公开(公告)号：US20170288474A1

公开(公告)日：2017-10-05

申请号：US15629974

申请日：2017-06-22

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： TSUTOMU SAKATA ,  HIROSHI KANNO ,  EIJI TAKAHASHI ,  SATORU KIKUCHI

IPC: H02J50/80 ,  H02J50/12

CPC classification number: H02J50/80 ,  H02J50/12 ,  H02J50/40 ,  H02J50/50 ,  H04B5/02

Abstract: A relay apparatus in a wireless power transmission system includes a relay power reception antenna that receives power transmission alternating current power from a power transmission power transmission antenna, a relay rectifier that converts the power transmission alternating current power into relay direct current power, a relay inverter circuit that converts the relay direct current power into relay alternating current power, and a relay power transmission antenna that wirelessly transmits the relay alternating current power. When the relay apparatus has received binary relay received data, the relay apparatus reverses a sign of the binary relay received data and eliminates a difference between a first voltage of the relay direct current power and a second voltage of the relay direct current power on the basis of the reversed binary relay received data.

公开(公告)号：US20170098965A1

公开(公告)日：2017-04-06

申请号：US15271047

申请日：2016-09-20

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： SATORU KIKUCHI ,  TSUTOMU SAKATA ,  EIJI TAKAHASHI ,  HIROSHI KANNO

IPC: H02J50/12

CPC classification number: H02J50/12 ,  B25J19/0045 ,  H02J50/10 ,  H02J50/50 ,  H02J50/80

Abstract: A wireless power transmission system includes a power transmission apparatus, a power reception apparatus, a load driving apparatus, and a power control apparatus. The power control apparatus includes a direct current power supply, a main control circuit, and a communicator. Each time an operation load to be achieved by the load driving apparatus changes, the main control circuit updates a load instruction value for the load driving apparatus and a control parameter for adjusting a voltage of first alternating current power, the control parameter being used by the power transmission apparatus to convert first direct current power into the first alternating current power. The power transmission apparatus includes an inverter circuit and a power transmission control circuit that determines the voltage of the first alternating current power on the basis of the control parameter updated by the power control apparatus and that controls the inverter circuit.

公开(公告)号：US20170098964A1

公开(公告)日：2017-04-06

申请号：US15266381

申请日：2016-09-15

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： TSUTOMU SAKATA ,  EIJI TAKAHASHI ,  SATORU KIKUCHI ,  HIROSHI KANNO

IPC: H02J50/12 ,  H02J50/80 ,  H02J50/40

CPC classification number: H02J50/12 ,  H02J50/10 ,  H02J50/40 ,  H02J50/50 ,  H02J50/80

Abstract: A wireless power transmission system includes: a power transmitting device; a power receiving device; and a relay device. In a state where the relay side switch circuit has the relay side rectifier and the relay side load in a non-contact state, and the receiving side switch circuit has the receiving side rectifier and the receiving side load in a non-contact state, power is transmitted from the power transmitting device to the power receiving device via the relay device. After a DC voltage output from the receiving side rectifier reaching a requested voltage of the power receiving device, the receiving side switch circuit connects the receiving side rectifier to the receiving side load at a timing T2 that is different from a timing T1 at which the relay side switch circuit connects the relay side rectifier to the relay side load.

公开(公告)号：US20170098963A1

公开(公告)日：2017-04-06

申请号：US15259238

申请日：2016-09-08

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： EIJI TAKAHASHI ,  TSUTOMU SAKATA ,  SATORU KIKUCHI ,  HIROSHI KANNO

IPC: H02J50/12 ,  H02J7/02 ,  H02M7/537

CPC classification number: H02J50/12 ,  B60L1/00 ,  B60L11/182 ,  B60L2210/30 ,  B60L2210/40 ,  H02J7/025 ,  H02J50/10 ,  H02J50/20 ,  H02J50/80 ,  H02M7/537 ,  Y02T10/7005 ,  Y02T10/7072 ,  Y02T10/7241 ,  Y02T90/122 ,  Y02T90/127 ,  Y02T90/14

Abstract: A power receiving device includes a power receiving antenna that receives AC power from a power transmitting antenna, a rectifier circuit that converts the AC power into DC power, a detection circuit that detects the DC power, a load driven by the DC power, a battery that charges the DC power, a switching circuit that provides i) connection and disconnection between the rectifier circuit and the load and ii) connection and disconnection between the load and the battery, and a control circuit that controls the power receiving device. The control circuit controls the switching circuit to disconnect the rectifier circuit from the load and connect the load to the battery if the DC power is less than or equal to a power threshold value, and drive the load by the DC power charged in the battery.

公开(公告)号：US20170040843A1

公开(公告)日：2017-02-09

申请号：US15199408

申请日：2016-06-30

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： KENICHI ASANUMA ,  TSUTOMU SAKATA ,  ATSUSHI YAMAMOTO ,  HIROSHI KANNO

IPC: H02J50/12 ,  H02J7/04 ,  H02J50/60 ,  H02J7/02

CPC classification number: H02J50/12 ,  H02J7/025 ,  H02J7/027 ,  H02J7/045 ,  H02J50/60 ,  H02J50/80

Abstract: A power transmitting device determines transmitting power P(t1) at a beginning of a first unit time, and transmitting power P(t2) at an end of the first unit time, stores a control parameter Q(t3) that determines a voltage of the transmitting power at a beginning of a second unit time, and a control parameter Q(t4) that determines a voltage of the transmitting power at an end of the second unit time, determines a power difference ΔP=P(t2)−P(t1) and a difference ΔQ=Q(t4)−Q(t3) in the control parameter Q, and, if the ΔP is equal to or larger than a first threshold and an absolute value of the ΔQ is equal to or larger than a second threshold, determines that there is a foreign object between a receiver resonator and a transmitter resonator and decreases the transmitting power output from an inverter circuit.

Abstract translation: 电力发送装置在第一单位时间开始时决定发送功率P（t1），并且在第一单位时间结束时发送功率P（t2），存储决定电源的控制参数Q（t3） 在第二单位时间开始时发送功率，以及决定第二单位时间结束时的发送功率的电压的控制参数Q（t4），决定功率差ΔP= P（t2）-P（t1 ）和控制参数Q中的差ΔQ= Q（t4）-Q（t3），并且如果ΔP等于或大于第一阈值，并且ΔQ的绝对值等于或大于第二阈值 确定在接收机谐振器和发射机谐振器之间存在异物并且减小从逆变器电路输出的发射功率。

公开(公告)号：US20150349543A1

公开(公告)日：2015-12-03

申请号：US14719324

申请日：2015-05-22

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： TSUTOMU SAKATA ,  HIROSHI YAMAMOTO ,  HIROSHI KANNO ,  KENICHI ASANUMA

IPC: H02J5/00

CPC classification number: H02J5/005 ,  H02J7/025 ,  H02J50/12 ,  H02J50/60 ,  H02J50/70

Abstract: A power transmission device includes an inverter, an oscillator, a foreign substance detector, and a power transmission control circuitry. The power transmission control circuitry causes the foreign substance detector to perform a series of multiple processes and determine whether a foreign substance is present before a transmission of first AC power starts, and then causes the inverter to start the transmission of the first AC power. After the transmission starts, a detection period in which foreign substance detecting is performed and a power transmission period in which transmission of the first AC power is performed are repeated. The series of multiple processes is divided and performed in the multiple repeated detecting periods. The foreign substance detector is caused to divide and perform the series of multiple processes using the detecting periods and determine whether a foreign substance is present.

Abstract translation: 电力传输装置包括逆变器，振荡器，异物检测器和电力传输控制电路。 电力传输控制电路使异物检测器执行一系列多个处理，并且在第一交流电源的传输开始之前确定是否存在异物，然后使逆变器开始传输第一交流电力。 在传输开始之后，重复执行异物检测的检测周期和执行第一AC电力的传输的电力传输周期。 在多个重复检测周期中分割并执行多个处理系列。 使用异物检测器使用检测周期分割并执行一系列多个过程，并确定是否存在异物。

公开(公告)号：US20150349542A1

公开(公告)日：2015-12-03

申请号：US14712775

申请日：2015-05-14

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： HIROSHI YAMAMOTO ,  KENICHI ASANUMA ,  TSUTOMU SAKATA ,  HIROSHI KANNO

IPC: H02J5/00 ,  H02J17/00

CPC classification number: H02J50/12 ,  G01V3/10 ,  H02J5/005 ,  H02J7/025 ,  H02J17/00 ,  H02J50/40 ,  H02J50/60 ,  H02J50/70

Abstract: A power transmission device includes an inverter using a frequency f11 lower than a frequency f0 between a first resonator and a second resonator or a frequency f12 higher than the frequency f0 to generate a first power; an oscillator using a frequency f10 lower than a frequency fr between the first resonator and a third resonator or a frequency f20 higher than the frequency fr to generate a second power; and a power transmission control circuitry setting a foreign object detection period between first and second transmission periods, using the frequency f11 or frequency f12 in the first transmission period, using the frequency f10 or frequency f20 in the foreign object detection period, and if it is determined that a substance is present in the foreign object detection period, transmitting power in the second transmission period at a frequency different from the frequency used in the first transmission period.

Abstract translation: 电力传输装置包括使用低于第一谐振器和第二谐振器之间的频率f0的频率f11或比频率f0高的频率f12以产生第一功率的反相器; 使用低于第一谐振器和第三谐振器之间的频率fr的频率f10或比频率fr高的频率f20的振荡器以产生第二功率; 以及电力传输控制电路，使用第一发送周期中的频率f11或频率f12，在异物检测期间中使用频率f10或频率f20，在第一和第二发送期间之间设定异物检测期间，如果是 确定在异物检测期间存在物质，在第二发送期间以与第一发送期间所使用的频率不同的频率发送功率。