发明授权
- 专利标题: Output circuit
- 专利标题(中): 输出电路
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申请号: US13330031申请日: 2011-12-19
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公开(公告)号: US08957652B2公开(公告)日: 2015-02-17
- 发明人: Takashi Yamauchi
- 申请人: Takashi Yamauchi
- 申请人地址: JP Kanagawa
- 专利权人: Renesas Electronics Corporation
- 当前专利权人: Renesas Electronics Corporation
- 当前专利权人地址: JP Kanagawa
- 代理机构: Foley & Lardner LLP
- 优先权: JP2010-286091 20101222
- 主分类号: H02M3/156
- IPC分类号: H02M3/156 ; H03K17/082
摘要:
There is provided an output circuit for supplying an output current to a load coupled to an output terminal in response to an input signal. The output circuit includes an output transistor for supplying the output current to the output terminal, an output-drive circuit for driving the output transistor, a constant-current limiting circuit for generating a current control signal for limiting the output current to a predetermined current value, and a control circuit for implementing a control such that the output current is controlled on the basis of the current control signal if a voltage at the output terminal is at a predetermined voltage, or less after the input signal is supplied while the output transistor is driven by the output-drive circuit if the voltage at the output terminal is in excess of the predetermined voltage.
公开/授权文献
- US20120161737A1 OUTPUT CIRCUIT 公开/授权日:2012-06-28
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