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    T-network capbank
    122.
    发明授权
    T-network capbank 有权
    T网络capbank

    公开(公告)号：US07528667B1

    公开(公告)日：2009-05-05

    申请号：US11489835

    申请日：2006-07-19

    Applicant: Chun Geik Tan ,  Randy Tsang ,  Yonghua Song

    Inventor： Chun Geik Tan ,  Randy Tsang ,  Yonghua Song

    IPC: H03B5/08

    CPC classification number: H03J1/0008 ,  H03B2201/0266 ,  H03J2200/10

    Abstract: A capacitor bank adapted to provide a variable capacitance to an electronic circuit is provided. The capacitor bank has at least a most significant bit and a least significant bit and includes a first capacitor cell having a first capacitance value and disposed between a first node and a second node, thereby forming the most significant bit. The capacitor bank also includes a second capacitor cell having a second capacitance value and disposed between the first node and the second node, thereby forming the least significant bit. The second capacitance value is less than the first capacitance value. Additionally, the second capacitor cell includes a first T-network capacitor unit in electrical communication with a source of a transistor and a second T-network capacitor unit in electrical communication with a drain of the transistor.

    Abstract translation: 提供一种适于向电子电路提供可变电容的电容器组。 电容器组具有至少最高有效位和最低有效位，并且包括具有第一电容值并设置在第一节点和第二节点之间的第一电容器单元，从而形成最高有效位。 电容器组还包括具有第二电容值并设置在第一节点和第二节点之间的第二电容器单元，从而形成最低有效位。 第二电容值小于第一电容值。 此外，第二电容器单元包括与晶体管的源电连通的第一T网络电容器单元和与晶体管的漏极电连通的第二T网络电容器单元。

    HIGH-FREQUENCY OSCILLATOR AND ELECTRONIC APPARATUS
    123.
    发明申请
    HIGH-FREQUENCY OSCILLATOR AND ELECTRONIC APPARATUS 有权
    高频振荡器和电子设备

    公开(公告)号：US20080309415A1

    公开(公告)日：2008-12-18

    申请号：US12199871

    申请日：2008-08-28

    Applicant: Tomohide ARAMATA

    Inventor： Tomohide ARAMATA

    IPC: H03B5/12

    CPC classification number: H03B5/1231 ,  H03B5/1203 ,  H03B5/1262 ,  H03B2200/0048 ,  H03B2201/0266

    Abstract: In a high-frequency oscillator, a first resonance circuit and a second resonance circuit are respectively connected to a first amplifier circuit and a second amplifier circuit. A selection circuit includes a first switch circuit and a second switch circuit which selectively operate one of the first amplifier circuit and the second amplifier circuit. A grounded capacitor is connected to output sides of the first amplifier circuit and the second amplifier circuit. The grounded capacitor is commonly used by both the first amplifier circuit and the second amplifier circuit. An auxiliary grounded capacitor is connected between the first switch circuit and the first amplifier circuit. Accordingly, the grounded capacitor and the auxiliary grounded capacitor are connected to each other in parallel only when the first amplifier circuit is activated.

    Abstract translation: 在高频振荡器中，第一谐振电路和第二谐振电路分别连接到第一放大器电路和第二放大器电路。 选择电路包括选择性地操作第一放大器电路和第二放大器电路之一的第一开关电路和第二开关电路。 接地电容器连接到第一放大器电路和第二放大器电路的输出侧。 接地电容器通常由第一放大器电路和第二放大器电路两者使用。 辅助接地电容器连接在第一开关电路和第一放大器电路之间。 因此，只有当第一放大器电路被激活时，接地电容器和辅助接地电容器彼此并联连接。

    Precision capacitor array
    124.
    发明授权
    Precision capacitor array 有权
    精密电容阵列

    公开(公告)号：US07403147B2

    公开(公告)日：2008-07-22

    申请号：US11606681

    申请日：2006-11-29

    Applicant: Erno H. Klaassen

    Inventor： Erno H. Klaassen

    IPC: H03M1/66

    CPC classification number: H03M1/0612 ,  H03B2200/005 ,  H03B2201/0208 ,  H03B2201/0266 ,  H03M1/687 ,  H03M1/802

    Abstract: A digital capacitor array with individually shielded unit capacitors and combination binary—thermometer coded addressing is disclosed. Such a capacitor array may be part of a digitally controlled oscillator in a MEMS-based frequency reference.

    Abstract translation: 公开了具有单独屏蔽单元电容器和组合二进制温度计编码寻址的数字电容器阵列。 这种电容器阵列可以是基于MEMS的频率参考中的数字控制振荡器的一部分。

    Dual-band voltage controlled oscillator
    125.
    发明申请
    Dual-band voltage controlled oscillator 失效
    双频压控振荡器

    公开(公告)号：US20080129403A1

    公开(公告)日：2008-06-05

    申请号：US11605969

    申请日：2006-11-30

    Applicant: Sheng Lyang Jang ,  Shao Hua Li

    Inventor： Sheng Lyang Jang ,  Shao Hua Li

    IPC: H03B5/08

    CPC classification number: H03B5/1228 ,  H03B5/1215 ,  H03B5/1243 ,  H03B5/1262 ,  H03B2200/0048 ,  H03B2201/0266

    Abstract: The present invention discloses a dual-band voltage controlled oscillator (VCO), comprising a plurality of resonant circuits; an inductor module; a plurality of switches of current source; a buffer circuit; and a output port. The dual-band voltage controlled oscillator (VCO) according to the invention uses the current source in such two VCOs with different resonant frequencies as the switch device to combine the two VCOs and uses the common inductor module for the two VCOs to save the chip size.

    Abstract translation: 本发明公开了一种双频压控振荡器（VCO），包括多个谐振电路; 一个电感模块; 多个电流源开关; 一个缓冲电路; 和输出端口。 根据本发明的双频带压控振荡器（VCO）使用具有不同谐振频率的两个VCO中的电流源作为开关器件来组合两个VCO并且使用用于两个VCO的公共电感器模块来节省芯片尺寸 。

    Analog varactor
    127.
    发明申请
    Analog varactor 有权
    模拟变容二极管

    公开(公告)号：US20070057743A1

    公开(公告)日：2007-03-15

    申请号：US11227421

    申请日：2005-09-14

    Applicant: Peter Vancorenland ,  Lysander Lim ,  Augusto Marques ,  Scott Willingham

    Inventor： Peter Vancorenland ,  Lysander Lim ,  Augusto Marques ,  Scott Willingham

    IPC: H03B5/12

    CPC classification number: H03J3/185 ,  H03B5/1243 ,  H03B5/1293 ,  H03B2200/0062 ,  H03B2201/0208 ,  H03B2201/0266 ,  H03J7/10 ,  H03J2200/36 ,  H03L7/099

    Abstract: An oscillator includes a plurality of varactor cells to receive a control signal to control a frequency of the oscillator. Each of the varactor cells includes a switch that includes a first terninal to receive the control signal and a second terminal such that the switch operates to control a capacitance of the varactor cell in response to a voltage between the first and second terminals. The oscillator includes a bias circuit to provide a different bias voltage to each second terminal and an amplifier that is coupled to the varactor cells to generate an oscillating signal.

    Abstract translation: 振荡器包括多个变容二极管单元，用于接收控制信号以控制振荡器的频率。 每个变容二极管单元包括开关，该开关包括用于接收控制信号的第一三极管和第二端子，使得开关操作以响应于第一和第二端子之间的电压来控制变容二极管单元的电容。 振荡器包括偏置电路，以向每个第二端子提供不同的偏置电压，以及耦合到变容二极管单元以产生振荡信号的放大器。

    Digitally programmable capacitor array
    129.
    发明申请
    Digitally programmable capacitor array 有权
    数字可编程电容阵列

    公开(公告)号：US20070040619A1

    公开(公告)日：2007-02-22

    申请号：US11209117

    申请日：2005-08-22

    Applicant: Dale McQuirk ,  Michael Berens

    Inventor： Dale McQuirk ,  Michael Berens

    IPC: H03B5/12 ,  H03L7/099

    CPC classification number: H01L27/101 ,  H03B2201/0266 ,  H03J2200/10

    Abstract: A programmable capacitor array does not require separate switching transistors because the capacitors themselves have a switchable capacitance, which capacitors are made in the manner of regular N channel transistors with their source/drains connected to each other. When a logic low is applied to the gate, the capacitance is relatively low and the capacitance is what is commonly called parasitic capacitance. The capacitance increases significantly when a logic high is applied to the gate because the logic high has the effect of inverting the channel. Thus, the capacitor array is made of transistors that themselves have switchable capacitance operated so that no separate switching transistors are required. This allows for construction of an array of unit capacitors to achieve monotonic operation and good linearity using conventional manufacturing of N channel transistors while achieving significant area savings and reduced power consumption.

    Abstract translation: 可编程电容器阵列不需要单独的开关晶体管，因为电容器本身具有可切换电容，这些电容器以其源极/漏极相互连接的常规N沟道晶体管的方式制成。 当逻辑低电平施加到栅极时，电容相对较低，电容通常称为寄生电容。 当逻辑高电平施加到栅极时，电容显着增加，因为逻辑高电平具有反相通道的作用。 因此，电容器阵列由其自身具有可切换电容操作的晶体管制成，使得不需要单独的开关晶体管。 这允许使用N沟道晶体管的常规制造来实现单元电容器阵列以实现单调操作和良好的线性度，同时实现显着的面积节省和降低的功耗。

    Arrangement with a capacitor which can be connected into a circuit and disconnected therefrom and associated method
    130.
    发明授权
    Arrangement with a capacitor which can be connected into a circuit and disconnected therefrom and associated method 有权
    可以连接到电路中并与其断开连接的电容器的布置和相关联的方法

    公开(公告)号：US07180383B2

    公开(公告)日：2007-02-20

    申请号：US11051221

    申请日：2005-02-04

    Applicant: Jörn Angel ,  Jürgen Oehm

    Inventor： Jörn Angel ,  Jürgen Oehm

    IPC: H03B5/18

    CPC classification number: H03B5/1228 ,  H03B5/1212 ,  H03B5/124 ,  H03B5/1265 ,  H03B2201/0266

    Abstract: An arrangement and a method for connecting a capacitor into a circuit and disconnecting it therefrom are disclosed. The capacitor includes two capacitor elements, each with a main terminal and an auxiliary terminal. The auxiliary terminals are connected to one another at a reference node to which a control signal can be coupled as a function of the desired capacitance value. The capacitance value is tapped at the main terminals of the capacitor elements. When the capacitor is switched on, a high quality level is obtained, and when the capacitor is switched off, low parasitic capacitance components are obtained. For this reason the described arrangement is particularly suitable for use in voltage-controlled oscillators.

    Abstract translation: 公开了一种用于将电容器连接到电路中并将其从其断开的装置和方法。 电容器包括两个电容器元件，每个电容器元件具有主端子和辅助端子。 辅助端子在可以根据期望的电容值耦合到控制信号的参考节点处彼此连接。 在电容器元件的主端子处抽出电容值。 当电容器接通时，获得高质量水平，当电容器关断时，获得低的寄生电容分量。 为此，所描述的布置特别适用于压控振荡器。

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