公开(公告)号：US20200153283A1

公开(公告)日：2020-05-14

申请号：US16616914

申请日：2018-04-19

Applicant: General Electric Company

Inventor： Viswanathan KANAKASABAI ,  Suma Memana Narayana BHAT ,  Arun Kumar RAGHUNATHAN ,  Rahul BHUJADE ,  Satishbabu BHOGINENI ,  Somakumar RAMACHANDRAPANICKER

IPC: H02J50/12 ,  H02J7/02 ,  H02J50/60 ,  H02J50/90 ,  H02J50/40

Abstract: A wireless charging device (102) includes a driver unit (110) configured to generate one of a first AC voltage signal having a first frequency and a second AC voltage signal having a second frequency. Also, the wireless charging device (102) includes a transmitting unit (114) having a first coil (130) and a first capacitor (132) and configured to transmit the first AC voltage signal. Further, the transmitting unit (114) includes a second coil (134) and a second capacitor (136) and configured to transmit the second AC voltage signal. Additionally, the wireless charging device (102) includes a control unit (112) configured to detect a first receiver device (104) operating at the first frequency based on a change in a first voltage in the transmitting unit (114), and detect a second receiver device (106) operating at the second frequency based on a change in a second voltage in the transmitting unit (114).

公开(公告)号：US20200274390A1

公开(公告)日：2020-08-27

申请号：US16604593

申请日：2018-03-16

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Suma Memana Narayana BHAT ,  Somakumar RAMACHANDRAPANICKER ,  Arun Kumar RAGHUNATHAN ,  Viswanathan KANAKASABAI ,  Deepak ARAVIND

IPC: H02J50/10 ,  H02J50/40 ,  H02J3/02

Abstract: A wireless power transceiver (WPT) device (102) is disclosed. The WPT device (102) includes an energy module (110) and a magnetic interfacing unit (114) comprising a transceiver coil (128). Further, the WPT device (102) includes a controller (116) configured to generate one of a first control signal and a second control signal based on at least one first parameter of the energy module (110) and at least one second parameter of one of a plurality of external devices (104). Also, the WPT device (102) includes a bi-directional driver (112) configured to transmit at least one of a first AC signal and a second AC signal through the transceiver coil (128) if the first control signal is received from the controller (116), and receive at least one of the first AC signal and the second AC signal if the second control signal is received from the controller (116).

公开(公告)号：US20200099256A1

公开(公告)日：2020-03-26

申请号：US16469531

申请日：2017-10-30

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Viswanathan KANAKASABAI ,  Arun Kumar RAGHUNATHAN ,  Satishbabu BHOGINENI

IPC: H02J50/12 ,  H02J7/02 ,  H02J5/00 ,  H02J50/90

Abstract: A calibration device includes a controller configured to communicate a plurality of input voltage signals having different determined frequencies to a first power exchange coil. Also, the calibration device includes a load unit coupled to a second power exchange coil, where the load unit includes at least a first electrical load and a second electrical load. Further, the calibration device includes a voltage sensor configured to measure a plurality of first output voltage signals across the first electrical load and a plurality of second output voltage signals across the second electrical load, and where the controller is configured to determine an optimal operating frequency of a wireless power transfer system based on the plurality of input voltage signals, the plurality of first output voltage signals, and the plurality of second output voltage signals.

公开(公告)号：US20190326769A1

公开(公告)日：2019-10-24

申请号：US16469525

申请日：2017-10-28

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Viswanathan KANAKASABAI ,  Somakumar RAMACHANDRAPANICKER ,  Arun Kumar RAGHUNATHAN

IPC: H02J7/02 ,  H02J50/40 ,  H02J50/12

Abstract: A charging pad (104) includes a power drive unit (110) and a transmitting unit (112). The power drive unit (110) includes a first oscillator (114) to generate a first AC voltage signal having a first frequency, and a first amplifier (118) to amplify the first AC voltage signal. Also, the power drive unit (110) includes a second oscillator (116) to generate a second AC voltage signal having a second frequency, and a second amplifier (120) to amplify the second AC voltage signal. Additionally, the power drive unit (110) includes an adder (122) to combine the amplified first AC voltage signal and the amplified second AC voltage signal. Furthermore, the transmitting unit (112) includes a first frequency coil (150) configured to transmit the amplified first AC voltage signal having the first frequency, and a second frequency coil (152) configured to transmit the amplified second AC voltage signal having the second frequency.

公开(公告)号：US20200244174A1

公开(公告)日：2020-07-30

申请号：US16616395

申请日：2018-04-19

Applicant: General Electric Company

Inventor： Viswanathan KANAKASABAI ,  Satishbabu BHOGINENI ,  Rahul BHUJADE ,  Arun RAGHUNATHAN ,  Suma Memana Narayana BHAT ,  Somakumar RAMACHANDRAPANICKER

IPC: H02M3/335 ,  H02J50/10 ,  H02J50/40 ,  H04B5/00 ,  H01F38/14

Abstract: A power transfer device (102) is disclosed. The power transfer device (102) includes a driver unit (108). The driver unit (108) includes a plurality of converters (112, 114, 116, 117) including a plurality of legs (118, 120, 122, 124, 125) coupled to each other, where at least one leg of each of the plurality of converters (112, 114, 116, 117) is common to another power converter of the plurality of converters (112, 114, 116, 117), and where each of the plurality of converters (112, 114, 116, 117) includes an output terminal (204, 206, 208, 210, 304, 406, 408). Further, the driver unit (108) includes at least one transmitter coil (110a, 110b, 110c, 110d), where the at least one transmitter coil (110a, 110b, 110c, 110d) is coupled to the corresponding output terminal (204, 206, 208, 210, 304, 406, 408).

公开(公告)号：US20200176990A1

公开(公告)日：2020-06-04

申请号：US16616409

申请日：2018-05-21

Applicant: General Electric Company

Inventor： Suma Memana Narayana BHAT ,  Viswanathan KANAKASABAI ,  Arun Kumar RAGHUNATHAN ,  Rahul BHUJADE ,  Satishbabu BHOGINENI ,  Somakumar RAMACHANDRAPANICKER

IPC: H02J3/34 ,  H02J50/12 ,  H02J5/00 ,  H02J50/90 ,  H02J50/70 ,  H02J50/40

Abstract: A transmitting assembly (114, 214, 334) configured to transmit electric power in a universal wireless charging device (102, 200, 302) is presented. The transmitting assembly (114, 214, 334) includes a first coil (116, 216, 316) embedded in a printed circuit board (220) and configured to transmit a first AC voltage signal having a first frequency. Also, the transmitting assembly (114, 214, 334) includes a second coil (118, 218, 318) disposed on the printed circuit board (220) and configured to transmit a second AC voltage signal having a second frequency, wherein the second frequency is different from the first frequency, and wherein the first AC voltage signal having the first frequency and the second AC voltage signal having the second frequency are used to wirelessly charge a plurality of receiver devices (104, 106) having different frequency standards.