公开(公告)号：US08860378B2

公开(公告)日：2014-10-14

申请号：US13303176

申请日：2011-11-23

Applicant: Srinivas K. Pulijala

Inventor： Srinivas K. Pulijala

IPC: H01M10/44 ,  H01M10/46 ,  H02J7/00

CPC classification number: H02J7/0009 ,  H02J7/0004 ,  H02J7/0036 ,  H02J2007/0062

Abstract: Embodiments of the present disclosure provide a method and system for indicating an attachment and removal for a portable device. The method includes the steps of attaching the portable device to a charging system, delivering current to the portable device from the charging system, the delivered current is limited based on the portable device, replicating the current flowing through the first switch at a second switch, generating a voltage based on the current flowing through the second switch, comparing the voltage with a pre-defined threshold voltage, and indicating at least one of attachment or removal for the portable device based on the comparison.

Abstract translation: 本公开的实施例提供了一种用于指示便携式设备的附接和移除的方法和系统。 该方法包括以下步骤：将便携式设备连接到充电系统，从充电系统向便携式设备传送电流，基于便携式设备限制输送电流，在第二开关处复制流过第一开关的电流， 基于流经所述第二开关的电流产生电压，将所述电压与预定义的阈值电压进行比较，并且基于所述比较来指示所述便携式设备的附接或移除中的至少一个。

公开(公告)号：US20130222330A1

公开(公告)日：2013-08-29

申请号：US13408940

申请日：2012-02-29

Applicant: Lynn R. Kern ,  Srinivas K. Pulijala ,  Ken Gay

Inventor： Lynn R. Kern ,  Srinivas K. Pulijala ,  Ken Gay

IPC: G06F3/045

CPC classification number: G06F3/045 ,  G06F3/0416 ,  G06F2203/04104

Abstract: The present disclosure provides a selective data acquisition system of a matrix resistive touch panel and a method of using the data acquisition system to selectively acquire data on a touch panel. Each analog signal from the sensing track is tested with its own threshold value to determine whether the characteristics of the analyzed signal are sufficient to constitute a user's actuation on the touchscreen. If the analyzed analog signal exceeds or otherwise clears the threshold, the selective data acquisition system converts the signal into a digital word. Conversely, if the analyzed analog signal falls below or otherwise fails the threshold, the selective data acquisition system does not convert the signal. This process continues for all analog signals from the sensing tracks.

Abstract translation: 本公开提供了矩阵电阻式触摸屏的选择性数据采集系统和使用数据采集系统选择性地在触摸面板上获取数据的方法。 来自感测轨道的每个模拟信号都用其自己的阈值进行测试，以确定分析信号的特性是否足以构成用户在触摸屏上的启动。 如果分析的模拟信号超过或以其他方式清除阈值，则选择性数据采集系统将该信号转换为数字字。 相反，如果分析的模拟信号低于阈值或以其他方式失败，则选择性数据采集系统不会转换信号。 该过程对于来自感测轨道的所有模拟信号都是继续的。

公开(公告)号：US07622954B2

公开(公告)日：2009-11-24

申请号：US12037639

申请日：2008-02-26

Applicant: Paul F. Illegems ,  Srinivas K. Pulijala

Inventor： Paul F. Illegems ,  Srinivas K. Pulijala

IPC: H03K19/0175

CPC classification number: H03K3/356182

Abstract: A level-shifter circuit configured to transfer data between two voltage supply domains may eliminate crowbar current while simultaneously providing a valid output signal. The level-shifter circuit may transfer a data signal between the two voltage domains using a latch that is capable of maintaining its output level—based on the destination supply rail—to correspond to the same state to which the level of the input signal—based on the originating supply rail—corresponds, even when the originating supply is decreased to a zero-volt state, or to a voltage equivalent to a low state. During normal operation, when both power supplies are available, the signal at the output of the latch, and hence at the output of the level-shifter circuit may toggle to always track the input signal. Thus, the level of the signal at the output of the level-shifter may always represent the same state (e.g. binary value) as the level of the input signal, during normal operation and also when the originating power supply is powered down.

Abstract translation: 配置为在两个电压供应域之间传送数据的电平移动器电路可以消除撬棒电流，同时提供有效的输出信号。 电平移位器电路可以使用能够基于目的地电源轨道维持其输出电平的锁存器来在两个电压域之间传送数据信号，以对应于基于输入信号的电平的电平的相同状态 即使当始发电源降低到零伏特状态或相当于低电平的电压时，也就是对应于始发电源轨。 在正常操作期间，当两个电源可用时，锁存器的输出端处的信号，因此在电平移位器电路的输出处的信号可以切换以始终跟踪输入信号。 因此，电平移位器的输出处的信号电平可以总是表示与正常操作期间的输入信号的电平相同的状态（例如二进制值），以及始发电源断电时的状态。

公开(公告)号：US20090212842A1

公开(公告)日：2009-08-27

申请号：US12037639

申请日：2008-02-26

Applicant: Paul F. Illegems ,  Srinivas K. Pulijala

Inventor： Paul F. Illegems ,  Srinivas K. Pulijala

IPC: H03L5/00

CPC classification number: H03K3/356182

Abstract: A level-shifter circuit configured to transfer data between two voltage supply domains may eliminate crowbar current while simultaneously providing a valid output signal. The level-shifter circuit may transfer a data signal between the two voltage domains using a latch that is capable of maintaining its output level—based on the destination supply rail—to correspond to the same state to which the level of the input signal—based on the originating supply rail—corresponds, even when the originating supply is decreased to a zero-volt state, or to a voltage equivalent to a low state. During normal operation, when both power supplies are available, the signal at the output of the latch, and hence at the output of the level-shifter circuit may toggle to always track the input signal. Thus, the level of the signal at the output of the level-shifter may always represent the same state (e.g. binary value) as the level of the input signal, during normal operation and also when the originating power supply is powered down.

Abstract translation: 配置为在两个电压供应域之间传送数据的电平移动器电路可以消除撬棒电流，同时提供有效的输出信号。 电平移位器电路可以使用能够基于目的地电源轨道维持其输出电平的锁存器来在两个电压域之间传送数据信号，以对应于基于输入信号的电平的电平的相同状态 即使当始发电源降低到零伏特状态或相当于低电平的电压时，也就是对应于始发电源轨。 在正常操作期间，当两个电源可用时，锁存器的输出端处的信号，因此在电平移位器电路的输出处的信号可以切换以始终跟踪输入信号。 因此，电平移位器的输出处的信号电平可以总是表示与正常操作期间的输入信号的电平相同的状态（例如二进制值），以及始发电源断电时的状态。

公开(公告)号：US08653829B2

公开(公告)日：2014-02-18

申请号：US13307018

申请日：2011-11-30

Applicant: Srinivas K. Pulijala

Inventor： Srinivas K. Pulijala

IPC: G01R35/00 ,  G01R31/00

CPC classification number: H03F3/45183 ,  H03F3/45757 ,  H03F3/505 ,  H03F2203/45318 ,  H03F2203/45352 ,  H03F2203/45648 ,  H03F2203/45702

Abstract: A method and system for high gain auto-zeroing arrangement for electronic circuits. An auto-zero electronic circuit eliminates an offset associated with a test electronic circuit. The test electronic circuit includes a pair of input terminals configured to receive an input voltage signal and a pair of output terminals. The auto-zero electronic circuit includes a pair of source followers, and a pair of capacitors coupled to the output terminals of the test electronic circuit for sampling the offset associated with the test electronic circuit. The auto-zero electronic circuit also includes a differential pair coupled to the pair of source followers. A pair of diode-connected transistors, coupled to the differential pair, is configured to generate biasing voltage signals. The biasing voltage signals modulate the control terminals of a pair of input source followers of the test electronic circuit and eliminate the offset associated with the test electronic circuit.

Abstract translation: 一种用于电子电路的高增益自动调零装置的方法和系统。 自动归零电子电路消除了与测试电子电路相关的偏移。 测试电子电路包括被配置为接收输入电压信号的一对输入端子和一对输出端子。 自动归零电子电路包括一对源极跟随器和耦合到测试电子电路的输出端子的一对电容器，用于对与测试电子电路相关联的偏移进行采样。 自动归零电子电路还包括耦合到一对源跟随器的差分对。 耦合到差分对的一对二极管连接的晶体管被​​配置为产生偏置电压信号。 偏置电压信号调制测试电子电路的一对输入源跟随器的控制端，并消除与测试电子电路相关的偏移。

公开(公告)号：US20130134988A1

公开(公告)日：2013-05-30

申请号：US13307018

申请日：2011-11-30

Applicant: Srinivas K. Pulijala

Inventor： Srinivas K. Pulijala

IPC: G01R35/00

CPC classification number: H03F3/45183 ,  H03F3/45757 ,  H03F3/505 ,  H03F2203/45318 ,  H03F2203/45352 ,  H03F2203/45648 ,  H03F2203/45702

Abstract: A method and system for high gain auto-zeroing arrangement for electronic circuits. An auto-zero electronic circuit eliminates an offset associated with a test electronic circuit. The test electronic circuit includes a pair of input terminals configured to receive an input voltage signal and a pair of output terminals. The auto-zero electronic circuit includes a pair of source followers, and a pair of capacitors coupled to the output terminals of the test electronic circuit for sampling the offset associated with the test electronic circuit. The auto-zero electronic circuit also includes a differential pair coupled to the pair of source followers. A pair of diode-connected transistors, coupled to the differential pair, is configured to generate biasing voltage signals. The biasing voltage signals modulate the control terminals of a pair of input source followers of the test electronic circuit and eliminate the offset associated with the test electronic circuit.

Abstract translation: 一种用于电子电路的高增益自动调零装置的方法和系统。 自动归零电子电路消除了与测试电子电路相关的偏移。 测试电子电路包括被配置为接收输入电压信号的一对输入端子和一对输出端子。 自动归零电子电路包括一对源极跟随器和耦合到测试电子电路的输出端子的一对电容器，用于对与测试电子电路相关联的偏移进行采样。 自动归零电子电路还包括耦合到一对源跟随器的差分对。 耦合到差分对的一对二极管连接的晶体管被​​配置为产生偏置电压信号。 偏置电压信号调制测试电子电路的一对输入源跟随器的控制端，并消除与测试电子电路相关的偏移。

公开(公告)号：US20130127402A1

公开(公告)日：2013-05-23

申请号：US13303176

申请日：2011-11-23

Applicant: Srinivas K. Pulijala

Inventor： Srinivas K. Pulijala

IPC: H02J7/00

CPC classification number: H02J7/0009 ,  H02J7/0004 ,  H02J7/0036 ,  H02J2007/0062

Abstract: Embodiments of the present disclosure provide a method and system for indicating an attachment and removal for a portable device. The method includes the steps of attaching the portable device to a charging system, delivering current to the portable device from the charging system, the delivered current is limited based on the portable device, replicating the current flowing through the first switch at a second switch, generating a voltage based on the current flowing through the second switch, comparing the voltage with a pre-defined threshold voltage, and indicating at least one of attachment or removal for the portable device based on the comparison.

Abstract translation: 本公开的实施例提供了一种用于指示便携式设备的附接和移除的方法和系统。 该方法包括以下步骤：将便携式设备连接到充电系统，从充电系统向便携式设备传送电流，基于便携式设备限制传送的电流，在第二开关处复制流过第一开关的电流， 基于流经所述第二开关的电流产生电压，将所述电压与预定义的阈值电压进行比较，并且基于所述比较来指示所述便携式设备的附接或移除中的至少一个。

公开(公告)号：US07907003B2

公开(公告)日：2011-03-15

申请号：US12353843

申请日：2009-01-14

Applicant: Srinivas K. Pulijala ,  Paul F. Illegems

Inventor： Srinivas K. Pulijala ,  Paul F. Illegems

IPC: G05F1/10 ,  G05F3/02

CPC classification number: G05F1/575

Abstract: An electronic circuit may comprise an input stage powered by a supply voltage and configured to receive a reference signal. The circuit may further comprise an output stage powered by the supply voltage and coupled to the input stage, and configured to generate an error signal based on: the reference signal, and a feedback signal based on an output signal. The circuit may also include a pass transistor powered by the supply voltage and configured to generate the output signal based on the error signal. A capacitor coupled between the supply voltage and the output stage may increase the current flowing in the output stage, resulting in the output stage conducting current even during a rising edge of the supply voltage, preventing the output signal from reaching the level of the supply voltage during the rising edge of the supply voltage.

Abstract translation: 电子电路可以包括由电源电压供电并被配置为接收参考信号的输入级。 电路还可以包括由电源电压供电并耦合到输入级的输出级，并且被配置为基于：参考信号和基于输出信号的反馈信号来产生误差信号。 电路还可以包括由电源电压供电并被配置为基于误差信号产生输出信号的传输晶体管。 耦合在电源电压和输出级之间的电容器可以增加在输出级中流动的电流，导致即使在电源电压的上升沿期间输出级也导通电流，从而防止输出信号达到电源电压 在电源电压的上升沿。

公开(公告)号：US20100213917A1

公开(公告)日：2010-08-26

申请号：US12389581

申请日：2009-02-20

Applicant: Srinivas K. Pulijala ,  Scott C. McLeod

Inventor： Srinivas K. Pulijala ,  Scott C. McLeod

IPC: G05F1/00

CPC classification number: G05F1/575

Abstract: A voltage regulator may comprise a regulator output configured to provide a regulated voltage, which may be controlled by an error amplifier based on the regulated voltage and a reference voltage. The error amplifier may control a source-follower stage to mirror a multiple of the current flowing in the source-follower stage into an internal pass device. A voltage developed by the mirror current may control an external pass device configured to deliver the load current into the regulator output. A first resistor may be configured to decouple a load capacitor coupled between the regulator output and reference ground, when the load current is below a specified value. A second resistor may be configured to create a bias current in the internal pass device even when the external pass device is close to cut-off region. A third resistor may be configured to counter the effects of negative impedance at the control terminal of the external pass device caused by the current-gain of the external pass device. A compensation capacitor and resistor may be coupled in series between the output of the error amplifier and the output of the voltage regulator to provide frequency compensation for the Miller-Effect.

Abstract translation: 电压调节器可以包括被配置为提供调节电压的调节器输出，其可以由基于调节电压和参考电压的误差放大器控制。 误差放大器可以控制源极跟随器级将在源极跟随器级中流动的电流的倍数镜像成内部通过器件。 由反射镜电流产生的电压可以控制配置成将负载电流传递到调节器输出中的外部通过装置。 当负载电流低于规定值时，第一电阻器可以被配置为去耦耦合在调节器输出端和参考地之间的负载电容器。 第二电阻器可以被配置为在内部通路器件中产生偏置电流，即使当外部通过器件接近截止区域时。 第三电阻器可以被配置为对抗由外部通过器件的电流增益引起的外部通过器件的控制端子处的负阻抗的影响。 补偿电容器和电阻器可以串联耦合在误差放大器的输出端和电压调节器的输出端之间，为米勒效应提供频率补偿。