公开(公告)号：US11641134B2

公开(公告)日：2023-05-02

申请号：US16604481

申请日：2018-03-19

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Sivabalan Mohan ,  Somakumar Ramachandrapanicker ,  Arun Kumar Raghunathan ,  Rajendra Naik ,  Adnan Kutubuddin Bohori

IPC: H02J50/90 ,  H02J50/12 ,  G01V3/10 ,  H02J7/02

Abstract: A wireless charging device includes a power source configured to generate a direct current (DC) voltage signal. Also, the wireless charging device includes a driver unit configured to receive the DC voltage signal and convert the DC voltage signal to a first alternating current (AC) voltage signal. Further, the wireless charging device includes a transmitting unit including a resonant capacitor and a resonant coil, coupled to the driver unit, wherein the transmitting unit is configured to receive and transmit the first AC voltage signal. Additionally, the wireless charging device includes a control unit configured to detect a receiver device based on a change in at least one of a capacitive voltage across the resonant capacitor and an inductive voltage across the resonant coil if the receiver device is positioned within a predetermined distance from the transmitting unit.

公开(公告)号：US20230268775A1

公开(公告)日：2023-08-24

申请号：US18307296

申请日：2023-04-26

Applicant: General Electric Company

Inventor： Sivabalan Mohan ,  Somakumar Ramachandrapanicker ,  Arun Kumar Raghunathan ,  Rajendra Naik ,  Adnan Kutubuddin Bohori

IPC: H02J50/12 ,  H02J50/90 ,  G01V3/10

CPC classification number: H02J50/12 ,  G01V3/10 ,  H02J50/90

Abstract: A wireless charging device includes a power source configured to generate a direct current (DC) voltage signal. Also, the wireless charging device includes a driver unit configured to receive the DC voltage signal and convert the DC voltage signal to a first alternating current (AC) voltage signal. Further, the wireless charging device includes a transmitting unit including a resonant capacitor and a resonant coil, coupled to the driver unit, wherein the transmitting unit is configured to receive and transmit the first AC voltage signal. Additionally, the wireless charging device includes a control unit configured to detect a receiver device based on a change in at least one of a capacitive voltage across the resonant capacitor and an inductive voltage across the resonant coil if the receiver device is positioned within a predetermined distance from the transmitting unit.

公开(公告)号：US20220393519A1

公开(公告)日：2022-12-08

申请号：US17820058

申请日：2022-08-16

Applicant: General Electric Company

Inventor： Sivabalan Mohan ,  Rajendra Naik ,  Arun Kumar Raghunathan ,  Somakumar Ramachandrapanicker

IPC: H02J50/90 ,  H02J50/10 ,  H02J7/02 ,  H02J50/40

Abstract: A wireless charging device is disclosed. The wireless charging device includes a transmitter detection coil configured to receive a first alternating current (AC) voltage signal having a characteristic associated with a receiver device. Also, the wireless charging device includes a control unit coupled to the transmitter detection coil and configured to detect the receiver device based on the characteristic of the first AC voltage signal. Further, the wireless charging device includes a driver unit coupled to the control unit and configured to convert a direct current (DC) voltage signal of an input power to a second AC voltage signal if the receiver device is detected. In addition, the wireless charging device includes a power transmission coil configured to wirelessly transmit the second AC voltage signal to the receiver device.

公开(公告)号：US11431198B2

公开(公告)日：2022-08-30

申请号：US16619428

申请日：2018-04-30

Applicant: General Electric Company

Inventor： Sivabalan Mohan ,  Rejendra Naik ,  Arun Kumar Raghunathan ,  Somakumar Ramachandrapanicker

IPC: H02J50/10 ,  H02J50/40 ,  H02J7/02

Abstract: A wireless charging device (102) is disclosed. The wireless charging device (102) includes a transmitter detection coil (130) configured to receive a first alternating current (AC) voltage signal having a characteristic associated with a receiver device (104). Also, the wireless charging device (102) includes a control unit (112) coupled to the transmitter detection coil (130) and configured to detect the receiver device (104) based on the characteristic of the first AC voltage signal. Further, the wireless charging device (102) includes a driver unit (108) coupled to the control unit (112) and configured to convert a direct current (DC) voltage signal of an input power to a second AC voltage signal if the receiver device (104) is detected. In addition, the wireless charging device (102) includes a power transmission coil (116) configured to wirelessly transmit the second AC voltage signal to the receiver device (104).