公开(公告)号：US09866036B2

公开(公告)日：2018-01-09

申请号：US14780355

申请日：2014-03-26

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Noriaki Asaoka ,  Osamu Ohashi ,  Tsuyoshi Nishio ,  Masayoshi Koizumi

IPC: H02J5/00 ,  H02J17/00 ,  H02J7/02 ,  B60L11/18 ,  H01F38/14

CPC classification number: B60L11/182 ,  B60L11/1829 ,  B60L11/1833 ,  B60L11/1838 ,  B60L11/1846 ,  H01F38/14 ,  H02J5/005 ,  H02J7/025 ,  H02J17/00 ,  H02J50/10 ,  H02J50/12 ,  H02J50/70 ,  H02J50/80 ,  H02J50/90 ,  Y02T10/7005 ,  Y02T10/7072 ,  Y02T90/121 ,  Y02T90/122 ,  Y02T90/125 ,  Y02T90/128 ,  Y02T90/14 ,  Y02T90/163 ,  Y02T90/169 ,  Y04S30/14

Abstract: The electricity supply device (100) supplies electricity using electromagnetic force and opposes an external electricity reception coil (153a). An electricity supply coil (102a) has a hollow section (102b), and has a spiral shape. A reader (103) has an antenna disposed in the projected space resulting from projecting the hollow section (102b) in the central axial direction of the electricity supply coil (102a) and at a position more separated from the electricity reception coil (153a) than the opposing surface that opposes the electricity reception coil (153a) and is of the electricity supply coil (102a), and ID data transmitted by an RF tag (154) installed proximally to the electricity reception coil (153a) is received and detected by the antenna. An electricity-supply-side control unit (104) determines the presence/absence of an electricity reception coil (153a) on the basis of the ID data detected by the reader (103).

公开(公告)号：US09815380B2

公开(公告)日：2017-11-14

申请号：US14779115

申请日：2014-03-24

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Masayoshi Koizumi ,  Osamu Ohashi ,  Tsuyoshi Nishio ,  Noriaki Asaoka

IPC: H02J7/00 ,  B60L11/18 ,  H02J7/02 ,  H01M10/42 ,  H02J5/00 ,  H02J50/10 ,  H02J50/80

CPC classification number: B60L11/182 ,  B60L11/1835 ,  B60L2270/147 ,  H01M10/42 ,  H01M2250/20 ,  H02J5/005 ,  H02J7/025 ,  H02J50/05 ,  H02J50/10 ,  H02J50/12 ,  H02J50/80 ,  Y02T10/7005 ,  Y02T10/7072 ,  Y02T90/12 ,  Y02T90/121 ,  Y02T90/122 ,  Y02T90/125 ,  Y02T90/14 ,  Y02T90/32

Abstract: Power supply device is provided with the following: a power supply unit (121) that includes a spiral coil or a solenoid coil; a frequency characteristic acquisition unit (211) that acquires the frequency characteristics of the efficiency of the supply of power from the power supply unit to the power receiving device; a peak determining unit (212) that determines peaks in the frequency characteristics of the efficiency of power supply; and a drive frequency determination unit (213) that, if two peaks have been found, determines as the drive frequency used for supplying power a frequency near the frequency that is the lower of the frequencies of the two peaks, with the lower frequency being given priority over a frequency near the higher frequency.