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公开(公告)号：US08638135B2
公开(公告)日：2014-01-28
申请号：US13272542
申请日：2011-10-13
IPC分类号： H03L7/00
CPC分类号： H03K19/00315
摘要： An integrated circuit includes first and second transistors, a switch, and a power-on reset (POR) circuit. The first transistor has a first current electrode, a second current electrode, and a control electrode. The second transistor has a first current electrode coupled to the second current electrode of the first transistor, a second current electrode, and a control electrode. The switch is for coupling the first and second transistors to receive a power supply voltage in response to an asserted bias control signal. The POR circuit has a latch-up detection circuit coupled to receive the power supply voltage and to a control terminal of the switch. The latch-up detection circuit is for detecting a low voltage condition of the power supply voltage, and in response, deasserting the bias control signal to decouple the first and second transistors from the power supply voltage.
摘要翻译： 集成电路包括第一和第二晶体管，开关和上电复位（POR）电路。 第一晶体管具有第一电流电极，第二电流电极和控制电极。 第二晶体管具有耦合到第一晶体管的第二电流电极的第一电流电极，第二电流电极和控制电极。 该开关用于耦合第一和第二晶体管以响应于断言的偏置控制信号接收电源电压。 POR电路具有闭锁检测电路，其耦合以接收电源电压和开关的控制端。 闩锁检测电路用于检测电源电压的低电压状态，并且作为响应，使偏置控制信号解除分压，以将第一和第二晶体管与电源电压分离。
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公开(公告)号：US09703303B2
公开(公告)日：2017-07-11
申请号：US14261829
申请日：2014-04-25
摘要： A voltage regulation system includes a voltage regulator configured to output a control signal indicating whether a voltage based on output of the voltage regulator is lower than a specified value. A charge pump is configured to output a voltage and a charging current. A pump monitor is configured to receive the control signal and the output voltage of the charge pump, and activate the charge pump when the control signal indicates the voltage based on output of the voltage regulator is lower than a specified value and the output voltage of the charge pump is lower than a threshold value.
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公开(公告)号：US09909934B2
公开(公告)日：2018-03-06
申请号：US14194105
申请日：2014-02-28
申请人： Jose A. Camarena , Khoi B. Mai , Dale J. McQuirk
发明人： Jose A. Camarena , Khoi B. Mai , Dale J. McQuirk
CPC分类号： G01K15/005 , G01K3/005 , G01K7/01
摘要： A determination is made if a temperature of a system has exceeded a hot threshold or a cold threshold. At room temperature, a first adjustment is determined for first nominal settings. The first nominal settings are for a first input to a first comparator. At room temperature, a second adjustment is determined for second nominal settings. The second nominal settings are for a first input to a second comparator. The temperature is monitored, during normal operation of the system, using a temperature dependent voltage with the first comparator adjusted with the first adjustment and second comparator adjusted with the second adjustment.
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公开(公告)号：US20110316610A1
公开(公告)日：2011-12-29
申请号：US12824991
申请日：2010-06-28
IPC分类号： H03K17/687 , H03K17/00
CPC分类号： H03K17/102
摘要： A transmission gate circuit includes a first transmission gate, having a first switching device, coupled in series with a second transmission gate, having a second switching device, and control circuitry which places the first transmission gate and the second transmission gate into a conductive state to provide a conductive path through the first transmission gate and the second transmission gate. When the voltage of the first terminal is above a first voltage level and outside a safe operating voltage area of at least one of the first and second switching device, the first switching device remains within its safe operating voltage area and the second switching device remains within its safe operating voltage area.
摘要翻译： 传输门电路包括具有第一开关装置的第一传输门，第一开关装置与第二传输门串联，具有第二开关装置，以及控制电路，其将第一传输门和第二传输门置于导通状态 提供穿过第一传输门和第二传输门的导电路径。 当第一端子的电压高于第一电压电平并且在第一和第二开关装置中的至少一个的安全工作电压区域之外时，第一开关装置保持在其安全工作电压区域内，并且第二开关装置保持在 其安全工作电压面积。
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公开(公告)号：US08228109B2
公开(公告)日：2012-07-24
申请号：US12824991
申请日：2010-06-28
IPC分类号： H03K5/08
CPC分类号： H03K17/102
摘要： A transmission gate circuit includes a first transmission gate, having a first switching device, coupled in series with a second transmission gate, having a second switching device, and control circuitry which places the first transmission gate and the second transmission gate into a conductive state to provide a conductive path through the first transmission gate and the second transmission gate. When the voltage of the first terminal is above a first voltage level and outside a safe operating voltage area of at least one of the first and second switching device, the first switching device remains within its safe operating voltage area and the second switching device remains within its safe operating voltage area.
摘要翻译： 传输门电路包括具有第一开关装置的第一传输门，第一开关装置与第二传输门串联，具有第二开关装置，以及控制电路，其将第一传输门和第二传输门置于导通状态 提供穿过第一传输门和第二传输门的导电路径。 当第一端子的电压高于第一电压电平并且在第一和第二开关装置中的至少一个的安全工作电压区域之外时，第一开关装置保持在其安全工作电压区域内，并且第二开关装置保持在 其安全工作电压面积。
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公开(公告)号：US06327126B1
公开(公告)日：2001-12-04
申请号：US09494055
申请日：2000-01-28
申请人： James W. Miller , Michael G. Khazhinsky , Geoffrey B. Hall , Jose A. Camarena , Joseph Chan , Fujio Takeda
发明人： James W. Miller , Michael G. Khazhinsky , Geoffrey B. Hall , Jose A. Camarena , Joseph Chan , Fujio Takeda
IPC分类号： H02H900
CPC分类号： H01L27/0251
摘要： A circuit (600) provides Electrostatic Discharge (ESD) protection for internal elements in an integrated circuit during an ESD event. The circuit (600) includes cascoded NMOSFETs (614, 616), with the upper NMOSFET (614) connected to voltage divider circuitry (628). The voltage divider circuitry (628) provides a first bias voltage to the gate of the upper NMOSFET (614) during an ESD event and a second bias voltage during normal operation. Preferably, the first bias voltage is approximately ½ of the drain voltage of the upper NMOSFET (614). Under these bias conditions the cascoded NMOSFETs exhibit a maximum voltage threshold for initiation of parasitic lateral bipolar conduction.
摘要翻译： 电路（600）在ESD事件期间为集成电路中的内部元件提供静电放电（ESD）保护。 电路（600）包括级联的NMOSFET（614,616），其中上部NMOSFET（614）连接到分压器电路（628）。 分压器电路（628）在ESD事件期间向上NMOSFET（614）的栅极提供第一偏置电压，并在正常操作期间提供第二偏置电压。 优选地，第一偏置电压约为上部NMOSFET（614）的漏极电压的1/2。 在这些偏置条件下，级联的NMOSFET表现出用于启动寄生横向双极传导的最大电压阈值。
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