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公开(公告)号:US20120032703A1
公开(公告)日:2012-02-09
申请号:US13201848
申请日:2010-02-16
申请人: Denis Crespo , Yves Dufour , Herve Marie
发明人: Denis Crespo , Yves Dufour , Herve Marie
IPC分类号: H03K19/00
摘要: A shrinking-pulse digital delay line (400) has a cascade of a plurality of stages (102,104) for modifying a width of a pulse propagating down the cascade (106 to 118). Each specific one of the stages has an input (106,116), an output (108,118) and a main path (110,112,120,122) between the input and the output. The main path has a first inverter (110,120) and a second inverter (112,122) connected in series via an intermediate node (114,124). Each specific stage has a third inverter (128,140) connected between the input and the intermediate node of a downstream stage in the cascade (102,104); and also has a fourth inverter (132,144) connected between the intermediate node of the specific stage (mode 114, stage 102, mode 124, stage 104) and the output (118, stage 104) of the downstream stage (stage 104).
摘要翻译: 收缩脉冲数字延迟线(400)具有级联的多级(102,104),用于修改沿级联(106至118)传播的脉冲的宽度。 每个特定的一个级在输入和输出之间具有输入(106,116),输出(108,118)和主路径(110,112,120,122)。 主路径具有通过中间节点(114,124)串联连接的第一反相器(110,120)和第二反相器(112,122)。 每个特定级具有连接在级联(102,104)中的下游级的输入和中间节点之间的第三反相器(128,140)。 并且还具有连接在特定级(模式114,级102,模式124,级104)的中间节点与下游级(级104)的输出(118,级104)之间的第四反相器(132,144)。
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公开(公告)号:US08804289B2
公开(公告)日:2014-08-12
申请号:US12682746
申请日:2008-10-13
申请人: Denis Crespo , Herve Marie , Nguyen Trieu Luan Le , Mickael Lucas
发明人: Denis Crespo , Herve Marie , Nguyen Trieu Luan Le , Mickael Lucas
IPC分类号: H02H9/04
CPC分类号: H01L27/0266 , H01L27/0259 , H02H9/046
摘要: A protection circuit (100, 700) is disclosed for protecting an integrated circuit having a first supply rail (Vcc) and a second supply rail (Vss) from exposure to an excessive voltage. The protection circuit (100, 700) comprises a sensor (120) for sensing a voltage increase on the first supply rail (Vcc). Such a sensor may be implemented as an RC element. The sensor (120) has an output coupled to a signal path for providing a detection signal on said path. The sensor (120) triggers a clamping circuit (180) to clamp the first supply rail (Vcc) to the second supply rail (Vss) in response to the detection signal, which typically signals an ESD event on the supply rails. A pre-amplifying stage (160) is coupled between the sensor (120) and the clamping circuit (180) to amplify the detection signal for the clamping circuit (180). The protection circuit further comprises a hold circuit (140) for holding the control input of the pre-amplifying stage (160) in an enabled state upon termination of the detection signal. Such a hold circuit may comprise a further RC element for accelerating the activation of the clamping circuit (180) and extending the activation of the clamping circuit beyond the termination of the detection signal, thus yielding a more efficient protection circuit (100, 700).
摘要翻译: 公开了一种用于保护具有第一电源轨(Vcc)和第二电源轨(Vss)的集成电路不被暴露于过电压的保护电路(100,700)。 保护电路(100,700)包括用于感测第一电源轨(Vcc)上的电压增加的传感器(120)。 这样的传感器可以被实现为RC元件。 传感器(120)具有耦合到信号路径的输出,用于在所述路径上提供检测信号。 响应于检测信号,传感器(120)触发钳位电路(180)将第一电源轨(Vcc)钳位到第二电源轨(Vss),该检测信号通常表示电源轨上的ESD事件。 预放大级(160)耦合在传感器(120)和钳位电路(180)之间,以放大钳位电路(180)的检测信号。 保护电路还包括保持电路(140),用于在检测信号终止时将预放大级(160)的控制输入保持在使能状态。 这种保持电路可以包括用于加速钳位电路(180)的激活并且将钳位电路的激活延伸超过检测信号的终止的另外的RC元件,从而产生更有效的保护电路(100,700)。
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公开(公告)号:US20100214706A1
公开(公告)日:2010-08-26
申请号:US12682746
申请日:2008-10-13
申请人: Denis Crespo , Herve Marie , Nguyen Trieu Luan Le , Mickael Lucas
发明人: Denis Crespo , Herve Marie , Nguyen Trieu Luan Le , Mickael Lucas
IPC分类号: H02H9/04
CPC分类号: H01L27/0266 , H01L27/0259 , H02H9/046
摘要: A protection circuit (100, 700) is disclosed for protecting an integrated circuit having a first supply rail (Vcc) and a second supply rail (Vss) from exposure to an excessive voltage. The protection circuit (100, 700) comprises a sensor (120) for sensing a voltage increase on the first supply rail (Vcc). Such a sensor may be implemented as an RC element. The sensor (120) has an output coupled to a signal path for providing a detection signal on said path. The sensor (120) triggers a clamping circuit (180) to clamp the first supply rail (Vcc) to the second supply rail (Vss) in response to the detection signal, which typically signals an ESD event on the supply rails. A pre-amplifying stage (160) is coupled between the sensor (120) and the clamping circuit (180) to amplify the detection signal for the clamping circuit (180). The protection circuit further comprises a hold circuit (140) for holding the control input of the pre-amplifying stage (160) in an enabled state upon termination of the detection signal. Such a hold circuit may comprise a further RC element for accelerating the activation of the clamping circuit (180) and extending the activation of the clamping circuit beyond the termination of the detection signal, thus yielding a more efficient protection circuit (100, 700).
摘要翻译: 公开了一种用于保护具有第一电源轨(Vcc)和第二电源轨(Vss)的集成电路不被暴露于过电压的保护电路(100,700)。 保护电路(100,700)包括用于感测第一电源轨(Vcc)上的电压增加的传感器(120)。 这样的传感器可以被实现为RC元件。 传感器(120)具有耦合到信号路径的输出,用于在所述路径上提供检测信号。 响应于检测信号,传感器(120)触发钳位电路(180)将第一电源轨(Vcc)钳位到第二电源轨(Vss),该检测信号通常表示电源轨上的ESD事件。 预放大级(160)耦合在传感器(120)和钳位电路(180)之间,以放大钳位电路(180)的检测信号。 保护电路还包括保持电路(140),用于在检测信号终止时将预放大级(160)的控制输入保持在使能状态。 这种保持电路可以包括用于加速钳位电路(180)的激活并且将钳位电路的激活延伸超过检测信号的终止的另外的RC元件,从而产生更有效的保护电路(100,700)。
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