Apparatus and method for improving ESD and transient immunity in shunt regulators
    1.
    发明授权
    Apparatus and method for improving ESD and transient immunity in shunt regulators 有权
    用于改善分流调节器中ESD和瞬态抗扰度的装置和方法

    公开(公告)号:US06775112B1

    公开(公告)日:2004-08-10

    申请号:US09849707

    申请日:2001-05-04

    IPC分类号: H02H322

    CPC分类号: G05F1/613

    摘要: Voltage regulators are exposed to extreme amounts of voltage over short periods of time during an electrostatic discharge (ESD) event. Shunt regulators require protection from ESD events. Capacitors are passive devices that allow current flow when not in a steady-state condition. An apparatus and method compensates for the extreme voltages inherent in ESD events. By providing capacitance across the gate-drain junction of the shunt device in combination with a gate resistor, a voltage can be applied to the gate of the active device upon commencement of an ESD event, and cause the active device to “turn on” The “turned on” active device provides a pathway for the excess voltage from the ESD event to follow and discharge so as to avoid catastrophic failures.

    摘要翻译: 在静电放电(ESD)事件期间,电压调节器在短时间内暴露于极端电压。 并联稳压器需要ESD事件的保护。 电容器是无源器件,当不处于稳态条件时允许电流流动。 一种装置和方法补偿ESD事件中固有的极端电压。 通过在分流装置的栅极 - 漏极结上与栅极电阻组合提供电容,在ESD事件开始时可以向有源器件的栅极施加电压,并使有源器件“导通”。 “开启”有源器件为ESD事件中的过电压提供了一条路径,用于跟踪和放电,以避免灾难性故障。

    Apparatus and method for initiating crowbar protection in a shunt regulator
    2.
    发明授权
    Apparatus and method for initiating crowbar protection in a shunt regulator 有权
    在分流调节器中启动撬棒保护的装置和方法

    公开(公告)号:US06631066B1

    公开(公告)日:2003-10-07

    申请号:US09848748

    申请日:2001-05-03

    IPC分类号: H02H504

    CPC分类号: G05F1/613

    摘要: A method and apparatus provide for improved crowbar protection in a shunt regulator circuit including a shunt device. An over-temperature protection circuit may be combined with a fast-crowbar protection circuit such that maximum protection from damaging thermal energy is provided to a shunt device. The fast-crowbar protection circuit estimates the thermal energy in the shunt device based upon an integration method. By integrating a measured power over time the rise in temperature can be estimated such that the crowbar protection is enabled before the thermal energy can damage the shunt device. The integration method can be approximated using a piece-wise linear approximation such that the estimation circuitry can be simplified. A series of comparators and timing/delay circuits are employed to measure a current level in the shunt device over a given duration. The timing/delay circuits have memory such that heat build up and heat dissipation are modeled.

    摘要翻译: 一种方法和装置在包括分流装置的分流调节器电路中提供改进的撬棒保护。 过温保护电路可以与快速撬棒保护电路组合,使得对分流装置提供最大限度的防止损坏热能的保护。 快速撬棒保护电路基于积分方法估计分流装置中的热能。 通过集成测量的功率随着时间的推移,可以估计温度上升,使得在热能损坏分流装置之前能够启用撬棒保护。 积分方法可以使用分段线性近似近似,使得可以简化估计电路。 使用一系列比较器和定时/延迟电路来在给定的持续时间内测量分流装置中的电流电平。 定时/延迟电路具有建立热量积累和散热的存储器。

    Radiation shield support system and method
    3.
    发明授权
    Radiation shield support system and method 有权
    辐射屏蔽支持系统及方法

    公开(公告)号:US08833724B2

    公开(公告)日:2014-09-16

    申请号:US13269440

    申请日:2011-10-07

    IPC分类号: G21F3/00 F16P1/02

    CPC分类号: F16P1/02 Y10T29/49826

    摘要: Disclosed herein is new and improved system and method for supporting radiation shields. The system may include a first frame subassembly, a second frame assembly, and a quick disconnect. The first frame sub assembly may include an upper partial ring support, a lower partial ring support, and a plurality of vertical supports. The second frame sub assembly may include an upper partial ring support, a lower partial ring support, and a plurality of vertical supports. The second frame subassembly may have a ring hole. The quick disconnect may include a plug and a bolt. The plug may be permanently affixed to the first frame subassembly, and the bolt may be configured to pass through the ring hole and the plug hole in order to removably secure the first frame subassembly to the second frame subassembly.

    摘要翻译: 本文公开了用于支持辐射屏蔽的新的和改进的系统和方法。 该系统可以包括第一框架子组件,第二框架组件和快速断开。 第一框架子组件可以包括上部部分环支撑件,下部部分环支撑件和多个垂直支撑件。 第二框架子组件可以包括上部部分环支撑件,下部部分环支撑件和多个垂直支撑件。 第二框架子组件可以具有环形孔。 快速断开可能包括插头和螺栓。 插头可以永久地固定到第一框架子组件,并且螺栓可以被配置成穿过环形孔和插塞孔,以便将第一框架子组件可移除地固定到第二框架子组件。

    System and method for providing an adjunct device in a content delivery network
    4.
    发明授权
    System and method for providing an adjunct device in a content delivery network 有权
    在内容传送网络中提供辅助设备的系统和方法

    公开(公告)号:US08745122B2

    公开(公告)日:2014-06-03

    申请号:US13159977

    申请日:2011-06-14

    IPC分类号: G06F15/16

    摘要: A cache server receives content and an instruction indicating an event associated with the content that causes a processor to invoke a call out to an adjunct device. The instruction further indicates an operation that the adjunct device is to perform. The cache server detects the event associated with the content, halts a flow of the content in response to detecting the event associated with the content, passes via the call out the content to the adjunct device to perform the operation, receives from the adjunct device a response and resulting data from the operation, and performs an additional operation on the resulting data based on the response from the adjunct device.

    摘要翻译: 高速缓存服务器接收内容和指示与内容相关联的事件的指令,使得处理器向辅助设备调用呼叫。 该指示进一步指示辅助设备要执行的操作。 高速缓存服务器检测与内容相关联的事件,响应于检测到与内容有关的事件而停止内容的流程,经由呼叫将该内容传递到辅助设备以执行该操作,从辅助设备接收a 来自操作的响应和结果数据,并且基于来自辅助设备的响应对所得到的数据执行附加操作。

    Method and system for providing thermostatic temperature control in an integrated circuit
    6.
    发明授权
    Method and system for providing thermostatic temperature control in an integrated circuit 有权
    在集成电路中提供恒温控制的方法和系统

    公开(公告)号:US07586064B1

    公开(公告)日:2009-09-08

    申请号:US11486890

    申请日:2006-07-13

    申请人: Gregory J. Smith

    发明人: Gregory J. Smith

    IPC分类号: H05B1/02

    CPC分类号: H05B1/0233 Y10T307/773

    摘要: A method for providing thermostatic temperature control in an integrated circuit is provided that includes internally heating the integrated circuit until the integrated circuit reaches an elevated temperature and holding the integrated circuit at the elevated temperature. For a particular embodiment, a temperature-dependent parameter of a temperature-sensitive block is tested while the integrated circuit is held at the elevated temperature.

    摘要翻译: 提供了一种在集成电路中提供恒温控制的方法,其包括内部加热集成电路,直到集成电路达到升高的温度并将集成电路保持在升高的温度。 对于特定实施例,在集成电路保持在升高的温度下测试温度敏感块的温度相关参数。

    Switch mode power supply control circuit
    7.
    发明授权
    Switch mode power supply control circuit 有权
    开关电源控制电路

    公开(公告)号:US07268526B1

    公开(公告)日:2007-09-11

    申请号:US10828944

    申请日:2004-04-21

    申请人: Gregory J. Smith

    发明人: Gregory J. Smith

    IPC分类号: G05F1/56 G05F1/62

    CPC分类号: H02M3/156

    摘要: An apparatus and method is arranged to dynamically adjust a pulse width (e.g., off-time pulse) associated with a switching device in a converter such as a buck converter, a boost converter, or a buck-boost regulator. A one-shot circuit is configured to dynamically initiate a pulse cycle for the switching converter when the output voltage collapses to a level that is related to a monitored inductor current in the converter. By changing the start time associated with the one-shot circuit, the pulse-width (e.g., off-time pulse) associated with the switching device is varied. In one example, the one-shot circuit is triggered when the inductor current is sensed as decaying below a threshold. The one-shot circuit can be further arranged to have another pulse-width (e.g., on-time pulse) that is adjusted for phase alignment with a reference frequency using a PLL circuit.

    摘要翻译: 一种装置和方法被布置成动态地调节与诸如降压转换器,升压转换器或降压 - 升压调节器的转换器中的开关装置相关联的脉冲宽度(例如,关断时间脉冲)。 单触发电路被配置为当输出电压崩溃到与转换器中所监视的电感器电流相关的电平时,动态地启动开关转换器的脉冲周期。 通过改变与单触发电路相关联的开始时间,改变与开关装置相关联的脉冲宽度(例如关断时间脉冲)。 在一个示例中,当感应电感电流衰减到低于阈值时,单触发电路被触发。 单触发电路还可以被布置为具有另一个脉冲宽度(例如,导通时间脉冲),该脉冲宽度(例如导通时间脉冲)使用PLL电路被调整为与参考频率的相位对准。

    Battery charging safety circuit for simultaneous startup and rapid surge current clamping
    8.
    发明授权
    Battery charging safety circuit for simultaneous startup and rapid surge current clamping 有权
    电池充电安全电路,用于同时启动和快速浪涌电流钳位

    公开(公告)号:US06958591B1

    公开(公告)日:2005-10-25

    申请号:US10155374

    申请日:2002-05-22

    申请人: Gregory J. Smith

    发明人: Gregory J. Smith

    IPC分类号: H02J7/00 H02J7/04 H02J7/06

    摘要: A safety circuit monitors a charging signal supplied by a charging circuit for charging a battery. Damage to the battery may occur when the voltage at the input terminal of the battery rises above the safe level for the battery. A voltage drop across a coupling circuit is used to generate an activation signal. The activation signal causes a power amplifier to lower the voltage of the charging signal before the charging signal can drive the inductances associated with the battery input terminal and leads to the point where damage to the battery may occur.

    摘要翻译: 安全电路监视由用于对电池充电的充电电路提供的充电信号。 当电池输入端子的电压上升到电池安全水平以上时,可能会损坏电池。 使用耦合电路两端的电压降来产生激活信号。 激活信号使得功率放大器在充电信号可以驱动与电池输入端子相关联的电感之前降低充电信号的电压并且导致可能发生电池损坏的点。

    Method and apparatus for a thermal wake-up circuit
    9.
    发明授权
    Method and apparatus for a thermal wake-up circuit 有权
    热唤醒电路的方法和装置

    公开(公告)号:US06702457B1

    公开(公告)日:2004-03-09

    申请号:US10027510

    申请日:2001-12-20

    申请人: Gregory J. Smith

    发明人: Gregory J. Smith

    IPC分类号: G01K1300

    CPC分类号: G01K3/005 G01K2215/00

    摘要: An apparatus and method is directed to a thermal wake-up circuit and a thermal sensor that are utilized by another circuit. The thermal wake-up circuit monitors a temperature associated with the other circuit. The thermal sensor is activated by the thermal wake-up circuit when the temperature exceeds a first threshold level. The thermal sensor is deactivated by the thermal wake-up circuit when the temperature is below the first threshold level. In one embodiment, addition thermal sensors may be activated and deactivated by the thermal wake-up circuit. The thermal sensor and additional thermal sensors may be used to activate protection circuitry or to shut down the other circuit. Power consumption by the thermal sensor is minimized by maintaining the thermal sensor inactive until activated by the thermal wake-up circuit.

    摘要翻译: 一种装置和方法涉及由另一电路利用的热唤醒电路和热传感器。 热唤醒电路监测与其他电路相关的温度。 当温度超过第一阈值水平时,热传感器由热唤醒电路激活。 当温度低于第一阈值水平时,热敏传感器被热唤醒电路禁用。 在一个实施例中,加热传感器可以被热唤醒电路激活和去激活。 热传感器和其他热传感器可用于激活保护电路或关闭其他电路。 通过将热传感器保持在无功状态,通过热唤醒电路激活,热传感器的功耗最小化。

    Charging circuit for deeply discharged cells
    10.
    发明授权
    Charging circuit for deeply discharged cells 有权
    深度放电电池的充电电路

    公开(公告)号:US06686723B1

    公开(公告)日:2004-02-03

    申请号:US10007554

    申请日:2001-11-08

    IPC分类号: H02J700

    CPC分类号: H02J7/0052 H02J7/0075

    摘要: The invention is directed towards a charging circuit for charging a cell that may be deeply discharged. A primary charging circuit charges the cell when the cell is not deeply discharged. A deeply discharged charging circuit charges the cell when the cell is deeply discharged. Determining when the cell is deeply discharged includes determining when the voltage of the cell is above, below, or equal to a predetermined threshold. According to one embodiment of the invention, the predetermined threshold is 2V. When the cell voltage is below a predetermined threshold voltage, which according to one embodiment is 0.5V, a low-voltage charging path is used to charge the cell.

    摘要翻译: 本发明涉及用于对可能被深度排出的电池进行充电的充电电路。 当电池未被深度放电时,初级充电电路对电池充电。 当电池深度放电时,深度放电的充电电路对电池充电。 确定电池何时深度放电包括确定电池的电压何时高于,低于或等于预定阈值。 根据本发明的一个实施例,预定阈值为2V。 当电池电压低于根据一个实施例的0.5V的预定阈值电压时,使用低电压充电路径对电池充电。