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1. 发明申请

US20120019322A1 LOW DROPOUT CURRENT SOURCE 审中-公开
标题翻译：低压差电流源
公开(公告)号：US20120019322A1
公开(公告)日：2012-01-26
申请号：US13155556
申请日：2011-06-08
申请人： Pradeep Charles Silva , Praveen Varma Nadimpalli , Joseph Hubert Colles
发明人： Pradeep Charles Silva , Praveen Varma Nadimpalli , Joseph Hubert Colles
IPC分类号： H03F3/45 , G05F1/575
CPC分类号： H03F1/30 , G05F1/575 , H03F3/189 , H03F3/24 , H03F2200/447 , H03F2200/555 , H03F2200/78
摘要： Disclosed is a low dropout current source that includes a first field effect transistor (FET), a second FET having a drain that is an output for an output voltage and an output current, and a third FET, wherein a gate of the first FET is coupled to both a gate of the second FET and a drain of the third FET, and wherein a drain of the first FET is coupled to a source of the third FET. A differential amplifier has an inverting input coupled to the drain of the first FET, a non-inverting input coupled to the drain of the second FET and an amplifier output coupled to the gate of the third FET. A current reference is coupled between the drain of the third FET and a fixed voltage node. The current reference provides a reference current that is multiplied and output from the third FET.
摘要翻译：公开了一种低压差电流源，其包括第一场效应晶体管（FET），具有作为输出电压和输出电流的输出的漏极的第二FET和第三FET，其中第一FET的栅极为耦合到第二FET的栅极和第三FET的漏极，并且其中第一FET的漏极耦合到第三FET的源极。差分放大器具有耦合到第一FET的漏极的反相输入端，耦合到第二FET的漏极的非反相输入端和耦合到第三FET栅极的放大器输出端。电流基准耦合在第三FET的漏极和固定电压节点之间。电流参考值提供了一个与第三个FET相乘和输出的参考电流。

2. 发明申请

US20120154042A1 ANALOG MULTIPLIER 失效
标题翻译：模拟乘法器
公开(公告)号：US20120154042A1
公开(公告)日：2012-06-21
申请号：US13047361
申请日：2011-03-14
申请人： Praveen Varma Nadimpalli , Joseph Hubert Colles
发明人： Praveen Varma Nadimpalli , Joseph Hubert Colles
IPC分类号： H03F1/00 , G06G7/16
CPC分类号： G06G7/16
摘要： An exemplary embodiment of an analog multiplier may include a voltage controlled resistance circuit, a first transistor and a second transistor, where the resistance of the voltage controlled resistance circuit is based upon a difference between a supply voltage and a first input voltage and a constant current supply. The current passing through the voltage controlled resistance circuit is based upon a difference between the voltage supply and a second input voltage. The first transistor may be configured to mirror the current passing through the voltage controlled resistance circuit.
摘要翻译：模拟乘法器的示例性实施例可以包括电压控制电阻电路，第一晶体管和第二晶体管，其中电压控制电阻电路的电阻基于电源电压和第一输入电压与恒定电流之间的差供应。通过压控电阻电路的电流是基于电源和第二输入电压之间的差。第一晶体管可以被配置为镜像通过压控电阻电路的电流。

3. 发明申请

US20120019405A1 CURRENT DAC 有权
标题翻译：电流DAC
公开(公告)号：US20120019405A1
公开(公告)日：2012-01-26
申请号：US13161742
申请日：2011-06-16
申请人： Praveen Varma Nadimpalli , Joseph Hubert Colles
发明人： Praveen Varma Nadimpalli , Joseph Hubert Colles
IPC分类号： H03M1/80
CPC分类号： H03F1/30 , G05F1/575 , H03F3/189 , H03F3/24 , H03F2200/447 , H03F2200/555 , H03F2200/78
摘要： A current digital-to-analog converter (DAC) is disclosed. The current DAC includes a current reference circuit coupled between a voltage source terminal and a voltage node, wherein the current reference circuit includes a feedback node. A switchable resistor network is communicably coupled to the feedback node of the current reference circuit via a first feedback network that is adapted to equalize a first voltage across the switchable resistor network voltage with a second voltage between the feedback node and the voltage node. A current mirror includes an output node communicably coupled to the switchable resistor network via a second feedback network that is adapted to equalize an output current that flows from the output node with an input current that flows into the switchable resistor network.
摘要翻译：公开了一种当前的数模转换器（DAC）。电流DAC包括耦合在电压源端子和电压节点之间的电流参考电路，其中电流参考电路包括反馈节点。可切换电阻网络经由第一反馈网络可通信地耦合到电流参考电路的反馈节点，该第一反馈网络适于使可切换电阻器网络电压上的第一电压与反馈节点与电压节点之间的第二电压相等。电流镜包括经由第二反馈网络可通信地耦合到可切换电阻器网络的输出节点，其适于使从输出节点流出的输出电流与流入可切换电阻器网络的输入电流相等。

4. 发明授权

US08624659B2 Analog divider 失效
标题翻译：模拟分频器
公开(公告)号：US08624659B2
公开(公告)日：2014-01-07
申请号：US13047211
申请日：2011-03-14
申请人： Praveen Varma Nadimpalli , Joseph Hubert Colles
发明人： Praveen Varma Nadimpalli , Joseph Hubert Colles
IPC分类号： G06G7/16
CPC分类号： G06G7/16
摘要： An exemplary embodiment of an analog multiplier may include a voltage controlled resistance circuit, a first transistor and a second transistor, where the resistance of the voltage controlled resistance circuit is based upon a first input voltage. The current passing through the voltage controlled resistance circuit is based upon a second input voltage. The first transistor and the second transistor form a current mirror to mirror the current passing through the voltage controlled resistance circuit to provide a power supply control current to a wideband code division multiple access radio frequency power amplifier.
摘要翻译：模拟乘法器的示例性实施例可以包括电压控制电阻电路，第一晶体管和第二晶体管，其中电压控制电阻电路的电阻基于第一输入电压。通过压控电阻电路的电流基于第二输入电压。第一晶体管和第二晶体管形成电流镜以反射通过压控电阻电路的电流，以向宽带码分多址射频功率放大器提供电源控制电流。

5. 发明授权

US08618862B2 Analog divider 失效
标题翻译：模拟分频器
公开(公告)号：US08618862B2
公开(公告)日：2013-12-31
申请号：US13047361
申请日：2011-03-14
申请人： Praveen Varma Nadimpalli , Joseph Hubert Colles
发明人： Praveen Varma Nadimpalli , Joseph Hubert Colles
IPC分类号： G06G7/16
CPC分类号： G06G7/16
摘要： An exemplary embodiment of an analog multiplier may include a voltage controlled resistance circuit, a first transistor and a second transistor, where the resistance of the voltage controlled resistance circuit is based upon a difference between a supply voltage and a first input voltage and a constant current supply. The current passing through the voltage controlled resistance circuit is based upon a difference between the voltage supply and a second input voltage. The first transistor may be configured to mirror the current passing through the voltage controlled resistance circuit.
摘要翻译：模拟乘法器的示例性实施例可以包括电压控制电阻电路，第一晶体管和第二晶体管，其中电压控制电阻电路的电阻基于电源电压和第一输入电压与恒定电流之间的差供应。通过压控电阻电路的电流是基于电源和第二输入电压之间的差。第一晶体管可以被配置为镜像通过压控电阻电路的电流。

6. 发明授权

US08410966B2 Current DAC 有权
标题翻译：电流DAC
公开(公告)号：US08410966B2
公开(公告)日：2013-04-02
申请号：US13161742
申请日：2011-06-16
申请人： Praveen Varma Nadimpalli , Joseph Hubert Colles
发明人： Praveen Varma Nadimpalli , Joseph Hubert Colles
IPC分类号： H03M1/80
CPC分类号： H03F1/30 , G05F1/575 , H03F3/189 , H03F3/24 , H03F2200/447 , H03F2200/555 , H03F2200/78
摘要： A current digital-to-analog converter (DAC) is disclosed. The current DAC includes a current reference circuit coupled between a voltage source terminal and a voltage node, wherein the current reference circuit includes a feedback node. A switchable resistor network is communicably coupled to the feedback node of the current reference circuit via a first feedback network that is adapted to equalize a first voltage across the switchable resistor network voltage with a second voltage between the feedback node and the voltage node. A current mirror includes an output node communicably coupled to the switchable resistor network via a second feedback network that is adapted to equalize an output current that flows from the output node with an input current that flows into the switchable resistor network.
摘要翻译：公开了一种当前的数模转换器（DAC）。电流DAC包括耦合在电压源端子和电压节点之间的电流参考电路，其中电流参考电路包括反馈节点。可切换电阻网络经由第一反馈网络可通信地耦合到电流参考电路的反馈节点，该第一反馈网络适于使可切换电阻器网络电压上的第一电压与反馈节点与电压节点之间的第二电压相等。电流镜包括经由第二反馈网络可通信地耦合到可切换电阻器网络的输出节点，其适于使从输出节点流出的输出电流与流入可切换电阻器网络的输入电流相等。

7. 发明申请

US20120154015A1 ANALOG MULTIPLIER 失效
标题翻译：模拟乘法器
公开(公告)号：US20120154015A1
公开(公告)日：2012-06-21
申请号：US13047211
申请日：2011-03-14
申请人： Praveen Varma Nadimpalli , Joseph Hubert Colles
发明人： Praveen Varma Nadimpalli , Joseph Hubert Colles
IPC分类号： G06G7/16
CPC分类号： G06G7/16
摘要： An exemplary embodiment of an analog multiplier may include a voltage controlled resistance circuit, a first transistor and a second transistor, where the resistance of the voltage controlled resistance circuit is based upon a first input voltage. The current passing through the voltage controlled resistance circuit is based upon a second input voltage. The first transistor and the second transistor form a current mirror to mirror the current passing through the voltage controlled resistance circuit to provide a power supply control current to a wideband code division multiple access radio frequency power amplifier.
摘要翻译：模拟乘法器的示例性实施例可以包括电压控制电阻电路，第一晶体管和第二晶体管，其中电压控制电阻电路的电阻基于第一输入电压。通过压控电阻电路的电流基于第二输入电压。第一晶体管和第二晶体管形成电流镜以反射通过压控电阻电路的电流，以向宽带码分多址射频功率放大器提供电源控制电流。

8. 发明授权

US08811920B2 DC-DC converter semiconductor die structure 有权
标题翻译： DC-DC转换器半导体管芯结构
公开(公告)号：US08811920B2
公开(公告)日：2014-08-19
申请号：US13287713
申请日：2011-11-02
申请人： Robert Deuchars , Jean-Christophe Berchtold , Joseph Hubert Colles , David Zimlich , Chris Levesque , William David Southcombe , David E. Jones , Scott Yoder , Terry J. Stockert
发明人： Robert Deuchars , Jean-Christophe Berchtold , Joseph Hubert Colles , David Zimlich , Chris Levesque , William David Southcombe , David E. Jones , Scott Yoder , Terry J. Stockert
IPC分类号： H01Q11/12 , H04B1/28
CPC分类号： H03F1/0227 , H03F1/0261 , H03F1/0277 , H03F3/195 , H03F3/211 , H03F3/245 , H03F3/602 , H03F3/72 , H03F2200/171 , H03F2200/222 , H03F2200/27 , H03F2200/318 , H03F2200/336 , H03F2200/387 , H03F2200/411 , H03F2200/414 , H03F2200/417 , H03F2200/451 , H03F2200/504 , H03F2200/534 , H03F2200/537 , H03F2200/541 , H03F2203/21106 , H03F2203/21142 , H03F2203/21157
摘要： A direct current (DC)-DC converter having a DC-DC converter semiconductor die and an alpha flying capacitive element is disclosed. The DC-DC converter semiconductor die includes a first series alpha switching element, a second series alpha switching element, a first alpha flying capacitor connection node, which is about over the second series alpha switching element, and a second alpha flying capacitor connection node, which is about over the first series alpha switching element. The alpha flying capacitive element is electrically coupled between the first alpha flying capacitor connection node and the second alpha flying capacitor connection node. By locating the first alpha flying capacitor connection node and the second alpha flying capacitor connection node about over the second series alpha switching element and the first series alpha switching element, respectively, lengths of transient current paths may be minimized, thereby reducing noise and potential interference.
摘要翻译：公开了具有DC-DC转换器半导体管芯和α型飞行电容元件的直流（DC）-DC转换器。 DC-DC转换器半导体管芯包括第一系列α开关元件，第二串联α开关元件，大约在第二串联α开关元件上方的第一α型飞秒电容器连接节点和第二α型飞秒电容器连接节点，这是关于超过第一系列α开关元件。 α飞行电容元件电耦合在第一α型飞秒电容器连接节点和第二α型飞秒电容器连接节点之间。通过分别在第二系列α开关元件和第一系列α开关元件周围定位第一个α飞秒电容器连接节点和第二个α飞秒电容器连接节点，可以将瞬态电流路径的长度最小化，从而降低噪声和潜在干扰。

9. 发明授权

US09214865B2 Voltage compatible charge pump buck and buck power supplies 有权
标题翻译：电压兼容电荷泵降压和降压电源
公开(公告)号：US09214865B2
公开(公告)日：2015-12-15
申请号：US13226831
申请日：2011-09-07
申请人： Chris Levesque , Jean-Christophe Berchtold , Joseph Hubert Colles , Robert Deuchars , William David Southcombe , David Zimlich , David E. Jones , Scott Yoder , Terry J. Stockert
发明人： Chris Levesque , Jean-Christophe Berchtold , Joseph Hubert Colles , Robert Deuchars , William David Southcombe , David Zimlich , David E. Jones , Scott Yoder , Terry J. Stockert
IPC分类号： G05F1/00 , H02M3/158 , H03F1/02 , H03F3/195 , H03F3/21 , H03F3/24 , H02M3/07 , H04B1/04
CPC分类号： H02M3/1584 , H02M3/07 , H03F1/0227 , H03F1/0277 , H03F3/195 , H03F3/211 , H03F3/245 , H03F2200/18 , H03F2200/336 , H04B2001/0416
摘要： The present disclosure relates to a flexible direct current (DC)-DC converter, which includes a charge pump buck power supply and a buck power supply. The charge pump buck power supply and the buck power supply are voltage compatible with one another at respective output inductance nodes to provide flexibility. In one embodiment of the DC-DC converter, capacitances at the output inductance nodes are at least partially isolated from one another by using at least an isolating inductive element between the output inductance nodes to increase efficiency. In an alternate embodiment of the DC-DC converter, the output inductance nodes are coupled to one another, such that the charge pump buck power supply and the buck power supply share a first inductive element, thereby eliminating the isolating inductive element, which reduces size and cost but may also reduce efficiency.
摘要翻译：本公开涉及一种柔性直流（DC）-DC转换器，其包括电荷泵降压电源和降压电源。电荷泵降压电源和降压电源在相应的输出电感节点处彼此电压兼容，以提供灵活性。在DC-DC转换器的一个实施例中，输出电感节点处的电容至少部分地通过在输出电感节点之间使用至少一个隔离电感元件来隔离，以提高效率。在DC-DC转换器的替代实施例中，输出电感节点彼此耦合，使得电荷泵降压电源和降压电源共享第一电感元件，从而消除了隔离电感元件，其减小了尺寸和成本，但也可能降低效率。

10. 发明授权

US08515361B2 Frequency correction of a programmable frequency oscillator by propagation delay compensation 有权
标题翻译：通过传播延迟补偿对可编程频率振荡器进行频率校正
公开(公告)号：US08515361B2
公开(公告)日：2013-08-20
申请号：US13198074
申请日：2011-08-04
申请人： Chris Levesque , Jean-Christophe Berchtold , Joseph Hubert Colles
发明人： Chris Levesque , Jean-Christophe Berchtold , Joseph Hubert Colles
IPC分类号： H04B1/40 , H03C3/09 , H03J7/04
CPC分类号： H03C3/09 , H02M3/07 , H02M3/156 , H02M2001/0064 , H02M2001/008 , H03F1/0227 , H03F1/0261 , H03F1/0277 , H03F1/52 , H03F1/523 , H03F1/56 , H03F3/189 , H03F3/195 , H03F3/24 , H03F3/68 , H03F3/72 , H03F2200/102 , H03F2200/171 , H03F2200/18 , H03F2200/27 , H03F2200/336 , H03F2200/411 , H03F2200/414 , H03F2200/417 , H03F2200/421 , H03F2200/426 , H03F2200/429 , H03F2200/504 , H03F2200/555 , H03F2203/21106 , H03F2203/21142 , H03F2203/21145 , H03F2203/21157 , H03F2203/21175 , H03F2203/7209 , H03F2203/7221 , H03F2203/7236 , H03G3/3042 , H03J7/04 , H04B1/405
摘要： A first programmable frequency oscillator, which includes a first ramp comparator and programmable signal generation circuitry is disclosed. The programmable signal generation circuitry provides a ramping signal, which has a first frequency, based on a desired first frequency. The first ramp comparator receives the ramping signal and provides a first ramp comparator output signal based on the ramping signal. The first ramp comparator output signal is fed back to the programmable signal generation circuitry, such that the ramping signal is based on the desired first frequency and the first ramp comparator output signal. However, the first ramp comparator has a first propagation delay, which introduces a frequency error into the programmable frequency oscillator. Therefore, the first frequency is not proportional to one or more slopes of the ramping signal. As a result, the programmable signal generation circuitry compensates for the frequency error based on the desired first frequency.
摘要翻译：公开了一种包括第一斜坡比较器和可编程信号发生电路的第一可编程频率振荡器。可编程信号产生电路基于期望的第一频率提供具有第一频率的斜坡信号。第一斜坡比较器接收斜坡信号，并且基于斜坡信号提供第一斜坡比较器输出信号。第一斜坡比较器输出信号被反馈到可编程信号产生电路，使得斜坡信号基于期望的第一频率和第一斜坡比较器输出信号。然而，第一斜坡比较器具有第一传播延迟，其将频率误差引入到可编程频率振荡器中。因此，第一频率与斜坡信号的一个或多个斜率成正比。结果，可编程信号产生电路基于期望的第一频率来补偿频率误差。

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