-
1.发明授权Push-pull low noise amplifier with variable gain, push-pull low noise amplifier with common gate bias circuit and amplifier with auxiliary matching 有权具有可变增益的推挽低噪声放大器，具有公共栅极偏置电路的推挽低噪声放大器和具有辅助匹配的放大器公开(公告)号：US08441318B2
公开(公告)日：2013-05-14
申请号：US13109000
申请日：2011-05-17
申请人： Ming-Da Tsai , Yu-Hsin Lin
发明人： Ming-Da Tsai , Yu-Hsin Lin
IPC分类号： H03F3/45
CPC分类号： H03F3/3022 , H03F3/45179 , H03F3/45242 , H03F3/45475 , H03F3/72 , H03F2200/294 , H03F2203/45386 , H03F2203/45521 , H03F2203/7236 , H03G1/0088
摘要： A push-pull low noise amplifier (LNA) includes at least one amplifier block. Each amplifier block includes a bypass stage and at least one gain cell. The bypass stage has a first node and a second node. The gain cell has an input terminal and an output terminal, comprising a loading stage and a driving stage. When the push-pull LNA is in a first gain mode, the loading stage is enabled and the bypassing stage is disabled; and when the push-pull LNA is in a second gain mode, the loading stage is disabled and the bypassing stage is enabled.
摘要翻译： 推挽式低噪声放大器（LNA）包括至少一个放大器块。 每个放大器块包括旁路级和至少一个增益单元。 旁路级具有第一节点和第二节点。 增益单元具有输入端子和输出端子，包括负载级和驱动级。 当推挽LNA处于第一增益模式时，加载阶段被使能，旁路级被禁止; 并且当推挽LNA处于第二增益模式时，加载阶段被禁用并且旁路级被使能。
-
公开(公告)号：US08143869B2
公开(公告)日：2012-03-27
申请号：US12581154
申请日：2009-10-18
申请人： Ming-Da Tsai
发明人： Ming-Da Tsai
IPC分类号： G05F1/00
CPC分类号： G05F1/56
摘要： A circuit for providing an output voltage substantially equal to a reference voltage includes: a low drop-out (LDO) regulator coupled to the reference voltage for producing the output voltage at an output terminal; a reference current source having a first end and a second end for providing a predetermined reference current; a first transistor having a first terminal coupled to a first supply voltage, a second terminal, and a control terminal coupled to the second terminal of the first transistor; a first switch for selectively coupling the second terminal of the first transistor to the first end of the reference current source according to a first control signal; and a second transistor having a first terminal coupled to the first supply voltage, a control terminal coupled to the control terminal of the first transistor, and a second terminal coupled to the output terminal.
摘要翻译： 用于提供基本上等于参考电压的输出电压的电路包括：耦合到参考电压的低输出（LDO）调节器，用于在输出端产生输出电压; 具有用于提供预定参考电流的第一端和第二端的参考电流源; 第一晶体管，具有耦合到第一电源电压的第一端子，第二端子和耦合到第一晶体管的第二端子的控制端子; 第一开关，用于根据第一控制信号选择性地将第一晶体管的第二端子耦合到参考电流源的第一端; 以及第二晶体管，具有耦合到第一电源电压的第一端子，耦合到第一晶体管的控制端子的控制端子和耦合到输出端子的第二端子。
-
公开(公告)号：US20100244969A1
公开(公告)日：2010-09-30
申请号：US12413687
申请日：2009-03-30
申请人： Ming-Da Tsai , Ling-Wei Ke
发明人： Ming-Da Tsai , Ling-Wei Ke
IPC分类号： H03L1/02
摘要： A temperature compensated oscillation circuit capable of providing a stable frequency output over temperature is provided, in which an oscillator with a crystal resonator is arranged to generate an oscillation signal with an output frequency, and a temperature sensor provides a temperature compensation voltage of which a function is linear with respect to an ambient temperature of the oscillator. A first accumulation mode MOS varactor is coupled to the oscillator, and the first accumulation mode MOS varactor adjusts a capacitance thereof in response to the temperature compensation voltage, such that the coupled oscillator has a frequency compensation over temperature for the oscillation signal, wherein the frequency compensation substantially varies as an inverse function of a deviation of the crystal resonator over temperature when the ambient temperature is within a predetermined temperature range.
摘要翻译： 提供能够提供温度稳定的频率输出的温度补偿振荡电路，其中具有晶体谐振器的振荡器被布置成产生具有输出频率的振荡信号，并且温度传感器提供具有功能的温度补偿电压 相对于振荡器的环境温度是线性的。 第一累积模式MOS变容二极管耦合到振荡器，并且第一累积模式MOS变容二极管响应于温度补偿电压来调节其电容，使得耦合振荡器对于振荡信号具有对温度的频率补偿，其中频率 当环境温度在预定温度范围内时，补偿作为晶体谐振器与温度的偏差的反函数基本上变化。
-
公开(公告)号：US20100195767A1
公开(公告)日：2010-08-05
申请号：US12758149
申请日：2010-04-12
申请人： Ming-Da Tsai , Yen-Horng Chen
发明人： Ming-Da Tsai , Yen-Horng Chen
IPC分类号： H04L27/14
CPC分类号： H03D7/1441 , H03D7/1433 , H03D7/1458
摘要： A dynamic current steering mixer. The dynamic current steering mixer comprises a Gilbert cell mixer core, a pair of load devices, a dynamic current steering cell, and a transconductor cell. The Gilbert cell mixer core has first and second nodes, receives a first differential input signal, and provides a differential output signal at the first nodes thereof. The load devices are respectively coupled between the first nodes of the Gilbert cell mixer core and a first fixed voltage. The dynamic current steering cell has third nodes coupled to the second nodes and fourth nodes. The transconductor cell is coupled between the fourth nodes and a second fixed voltage and receives a second differential input signal. The dynamic current steering cell alternately steers current of the transconductor cell to or away from the Gilbert cell mixer core.
摘要翻译： 动态电流转向搅拌机。 动态电流转向混合器包括吉尔伯特单元混频器内核，一对负载装置，动态电流导向单元和跨导电池。 吉尔伯特单元混频器内核具有第一和第二节点，接收第一差分输入信号，并在其第一个节点处提供差分输出信号。 负载设备分别耦合在吉尔伯特单元混频器核心的第一节点和第一固定电压之间。 动态电流导向单元具有耦合到第二节点和第四节点的第三节点。 跨导电池耦合在第四节点和第二固定电压之间并且接收第二差分输入信号。 动态电流导向单元交替地将跨导电池的电流转向或离开吉尔伯特电池混频器核心。
-
公开(公告)号：US07719327B2
公开(公告)日：2010-05-18
申请号：US11674273
申请日：2007-02-13
申请人： Ming-Da Tsai
发明人： Ming-Da Tsai
IPC分类号： H03B19/06
摘要： A frequency divider has an inverting unit and a plurality of switch inverters in series. Each switch inverter comprises two inphase switches and is controlled by a clock. The two inphase switches of each switch inverter are respectively supplied by a first voltage and a second voltage, while any two switch inverters in series are respectively controlled by two inverted clocks. The two inphase switches are selectively turned on and off synchronously.
摘要翻译： 分频器具有反相单元和串联的多个开关变换器。 每个开关逆变器包括两个同相开关并由时钟控制。 每个开关逆变器的两个同相开关分别由第一电压和第二电压提供，而串联的任何两个开关逆变器分别由两个反相时钟控制。 两个同相开关同时选择性地打开和关闭。
-
公开(公告)号：US20080248775A1
公开(公告)日：2008-10-09
申请号：US11697347
申请日：2007-04-06
申请人： Ming-Da Tsai , Yen-Horng Chen
发明人： Ming-Da Tsai , Yen-Horng Chen
IPC分类号： H04B1/26
CPC分类号： H03D7/1441 , H03D7/1433 , H03D7/1458
摘要： A dynamic current steering mixer. The dynamic current steering mixer comprises a Gilbert cell mixer core, a pair of load devices, a dynamic current steering cell, and a transconductor cell. The Gilbert cell mixer core has first and second nodes, receives a first differential input signal, and provides a differential output signal at the first nodes thereof. The load devices are respectively coupled between the first nodes of the Gilbert cell mixer core and a first fixed voltage. The dynamic current steering cell has third nodes coupled to the second nodes and fourth nodes. The transconductor cell is coupled between the fourth nodes and a second fixed voltage and receives a second differential input signal. The dynamic current steering cell alternately steers current of the transconductor cell to or away from the Gilbert cell mixer core.
摘要翻译： 动态电流转向搅拌机。 动态电流转向混合器包括吉尔伯特单元混频器内核，一对负载装置，动态电流导向单元和跨导电池。 吉尔伯特单元混频器内核具有第一和第二节点，接收第一差分输入信号，并在其第一个节点处提供差分输出信号。 负载设备分别耦合在吉尔伯特单元混频器核心的第一节点和第一固定电压之间。 动态电流导向单元具有耦合到第二节点和第四节点的第三节点。 跨导电池耦合在第四节点和第二固定电压之间并且接收第二差分输入信号。 动态电流导向单元交替地将跨导电池的电流转向或离开吉尔伯特电池混频器核心。
-
公开(公告)号：US20080191755A1
公开(公告)日：2008-08-14
申请号：US11674273
申请日：2007-02-13
申请人： Ming-Da Tsai
发明人： Ming-Da Tsai
IPC分类号： H03B19/12
摘要： A frequency divider has an inverting unit and a plurality of switch inverters in series. Each switch inverter comprises two inphase switches and is controlled by a clock. The two inphase switches of each switch inverter are respectively supplied by a first voltage and a second voltage, while any two switch inverters in series are respectively controlled by two inverted clocks. The two inphase switches are selectively turned on and off synchronously.
摘要翻译： 分频器具有反相单元和串联的多个开关变换器。 每个开关逆变器包括两个同相开关并由时钟控制。 每个开关逆变器的两个同相开关分别由第一电压和第二电压提供，而串联的任何两个开关逆变器分别由两个反相时钟控制。 两个同相开关同时选择性地打开和关闭。
-
公开(公告)号：US20080030278A1
公开(公告)日：2008-02-07
申请号：US11603222
申请日：2006-11-22
申请人： Shih-Chieh Shin , Ming-Da Tsai , Huei Wang
发明人： Shih-Chieh Shin , Ming-Da Tsai , Huei Wang
CPC分类号： H03F3/605 , H03F1/56 , H03F3/191 , H03F2200/108 , H03F2200/387 , H03F2200/451 , H03F2200/75
摘要： A distributed amplifier is disclosed herein, which includes a signal amplification unit amplifying a RF input signal fed into the RF signal, a first biasing circuit providing a direct current (DC) bias signal, a second biasing circuit providing a DC bias signal, the variable terminal resistance providing an adjustable resistance, a RF signal input terminal provided for input of the RF input signal and a RF signal output terminal for output of a RF output signal. The output RF signal from the distributed amplifier is obtained from a gained version of the input RF signal. Since a load mismatch issue is compensated, a gain flatness issue is considerably improved and thus a gain-adjustable range is increased with respect to the distributed amplifier.
-
公开(公告)号：US09231549B2
公开(公告)日：2016-01-05
申请号：US13380511
申请日：2009-08-10
CPC分类号： H03H7/20
摘要： A phase shifter and related load device are provided. The phase shifter includes a phase shifter core and load devices. The phase shifter core has an input port for receiving an input signal, an output port for outputting an output signal, and connection ports. The load devices are coupled to the connection ports, respectively. At least one of the load devices includes first varactor units each having a first node and a second node, where first nodes of the first varactor units are coupled to a first voltage, second nodes of the first varactor units are respectively coupled to a plurality of second voltages, and the second voltages include at least two voltages different from each other. The phase shifter and related load device are capable of mitigating effects resulted from varactor's non-linear C-V curve.
摘要翻译： 提供了一种移相器和相关负载装置。 移相器包括移相器核和负载装置。 移相器核具有用于接收输入信号的输入端口，用于输出输出信号的输出端口和连接端口。 负载设备分别耦合到连接端口。 负载装置中的至少一个包括第一变容二极管单元，每个变容二极管单元具有第一节点和第二节点，其中第一变容二极管单元的第一节点耦合到第一电压，第一变容二极管单元的第二节点分别耦合到多个 第二电压，第二电压包括彼此不同的至少两个电压。 移相器和相关的负载装置能够减轻变容二极管非线性C-V曲线产生的影响。
-
10.发明授权Signal processing apparatus having frequency-selective circuit with mixer module implemented for controlling frequency response and related method thereof 有权具有实施用于控制频率响应的混频器模块的频率选择电路的信号处理装置及其相关方法公开(公告)号：US08391823B2
公开(公告)日：2013-03-05
申请号：US13039322
申请日：2011-03-03
申请人： Ming-Da Tsai
发明人： Ming-Da Tsai
IPC分类号： H04B1/26
摘要： A method of setting filtering characteristic of a signal processing apparatus includes following steps: configuring a first signal processing path, included in the signal processing apparatus and electrically connected to a signal input port of the signal processing apparatus, to have a first filtering characteristic; and configuring a second signal processing path, included in the signal processing apparatus and electrically connected between the signal input port and the first signal processing path, to have a second filtering characteristic different from the first filtering characteristic. When an input signal received at the signal input port includes a first signal component with a first frequency and a second signal component with a second frequency, most of the first signal component is processed by the first signal processing path, and most of the second signal component is processed by the second signal processing path.
摘要翻译： 一种设置信号处理装置的滤波特性的方法包括以下步骤：配置包括在信号处理装置中并电连接到信号处理装置的信号输入端口的第一信号处理路径以具有第一滤波特性; 以及配置包括在信号处理装置中并电连接在信号输入端口和第一信号处理路径之间的第二信号处理路径，以具有与第一滤波特性不同的第二滤波特性。 当在信号输入端口处接收的输入信号包括具有第一频率的第一信号分量和具有第二频率的第二信号分量时，第一信号分量的大部分由第一信号处理路径处理，大部分第二信号 分量由第二信号处理路径处理。
-
-
-
-
-
-
-
-
-
搜索结果
27 条记录 (耗时 0.022 秒)