公开(公告)号：EP0141933A3

公开(公告)日：1986-08-13

申请号：EP84109769

申请日：1984-08-16

Applicant: Siemens Aktiengesellschaft

Inventor： Fenk, Josef, Dipl.-Ing. ,  Stepp, Richard, Dipl.-Ing.

IPC: H03B05/12 ,  H03B05/36

CPC classification number: H03B5/36 ,  H03B1/04 ,  H03B5/1209 ,  H03B5/1215 ,  H03B5/1221 ,  H03B5/1231 ,  H03B5/1243 ,  H03B5/364 ,  H03B2200/0006 ,  H03B2200/0008 ,  H03B2200/001 ,  H03B2200/007 ,  H03B2200/0098 ,  H03C1/36 ,  H03C3/245

公开(公告)号：EP0138346A3

公开(公告)日：1988-04-20

申请号：EP84305889

申请日：1984-08-29

Applicant: NORTHERN TELECOM LIMITED

Inventor： Thomas, Terence Neil ,  Hogeboom, John Gordon

IPC: H03B05/36 ,  H03L07/06 ,  H04L25/48

CPC classification number: H04L7/033 ,  H03K3/0307 ,  H03L7/099

Abstract: A variable oscillator, suitable for integration as part of a phase lock loop (PLL) clock source in a complementary metal oxide semiconductor (CMOS) integrated circuit, includes an amplifier and terminals for connection to a a tank circuit, for example a crystal resonator. A passive reactance is alternately coupled and decoupled in relation to the amplifier to cause oscillatory operation at lower and higher frequencies. In the CMOS circuit the reactance is conveniently provided by conductive layers of predetermined dimensions being carried by an oxide layer. Each layer provides a capacitive reactance which is arranged in series with a field effect defice being controlled by associated PLL control circuitry.

公开(公告)号：EP0140343A3

公开(公告)日：1987-01-14

申请号：EP84112894

申请日：1984-10-25

Applicant: MOTOROLA, INC.

Inventor： Gay, Michael John ,  Gutmann, Johannes

IPC: H03B05/36

CPC classification number: H03B5/36 ,  H03B5/04 ,  H03B5/366 ,  H03B2200/0026 ,  H03B2200/0062

Abstract: The invention relates to a crystal controllable oscillator circuit. The oscillator includes an amplifier and an oscillation sustaining feed-back loop coupled between an output and an input of the amplifier the loop including two integrators in series for inhibiting oscillation at crystal overtones. Each integrator provides 90° phase shift independently of the oscillators defining RC product which determines only the gain thereby making the oscillator less sensitive to variations in circuit time constants due to temperature and manufacturing tolerance effects. The invention is particularly suitable for incorporating in integrated circuit form where only a single pin connection is required for the controlling cyrstal.

公开(公告)号：WO1992011691A1

公开(公告)日：1992-07-09

申请号：PCT/GB1991002287

申请日：1991-12-20

Applicant: NORTHERN TELECOM LIMITED ,  ROKOS, George, Hedley, Storm

Inventor： NORTHERN TELECOM LIMITED

IPC: H03B05/36

CPC classification number: H03B5/366

Abstract: In a voltage controlled crystal oscillator (Figure 4), control of the crystal frequency is effected by placing an adjustable reactance in series with the crystal. The value of the reactance is determined via a feedback path in which a voltage corresponding to the crystal current is amplified and fed back to the crystal.

Abstract translation: 在压控晶体振荡器（图4）中，晶体频率的控制是通过放置与晶体串联的可调电抗来实现的。 通过反馈路径来确定电抗的值，其中对应于晶体电流的电压被放大并反馈到晶体。

公开(公告)号：EP0248589A3

公开(公告)日：1988-10-05

申请号：EP87304692

申请日：1987-05-27

Applicant: SEIKO ELECTRONIC COMPONENTS LTD.

Inventor： Ochiai, Osamu Seiko Electronic Components ,  Tamura, Fujio Seiko Electronic Components

IPC: H03L01/02 ,  H03B05/36

CPC classification number: H03L1/022 ,  Y10S331/03

Abstract: A temperature-compensated oscillator circuit includes an oscillation element (17) and a floating gate MOS variable capacitor (14) having a three-terminal structure comprising an injection terminal (T I ), a capacitance terminal (T C ) and a ground terminal (T G ). The resistance ratio of a resistor network (21,22,23) and a fixed resistor (24) determines a DC bias voltage which is applied between the capacitance terminal (T C ) and the ground terminal (T G ) of the variable capacitor to effect temperature compensation.

公开(公告)号：EP0139583A3

公开(公告)日：1985-08-28

申请号：EP84402015

申请日：1984-10-08

Applicant: COMPAGNIE D'ELECTRONIQUE ET DE PIEZO-ELECTRICITE - C.E.P.E.

Inventor： Chauvin, Jacques ,  Canzian, Patrice

IPC: H03B05/36

CPC classification number: H03B5/36 ,  H03B5/1847 ,  H03B5/368

公开(公告)号：WO1997048179A1

公开(公告)日：1997-12-18

申请号：PCT/US1997005339

申请日：1997-03-27

Applicant: MOTOROLA INC.

Inventor： MOTOROLA INC. ,  JONELY, Michael, B. ,  FLESSNER, Thomas

IPC: H03B05/36

CPC classification number: H03B5/326

Abstract: An oscillator-transmitter (100) includes an input tank circuit (101) coupled between a frist amplifier (103) and a second amplifier (105) configured in an oscillator arrangement. An output tank circuit (107, 122), for radiating radio-frequency energy, is coupled between outputs (106, 110) of the first and a second amplifiers (103, 105). The output tank circuit (107, 122) radiates energy provided by both the first and second amplifiers (103, 105).

Abstract translation: 振荡器发射机（100）包括耦合在以振荡器装置配置的第一放大器（103）和第二放大器（105）之间的输入谐振电路（101）。 用于辐射射频能量的输出振荡电路（107,122）耦合在第一和第二放大器（103,105）的输出端（106,110）之间。 输出电路（107,122）辐射由第一和第二放大器（103,105）提供的能量。

公开(公告)号：WO1990015477A1

公开(公告)日：1990-12-13

申请号：PCT/US1990002705

申请日：1990-05-18

Applicant: MOTOROLA, INC.

Inventor： MOTOROLA, INC. ,  HIGGINS, Robert, Jacob, Jr. ,  OOMS, William, Jay ,  IRWIN, James, Stuart

IPC: H03B05/36

CPC classification number: H03B5/366 ,  H03B2200/0008

Abstract: A crystal oscillator circuit (5) for use with overtone crystals (70) restricts its resonant frequency to either fundamental or overtone frequencies. An inverting amplifier (10), which provides 180 degrees of phase shift by inverting an input signal, includes components which effectively provide another 180 degree phase shift at a particular frequency by adding a time delay. The 180 degree phase shift by a signal inverting amplifier, with the included 180 degree phase shift provided by the time delay comprises an oscillator by the addition of a crystal with a resonant frequency equal to the time of a 180 degree time period for the signal. Suppression of unwanted oscillation frequencies is accomplished by adjusting a current source (20), which changes time delay, without using inductors or other reactive components.

Abstract translation: 用于泛音晶体（70）的晶体振荡器电路（5）将其谐振频率限制为基波或泛音频率。 通过反相输入信号提供180度相移的反相放大器（10）包括通过添加时间延迟在特定频率处有效地提供另一180度相移的分量。 由信号反相放大器进行的180度相移，具有由时间延迟提供的包含的180度相移包括通过添加具有等于信号的180度时间周期的谐振频率的晶体的振荡器。 通过调节电流源（20）来实现不需要的振荡频率的抑制，电流源（20）改变时间延迟，而不使用电感器或其他反应分量。

公开(公告)号：WO1997036369A2

公开(公告)日：1997-10-02

申请号：PCT/IB1997000274

申请日：1997-03-20

Applicant: PHILIPS ELECTRONICS N.V. ,  PHILIPS PATENTVERWALTUNG GMBH ,  PHILIPS NORDEN AB ,  DICK, Burkhard

Inventor： PHILIPS ELECTRONICS N.V. ,  PHILIPS PATENTVERWALTUNG GMBH ,  PHILIPS NORDEN AB

IPC: H03B05/36

CPC classification number: H03B5/36 ,  H04B1/04

Abstract: An oscillator is described comprising a (first) amplifier element which has a control terminal and a main current path ending in a first and a second output terminal, the oscillator including a network through which the first output terminal of the (first) amplifier element is fed back to the control terminal of the (first) amplifier element by a series-arranged piezoelectric oscillation element, and including a (first) output dipole coupled to the first output terminal of the (first) amplifier element and including a DC current defining element coupled to the second output terminal of the (first) amplifier element. With this invention the very large capacitor necessary for this "Pierce oscillator" is replaced by a second amplifier element which has a main current path ending on one side in a (second) output terminal, this (second) output terminal of the second amplifier element being coupled to the second output terminal of the first amplifier element. In a further embodiment this "Pierce oscillator" according to the invention has a small power consumption, a high frequency stability, a very brief transient period and a very simple structure.

Abstract translation: 描述了一种振荡器，其包括具有控制端和在第一和第二输出端结束的主电流路径的（第一）放大器元件，振荡器包括网络，第一（第一）放大器元件的第一输出端通过该网络 通过串联布置的压电振荡元件反馈到（第一）放大器元件的控制端子，并且包括耦合到（第一）放大器元件的第一输出端子的（第一）输出偶极子，并且包括直流电流限定元件 耦合到（第一）放大器元件的第二输出端子。 利用本发明，该“皮尔斯振荡器”所需的非常大的电容器被第二放大器元件代替，该第二放大器元件具有在（第二）输出端子的一侧上结束的主电流通路，该第二放大器元件 耦合到第一放大器元件的第二输出端子。 在另一实施例中，根据本发明的这种“皮尔斯振荡器”具有小功率消耗，高频稳定性，非常短暂的瞬态周期和非常简单的结构。

公开(公告)号：WO1989011180A1

公开(公告)日：1989-11-16

申请号：PCT/GB1989000420

申请日：1989-04-20

Applicant: PLESSEY OVERSEAS LIMITED ,  COWLEY, Nicholas, Paul

Inventor： PLESSEY OVERSEAS LIMITED

IPC: H03B05/36

CPC classification number: H03B5/36 ,  H03B1/04 ,  H03B2200/0098 ,  H03B2202/046 ,  H03B2202/08

Abstract: An oscillator is provided with an internal, high gain hysteresis effect so as to offset the linear regions thereof and avoid spikes upsetting the count of a reference divider controlling the oscillator. The oscillator comprises a pair of emitter coupled transistors (T1, T2). A crystal (10) and a capacitor (11) are connected between the collector of a first transistor (T2) and the base of a second transistor (T1). A third transistor (T3) is connected as a load in the collector of the second transistor.

Abstract translation: 提供振荡器具有内部的高增益滞后效应，以便偏移其线性区域，并避免尖峰镦粗控制振荡器的参考分压器的计数。 振荡器包括一对发射极耦合晶体管（T1，T2）。 晶体（10）和电容器（11）连接在第一晶体管（T2）的集电极和第二晶体管（T1）的基极之间。 第三晶体管（T3）作为负载连接在第二晶体管的集电极中。