公开(公告)号：EP2439842A1

公开(公告)日：2012-04-11

申请号：EP10838944.6

申请日：2010-12-21

Applicant: Asahi Kasei Microdevices Corporation

Inventor： NEMOTO, Kenji ,  FURUYA, Tamami

IPC: H03B5/32

CPC classification number: H03B5/362 ,  H03B5/04 ,  H03B5/364 ,  H03B5/366 ,  H03B2201/031

Abstract: Provided is a temperature compensated oscillator includes an oscillation circuit for oscillating an oscillator. In the oscillator, when an oscillation frequency is changed by a second control signal after being controlled by a first control signal, variation in the oscillation frequency due to a second control signal is set to a fixed amount. The oscillation frequency of the oscillator is controlled on the basis of both the first control signal and the second control signal, but an oscillation amplitude adjusting section is also added, the oscillation amplitude adjusting section allowing the oscillation amplitude of the oscillator to be changed by the second control signal. The oscillator thus allows a fixed amount of oscillation frequency control over a wide range (full range) of oscillation frequency control due to the first control signal.

Abstract translation: 温度补偿振荡器包括振荡振荡器的振荡电路。 在振荡器中，当在被第一控制信号控制之后振荡频率被第二控制信号改变时，由于第二控制信号引起的振荡频率的变化被设定为固定量。 基于第一控制信号和第二控制信号来控制振荡器的振荡频率，但是也增加了振荡幅度调整部分，振荡器振幅调整部分使振荡器的振荡幅度由 第二控制信号。 因此，振荡器由于第一控制信号而允许在振荡频率控制的宽范围（全范围）内的固定量的振荡频率控制。

公开(公告)号：EP0909482A1

公开(公告)日：1999-04-21

申请号：EP97905657.0

申请日：1997-02-07

Applicant: Hewlett-Packard Company

Inventor： KARLQUIST, Richard, K.

IPC: H03L7 ,  H03B5 ,  H03L5 ,  H03B1

CPC classification number: H03L5/00 ,  H03B5/38 ,  H03B2201/0208 ,  H03B2201/031 ,  H03L7/02

Abstract: An apparatus and method are disclosed for improving the stability of the frequency of vibration of an oscillator signal produced by an oscillator circuit. In a preferred embodiment of the present invention, a quartz crystal resonator is one arm of a bridge which generates a bridge signal which varies in accordance with the vibrating frequency of the resonator. A synchronous demodulator responds to the bridge signal for producing an error signal. A control circuit receives the error signal and changes its reactance when the resonator is no longer vibrating at its unperturbed resonance frequency so that the vibration frequency of the resonator connected to the control circuit is returned to its resonant frequency. An automatic level control circuit is also included for controlling the drive level of the signal exciting the resonator.

公开(公告)号：EP0462304A1

公开(公告)日：1991-12-27

申请号：EP90111680.6

申请日：1990-06-20

Applicant: SIEMENS AKTIENGESELLSCHAFT

Inventor： Fenk, Josef, Dipl.-Ing.

IPC: H03L5/00

CPC classification number: H03L5/00 ,  H03B5/1209 ,  H03B5/1231 ,  H03B5/1271 ,  H03B2200/0066 ,  H03B2201/031 ,  H03B2201/038

Abstract: Verfahren zum Regeln der Amplitude des Ausgangssignales eines Oszillators, der mindestens einen Oszillatortransistor (T1, T2) aufweist, dessen Emitteranschluß über eine steuerbare Stromquelle (IE) an ein Versorgungspotential geschaltet ist und der - der Oszillator - ein frequenzbestimmendes Element (L,C) beispielsweise einen Schwingkreis - aufweist, das mindestens an den Basisanschluß oder an den Kollektoranschluß mindestens eines der Oszillatortransistoren angeschlossen ist, wobei die aus einer Amplitudenänderung des an dem Basisanschluß mindestens eines der Oszillatortransistoren anliegenden Signales resultierende Gleichspannungsänderung am Emitteranschluß (a) mindestens dieses einen Oszillatortransistors als Steuergröße für den Strom der steuerbaren Stromquelle vorgesehen ist sowie eine Schaltungsanordnung zur Durchführung eines solchen Verfahrens.

Abstract translation: 一种用于振荡器呈现出控制具有至少一个振荡器晶体管（T1，T2），其通过可控电流源（IE），并且连接到电源电势的所有发射极端子的振荡器的输出信号的幅度的方法 其至少连接到所述基极端子或到振荡器晶体管中的至少一个，所述直流电压变化从该信号的振幅变化而导致的集电极端子频率确定元件（L，C），对于实施例的谐振电路的所有 存在于振荡器晶体管中的至少一个的基极端子，在（a）至少这一个振荡器晶体管，被提供作为控制变量对所述可控电流源的电流的发射极端子，以及用于执行的电路布置 寻找的方法。

公开(公告)号：EP3235122A1

公开(公告)日：2017-10-25

申请号：EP15798642.3

申请日：2015-11-12

Applicant: Xilinx, Inc.

Inventor： BEKELE, Adebabay, M. ,  UPADHYAYA, Parag

IPC: H03B5/12

CPC classification number: H03B5/1253 ,  H03B5/1215 ,  H03B5/1228 ,  H03B5/1243 ,  H03B5/1265 ,  H03B5/1271 ,  H03B5/1278 ,  H03B5/129 ,  H03B2201/0208 ,  H03B2201/0266 ,  H03B2201/0291 ,  H03B2201/031 ,  H03B2201/038

Abstract: Voltage-controlled oscillation (100) is described. In an apparatus therefor, an inductor (120) has a tap and has or is coupled to a positive-side output node (105) and a negative side output node (106). The tap is coupled to receive a first current. A coarse grain capacitor array (130) is coupled to the positive-side output node (105) and the negative side output node (106) and is coupled to respectively receive select signals (168). A varactor (140) is coupled to the positive-side output node (105) and the negative side output node (106) and is coupled to receive a control voltage (143). The varactor (140) includes MuGFETs (141, 142). A transconductance cell (150) is coupled to the positive- side output node (105) and the negative side output node (106), and the transconductance cell (150) has a common node (107). A frequency scaled resistor network (160) is coupled to the common node (107) and is coupled to receive the select signals (168) for a resistance for a path for a second current.

Abstract translation: 描述电压控制振荡（100）。 在其设备中，电感器（120）具有抽头并且具有或者耦合到正侧输出节点（105）和负侧输出节点（106）。 抽头被耦合以接收第一电流。 粗粒度电容器阵列（130）耦合到正侧输出节点（105）和负侧输出节点（106）并且被耦合以分别接收选择信号（168）。 变容二极管（140）耦合到正侧输出节点（105）和负侧输出节点（106）并且被耦合以接收控制电压（143）。 变容二极管（140）包括MuGFET（141,142）。 跨导单元（150）耦合到正侧输出节点（105）和负侧输出节点（106），并且跨导单元（150）具有公共节点（107）。 频率调节电阻网络（160）耦合到公共节点（107）并且被耦合以接收用于第二电流的路径的电阻的选择信号（168）。

公开(公告)号：EP2439842A4

公开(公告)日：2017-10-18

申请号：EP10838944

申请日：2010-12-21

Applicant: ASAHI KASEI MICRODEVICES CORP

Inventor： NEMOTO KENJI ,  FURUYA TAMAMI

IPC: H03B5/04 ,  H03B5/36

CPC classification number: H03B5/362 ,  H03B5/04 ,  H03B5/364 ,  H03B5/366 ,  H03B2201/031

公开(公告)号：EP3217542A1

公开(公告)日：2017-09-13

申请号：EP17157728.1

申请日：2017-02-23

Applicant: COMMISSARIAT À L'ÉNERGIE ATOMIQUE ET AUX ÉNERGIES ALTERNATIVES

Inventor： MARTINEAU, Baudouin ,  GONZALEZ JIMENEZ, José-Luis ,  LARIE, Aurélien

IPC: H03B5/12

CPC classification number: H03B5/1234 ,  H03B5/1212 ,  H03B5/1215 ,  H03B5/1228 ,  H03B5/1243 ,  H03B5/1278 ,  H03B2200/004 ,  H03B2200/0062 ,  H03B2200/009 ,  H03B2201/031

Abstract: L'invention concerne un oscillateur commandable en tension, comportant un résonateur LC (301) commandable en tension comportant au moins un premier noeud de sortie (V out1 ) ; un amplificateur (303) comportant au moins un premier transistor MOS double grille (T1) comportant des première (fg) et deuxième (bg) grilles, reliant le premier noeud de sortie (V out1 ) à un deuxième noeud (GND) d'application d'un potentiel de référence ; et un circuit de régulation (305) adapté à appliquer sur la deuxième grille (bg) du premier (T1) transistor une tension de polarisation (V bg ) variable en fonction de l'amplitude des oscillations d'un signal fourni sur le premier noeud de sortie (V out1 ) de l'oscillateur.

Abstract translation: 本发明涉及一种电压可控振荡器，其包括具有至少第一输出节点（Vout1）的电压可控LC谐振器（301） 放大器（303），其具有至少一个第一MOS双栅极具有第一晶体管（T1）（FG）和第二（BG）网格，所述第一输出节点（Vout的1）连接到应用程序的一个第二节点（GND） 参考电位; 和一个控制电路（305）适于被施加到第一（T1）的第二栅极（BG）晶体管的偏置电压（VBG）可以根据提供给所述第一节点的信号的振幅变化 输出（Vout1）的振荡器。

公开(公告)号：EP1072087B1

公开(公告)日：2003-09-03

申请号：EP99920688.1

申请日：1999-04-15

Applicant: MOTOROLA GmbH

Inventor： LICHTERFELD, Stefan

IPC: H03B5/12

CPC classification number: H03C3/222 ,  H03B5/1203 ,  H03B5/1231 ,  H03B5/1243 ,  H03B2200/0008 ,  H03B2200/004 ,  H03B2201/0208 ,  H03B2201/031 ,  H03B2201/033

Abstract: A voltage controlled oscillator based on the Colpitt's design is provided. An inductor (Lc) is provided in parallel to one (Cs) of a pair of series connected capacitors (Cs, Cd). The present of the inductor (Lc) modifies the impedance ratio of the pair of series connected capacitors (Cs, Cd) by introducing a frequency dependence. This frequency dependence mitigates frequency dependent losses in a tuned circuit (Lr, Ct) in the voltage controlled oscillator. The invention provides an enhanced output signal over the frequency range of operation of the voltage controlled oscillator. The invention also improves the modulation of the voltage controlled oscillator's output signal which can be achieved by a separate modulation circuit (Cm, Rm, Vm).

公开(公告)号：EP1072087A1

公开(公告)日：2001-01-31

申请号：EP99920688.1

申请日：1999-04-15

Applicant: MOTOROLA GmbH

Inventor： LICHTERFELD, Stefan

IPC: H03B5/12

CPC classification number: H03C3/222 ,  H03B5/1203 ,  H03B5/1231 ,  H03B5/1243 ,  H03B2200/0008 ,  H03B2200/004 ,  H03B2201/0208 ,  H03B2201/031 ,  H03B2201/033

Abstract: A voltage controlled oscillator based on the Colpitt's design is provided. An inductor (Lc) is provided in parallel to one (Cs) of a pair of series connected capacitors (Cs, Cd). The present of the inductor (Lc) modifies the impedance ratio of the pair of series connected capacitors (Cs, Cd) by introducing a frequency dependence. This frequency dependence mitigates frequency dependent losses in a tuned circuit (Lr, Ct) in the voltage controlled oscillator. The invention provides an enhanced output signal over the frequency range of operation of the voltage controlled oscillator. The invention also improves the modulation of the voltage controlled oscillator's output signal which can be achieved by a separate modulation circuit (Cm, Rm, Vm).

公开(公告)号：US11942952B2

公开(公告)日：2024-03-26

申请号：US18089976

申请日：2022-12-28

Applicant: Telefonaktiebolaget LM Ericsson (publ)

Inventor： Christian Elgaard ,  Lars Sundström

IPC: H03L5/00 ,  H03B5/12

CPC classification number: H03L5/00 ,  H03B5/1278 ,  H03B2201/031

Abstract: An electronic device comprises a first feedback circuit operatively connected to an amplitude detector and a first control input of an oscillator. The first feedback circuit is configured to control an amplitude of an output of the oscillator by continuously applying a first control signal to the first control input in response to an amplitude detected by the amplitude detector. The electronic device further comprises a second feedback circuit operatively connected to the amplitude detector and a second control input of the oscillator. The second feedback circuit is configured to modify one or more amplitude regulating parameters of the oscillator by providing a second control signal in response to the amplitude being beyond an upper or lower amplitude threshold, and refrain from modifying the one or more amplitude regulating parameters when the amplitude is within the upper and lower amplitude thresholds.

公开(公告)号：US09621106B2

公开(公告)日：2017-04-11

申请号：US15013314

申请日：2016-02-02

Applicant: SEIKO EPSON CORPORATION

Inventor： Yosuke Itasaka ,  Noboru Itomi

IPC: H03B5/36

CPC classification number: H03B5/364 ,  H03B5/04 ,  H03B5/36 ,  H03B5/362 ,  H03B2201/0208 ,  H03B2201/031

Abstract: An oscillation circuit includes a circuit for oscillation that oscillates a resonator, an output circuit that has a signal, output from the circuit for oscillation, input thereto to thereby output an oscillation signal, a connection terminal to which power is applied, a first wiring that connects from the connection terminal to the output circuit, and a second wiring that is connected to the first wiring through a connection node provided on the first wiring and connects from the connection node to the circuit for oscillation. The circuit for oscillation, the output circuit, the connection terminal, the first wiring, and the second wiring are provided on a semiconductor substrate. The length of a wiring extending from the connection terminal of the first wiring to the connection node is shorter than the length of the second wiring.