Invention Grant
- Patent Title: Antenna driver circuit for NFC reader applications
- Patent Title (中): 适用于NFC读卡器应用的天线驱动电路
-
Application No.: US13249043Application Date: 2011-09-29
-
Publication No.: US08929808B2Publication Date: 2015-01-06
- Inventor: Bojko Marholev , Aminghasem Safarian
- Applicant: Bojko Marholev , Aminghasem Safarian
- Applicant Address: US CA Irvine
- Assignee: Broadcom Corporation
- Current Assignee: Broadcom Corporation
- Current Assignee Address: US CA Irvine
- Agency: Sterne, Kessler, Goldstein & Fox P.L.L.C.
- Main IPC: H04B5/00
- IPC: H04B5/00 ; H03F3/45 ; H03F3/24
Abstract:
A power amplifier, supplied by a supply voltage, to drive an antenna to output a magnetic field, comprising a differential stage configured to output an output signal to drive the antenna, and a feedback stage configured to receive a common mode output voltage from the differential stage and to output a feedback voltage to regulate the output common mode signal to be proportional to the supply.
Public/Granted literature
- US20130084799A1 Antenna Driver Circuit for NFC Reader Applications Public/Granted day:2013-04-04
Information query
