发明申请
- 专利标题: CURRENT PULSE RECEIVING CIRCUIT
- 专利标题(中): 电流脉冲接收电路
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申请号: US09922764申请日: 2001-08-07
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公开(公告)号: US20020101270A1公开(公告)日: 2002-08-01
- 发明人: Kazunori Nishizono , Tatsuo Kumano
- 申请人: FUJITSU LIMITED
- 申请人地址: null
- 专利权人: FUJITSU LIMITED
- 当前专利权人: FUJITSU LIMITED
- 当前专利权人地址: null
- 优先权: JP2001-21224 20010130
- 主分类号: H03K003/037
- IPC分类号: H03K003/037
摘要:
A current pulse receiving circuit suitable for converting a current pulse converted by a photodetector from a light pulse received in optical communications and outputting a logic level voltage pulse with an accurate pulse width is disclosed. When an output signal from a current-to-voltage converter circuit is detected to have a large amplitude by a large signal detection circuit, an amount of offset cancellation of a DC cancellation circuit is decreased to limit the amplitude of the output signal from the current-to-voltage converter circuit. Since the amplitude of an input signal of an amplifier circuit is limited, tail characteristics at a trailing edge of a pulse are small and an output is provided at an output terminal with an accurate pulse width.
公开/授权文献
- US06456141B1 Current pulse receiving circuit 公开/授权日:2002-09-24
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