Invention Grant
US08401470B2 Transmitter with adjustable transmit level for magnetic link 有权
用于磁链路的可调发射电平的发射器

  • Patent Title: Transmitter with adjustable transmit level for magnetic link
  • Patent Title (中): 用于磁链路的可调发射电平的发射器
  • Application No.: US12665736
    Application Date: 2008-05-08
  • Publication No.: US08401470B2
    Publication Date: 2013-03-19
  • Inventor: Dave KroekenstoelHarry Neuteboom
  • Applicant: Dave KroekenstoelHarry Neuteboom
  • Applicant Address: NL Eindhoven
  • Assignee: NXP B.V.
  • Current Assignee: NXP B.V.
  • Current Assignee Address: NL Eindhoven
  • Agency: Kramer & Amado P.C.
  • Priority: EP07111130 20070627
  • International Application: PCT/IB2008/051811 WO 20080508
  • International Announcement: WO2009/001234 WO 20081231
  • Main IPC: H04B5/00
  • IPC: H04B5/00 H04B1/02
Transmitter with adjustable transmit level for magnetic link
Abstract:
A device, e.g., a hearing aid, has an electronic circuit for wireless communication of a digital signal. The circuit has a driver driving an RLC tank. The driver has a plurality of inverters whose outputs are coupled to a node of the coil via a respective one of multiple capacitors in the tank. The circuit has a controller that selectively drives one or more of the inverters with the digital signal and connects the inputs of the other inverters to a supply voltage or ground. The tank has a further plurality of series arrangements of a further capacitor and a high-voltage switch connected between the node and ground. The controller is configured for controlling the high-voltage switches.
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