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1. 发明申请

US20160028355A1 DYNAMIC CURRENT SOURCE FOR AMPLIFIER INTEGRATOR STAGES 有权
标题翻译：放大器积分器阶段的动态电流源
公开(公告)号：US20160028355A1
公开(公告)日：2016-01-28
申请号：US14341364
申请日：2014-07-25
申请人： Sandro HERRERA
发明人： Sandro HERRERA
IPC分类号： H03F3/45
CPC分类号： H03F1/307 , H03F3/301 , H03F3/3069 , H03F3/345 , H03F2200/264 , H03F2203/30015 , H03F2203/30036 , H03F2203/30061 , H03F2203/30063
摘要： An amplifier system may include a current source, an impedance element responsive to a current change, and a feedback controller generating a control signal based on impedance element response. Current source may supply current to a pair of output elements, one of which being controlled by an integrator, and a portion of the integrator. Impedance element may have terminals coupled to inputs of the output elements and may be configured to experience a change in voltage based on a change in current supplied to its input. Feedback controller may have a pair of inputs coupled to the terminals of impedance element and an output to control the current source based on a detected change in voltage across the impedance element. Current source may be varied based on the control signal to maintain a constant current supplied to the input of the impedance elements.
摘要翻译：放大器系统可以包括电流源，响应于电流变化的阻抗元件以及基于阻抗元件响应产生控制信号的反馈控制器。电流源可以向一对输出元件提供电流，其中一个输出元件由积分器和积分器的一部分控制。阻抗元件可以具有耦合到输出元件的输入的端子，并且可以被配置为基于提供给其输入的电流的变化而经历电压的变化。反馈控制器可以具有耦合到阻抗元件的端子的一对输入和基于检测到的阻抗元件两端的电压变化来控制电流源的输出。电流源可以基于控制信号而变化，以保持提供给阻抗元件的输入端的恒定电流。

2. 发明授权

US08803596B2 Differential source follower having 6dB gain with applications to WiGig baseband filters 有权
标题翻译：具有6dB增益的差分源极跟随器应用于WiGig基带滤波器
公开(公告)号：US08803596B2
公开(公告)日：2014-08-12
申请号：US14053189
申请日：2013-10-14
申请人： Tensorcom, Inc.
发明人： Zaw Soe
IPC分类号： H03H11/12 , H03F3/45 , H03F3/50 , H03H3/00 , H03F3/195 , H03F3/30
CPC分类号： H03H11/1217 , H03F3/195 , H03F3/301 , H03F3/45179 , H03F3/505 , H03F2203/45528 , H03F2203/45544 , H03F2203/45594 , H03H3/00
摘要： Sallen-Key filters require an operational amplifier with a large input impedance and a small output impedance to meet the external filter characteristics. This invention eliminates the need for internal feedback path for stability and increases the gain of a source follower which has characteristics matching the operational amplifier in the Sallen-Key filter. The source follower provides 6 dB of AC voltage gain and is substituted for the operational amplifier in the Sallen-Key filter. The Sallen-Key filter requires a differential configuration to generate all the required signals with their complements and uses these signals in a feed forward path. Furthermore, since the source follower uses only two n-channel stacked devices, the headroom voltage is maximized to several hundred millivolts for a 1.2V voltage supply in a 40 nm CMOS technology. Thus, the required 880 MHz bandwidth of the Sallen-Key filter can be easily met using the innovative source follower.
摘要翻译： Sallen-Key滤波器需要具有大输入阻抗和小输出阻抗的运算放大器，以满足外部滤波器特性。本发明消除了对于稳定性的内部反馈路径的需要，并增加了具有与Sallen-Key滤波器中的运算放大器匹配的特性的源极跟随器的增益。源极跟随器提供6 dB的交流电压增益，并代替Sallen-Key滤波器中的运算放大器。 Sallen-Key滤波器需要一个差分配置，以便产生所有需要的信号及其补码，并在前馈路径中使用这些信号。此外，由于源极跟随器仅使用两个n沟道堆叠器件，因此在40nm CMOS技术中1.2V电压源的裕量电压最大可达数百毫伏。因此，Sallen-Key滤波器所需的880 MHz带宽可以使用创新的源跟踪器轻松实现。

3. 发明授权

US08674755B2 Differential source follower having 6dB gain with applications to WiGig baseband filters 有权
标题翻译：具有6dB增益的差分源极跟随器应用于WiGig基带滤波器
公开(公告)号：US08674755B2
公开(公告)日：2014-03-18
申请号：US13916535
申请日：2013-06-12
申请人： Tensorcom, Inc.
发明人： Zaw Soe
IPC分类号： H03F3/45
CPC分类号： H03H11/1217 , H03F3/195 , H03F3/301 , H03F3/45179 , H03F3/505 , H03F2203/45528 , H03F2203/45544 , H03F2203/45594 , H03H3/00
摘要： A differential amplifier comprising a first upper device and a first lower device series coupled between two power supplies and a second upper device and a second lower device series coupled between the two power supplies. A first DC voltage enables the first upper device and the second upper device and a second DC voltage regulates current flow in the first lower device and the second lower device. An AC signal component is coupled to the first upper device and the second lower device while the AC signal complement is coupled to the first lower device and the second upper device. Separate RC networks couple the AC signals to their respective device. A first and second output signal forms between the upper device and the lower device, respectively. All the devices are same channel type.
摘要翻译：一种差分放大器，包括耦合在两个电源之间的第一上部装置和第一下部装置系列，以及耦合在两个电源之间的第二上部装置和第二下部装置。第一直流电压使得第一上部装置和第二上部装置能够和第二直流电压调节第一下部装置和第二下部装置中的电流。当AC信号补码耦合到第一下部装置和第二上部装置时，AC信号分量耦合到第一上部装置和第二下部装置。单独的RC网络将AC信号耦合到其相应的设备。分别在上部装置和下部装置之间形成第一和第二输出信号。所有设备的通道类型相同。

4. 发明申请

US20130285746A1 Differential Source Follower having 6dB Gain with Applications to WiGig Baseband Filters 有权
标题翻译：差分源跟随器具有6dB增益，可应用于WiGig基带滤波器
公开(公告)号：US20130285746A1
公开(公告)日：2013-10-31
申请号：US13916535
申请日：2013-06-12
申请人： Tensorcom, Inc.
发明人： Zaw Soe
IPC分类号： H03F3/45
CPC分类号： H03H11/1217 , H03F3/195 , H03F3/301 , H03F3/45179 , H03F3/505 , H03F2203/45528 , H03F2203/45544 , H03F2203/45594 , H03H3/00
摘要： A differential amplifier comprising a first upper device and a first lower device series coupled between two power supplies and a second upper device and a second lower device series coupled between the two power supplies. A first DC voltage enables the first upper device and the second upper device and a second DC voltage regulates current flow in the first lower device and the second lower device. An AC signal component is coupled to the first upper device and the second lower device while the AC signal complement is coupled to the first lower device and the second upper device. Separate RC networks couple the AC signals to their respective device. A first and second output signal forms between the upper device and the lower device, respectively. All the devices are same channel type.
摘要翻译：一种差分放大器，包括耦合在两个电源之间的第一上部装置和第一下部装置系列，以及耦合在两个电源之间的第二上部装置和第二下部装置。第一直流电压使得第一上部装置和第二上部装置能够和第二直流电压调节第一下部装置和第二下部装置中的电流。当AC信号补码耦合到第一下部装置和第二上部装置时，AC信号分量耦合到第一上部装置和第二下部装置。单独的RC网络将AC信号耦合到其相应的设备。分别在上部装置和下部装置之间形成第一和第二输出信号。所有设备的通道类型相同。

5. 发明申请

US20130093517A1 Buffer Amplifier 有权
标题翻译：缓冲放大器
公开(公告)号：US20130093517A1
公开(公告)日：2013-04-18
申请号：US13692703
申请日：2012-12-03
申请人： Chi Ming John LAM
发明人： Chi Ming John LAM
IPC分类号： H03F3/45
CPC分类号： H03F3/45071 , A23V2002/00 , A61K31/198 , A61K31/205 , A61K31/40 , A61K31/4045 , A61K31/405 , A61K31/4415 , A61K31/519 , A61K31/675 , A61K31/7056 , A61K31/714 , H03F3/301 , H03F3/3069 , A61K2300/00 , A23V2200/32 , A23V2250/706 , A23V2250/7052 , A23V2250/7056 , A23V2250/0632
摘要： A buffer amplifier with unity voltage gain, high input impedance, high speed, high current gain, high output power and low offset includes three stages and a DC servo circuit. The first stage of the buffer amplifier contains complementary N-channel and P-channel MOSFET source followers that provide high input impedance to buffer the input signal source. A feedback DC servo signal is provided to correct the subsequent stages so as to maintain the output at virtual DC ground level. The second stage is a driver stage that also contains complementary N-channel and P-channel MOSFET source followers to provide sufficient current to drive the output stage. The last stage is an output stage that contains at least one pair of complementary power MOSFETs or BJTs to deliver high currents to a load.
摘要翻译：具有单位电压增益，高输入阻抗，高速度，高电流增益，高输出功率和低失调的缓冲放大器包括三级和直流伺服电路。缓冲放大器的第一级包含互补的N沟道和P沟道MOSFET源极跟随器，提供高输入阻抗来缓冲输入信号源。提供反馈DC伺服信号以校正后续级，以便将输出保持在虚拟DC接地电平。第二级是驱动器级，其还包含互补的N沟道和P沟道MOSFET源极跟随器，以提供足够的电流来驱动输出级。最后一个阶段是包含至少一对互补功率MOSFET或BJT以输出高电流到负载的输出级。

6. 发明申请

US20090295484A1 Low Bias Current Amplifier 有权
标题翻译：低偏置电流放大器
公开(公告)号：US20090295484A1
公开(公告)日：2009-12-03
申请号：US12473978
申请日：2009-05-28
申请人： Wei-Chung Wu , Lin Chen , Yuan Gu , Kae Ann Wong
发明人： Wei-Chung Wu , Lin Chen , Yuan Gu , Kae Ann Wong
IPC分类号： H03F3/16
CPC分类号： H03F3/45183 , H03F1/0205 , H03F3/301 , H03F2203/45648
摘要： An amplifier is provided that includes an output portion that sources and sinks current associated with an output load and an amplification portion that is biased by a relatively small bias current with respect to an output current of the amplifier. The amplification portion provides an amplified output signal to the output portion. The amplifier further comprises at least one impedance component coupled between the output portion and the amplification portion to alter at least one pole associated with the amplifier to mitigate instability of the amplifier related to the relatively small bias current.
摘要翻译：提供了一种放大器，其包括输出部分，其输出和吸收与输出负载相关联的电流以及相对于放大器的输出电流被相对小的偏置电流偏置的放大部分。放大部分向输出部分提供放大的输出信号。放大器还包括耦合在输出部分和放大部分之间的至少一个阻抗分量，以改变与放大器相关联的至少一个极点，以减轻与相对小的偏置电流相关的放大器的不稳定性。

7. 发明授权

US07449946B1 High voltage, high current, and high accuracy amplifier 失效
标题翻译：高电压，高电流和高精度放大器
公开(公告)号：US07449946B1
公开(公告)日：2008-11-11
申请号：US12111056
申请日：2008-04-28
申请人： D. Robert Hoover
发明人： D. Robert Hoover
IPC分类号： H03F1/26
CPC分类号： H03F3/211 , H03F1/3211 , H03F1/3247 , H03F3/301 , H03F3/3069 , H03F3/45376 , H03F3/45381 , H03F3/45475 , H03F2200/03 , H03F2200/45 , H03F2200/541 , H03F2201/3233 , H03F2203/45138 , H03F2203/45392
摘要： A method and system to use voltage isolated and floating differential output amplifiers wired in series and parallel to achieve arbitrary output drive voltage and current for the applications load. Embodiments use multiple voltage-isolated and linearized devices to enable dynamically modifiable, Class A, Class B, and Class AB topologies of predetermined voltage and current performance. Embodiments can correct an output by linearizing one or more devices in a circuit by utilizing a linearization module (e.g., including one or more digital lookup tables, an error simulation circuit, or an equivalent) to linearize at least one parameter of at least one device in the circuit.
摘要翻译：使用电压隔离和浮动差分输出放大器串联和并联的方法和系统，以实现应用负载的任意输出驱动电压和电流。实施例使用多个电压隔离和线性化的装置来实现具有预定电压和电流性能的动态可修改的A类，B类和AB类拓扑。实施例可以通过利用线性化模块（例如，包括一个或多个数字查找表，错误模拟电路或等效物）对电路中的一个或多个设备进行线性化来校正输出，以将至少一个设备的至少一个参数线性化在电路中。

8. 发明授权

US07365605B1 High voltage, high current, and high accuracy amplifier 失效
标题翻译：高电压，高电流和高精度放大器
公开(公告)号：US07365605B1
公开(公告)日：2008-04-29
申请号：US11325884
申请日：2006-01-04
申请人： D. Robert Hoover
发明人： D. Robert Hoover
IPC分类号： H03F3/04
CPC分类号： H03F3/211 , H03F1/3211 , H03F1/3247 , H03F3/301 , H03F3/3069 , H03F3/45376 , H03F3/45381 , H03F3/45475 , H03F2200/03 , H03F2200/45 , H03F2200/541 , H03F2201/3233 , H03F2203/45138 , H03F2203/45392
摘要： A method and system to use voltage isolated and floating differential output amplifiers wired in series and parallel to achieve arbitrary output drive voltage and current for the applications load. A second embodiment uses multiple matched voltage-isolated and floating differential output amplifiers in a single chassis to enable selection between a multi-channel amplifier and a high current and/or high voltage mono amplifier. A third embodiment uses a step-up transformer and paralleled unity-gain buffer amplifiers, on input and/or output stages, to produce a zero feedback, high performance, high drive amplifier. A fourth embodiment uses a high voltage unity-gain driver amplifier to bias a unity-gain buffer amplifier and its power supply to achieve an ultra low distortion high voltage buffer amplifier. A fifth embodiment uses multiple voltage-isolated and linearized devices to enable dynamically modifiable, Class A, Class B, and Class AB topologies of predetermined voltage and current performance. A sixth embodiment corrects an output by linearizing one or more devices in a circuit by utilizing a linearization module (e.g., including one or more digital lookup tables, an error simulation circuit, or an equivalent) to linearize at least one parameter of at least one device in the circuit.
摘要翻译：使用电压隔离和浮动差分输出放大器串联和并联的方法和系统，以实现应用负载的任意输出驱动电压和电流。第二实施例在单个机箱中使用多个匹配的电压隔离和浮动差分输出放大器以使得能够在多通道放大器和高电流和/或高电压单声道放大器之间进行选择。第三实施例在输入和/或输出级上使用升压变压器和并联单位增益缓冲放大器来产生零反馈，高性能，高驱动放大器。第四实施例使用高电压单位增益驱动放大器来偏置单位增益缓冲放大器及其电源，以实现超低失真高电压缓冲放大器。第五实施例使用多个电压隔离和线性化的装置来实现具有预定电压和电流性能的动态可修改的A类，B类和AB类拓扑。第六实施例通过利用线性化模块（例如，包括一个或多个数字查找表，错误模拟电路或等效物）对电路中的一个或多个设备进行线性化来校正输出，以将至少一个参数线性化设备在电路中。

9. 发明授权

US07196555B2 Apparatus and method for voltage conversion 有权
标题翻译：电压转换装置及方法
公开(公告)号：US07196555B2
公开(公告)日：2007-03-27
申请号：US10957319
申请日：2004-09-30
申请人： Stewart S. Taylor
发明人： Stewart S. Taylor
IPC分类号： H03K1/00
CPC分类号： H03F3/301 , G05F3/262 , H03F1/32 , H03F3/347 , H03F3/45475 , H03F2203/45288
摘要： An apparatus includes an input port, an output port, a resistor, and a current amplifier. The current amplifier includes an input circuit and an output circuit. The resistor is coupled to the input port. The input circuit is coupled to the resistor and the output circuit. The output circuit is coupled to the output port, the input circuit and the output circuit. The input circuit and output circuit have substantially identical topologies. A method includes receiving an input voltage signal, converting the input voltage signal to a current signal, and processing the current signal to form a feedback signal and an output current signal that is a substantially linear representation of the input voltage signal.
摘要翻译：一种装置包括输入端口，输出端口，电阻器和电流放大器。电流放大器包括输入电路和输出电路。电阻器耦合到输入端口。输入电路耦合到电阻和输出电路。输出电路耦合到输出端口，输入电路和输出电路。输入电路和输出电路具有基本相同的拓扑结构。一种方法包括接收输入电压信号，将输入电压信号转换为电流信号，以及处理电流信号以形成反馈信号和作为输入电压信号的基本线性表示的输出电流信号。

10. 发明申请

US20060208800A1 Biasing stage for an amplifier 有权
公开(公告)号：US20060208800A1
公开(公告)日：2006-09-21
申请号：US11378029
申请日：2006-03-15
申请人： Jefferson Harman
发明人： Jefferson Harman
IPC分类号： H03F3/26
CPC分类号： H03F3/3069 , H03F1/30 , H03F1/301 , H03F1/307 , H03F1/308 , H03F3/301 , H03F3/3435
摘要： An amplifier biasing stage includes a transistor that provides a biasing signal for a complementary pair of field-effect transistors included in an output stage of an amplifier. The amplifier biasing stage also includes one resistive element connected to an emitter of the transistor, another resistive element connected to a base of the transistor, and still another resistive element connected to a collector of the transistor. The respective resistances of the resistive elements are selected to substantially match a voltage provided by the amplifier biasing stage to a gate-to-source voltage of the complementary pair of field-effect transistors. The resistances of the resistive elements are also selected to substantially match a temperature coefficient of the amplifier biasing stage to a temperature coefficient of the complimentary pair of field-effect transistors.

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