NFC reader with auto tuner
First Claim
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1. A near field communication (NFC) reader, comprising:
- an NFC controller;
an antenna;
a filter coupled to the NFC controller;
a tuner coupled to the antenna; and
a dynamic power control unit coupled between the filter and the tuner, wherein the dynamic power control unit includes a voltage controlled capacitor and a direct current (DC) part extraction circuit coupled to the voltage controlled capacitor.
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Abstract
A near field communication (NFC) reader is disclosed. The NFC reader includes a NFC controller, an antenna, a filter coupled to the NFC controller, a tuner coupled to the antenna and a dynamic power control unit coupled between the filter and the tuner. The dynamic power control unit includes a voltage controlled capacitor and a direct current (DC) part extraction circuit coupled to the voltage controlled capacitor.
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Citations
8 Claims
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1. A near field communication (NFC) reader, comprising:
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an NFC controller; an antenna; a filter coupled to the NFC controller; a tuner coupled to the antenna; and a dynamic power control unit coupled between the filter and the tuner, wherein the dynamic power control unit includes a voltage controlled capacitor and a direct current (DC) part extraction circuit coupled to the voltage controlled capacitor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification