公开(公告)号：US20160079951A1

公开(公告)日：2016-03-17

申请号：US14784395

申请日：2014-04-09

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Hideo OOSUMI ,  Hiroshi KANNO ,  Tsutomu SAKATA

IPC: H03H7/38 ,  H01F38/14 ,  H02J5/00

CPC classification number: H03H7/38 ,  H01F38/14 ,  H02J5/005 ,  H02J50/12

Abstract: A power transmitter apparatus of a wireless power transmitter apparatus transmits electric power from the power transmitter apparatus to a power reception apparatus by electromagnetically coupling a power transmitter apparatus resonance coil with a power reception apparatus resonance coil. The power transmitter apparatus includes a control signal detector portion that generates a control signal based on a voltage change of a voltage across both terminals of the power transmitter apparatus resonance coil and transmits the control signal; and a switching circuit that resonates the power transmitter apparatus resonance coil on the basis of the control signal.

Abstract translation: 无线功率发送装置的电力发送装置通过电力发送装置的共振线圈与受电装置的共振线圈电磁耦合，将电力从电力发送装置发送到受电装置。 电力发送装置包括：控制信号检测部，根据电力发送装置共鸣线圈的两端的电压的电压变化生成控制信号，发送控制信号; 以及基于控制信号使电力发送装置谐振线圈共振的开关电路。

公开(公告)号：US20170338694A1

公开(公告)日：2017-11-23

申请号：US15670371

申请日：2017-08-07

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Hideo OOSUMI ,  Hiroshi KANNO ,  Hiroshi YAMAMOTO ,  Tsutomu SAKATA

IPC: H02J50/10 ,  H02J50/80

CPC classification number: H02J50/10 ,  H02J7/025 ,  H02J50/12 ,  H02J50/60 ,  H02J50/80 ,  H02J50/90

Abstract: A control method for a power transmitting device is provided, the power transmitting device including a power transmitting antenna, which transmits AC power wirelessly to the power receiving antenna of a power receiving device, and an oscillator. The method includes supplying pulse signals that control first and second switching element groups to the oscillator, and changing a phase shift amount between a first pulse signal and a second pulse signal. The method also includes causing the oscillator to change the voltage of the AC power output and to set an initial value of the phase shift amount. The method further includes causing the oscillator to output preliminary AC power of a voltage to reduce the phase shift amount from the initial value, fixing the phase shift amount, and causing the oscillator to output the AC power while maintaining the voltage corresponding to the fixed phase shift amount.