发明申请
US20070045418A1 Inductive coupling reader comprising means for extracting a power supply voltage
有权
感应耦合读取器，包括用于提取电源电压的装置
- 专利标题： Inductive coupling reader comprising means for extracting a power supply voltage
- 专利标题（中）： 感应耦合读取器，包括用于提取电源电压的装置
-
申请号： US11302291申请日： 2005-12-13
-
公开(公告)号： US20070045418A1公开(公告)日： 2007-03-01
- 发明人: Bruno Charrat , Michael Martin , Olivier Carron
- 申请人： Bruno Charrat , Michael Martin , Olivier Carron
- 专利权人： Inside Contactless
- 当前专利权人： Inside Contactless
- 优先权： FR0508694 20050823
- 主分类号： G06K7/08
- IPC分类号： G06K7/08
摘要：
The present invention relates to a method for supplying a power supply voltage (Vccr) to a contactless integrated circuit reader (RD1) that is in a passive operating mode, in the presence of an external alternating magnetic field (FLD2), the reader comprising an antenna circuit (ACT) substantially tuned to a working frequency (F0). According to the present invention, the method comprises the steps of taking off in the antenna circuit (ACT) an alternating voltage (Vcd) induced in the antenna circuit by the external magnetic field (FLD2), and rectifying the induced voltage to supply an auxiliary supply voltage (Vccr).
公开/授权文献
信息查询
