专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 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。

2. 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。

3. 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。

4. 发明申请

US20120218032A1 HIGH EFFICIENCY NEGATIVE REGULATED CHARGE-PUMP 失效
标题翻译：高效率负调节充电泵
公开(公告)号：US20120218032A1
公开(公告)日：2012-08-30
申请号：US13105012
申请日：2011-05-11
申请人： Praveen Varma Nadimpalli
发明人： Praveen Varma Nadimpalli
IPC分类号： G05F3/02
CPC分类号： H02M3/073 , H02M2003/071
摘要： A charge-pump circuit for providing a regulated negative voltage is disclosed. The charge-pump circuit includes at least one flying capacitor stage having a capacitor with a first terminal selectively coupled between a negative voltage input through a first electronic switch and a negative voltage output through a second electronic switch. A second terminal of the capacitor is selectively coupled between a fixed voltage node through a third electronic switch and an error signal input through a fourth electronic switch. A positive voltage source is coupled to the negative voltage output through a feedback network. A feedback amplifier having an error signal output, a reference voltage input, and a feedback input is coupled to the feedback network. A switch controller having a first clock output drives the first electronic switch and the third electronic switch, while a second clock output drives the second electronic switch and the fourth electronic switch.
摘要翻译：公开了一种用于提供调节负电压的电荷泵电路。电荷泵电路包括至少一个具有电容器的电容器级，其具有选择性地耦合在通过第一电子开关输入的负电压和通过第二电子开关输出的负电压之间的第一端子。电容器的第二端子通过第三电子开关选择性地耦合在固定电压节点和通过第四电子开关输入的误差信号之间。正电压源通过反馈网络耦合到负电压输出。具有误差信号输出的反馈放大器，参考电压输入和反馈输入耦合到反馈网络。具有第一时钟输出的开关控制器驱动第一电子开关和第三电子开关，而第二时钟输出驱动第二电子开关和第四电子开关。

5. 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。

6. 发明授权

US08344793B2 Method of generating multiple current sources from a single reference resistor 有权
标题翻译：从单个参考电阻产生多个电流源的方法
公开(公告)号：US08344793B2
公开(公告)日：2013-01-01
申请号：US13036479
申请日：2011-02-28
申请人： Praveen Varma Nadimpalli , Pradeep Charles Silva
发明人： Praveen Varma Nadimpalli , Pradeep Charles Silva
IPC分类号： G05F1/10 , G05F3/02
CPC分类号： G05F3/242
摘要： A differential voltage controlled current source generating one or more output currents is based upon a single external resistor. The differential voltage controlled current source may generate an output current that is proportional to a received differential voltage and a bias current with the use of a single external resistor. The technique may be used to generate multiple accurate and process independent current sources. The current sources may be a zero temperature coefficient (ZTC) current, a proportional to absolute temperature (PTAT) current, or an inversely proportional to absolute temperature (NTAT) current. The output of the current sources may be inversely proportional to the resistance of the external resistor.
摘要翻译：产生一个或多个输出电流的差分电压控制电流源基于单个外部电阻器。差分电压控制电流源可以产生与使用单个外部电阻器的接收到的差分电压和偏置电流成比例的输出电流。该技术可用于生成多个准确和流程独立的电流源。电流源可以是零温度系数（ZTC）电流，与绝对温度（PTAT）电流成比例，或与绝对温度（NTAT）电流成反比。电流源的输出可能与外部电阻的电阻成反比。

7. 发明申请

US20120049903A1 LOW NOISE CHARGE PUMP 审中-公开
标题翻译：低噪声充电泵
公开(公告)号：US20120049903A1
公开(公告)日：2012-03-01
申请号：US13045657
申请日：2011-03-11
申请人： Wonseok Oh , Praveen Varma Nadimpalli
发明人： Wonseok Oh , Praveen Varma Nadimpalli
IPC分类号： H03K3/01
CPC分类号： H03K3/84 , H02M1/44 , H02M3/07 , H02M2001/0012
摘要： A delta-sigma modulator is used to generate a dithered clock. The dithered clock is provided as a switching signal to a charge pump to create an output voltage having a reduced noise spectrum. The charge pump may be a regulated charge pump, an unregulated charge pump, a buck charge pump, a boost charge pump, a single phase charge pump, a multi-phase charge pump, or a combination thereof.
摘要翻译： Δ-Σ调制器用于产生抖动时钟。抖动时钟作为开关信号提供给电荷泵，以产生具有降低的噪声谱的输出电压。电荷泵可以是调节电荷泵，不稳定电荷泵，降压电荷泵，升压电荷泵，单相电荷泵，多相电荷泵或其组合。

8. 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。

9. 发明申请

US20120218026A1 METHOD OF GENERATING MULTIPLE CURRENT SOURCES FROM A SINGLE REFERENCE RESISTOR 有权
标题翻译：从单个参考电阻产生多个电流源的方法
公开(公告)号：US20120218026A1
公开(公告)日：2012-08-30
申请号：US13036479
申请日：2011-02-28
申请人： Praveen Varma Nadimpalli , Pradeep Charles Silva
发明人： Praveen Varma Nadimpalli , Pradeep Charles Silva
IPC分类号： H03K17/78 , G05F1/10
CPC分类号： G05F3/242
摘要： A differential voltage controlled current source generating one or more output currents is based upon a single external resistor. The differential voltage controlled current source may generate an output current that is proportional to a received differential voltage and a bias current with the use of a single external resistor. The technique may be used to generate multiple accurate and process independent current sources. The current sources may be a zero temperature coefficient (ZTC) current, a proportional to absolute temperature (PTAT) current, or an inversely proportional to absolute temperature (NTAT) current. The output of the current sources may be inversely proportional to the resistance of the external resistor.
摘要翻译：产生一个或多个输出电流的差分电压控制电流源基于单个外部电阻器。差分电压控制电流源可以产生与使用单个外部电阻器的接收到的差分电压和偏置电流成比例的输出电流。该技术可用于生成多个准确和流程独立的电流源。电流源可以是零温度系数（ZTC）电流，与绝对温度（PTAT）电流成比例，或与绝对温度（NTAT）电流成反比。电流源的输出可能与外部电阻的电阻成反比。

10. 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。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式