公开(公告)号：US20150270723A1

公开(公告)日：2015-09-24

申请号：US14731776

申请日：2015-06-05

Applicant: Semiconductor Energy Laboratory Co., LTD.

Inventor： Koichiro KAMATA ,  Misako SATO ,  Shuhei MAEDA

IPC: H02J5/00 ,  H02J17/00

CPC classification number: H02J5/005 ,  H01F38/00 ,  H02J5/00 ,  H02J17/00 ,  H02J50/12 ,  H02J50/40 ,  H02J50/90

Abstract: A wireless power feed system with high transfer efficiency of electric power is disclosed. The wireless power feed system includes a power feeding device and a power receiving device, wherein the power feeding device includes a first electromagnetic coupling coil that is connected to an AC power source via a directional coupler; a first resonant coil; a switch connected to the opposite ends of the first resonant coil; a control circuit which conducts switching on/off of the switch based on a parameter of an amplitude of a reflective wave detected by the directional coupler; and an analog-digital converter provided between the first electromagnetic coupling coil and the control circuit; and the power receiving device includes a second resonant coil; and a second electromagnetic coupling coil, and wherein the first electromagnetic coupling coil is provided between the first resonant coil and the second resonant coil.

Abstract translation: 公开了一种具有高电力传输效率的无线馈电系统。 无线馈电系统包括馈电装置和电力接收装置，其中馈电装置包括经由定向耦合器连接到AC电源的第一电磁耦合线圈; 第一谐振线圈; 连接到所述第一谐振线圈的相对端的开关; 控制电路，其基于由所述定向耦合器检测到的反射波的振幅的参数来进行所述开关的接通/断开; 以及设置在所述第一电磁耦合线圈和所述控制电路之间的模拟数字转换器; 并且所述受电装置包括第二谐振线圈; 和第二电磁耦合线圈，并且其中所述第一电磁耦合线圈设置在所述第一谐振线圈和所述第二谐振线圈之间。

公开(公告)号：US20130335056A1

公开(公告)日：2013-12-19

申请号：US13908121

申请日：2013-06-03

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Hiroki INOUE ,  Kiyoshi KATO ,  Shuhei NAGATSUKA ,  Koichiro KAMATA ,  Tsutomu MURAKAWA ,  Takahiro TSUJI ,  Kaori IKADA

IPC: G05F3/16

CPC classification number: G05F3/16 ,  G05F1/56 ,  G05F3/242

Abstract: One object of the present invention is to provide a regulator circuit with an improved noise margin. In a regulator circuit including a bias circuit generating a reference voltage on the basis of the potential difference between a first power supply terminal and a second power supply terminal, and a voltage regulator outputting a potential to an output terminal on the basis of a reference potential input from the bias circuit, a bypass capacitor is provided between a power supply terminal and a node to which a gate of a transistor included in the bias circuit is connected.

Abstract translation: 本发明的一个目的是提供一种具有改善的噪声容限的调节器电路。 在包括基于第一电源端子和第二电源端子之间的电位差产生参考电压的偏置电路的调节器电路中，以及基于参考电位向输出端子输出电位的电压调节器 在偏置电路的输入端，在电源端子与偏置电路中包含的晶体管的栅极连接的节点之间设置有旁路电容器。