发明申请
US20110204947A1 METHOD AND APPARATUS FOR ADAPTIVELY MODIFYING A PULSE WIDTH OF A PULSE WIDTH MODULATED OUTPUT 有权
用于自适应调制脉冲宽度调制输出的脉冲宽度的方法和装置

  • 专利标题: METHOD AND APPARATUS FOR ADAPTIVELY MODIFYING A PULSE WIDTH OF A PULSE WIDTH MODULATED OUTPUT
  • 专利标题(中): 用于自适应调制脉冲宽度调制输出的脉冲宽度的方法和装置
  • 申请号: US12858181
    申请日: 2010-08-17
  • 公开(公告)号: US20110204947A1
    公开(公告)日: 2011-08-25
  • 发明人: Weihong QiuChun CheungEmil Chen
  • 申请人: Weihong QiuChun CheungEmil Chen
  • 申请人地址: US CA Milpitas
  • 专利权人: INTERSIL AMERICAS INC.
  • 当前专利权人: INTERSIL AMERICAS INC.
  • 当前专利权人地址: US CA Milpitas
  • 主分类号: H03K5/04
  • IPC分类号: H03K5/04
METHOD AND APPARATUS FOR ADAPTIVELY MODIFYING A PULSE WIDTH OF A PULSE WIDTH MODULATED OUTPUT
摘要:
Systems, methods, and apparatus for improving steady state operation of a pulse width modulator during transient and soft start events are described herein. An apparatus can include a phase component configured to adaptively modify a pulse width of a first pulse width modulated (PWM) output signal based on a pulse width of a PWM input signal. Further, the apparatus can include a power stage component configured to source at least one of a voltage or a current to a load based on the first PWM output signal. In one example, the phase component can be configured to linearly extend the pulse width of the first PWM output signal based on the pulse width of the PWM input signal. In another example, the phase component can be configured to adaptively modify the pulse width of the first PWM output signal based on a predetermined maximum pulse width.
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