公开(公告)号：US08818297B2

公开(公告)日：2014-08-26

申请号：US14028417

申请日：2013-09-16

Applicant: NXP B.V.

Inventor： Erich Merlin

IPC: H04B1/38 ,  H04B5/00

CPC classification number: H04B5/0025 ,  G06K19/07749 ,  H04B5/0031 ,  H04B5/0037 ,  H04B5/0056 ,  H04B5/0062 ,  H04B5/0075

Abstract: An NFC device for contactless communication comprises transmitter means being adapted to generate an electromagnetic carrier signal and to modulate the carrier signal according to transmitting data, and an antenna having an inductor, which antenna is connected to and driven by the transmitter means with the modulated carrier signal. AC coupling capacitors are coupled to the inductor of the antenna, wherein the AC coupling capacitors are further connected to inputs of switches. The outputs of these switches can be switched between ground potential and inputs of rectifier means. The outputs of the rectifying means are fed to power supply rails of the NFC device.

Abstract translation: 一种用于非接触通信的NFC装置包括适于产生电磁载波信号并根据发射数据调制载波信号的发射机装置，以及具有电感器的天线，该天线与发射机装置连接并由调制载波 信号。 AC耦合电容器耦合到天线的电感器，其中AC耦合电容器进一步连接到开关的输入端。 这些开关的输出可以在接地电位和整流装置的输入之间切换。 整流装置的输出被馈送到NFC装置的电源轨。

公开(公告)号：US20140018017A1

公开(公告)日：2014-01-16

申请号：US14028417

申请日：2013-09-16

Applicant: NXP B.V.

Inventor： Erich Merlin

IPC: H04B5/00

CPC classification number: H04B5/0025 ,  G06K19/07749 ,  H04B5/0031 ,  H04B5/0037 ,  H04B5/0056 ,  H04B5/0062 ,  H04B5/0075

Abstract: An NFC device for contactless communication comprises transmitter means being adapted to generate an electromagnetic carrier signal and to modulate the carrier signal according to transmitting data, and an antenna having an inductor, which antenna is connected to and driven by the transmitter means with the modulated carrier signal. AC coupling capacitors are coupled to the inductor of the antenna, wherein the AC coupling capacitors are further connected to inputs of switches. The outputs of these switches can be switched between ground potential and inputs of rectifier means. The outputs of the rectifying means are fed to power supply rails of the NFC device.

Abstract translation: 一种用于非接触通信的NFC装置包括适于产生电磁载波信号并根据发射数据调制载波信号的发射机装置，以及具有电感器的天线，该天线与发射机装置连接并由调制载波 信号。 AC耦合电容器耦合到天线的电感器，其中AC耦合电容器进一步连接到开关的输入端。 这些开关的输出可以在接地电位和整流装置的输入之间切换。 整流装置的输出被馈送到NFC装置的电源轨。