发明授权
- 专利标题: Method and system for a signal driver using capacitive feedback
- 专利标题(中): 使用电容反馈的信号驱动器的方法和系统
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申请号: US12294982申请日: 2007-03-31
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公开(公告)号: US07859314B2公开(公告)日: 2010-12-28
- 发明人: Joseph Rutkowski , Alma Anderson
- 申请人: Joseph Rutkowski , Alma Anderson
- 申请人地址: NL Eindhoven
- 专利权人: NXP B.V.
- 当前专利权人: NXP B.V.
- 当前专利权人地址: NL Eindhoven
- 国际申请: PCT/IB2007/051162 WO 20070331
- 国际公布: WO2007/113765 WO 20071011
- 主分类号: H03B1/00
- IPC分类号: H03B1/00
摘要:
Edge-rate control circuits and methods are implemented using a variety of arrangements and methods. Using one such method, an output signal of a bus is controlled by decoupling a feedback capacitor (116) from a gate of a transistor (108) using an isolation switch (106). The transistor (108) is used to control the output signal. A predetermined amount of charge is removed from the feedback capacitor (116) using a charge distribution capacitor (114) that is selectively coupled to the feedback capacitor (116) using a switch (112). The switch (112) is enabled in response to the output signal reaching an output voltage and disabled in response to the charge distribution capacitor (114) reaching a reference voltage.
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