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1. 发明申请

US20100043531A1 RELATING TO DIAGNOSTICS OF A CAPACITIVE SENSOR 有权
标题翻译：与电容式传感器的诊断相关
公开(公告)号：US20100043531A1
公开(公告)日：2010-02-25
申请号：US12594229
申请日：2007-04-06
申请人： Mike Garrard , Ray Marshall , Stefano Pietri
发明人： Mike Garrard , Ray Marshall , Stefano Pietri
IPC分类号： G01L23/22
CPC分类号： G01L23/225 , G01L27/007
摘要： A detector circuit for detecting the presence of a remote capacitive sensor having at least two terminals connected via a protection circuit that includes one or more capacitors, the detector circuit comprising: a current supply for changing the charge on the sensor and the protection circuit, a detector for measuring the voltage on one or more of the terminals; wherein the presence of the sensor is determined by changing the charge on the capacitive sensor and the one or more capacitors of the protection circuit in a predetermined manner such that the voltage measurement on the one or more terminals when the sensor is present is significantly different than when the sensor is absent.
摘要翻译：一种用于检测具有通过包括一个或多个电容器的保护电路连接的至少两个端子的远程电容传感器的存在的检测器电路，所述检测器电路包括：用于改变传感器和保护电路上的电荷的电流源，用于测量一个或多个端子上的电压的检测器; 其中通过以预定的方式改变电容传感器和保护电路的一个或多个电容器的电荷来确定传感器的存在，使得当存在传感器时在一个或多个端子上的电压测量显着不同于当传感器不存在时。

2. 发明授权

US08629682B2 Relating to diagnostics of a capacitive sensor 有权
标题翻译：关于电容传感器的诊断
公开(公告)号：US08629682B2
公开(公告)日：2014-01-14
申请号：US12594229
申请日：2007-04-06
申请人： Mike Garrard , Ray Marshall , Stefano Pietri
发明人： Mike Garrard , Ray Marshall , Stefano Pietri
IPC分类号： G01R27/26
CPC分类号： G01L23/225 , G01L27/007
摘要： A detector circuit for detecting the presence of a remote capacitive sensor having at least two terminals connected via a protection circuit that includes one or more capacitors, the detector circuit comprising: a current supply for changing the charge on the sensor and the protection circuit, a detector for measuring the voltage on one or more of the terminals; wherein the presence of the sensor is determined by changing the charge on the capacitive sensor and the one or more capacitors of the protection circuit in a predetermined manner such that the voltage measurement on the one or more terminals when the sensor is present is significantly different than when the sensor is absent.
摘要翻译：一种用于检测具有通过包括一个或多个电容器的保护电路连接的至少两个端子的远程电容传感器的存在的检测器电路，所述检测器电路包括：用于改变传感器和保护电路上的电荷的电流源，用于测量一个或多个端子上的电压的检测器; 其中通过以预定的方式改变电容传感器和保护电路的一个或多个电容器的电荷来确定传感器的存在，使得当存在传感器时在一个或多个端子上的电压测量显着不同于当传感器不存在时。

3. 发明授权

US09041367B2 Voltage regulator with current limiter 有权
标题翻译：带限流器的电压调节器
公开(公告)号：US09041367B2
公开(公告)日：2015-05-26
申请号：US13828213
申请日：2013-03-14
申请人： Chris C. Dao , Stefano Pietri , Juxiang Ren
发明人： Chris C. Dao , Stefano Pietri , Juxiang Ren
IPC分类号： G05F1/00 , G05F1/573 , G05F1/575
CPC分类号： G05F1/573 , G05F1/575
摘要： A voltage regulator includes an amplifier having a first input coupled to a first reference voltage and a second input coupled to a voltage feedback signal; a multiplexer having a first input coupled to an output of the amplifier, a second input coupled to a voltage clamp signal, and a control input; and a control circuit having a first input coupled to an over current indicator, a second input coupled to a no over voltage indicator, a third input coupled to a timer signal, and an output coupled to the control input of the multiplexer.
摘要翻译：电压调节器包括具有耦合到第一参考电压的第一输入和耦合到电压反馈信号的第二输入的放大器; 多路复用器，其具有耦合到放大器的输出的第一输入，耦合到电压钳位信号的第二输入和控制输入; 以及控制电路，其具有耦合到过电流指示器的第一输入，耦合到无过电压指示器的第二输入，耦合到定时器信号的第三输入以及耦合到所述多路复用器的控制输入的输出。

4. 发明授权

US08994446B2 Integrated circuits and methods for monitoring forward and reverse back biasing 有权
标题翻译：用于监控正向和反向偏置的集成电路和方法
公开(公告)号：US08994446B2
公开(公告)日：2015-03-31
申请号：US13930657
申请日：2013-06-28
申请人： Stefano Pietri , Chris C. Dao , Anis M. Jarrar , Juxiang Ren
发明人： Stefano Pietri , Chris C. Dao , Anis M. Jarrar , Juxiang Ren
IPC分类号： H03K3/01 , G05F1/10
CPC分类号： G05F1/10 , G05F3/205
摘要： An integrated circuit includes a device of a first conductivity type formed in a first well; a voltage regulator configured to provide a bias voltage to the first well based on a first reference voltage which is generated using a first band gap reference generator; and a monitor circuit configured to compare a voltage of the first well to an upper limit and a lower limit of a first voltage range, wherein each of the upper limit and lower limit is provided using a second band gap reference generator, separate from the first band gap reference generator, wherein, in response to determining that the voltage of the first well is outside of the first voltage range, providing a first out of range indicator.
摘要翻译：集成电路包括形成在第一阱中的第一导电类型的器件; 电压调节器，被配置为基于使用第一带隙基准发生器产生的第一参考电压向第一阱提供偏置电压; 以及监视电路，被配置为将第一阱的电压与第一电压范围的上限和下限进行比较，其中使用第二带隙基准发生器提供上限和下限，带隙参考发生器，其中响应于确定所述第一阱的电压在所述第一电压范围之外，提供第一超出范围指示符。

5. 发明申请

US20140266098A1 VOLTAGE REGULATOR WITH CURRENT LIMITER 有权
标题翻译：具有电流限制的电压调节器
公开(公告)号：US20140266098A1
公开(公告)日：2014-09-18
申请号：US13828213
申请日：2013-03-14
申请人： Chris C. Dao , Stefano Pietri , Juxiang Ren
发明人： Chris C. Dao , Stefano Pietri , Juxiang Ren
IPC分类号： G05F1/573
CPC分类号： G05F1/573 , G05F1/575
摘要： A voltage regulator includes an amplifier having a first input coupled to a first reference voltage and a second input coupled to a voltage feedback signal; a multiplexer having a first input coupled to an output of the amplifier, a second input coupled to a voltage clamp signal, and a control input; and a control circuit having a first input coupled to an over current indicator, a second input coupled to a no over voltage indicator, a third input coupled to a timer signal, and an output coupled to the control input of the multiplexer.
摘要翻译：电压调节器包括具有耦合到第一参考电压的第一输入和耦合到电压反馈信号的第二输入的放大器; 多路复用器，其具有耦合到放大器的输出的第一输入，耦合到电压钳位信号的第二输入和控制输入; 以及控制电路，其具有耦合到过电流指示器的第一输入，耦合到无过电压指示器的第二输入，耦合到定时器信号的第三输入以及耦合到所述多路复用器的控制输入的输出。

6. 发明申请

US20140118036A1 STSTEM AND METHOD FOR CONTROLLING BYPASS OF A VOLTAGE REGULATOR 有权
标题翻译：用于控制电压调节器旁路的电路和方法
公开(公告)号：US20140118036A1
公开(公告)日：2014-05-01
申请号：US14105419
申请日：2013-12-13
申请人： Stefano Pietri , Chris C. Dao , Juxiang Ren , Nicolas Grossier , V. Srinivasan
发明人： Stefano Pietri , Chris C. Dao , Juxiang Ren , Nicolas Grossier , V. Srinivasan
IPC分类号： H03K17/22
CPC分类号： H03K17/22 , G01R31/2879 , G01R31/40
摘要： A voltage regulator bypass circuit to control bypass of a voltage regulator of an integrated circuit device, the voltage regulator bypass circuit including a first voltage detector, a second voltage detector, and circuit. The first voltage detector to detect that a core circuitry voltage level is above a first threshold and to assert a first detect signal at an output in response to the detection. The second voltage detector to detect that an unregulated supply voltage is above a second threshold and to assert a second detect signal at an output in response to the detection. The circuit having a first input coupled to the output of the first voltage detector and a second input coupled to the output of the second voltage detector, the circuit to bypass the voltage regulator in response the output of the latch being cleared.
摘要翻译：一种用于控制集成电路装置的电压调节器的旁路的电压调节器旁路电路，所述电压调节器旁路电路包括第一电压检测器，第二电压检测器和电路。第一电压检测器，用于检测核心电路电压电平高于第一阈值，并响应于检测在输出端断言第一检测信号。第二电压检测器，用于检测未调节的电源电压高于第二阈值，并响应于检测在输出端断言第二检测信号。电路具有耦合到第一电压检测器的输出端的第一输入端和耦合到第二电压检测器的输出端的第二输入端，该电路绕过电压调节器以响应锁存器的输出被清除。

7. 发明申请

US20130275936A1 INTEGRATED CIRCUIT POWER MANAGEMENT VERIFICATION METHOD 有权
标题翻译：集成电路电源管理验证方法
公开(公告)号：US20130275936A1
公开(公告)日：2013-10-17
申请号：US13447305
申请日：2012-04-16
申请人： Kumar Abhishek , Benjamin J. Ehlers , Sunny Gupta , Stefano Pietri
发明人： Kumar Abhishek , Benjamin J. Ehlers , Sunny Gupta , Stefano Pietri
IPC分类号： G06F17/50
CPC分类号： G06F17/5036 , G06F2217/62 , G06F2217/78 , G06F2217/84
摘要： A method for verifying power management of an integrated circuit design includes estimating a current load requirement of clocked modules in the circuit design based on the clock frequency and a predefined current load model. The voltage supplied to the circuit design is monitored. A first voltage regulator provides additional current drive to the circuit design when the supplied voltage drops below a threshold value of a full throttle run mode of the circuit design. A second voltage regulator is enabled to boost a response time of the first voltage regulator when the voltage drops below the threshold value.
摘要翻译：用于验证集成电路设计的电源管理的方法包括基于时钟频率和预定义的当前负载模型来估计电路设计中时钟模块的当前负载要求。监测供应给电路设计的电压。当所提供的电压低于电路设计的全油门运行模式的阈值时，第一电压调节器为电路设计提供额外的电流驱动。当电压下降到阈值以下时，第二电压调节器能够升高第一电压调节器的响应时间。

8. 发明申请

US20120242398A1 PROGRAMMABLE TEMPERATURE SENSING CIRCUIT FOR AN INTEGRATED CIRCUIT 有权
标题翻译：用于集成电路的可编程温度感测电路
公开(公告)号：US20120242398A1
公开(公告)日：2012-09-27
申请号：US13052891
申请日：2011-03-21
申请人： Alfredo Olmos , Stefano Pietri , Ricardo P. Coimbra
发明人： Alfredo Olmos , Stefano Pietri , Ricardo P. Coimbra
IPC分类号： H03K3/011
CPC分类号： G01K7/01
摘要： A programmable temperature sensing circuit includes a comparator, first and second CTAT sensing elements, first and second PTAT reference circuits, and a selection circuit. When a selection signal is a first logic state, an output terminal of the first PTAT reference circuit is coupled to the second CTAT temperature sensing element for providing a first threshold voltage to the second input of the comparator. When the selection signal is a second logic state different from the first logic state, a series-connection of the first PTAT reference circuit and the second PTAT reference circuit are coupled to the second CTAT temperature sensing element for providing a second threshold voltage to the second input of the comparator. The comparator provides an output voltage indication when a voltage provided by the first CTAT sensing element compares favorably with the selected one of the first or second threshold voltages.
摘要翻译：可编程温度感测电路包括比较器，第一和第二CTAT感测元件，第一和第二PTAT参考电路以及选择电路。当选择信号是第一逻辑状态时，第一PTAT参考电路的输出端耦合到第二CTAT温度感测元件，用于向比较器的第二输入提供第一阈值电压。当选择信号是与第一逻辑状态不同的第二逻辑状态时，第一PTAT参考电路和第二PTAT参考电路的串联连接耦合到第二CTAT温度感测元件，以向第二逻辑状态提供第二阈值电压输入比较器。当由第一CTAT感测元件提供的电压与所选择的第一或第二阈值电压中的一个相比较时，比较器提供输出电压指示。

9. 发明授权

US07868877B2 Touch panel detection circuitry and method of operation 有权
标题翻译：触摸屏检测电路及操作方法
公开(公告)号：US07868877B2
公开(公告)日：2011-01-11
申请号：US11874400
申请日：2007-10-18
申请人： Stefano Pietri , Sheng Lin , Alfredo Olmos , David R. Tipple
发明人： Stefano Pietri , Sheng Lin , Alfredo Olmos , David R. Tipple
IPC分类号： G06F3/045
CPC分类号： G06F3/045 , G06F3/0416
摘要： A touch panel detection circuit includes current limiting circuitry that has a first portion coupled between a first supply voltage terminal and a first input node and a second portion coupled between a second input node and a second supply voltage terminal. Programmable precharge circuitry connects the first input node to the first supply voltage terminal via a conductive path that is in parallel with the first portion of the current limiting circuitry and precharges the first input node to a predetermined voltage. Comparison circuitry is coupled to the programmable precharge circuitry and to the first input node. The comparison circuitry detects a change in resistance between the first input node and the second input node and provides a signal in response thereto when the comparison circuitry is enabled by the programmable precharge circuitry.
摘要翻译：触摸面板检测电路包括限流电路，其具有耦合在第一电源电压端子和第一输入节点之间的第一部分和耦合在第二输入节点和第二电源电压端子之间的第二部分。可编程预充电电路经由与限流电路的第一部分并联并将第一输入节点预充电到预定电压的导电路径将第一输入节点连接到第一电源电压端。比较电路耦合到可编程预充电电路和第一输入节点。当比较电路由可编程预充电电路使能时，比较电路检测第一输入节点和第二输入节点之间的电阻变化并提供响应于此的信号。

10. 发明授权

US07602233B2 Voltage multiplier with improved efficiency 有权
标题翻译：电压倍增器效率提高
公开(公告)号：US07602233B2
公开(公告)日：2009-10-13
申请号：US12040277
申请日：2008-02-29
申请人： Stefano Pietri , Marcos Augusto De Goes , Roberto Angelo Bertoli
发明人： Stefano Pietri , Marcos Augusto De Goes , Roberto Angelo Bertoli
IPC分类号： G05F1/10 , G05F3/02
CPC分类号： H02M3/073 , H02M2003/078
摘要： A multi-stage voltage multiplication circuit and methodology are provided which use a multi-stage charge pump boosting circuit (210) and two-stage pass gate circuit (220) having complementary power switches (M6, M9, M7, M10) to efficiently develop an output voltage (VOUT) that is higher than the input supply voltage (VDD). By using a two-stage complementary switch to connect boosted clock signals (P1, P2) from a charge pump (210) to the multiplier output (VOUT), return current from the storage capacitor (COUT) to the pumping capacitor (C1, C2) is blocked, thereby increasing power transfer efficiency, even at high clock frequencies. In addition, a boosted auxiliary voltage is generated by an additional boosting stage (230) and applied to the PMOS wells of the pass gate circuit (220), thereby preventing latch-up and backflow.
摘要翻译：提供了一种多级电压倍增电路和方法，其使用具有互补功率开关（M6，M9，M7，M10）的多级电荷泵升压电路（210）和两级通过门电路（220）来有效开发输出电压（VOUT）高于输入电源电压（VDD）。通过使用两级互补开关将来自电荷泵（210）的升压时钟信号（P1，P2）连接到乘法器输出（VOUT），从存储电容器（COUT）到泵浦电容器（C1，C2）的返回电流）被阻塞，从而即使在高时钟频率下也增加功率传输效率。此外，通过额外的升压级（230）产生升压的辅助电压，并施加到通路电路（220）的PMOS阱，从而防止闭锁和回流。

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