公开(公告)号：US06304152B1

公开(公告)日：2001-10-16

申请号：US09628356

申请日：2000-07-28

Applicant: Yutaka Takahashi ,  Kouji Nakamura

Inventor： Yutaka Takahashi ,  Kouji Nakamura

IPC: H03B536

CPC classification number: H03B5/364 ,  H03B2201/025 ,  H03J2200/10

Abstract: The Colpitts circuit is configured so that an equivalent capacitance of the voltage-dividing first and second capacitors connected in series through the output of the transistor amplifier is variable under the condition that the ratio of the capacitance of the first capacitor to that of the second capacitor is kept unchanged at a prescribed value. The first and second capacitors are, as a whole, configured as a matrix of elemental capacitors with 2 rows and a plural number n of columns, an array of the elemental capacitors in the first row being allotted to the first capacitor and an array of the elemental capacitors in the second row being allotted to the second capacitor. Two elemental capacitors in each column j (j=1, 2, . . . n) are connected in series and the ratio of the capacitance of the elemental capacitor corresponding to the 1j element of the matrix to the capacitance of the elemental capacitor corresponding to the 2j element has the prescribed value. The Colpitts circuit further has a first switch and a second switch allotted to each of the columns. Each of the elemental capacitors allocated to the first row is connected to the control electrode of the transistor amplifier through the first switch, and the junction of the two elemental capacitors allocated to each column is connected to the output of said transistor amplifier through the second switch. The first and second switches are operated synchronously for every column.

Abstract translation: Colpitts电路被配置为使得通过晶体管放大器的输出串联连接的分压第一和第二电容器的等效电容在第一电容器的电容与第二电容器的电容的比率 保持在规定值不变。 作为整体，第一和第二电容器被配置为具有2行和多个n列的元素电容器的矩阵，第一行中的元件电容器的阵列被分配给第一电容器，并且阵列的 第二排中的元素电容器被分配给第二电容器。 每列j（j = 1,2，...）中的两个元素电容器被串联连接，并且与矩阵的1j元素相对应的元件电容器的电容与对应于 2j元素具有规定值。 Colpitts电路还具有分配给每个列的第一开关和第二开关。 分配给第一行的每个元件电容器通过第一开关连接到晶体管放大器的控制电极，并且分配给每一列的两个元件电容器的结通过第二开关连接到所述晶体管放大器的输出端 。 第一和第二开关为每列同步运行。

公开(公告)号：US6058294A

公开(公告)日：2000-05-02

申请号：US47779

申请日：1998-03-24

Applicant: Frederick J. Bruwer ,  Willem Smit

Inventor： Frederick J. Bruwer ,  Willem Smit

IPC: H03B5/08 ,  H03B1/00 ,  H03B5/20 ,  H04B1/04 ,  H04B1/02 ,  H04R1/02

CPC classification number: H03B5/20 ,  H03B2201/02 ,  H03B2201/025 ,  H03B2201/0266 ,  H03J2200/10 ,  Y10T307/826

Abstract: A transmitter system having an adjustable monolithic frequency stabilization and tuning internal capacitor circuit. The transmitter system has a transmitter for generating and transmitting a transmitter oscillator frequency signal. A data generating chip is coupled to the transmitter. The data generating chip is used for adjusting and controlling the transmitter oscillator frequency signal. A variable capacitor circuit is located internal to the data generating chip and is coupled to a ground pin and one of a plurality of function pins on the data generating chip. The variable capacitor circuit is used for adjusting and setting the centerpoint of the transmitter oscillator frequency signal.

Abstract translation: 一种具有可调单片稳频和调谐内部电容电路的发射机系统。 发射机系统具有用于生成和发送发射机振荡器频率信号的发射机。 数据产生芯片耦合到发射机。 数据生成芯片用于调整和控制发射机振荡器频率信号。 可变电容器电路位于数据产生芯片的内部，并且耦合到数据生成芯片上的接地引脚和多个功能引脚中的一个。 可变电容电路用于调整和设置发射机振荡器频率信号的中心点。

公开(公告)号：US5994985A

公开(公告)日：1999-11-30

申请号：US985564

申请日：1997-12-05

Applicant: David R. Pehlke ,  Amit Burstein ,  Mau Chung F. Chang

Inventor： David R. Pehlke ,  Amit Burstein ,  Mau Chung F. Chang

IPC: H03B1/00 ,  H03J3/16 ,  H03J3/20

CPC classification number: H03J3/16 ,  H03B2201/0208 ,  H03B2201/0216 ,  H03B2201/025 ,  H03J2200/10

Abstract: A high-performance integrable tunable inductor includes a "primary" coil and a "drive" coil placed in close proximity to each other and simultaneously driven with primary and drive currents, respectively. The drive current induces mutual components of inductance in the primary coil which vary with the phase and amplitude relationship between the two currents. These relationships are controlled to precisely establish the impedance of the primary coil, allowing the inductor to be "tuned" to provide a desired inductance or resistance by simply varying the phase and amplitude relationships appropriately. Inductance values tunable over ranges of about 2:1 and Q values of nearly 2000 have been demonstrated. The primary coil can also be made to operate as a relatively large integrated capacitance by setting the phase and amplitude relationships appropriately. The tunable inductor can be fabricated with standard CMOS processes, or any of a number of other processing technologies, and thus integrated into a host of analog circuits for which a highly-integrated implementation is desirable.

Abstract translation: 高性能可积分可调电感器包括一个“初级”线圈和一个“驱动”线圈，它们分别靠近彼此并且同时由主电流和驱动电流驱动。 驱动电流导致初级线圈中的电感的相互分量随着两个电流之间的相位和幅度关系而变化。 控制这些关系以精确地建立初级线圈的阻抗，允许电感通过简单地相位和幅度关系改变来“调谐”以提供期望的电感或电阻。 已经证明了在大约2:1的范围内可调谐的电感值和接近2000的Q值。 通过适当地设定相位和幅度关系，初级线圈也可以作为相对较大的积分电容而工作。 可调谐电感器可以用标准CMOS工艺或许多其它处理技术中的任何一种制造，并因此被集成到需要高度集成的实现的模拟电路的主机中。

公开(公告)号：US5880921A

公开(公告)日：1999-03-09

申请号：US848116

申请日：1997-04-28

Applicant: J.L. Julian Tham ,  James L. Bartlett ,  Mau Chung F. Chang ,  Henry O. Marcy, 5th ,  Deepak Mehrotra ,  Kenneth D. Pedrotti ,  David R. Pehlke ,  Charles W. Seabury ,  Jun J. Yao

Inventor： J.L. Julian Tham ,  James L. Bartlett ,  Mau Chung F. Chang ,  Henry O. Marcy, 5th ,  Deepak Mehrotra ,  Kenneth D. Pedrotti ,  David R. Pehlke ,  Charles W. Seabury ,  Jun J. Yao

IPC: H01H59/00 ,  H03B1/00 ,  H01G23/00

CPC classification number: H01H59/0009 ,  H01G5/16 ,  H01H2001/0084 ,  H03B2201/0208 ,  H03B2201/0216 ,  H03B2201/025 ,  H03J2200/10

Abstract: A monolithically integrated switched capacitor bank using MEMS technology that is capable of handling GHz signal frequencies in both the RF and millimeter bands while maintaining precise digital selection of capacitor levels over a wide tuning range. Each MEMS switch includes a cantilever arm that is affixed to the substrate and extends over a ground line and a gapped signal line. An electrical contact is formed on the bottom of the cantilever arm positioned above and facing the gap in the signal line. A top electrode atop the cantilever arm forms a control capacitor structure above the ground line. A capacitor structure, preferably a MEMS capacitor suspended above the substrate at approximately the same height as the cantilever arm, is anchored to the substrate and connected in series with a MEMS switch. The MEMS switch is actuated by applying a voltage to the top electrode, which produces an electrostatic force that attracts the control capacitor structure toward the ground line, thereby causing the electrical contact to close the gap in the signal line and connect the MEMS capacitor structure between a pair of output terminals. The integrated MEMS switch-capacitor pairs have a large range between their on-state and off-state impedance, and thus exhibit superior isolation and insertion loss characteristics.

Abstract translation: 使用MEMS技术的单片集成开关电容器组，其能够处理RF和毫米波段中的GHz信号频率，同时在宽调谐范围内保持电容器电平的精确数字选择。 每个MEMS开关包括悬臂，其固定在基板上并在接地线和间隙信号线上延伸。 在位于信号线上方并面向信号线的间隙的悬臂的底部上形成电接触。 在悬臂上方的顶部电极在地线上方形成控制电容器结构。 电容器结构，优选地悬置在基板上方的悬臂上方与悬臂大致相同高度的MEMS电容器被锚定到基板并与MEMS开关串联连接。 通过向顶部电极施加电压来致动MEMS开关，该电压产生吸引控制电容器结构朝向接地线的静电力，从而使电接触闭合信号线中的间隙，并将MEMS电容器结构 一对输出端子。 集成的MEMS开关电容器对在其导通状态和截止状态阻抗之间具有较大的范围，因此表现出优异的隔离和插入损耗特性。

公开(公告)号：US5856763A

公开(公告)日：1999-01-05

申请号：US811997

申请日：1997-03-05

Applicant: Glen O. Reeser ,  Lunal Khuon

Inventor： Glen O. Reeser ,  Lunal Khuon

IPC: H03B1/00 ,  H03B5/12 ,  H03B5/20

CPC classification number: H03B5/1231 ,  H03B5/1218 ,  H03B5/1243 ,  H03B2201/0208 ,  H03B2201/025

Abstract: A voltage controlled oscillator (10) operable on two widely separated frequency bands of 800 MHz and 1.9 GHz, for example. The two operable frequency modes are controlled by changing base bias voltages on at least two transistors with commonly connected emitters. A base circuit of each transistor is connected to an independent resonator and tuning element and shares a common feedback reactance. By increasing a base bias voltage of first transistor relative the a second transistor, an associated first base circuit is turned on and allowed to oscillate at a first frequency while a second base circuit is turned off preventing oscillation at a second frequency. Correspondingly, by decreasing the base bias voltage the first base circuit is turned off and the second base circuit is turned on. The transistors share a common collector connection and output providing either one of the two frequencies.

Abstract translation: 例如，可操作于800MHz和1.9GHz的两个广泛分离的频带上的压控振荡器（10）。 通过在具有共同连接的发射器的至少两个晶体管上改变基极偏置电压来控制两个可操作的频率模式。 每个晶体管的基极电路连接到独立的谐振器和调谐元件，并共享一个共同的反馈电抗。 通过相对于第二晶体管增加第一晶体管的基极偏置电压，相关联的第一基极电路导通并允许以第一频率振荡，而第二基极电路关闭，从而防止在第二频率下的振荡。 相应地，通过降低基极偏置电压，第一基极电路被断开，第二基极电路导通。 晶体管共享共同的集电极连接和输出，提供两个频率之一。

公开(公告)号：US5715528A

公开(公告)日：1998-02-03

申请号：US598753

申请日：1996-02-08

Applicant: Yao Hsien Kuo ,  Howard Graeme Roberts ,  Edmund Joe Tillo, II ,  John Francis Kennedy

Inventor： Yao Hsien Kuo ,  Howard Graeme Roberts ,  Edmund Joe Tillo, II ,  John Francis Kennedy

IPC: H03B1/00 ,  H03J5/24 ,  H04B1/18

CPC classification number: H03J5/244 ,  H03B2201/025

Abstract: An improved tuner for a varactor-tuned local oscillator in a radio receiver includes a winding of a pair of magnetically coupled inductors, preferably constructed in the form of a transformer. Preferably, the first and second windings are magnetically coupled with reduced inter-winding capacitance by axially separating the windings on a common core. The second winding is selectively coupled by a switch to a capacitive load in order to change the inductance of the first winding. The tuning range of the resonant circuit formed by the varactor diode set and the first winding is changed when the capacitive load is coupled. The magnetic coupling between the transformer windings provides DC isolation between the oscillator and the switching circuit. Preferably, a tuning actuator has overlapping ranges of movement for selection of a signal within both the AM and FM frequency bands as the intermediate frequencies for the local oscillator are generated.

Abstract translation: 用于无线电接收机中的变容二极管调谐本地振荡器的改进的调谐器包括一对磁耦合电感器的绕组，优选地以变压器的形式构造。 优选地，通过在公共芯上轴向分离绕组，第一和第二绕组磁耦合减小的绕组间电容。 第二绕组通过开关选择性耦合到电容性负载，以便改变第一绕组的电感。 当容性负载耦合时，由变容二极管组和第一绕组形成的谐振电路的调谐范围被改变。 变压器绕组之间的磁耦合在振荡器和开关电路之间提供直流隔离。 优选地，当生成本地振荡器的中间频率时，调谐致动器具有重叠的移动范围，用于选择AM和FM频带内的信号。

公开(公告)号：US20160079962A1

公开(公告)日：2016-03-17

申请号：US14942826

申请日：2015-11-16

Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.

Inventor： Chewn-Pu Jou ,  Feng Wei Kuo

IPC: H03J5/02 ,  H03B5/08

CPC classification number: H03J5/0218 ,  H03B5/08 ,  H03B5/1215 ,  H03B5/1228 ,  H03B5/1265 ,  H03B2201/025 ,  H03H5/12 ,  H03J5/246 ,  H03J2200/10

Abstract: A device comprises a first capacitor block comprising a plurality of first capacitors connected in a first configuration, a second capacitor block comprising a plurality of second capacitors connected in the first configuration, a third capacitor block comprising a plurality of third capacitors connected in a second configuration, a fourth capacitor block comprising a plurality of fourth capacitors connected in the second configuration, a first switch connected between the first capacitor block and the second capacitor block, a second switch connected between the third capacitor block and the fourth capacitor block, a third switch connected between the first capacitor block and the fourth capacitor block and a fourth switch connected between the third capacitor block and the second capacitor block.

Abstract translation: 一种器件包括：第一电容器块，包括以第一配置连接的多个第一电容器;第二电容器块，包括以第一配置连接的多个第二电容器;第三电容器块，包括以第二配置连接的多个第三电容器 第四电容器块，包括以第二配置连接的多个第四电容器，连接在第一电容器块和第二电容器块之间的第一开关，连接在第三电容器块和第四电容器块之间的第二开关，第三开关 连接在第一电容器块和第四电容器块之间，第四开关连接在第三电容器块和第二电容器块之间。

公开(公告)号：US09059683B2

公开(公告)日：2015-06-16

申请号：US13902392

申请日：2013-05-24

Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.

Inventor： Chewn-Pu Jou ,  Ying-Ta Lu ,  Hsien-Yuan Liao

IPC: H03B5/12 ,  H03J5/24 ,  H03H7/00

CPC classification number: H03J5/246 ,  H01G4/38 ,  H03B5/1215 ,  H03B5/1228 ,  H03B5/1265 ,  H03B2201/025 ,  H03H5/12 ,  H03H7/00 ,  H03J2200/10 ,  H03L7/08

Abstract: An electronic device includes an inductive element, and variable capacitors. Each variable capacitor includes: first and third capacitors, both having a first terminal electrically connected to a first terminal of the inductive element; and second and fourth capacitors, both having a first terminal electrically connected to a second terminal of the inductive element. A first switch circuit electrically connects or isolates a second terminal of the first capacitor to/from a second terminal of the second capacitor. A second switch circuit electrically connects or isolates a second terminal of the third capacitor to/from a second terminal of the fourth capacitor. A third switch circuit electrically connects or isolates the second terminal of the first capacitor to/from the second terminal of the fourth capacitor. A fourth switch circuit electrically connects or isolates the second terminal of the third capacitor to/from the second terminal of the second capacitor.

Abstract translation: 电子设备包括电感元件和可变电容器。 每个可变电容器包括：第一和第三电容器，两者具有电连接到电感元件的第一端子的第一端子; 以及第二和第四电容器，它们都具有电连接到电感元件的第二端子的第一端子。 第一开关电路将第一电容器的第二端子与第二电容器的第二端子电连接或隔离。 第二开关电路将第三电容器的第二端子与第四电容器的第二端子电连接或隔离。 第三开关电路将第一电容器的第二端子与第四电容器的第二端子电连接或隔离。 第四开关电路将第三电容器的第二端子与第二电容器的第二端子电连接或隔离。

公开(公告)号：US09035705B2

公开(公告)日：2015-05-19

申请号：US13980122

申请日：2012-01-19

Applicant: Ola Bruset ,  Tor Oyvind Vedal

Inventor： Ola Bruset ,  Tor Oyvind Vedal

IPC: H03L7/24 ,  G06F1/08 ,  H03K5/135

CPC classification number: H03L7/24 ,  G06F1/08 ,  H03B5/20 ,  H03B5/32 ,  H03B2201/025 ,  H03K5/135

Abstract: An integrated oscillator circuit comprises an oscillator configured to be switched between a first frequency and a second frequency. A switching circuit receives an input representing a target frequency and switches the oscillator between the first and second frequencies at intervals determined by the input, so as to cause the average output frequency of the oscillator to approximate the target frequency.

Abstract translation: 一种集成振荡器电路包括被配置为在第一频率和第二频率之间切换的振荡器。 切换电路接收表示目标频率的输入，并以由输入确定的间隔在第一和第二频率之间切换振荡器，以使振荡器的平均输出频率近似于目标频率。

公开(公告)号：US20150015343A1

公开(公告)日：2015-01-15

申请号：US13938727

申请日：2013-07-10

Applicant: QUALCOMM Incorporated

Inventor： Gary John Ballantyne ,  Bo Sun ,  Yi Tang ,  Zixiang Yang ,  Masoud Ensafdaran

IPC: H03L7/099

CPC classification number: H03L7/0991 ,  H03B5/1265 ,  H03B2200/0088 ,  H03B2201/025 ,  H03B2202/017 ,  H03J5/24 ,  H03J2200/10 ,  H03J2200/36 ,  H03L7/099 ,  H03L2207/50

Abstract: One feature pertains to a digitally controlled oscillator (DCO) that comprises a variable capacitor and noise reduction circuitry. The variable capacitor has a variable capacitance value that controls an output frequency of the DCO. The variable capacitance value is based on a first bank capacitance value provided by a first capacitor bank, a second bank capacitance value provided by a second capacitor bank, and an auxiliary bank capacitance value provided by an auxiliary capacitor bank. The noise reduction circuitry is adapted to adjust the variable capacitance value by adjusting the auxiliary bank capacitance value while maintaining at least one of the first bank capacitance value and/or the second bank capacitance value substantially unchanged. Prior to adjusting the variable capacitance value, the noise reduction circuitry may determine that a received input DCO control word transitions across a capacitor bank sensitive boundary.

Abstract translation: 一个特征涉及包含可变电容器和降噪电路的数字控制振荡器（DCO）。 可变电容器具有控制DCO的输出频率的可变电容值。 可变电容值基于由第一电容器组提供的第一组电容值，由第二电容器组提供的第二组电容值和由辅助电容器组提供的辅助组电容值。 噪声降低电路适于通过调整辅助电容电容值来调节可变电容值，同时保持第一组电容值和/或第二组电容值中的至少一个基本上不变。 在调整可变电容值之前，噪声降低电路可以确定接收的输入DCO控制字在电容器组敏感边界之间转变。