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    Temperature compensated signal generation circuit employing a single temperature sensing element
    71.
    发明授权
    Temperature compensated signal generation circuit employing a single temperature sensing element 失效
    采用单温度传感元件的温度补偿信号发生电路

    公开(公告)号：US3763440A

    公开(公告)日：1973-10-02

    申请号：US3763440D

    申请日：1972-04-24

    Applicant: INTEGRATED SYSTEMS TECHNOLOGY

    Inventor： GARCIA H ,  PEEK B

    IPC: H03B5/32 ,  H03B1/00 ,  H03B5/36 ,  H03L1/02 ,  H03B3/04

    CPC classification number: H03L1/022 ,  H03B5/368 ,  H03B2200/0048 ,  H03B2200/0056 ,  H03B2201/018 ,  H03B2201/0258

    Abstract: A signal generation circuit includes a crystal oscillator for generating an oscillatory signal and a temperature compensation circuit coupled to the oscillator for controlling the capacitance loading of the crystal in the oscillator. The temperature compensation circuit includes a temperature sensing device and operates to develop a first capacitance in a first temperature range, a second capacitance which varies at a ertain rate with the variation in temperature in a second temperature range, and a third capacitance which varies at a different rate with the variation in temperature in a third temperature range.

    Abstract translation: 信号发生电路包括用于产生振荡信号的晶体振荡器和耦合到振荡器的温度补偿电路，用于控制振荡器中的晶体的电容负载。 温度补偿电路包括温度检测装置，其工作是在第一温度范围内开发第一电容，第二电容随第二温度范围内的温度变化而以不变速率变化，第三电容在 与第三温度范围内的温度变化不同的速率。

    SWITCHED MODE OSCILLATOR
    74.
    发明公开
    SWITCHED MODE OSCILLATOR 审中-公开
    GESCHALTETER OSZILLATOR

    公开(公告)号：EP1092264A4

    公开(公告)日：2002-11-13

    申请号：EP99920309

    申请日：1999-05-04

    Applicant: VARI L CO

    Inventor： POPE MATTHEW D

    IPC: H03B1/00 ,  H03B5/12 ,  H03B5/18

    CPC classification number: H03B5/1231 ,  H03B5/1203 ,  H03B5/1243 ,  H03B5/1262 ,  H03B2201/0208 ,  H03B2201/0258

    Abstract: An electronic oscillator of the Colpitts type with an amplifying element (A) and a tank circuit (T). The tank circuit (T) includes a parallel tuned resonant circuit (PT), a series tuned resonant circuit (ST) and a switching circuit (SW) that selectively connects one of the resonant circuits (PT, ST) to the tank circuit (T). The oscillator operates at a first frequency in the parallel tuned mode and a second frequency that is substantially twice the first frequency in the series tuned mode.

    Abstract translation: 具有放大元件（A）和槽路（T）的Colpitts型电子振荡器。 谐振电路（T）包括并联谐振电路（PT），串联谐振电路（ST）和选择性地将谐振电路（PT，ST）之一连接到谐振电路（T）的开关电路 ）。 振荡器在并行调谐模式下以第一频率工作，而在串联调谐模式下工作在基本上为第一频率两倍的第二频率。

    Oscillator having a tunable resonant circuit
    75.
    发明公开
    Oscillator having a tunable resonant circuit 有权
    具有可调谐谐振电路的振荡器

    公开(公告)号：EP1111768A3

    公开(公告)日：2002-01-23

    申请号：EP00124719.6

    申请日：2000-11-13

    Applicant: DEUTSCHE THOMSON-BRANDT GMBH

    Inventor： Selz, Alfred

    IPC: H03B5/12 ,  H03J5/24

    CPC classification number: H03J5/244 ,  H03B5/08 ,  H03B2201/0208 ,  H03B2201/0258

    Abstract: The oscillator having a tunable resonant circuit has a switch (SD) for expanding the tuning range, which is connected in series with two coils (L1a, L1b) jointly determining the oscillation frequency of the resonant circuit. A further coil (L2b), which is coupled to the resonant circuit in the region of the switch (SD), is used to supply a switching voltage (US) for the switch. In this arrangement, the other end of this third coil (L2b) is coupled to a reference potential (G), with a capacitor (C6), which acts as a short circuit for radio-frequency purposes, decoupling the switching voltage (US) from the reference potential (G). Since the switching voltage (US) is in this case coupled to an oscillator circuit node which is earthed for radio-frequency purposes, it is of no significance in this case which resistor is used to couple the switching voltage. This means that the resonant circuit is not resistively damped by the connection of the switching voltage. Coupled to the other end of the switching diode is a further component (L2a), preferably a fourth coil, which has the same inductance as the third coil (L2b), in order to dissipate the switching voltage. The first two coils are advantageously of the same size, so that this circuit coil jointly determining the oscillation frequency is earthed by the third coil exactly at its centre. This means that the quality factor and the oscillation properties of the resonant circuit are not adversely affected. Circuits of this type are used, in particular, in television sets to receive the lower and upper VHF bands.

    MONOLITHIC HIGH FREQUENCY VOLTAGE CONTROLLED OSCILLATOR TRIMMING CIRCUIT
    76.
    发明公开
    MONOLITHIC HIGH FREQUENCY VOLTAGE CONTROLLED OSCILLATOR TRIMMING CIRCUIT 有权
    平衡电路FOR压控单片高频振荡器

    公开(公告)号：EP1032970A1

    公开(公告)日：2000-09-06

    申请号：EP98958422.2

    申请日：1998-11-10

    Applicant: TELEFONAKTIEBOLAGET LM ERICSSON

    Inventor： BJÖRK, Christian ,  LANTZ, Martin ,  GÄRDENFORS, Torbjörn ,  MARHOLEV, Bojko

    IPC: H03B5/12

    CPC classification number: H03B5/1209 ,  H03B5/1243 ,  H03B2201/0258

    Abstract: A monolithic high frequency voltage controlled oscillator trimming circuit includes a plurality of capacitance loops (140) selectively connected between a first (120) and second (130) differential input of a voltage oscillator active network (110). A plurality of diodes (159, 160), connected in series with the respective plurality of capacitance loops (140), selectively connect respective capacitance loops (140) between the first (120) and second (130) differential input when forward biased. In a similar fashion, the plurality of diodes (159, 160) selectively disconnect the respective capacitance loops (140) from the first (120) and second (130) differential input when reverse biased. A controller (180) applies a forward biasing voltage to the diode (159, 160) of the selected capacitance loop (140) to connect the capacitance loop (140) to the active network (110) of the voltage controlled oscillator and applies a reverse biasing voltage to the diode (159, 160) of the selected capacitance loop (140) to disconnect the capacitance loop (140) from the active network (110). The diodes (159, 160) used in the capacitance loops (140) form a switch operable at high frequencies and are formed from a bipolar complementary metal oxide semiconductor electro-static discharge protection diode.

    Frequency agile switched resonator oscillator with noise degeneration
    78.
    发明公开
    Frequency agile switched resonator oscillator with noise degeneration 失效
    谐振器，振荡器，频率振荡器和振荡器。

    公开(公告)号：EP0546734A1

    公开(公告)日：1993-06-16

    申请号：EP92310871.6

    申请日：1992-11-27

    Applicant: RAYTHEON COMPANY

    Inventor： Bianchini, Michael J. ,  Lyons, Christopher T. ,  Michalik, Richard A. ,  Waterman, Raymond C. Jr.

    IPC: H03B5/18

    CPC classification number: H03L7/02 ,  H03B5/1841 ,  H03B5/1864 ,  H03B2200/0024 ,  H03B2200/0048 ,  H03B2200/0056 ,  H03B2200/0072 ,  H03B2200/0088 ,  H03B2200/009 ,  H03B2201/0258 ,  H03B2202/025 ,  H03B2202/076

    Abstract: 5 n7 An oscillator (10) includes an amplifier (12) having an input and an output and a feedback circuit (14) disposed between the input and the output of the amplifier (12). The feedback circuit (14) includes a plurality of resonators (34) and a pair of switches (32,38). Each switch (32,38) includes a first port and multiple connectable ports, the multiple connectable ports of each switch (32,38) connected to a corresponding one of the plurality of resonators (34). The feedback circuit (14) further includes a voltage-controlled phase shifter (22) disposed in series with the switches (32,38). The oscillator (10) further includes a discriminator circuit (16), responsive to signals from the feedback circuit (14), for providing a control signal (52) to the voltage-controlled phase shifter (22) for degenerating low frequency noise within the oscillator (10). With such an arrangement, high Q low noise resonators can be switched in and out of the circuit thus providing improved phase noise performance at high power levels with the desirable frequency agility required for a microwave oscillator.

    Abstract translation: 振荡器（10）包括具有输入和输出的放大器（12）和设置在放大器（12）的输入和输出之间的反馈电路（14）。 反馈电路（14）包括多个谐振器（34）和一对开关（32,38）。 每个开关（32,38）包括第一端口和多个可连接端口，每个开关（32,38）的多个可连接端口连接到多个谐振器（34）中的相应一个谐振器。 反馈电路（14）还包括与开关（32,38）串联布置的电压控制移相器（22）。 振荡器（10）还包括鉴别器电路（16），响应于来自反馈电路（14）的信号，用于向压控移相器（22）提供控制信号（52），用于将低频噪声 振荡器（10）。 通过这样的布置，可以将高Q低噪声谐振器切换到电路中，从而在具有微波振荡器所需要的频率灵活性的高功率电平下提供改进的相位噪声性能。

    Oscillation circuit, vibration device, electronic apparatus, mobile unit, and vibration device adjustment method and sensitivity adjustment circuit
    80.
    发明专利
    Oscillation circuit, vibration device, electronic apparatus, mobile unit, and vibration device adjustment method and sensitivity adjustment circuit 有权
    振荡电路，振动装置，电子装置，移动装置以及振动装置调整方法和灵敏度调整电路

    公开(公告)号：JP2014072715A

    公开(公告)日：2014-04-21

    申请号：JP2012217440

    申请日：2012-09-28

    Applicant: Seiko Epson Corp ,  セイコーエプソン株式会社

    Inventor： ITASAKA YOSUKE

    IPC: H03B5/32

    CPC classification number: H03L7/099 ,  H03B5/362 ,  H03B5/364 ,  H03B2201/0258 ,  H03J2200/10 ,  H03L1/028

    Abstract: PROBLEM TO BE SOLVED: To provide an oscillation circuit, a vibration device, an electronic apparatus, a mobile unit, and a vibration device adjustment method and sensitivity adjustment circuit capable of adjusting the sensitivity of frequency control voltage and correcting a variation in the sensitivity of frequency control voltage with higher accuracy than possible with prior art.SOLUTION: An oscillation circuit 1 comprises: an T1 terminal; a T2 terminal; a variable capacitance element 20 connected at one end to the T1 terminal and varying in capacitance value according to a frequency control signal; a variable capacitance element 22 connected at one end to the T2 terminal and varying in capacitance value according to a frequency control signal; a load capacitance circuit 30 connected to the T1 terminal; and a load capacitance circuit 20 connected to the T2 terminal, thereby causing an oscillation element 3 to oscillate at a frequency according to the frequency control signal. The oscillation circuit 1 is able to adjust the capacitance value of the load capacitance circuit 30, the capacitance value of a load capacitance circuit 40, a reference voltage VREFB (potential at the T1 terminal), and a reference voltage VREFC (potential at the T2 terminal) according to set information.

    Abstract translation: 要解决的问题：提供一种振荡电路，振动装置，电子设备，移动单元以及振动装置调节方法和灵敏度调节电路，其能够调节频率控制电压的灵敏度并校正灵敏度的变化 频率控制电压比现有技术更高的精度。解决方案：振荡电路1包括：T1端子; 一个T2终端; 可变电容元件20，其一端连接到T1端子，并且根据频率控制信号而变化为电容值; 可变电容元件22，其一端连接到T2端子，并根据频率控制信号而变化为电容值; 连接到T1端子的负载电容电路30; 以及与T2端子连接的负载电容电路20，由此使振荡元件3根据频率控制信号以频率振荡。 振荡电路1能够调整负载电容电路30的电容值，负载电容电路40的电容值，基准电压VREFB（T1端子的电位）以及基准电压VREFC（T2的电位 终端）根据设置信息。

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