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METHOD FOR LIMITING THE LEVEL OF VOLTAGE FROM A MAGNETIC FIELD RECEIVED BY A TRANSPONDER AND CORRESPONDING TRANSPONDER
METHOD FOR LIMITING THE LEVEL OF VOLTAGE FROM A MAGNETIC FIELD RECEIVED BY A TRANSPONDER AND CORRESPONDING TRANSPONDER
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机译:用于限制由应答器和相应的应答器接收的磁场的电压水平的方法
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摘要
A method for limiting voltage at an input of an integrated circuit of a transponder contactlessly communicating with a reader includes, during the contactless communication: receiving a carrier signal at an antenna of the transponder; and controlling gate voltages of two transistors of a rectifier circuit of the transponder so as to modify an input impedance of the integrated circuit, wherein the two transistors are cross-coupled between terminals of the antenna and a reference voltage.
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