interval of at least some cycles of the drive signal, The frequency modification circuit is configured to align at least one of a start time and an end time for the fractional time interval to transitions of a timing signal. In the power transmitter, the driver is configured to generate the timing signal to have transitions synchronized to the drive signal. The slowing may be by impeding current flow between the capacitive and inductive impedances.

公开(公告)号：US09962505B2

公开(公告)日：2018-05-08

申请号：US14730572

申请日：2015-06-04

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Alphonsus Tarcisius Jozef Maria Schipper ,  Michael James Robbert Leppard ,  Jonathan Stanley Harold Denyer ,  Anthony Dyche ,  Klaas Jacob Lulofs ,  Jacob Roger Haartsen

IPC: A61M15/00 ,  A61M16/18 ,  A61M16/10 ,  A61M16/00 ,  A61M11/00 ,  A61B5/11 ,  A61B5/00 ,  G01P5/10 ,  G01P5/12 ,  G01P13/00 ,  G08B21/04 ,  A61M11/04 ,  A61M5/168

CPC classification number: A61M11/005 ,  A61B5/1117 ,  A61B5/681 ,  A61B5/6831 ,  A61B2562/0219 ,  A61B2562/0271 ,  A61M5/16886 ,  A61M11/003 ,  A61M11/042 ,  A61M15/00 ,  A61M16/0003 ,  A61M16/104 ,  A61M16/18 ,  A61M2016/0021 ,  A61M2016/0027 ,  A61M2016/003 ,  A61M2205/332 ,  A61M2205/3334 ,  A61M2205/3368 ,  A61M2205/3375 ,  A61M2205/50 ,  A61M2205/82 ,  G01P5/10 ,  G01P5/12 ,  G01P13/006 ,  G08B21/0446 ,  Y10T29/49117 ,  Y10T29/49128

Abstract: A nebulizer comprises a head detachably coupled to a body. The head comprises a nebulizer, an air channel and a flow sensor. A nebulized liquid is released in an air channel that ends in a mouth piece through which a user inhales and exhales. The inhaling and exhaling causes a flow in the air channel which is detected with the flow sensor. The nebulizer is controlled by a controller included in the body.

公开(公告)号：US11936208B2

公开(公告)日：2024-03-19

申请号：US17779185

申请日：2020-12-03

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Wilhelmus Gerardus Maria Ettes ,  Klaas Jacob Lulofs ,  Pascal Leonard Maria Theodoor Lebens ,  Friso Rietstra

IPC: H02J50/60 ,  H01F38/14 ,  H02J50/12

CPC classification number: H02J50/60 ,  H01F38/14 ,  H02J50/12

Abstract: A power transmitter (101) comprises a driver (201) generating a drive signal for a transmitter coil to generate a power transfer signal during a power transfer time interval and an electromagnetic test signal during a foreign object detection time interval. A set of balanced detection coils (207, 209) comprise two detection coils arranged such that signals induced in the two detection coils by an electromagnetic field generated by the transmitter coil compensate each other. A foreign object detector (205) is coupled to the detection coils and performs foreign object detection during the foreign object detection time interval. The foreign object detector (205) is arranged to detect a foreign object in response to a property of a signal from the detection coils meeting a foreign object detection criterion. A transformer (1101) has a primary winding and a secondary winding coupled in series with the set of balanced detection coils A compensation circuit (1103) is coupled to the primary winding and arranged to generate a compensation drive signal for the primary winding which offsets a combined voltage of the set of detection coils.

公开(公告)号：US09866073B2

公开(公告)日：2018-01-09

申请号：US15306575

申请日：2015-06-15

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Neil Francis Joye ,  Andries Van Wageningen ,  Simon George Abernethy ,  Klaas Jacob Lulofs

IPC: H02J50/12 ,  H04B5/00

CPC classification number: H02J50/12 ,  H02J7/025 ,  H02J50/10 ,  H02J50/60 ,  H02J50/80 ,  H02J50/90 ,  H04B5/0037 ,  H04B5/0075 ,  H04B5/0087

Abstract: A wireless power transfer system includes a power transmitter (201) arranged to provide a power transfer to a power receiver (205) via a power transfer signal. The power receiver (205) comprises a first mode controller (709) for transmitting a standby mode exit request to the power transmitter (201) by changing a loading of a communication inductor (209) of the power transmitter (201). The power transmitter (201) comprises a mode controller (405) which controls the power transmitter (201) to operate in a standby mode wherein a presence of the power receiver (205) is detected but no power transfer signal is generated. It furthermore comprises a detector (403) for detecting an impedance change of the communication inductor (209). The mode controller (405) is arranged to initiate a transition from the standby mode to a power transfer mode in response to the detector (403) detecting the impedance change.