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Chopper-stabilized instrumentation amplifier for impedance measurement

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • H03F-001/02
  • H03F-003/387
  • A61B-005/00
  • A61B-005/04
  • A61B-005/0428
  • A61B-005/053
  • A61N-001/37
  • H03F-001/26
  • H03F-003/45
  • A61B-005/103
  • A61N-001/365
  • A61N-001/08
출원번호 US-0579276 (2009-10-14)
등록번호 US-9197173 (2015-11-24)
발명자 / 주소
  • Denison, Timothy J.
  • Santa, Wesley A.
출원인 / 주소
  • Medtronic, Inc.
대리인 / 주소
    Shumaker & Sieffert, P.A.
인용정보 피인용 횟수 : 1  인용 특허 : 83

초록

This disclosure describes a chopper stabilized instrumentation amplifier. The amplifier is configured to achieve stable measurements at low frequency with very low power consumption. The instrumentation amplifier uses a differential architecture and a mixer amplifier to substantially eliminate noise

대표청구항

1. A medical device comprising: a current source configured to generate a modulated current at a modulation frequency for application to a load to produce an input signal, wherein the current source comprises a voltage source and a switch that modulates a current produced by the voltage source to pr

이 특허에 인용된 특허 (83)

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이 특허를 인용한 특허 (1)

  1. Hoffberg, Steven M., Steerable rotating projectile.
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