发明授权
US09438183B2 Amplifier device and method for activating an amplifier device or the amplifier unit 有权
用于激活放大器装置或放大器单元的放大器装置和方法

  • 专利标题: Amplifier device and method for activating an amplifier device or the amplifier unit
  • 专利标题(中): 用于激活放大器装置或放大器单元的放大器装置和方法
  • 申请号: US14371885
    申请日: 2013-01-14
  • 公开(公告)号: US09438183B2
    公开(公告)日: 2016-09-06
  • 发明人: Fabian Hoffmeister
  • 申请人: Robert Bosch GmbH
  • 申请人地址: DE Stuttgart
  • 专利权人: Robert Bosch GmbH
  • 当前专利权人: Robert Bosch GmbH
  • 当前专利权人地址: DE Stuttgart
  • 代理机构: Michael Best & Friedrich LLP
  • 优先权: DE102012200524 20120116
  • 国际申请: PCT/EP2013/050559 WO 20130114
  • 国际公布: WO2013/107708 WO 20130725
  • 主分类号: H03F1/14
  • IPC分类号: H03F1/14 H03F3/185 H03F1/30 H03F3/217
Amplifier device and method for activating an amplifier device or the amplifier unit
摘要:
Known types of amplifiers include so-called class D amplifiers, which first use a pulse-width modulator to convert an analog signal into a pulse-width modulated switching signal, which is then amplified and subsequently converted back into a continuously variable voltage via a filter. This type of amplifier is particularly energy-efficient and is therefore preferably used for high-power amplifiers. The invention relates to an amplifier device 1 comprising a control device (5), wherein the control device (5) has an input interface for an audio signal (2), and comprising an amplifier unit (9) for amplifying the audio signal (2, 8) downstream of the control device (5), wherein the control device (5) has a delay module (6) that is designed to transmit the audio signal (2), delayed by a delay value delta_t, to the amplifier unit (9) and to automatically and/or autonomously reduce the delay value delta_t from a starting value delta_t to a final value during an adaptation phase AP.
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