公开(公告)号：US20170272082A1

公开(公告)日：2017-09-21

申请号：US15450370

申请日：2017-03-06

Applicant: SEIKO EPSON CORPORATION

Inventor： Naohisa OBATA ,  Takuya OWAKI

IPC: H03L1/04 ,  H03B1/02 ,  H03B5/32

CPC classification number: H03L1/04 ,  H01L2224/48091 ,  H01L2924/16195 ,  H03B1/02 ,  H03B5/32 ,  H03B2201/038 ,  H03L1/026 ,  H01L2924/00014

Abstract: A temperature-compensated oscillator includes a resonator element, an oscillating circuit, and a temperature compensation circuit, and a frequency deviation with respect to a frequency at a time point when power supply starts is within a range of ±8 ppb at a time point when 10 seconds elapse from when the power supply starts, within a range of ±10 ppb at a time point when 20 seconds elapse from when the power supply starts, and within a range of ±10 ppb at a time point when 30 seconds elapse from when the power supply starts.

公开(公告)号：US09219486B2

公开(公告)日：2015-12-22

申请号：US14479269

申请日：2014-09-05

Applicant: California Institute of Technology

Inventor： Mayank Raj ,  Azita Emami

IPC: H03B27/00 ,  H03K3/03 ,  H03L7/099

CPC classification number: H03K3/0315 ,  H03B27/00 ,  H03B2201/038 ,  H03L7/0995 ,  H03L7/24

Abstract: Technologies are generally described for quadrature-based injection-locking of ring oscillators. In some examples, an external signal may be injected into a ring oscillator. Phase signals may be measured from within the ring oscillator and used to determine a mean quadrature error (MQE) that characterizes the difference in frequency between the external signal and the ring oscillator's natural frequency. A control signal may then be generated from the MQE and used to adjust the ring oscillator natural frequency to reduce the difference between the ring oscillator natural frequency and the external signal.

Abstract translation: 技术通常被描述为用于环形振荡器的正交注入锁定。 在一些示例中，外部信号可以被注入到环形振荡器中。 相位信号可以从环形振荡器内测量，并用于确定表征外部信号和环形振荡器固有频率之间的频率差的均方根误差（MQE）。 然后可以从MQE生成控制信号，并用于调整环形振荡器固有频率以减小环形振荡器固有频率与外部信号之间的差异。

公开(公告)号：US09190952B1

公开(公告)日：2015-11-17

申请号：US14263289

申请日：2014-04-28

Applicant: Marvell International LTD.

Inventor： Sehat Sutardja

IPC: H03B5/12 ,  H03L5/00

CPC classification number: H03B5/1228 ,  H03B5/1212 ,  H03B5/1215 ,  H03B5/1278 ,  H03B5/129 ,  H03B2200/0062 ,  H03B2201/031 ,  H03B2201/038 ,  H03L5/00

Abstract: A circuit including a tank circuit, a pair of transistors, a bias circuit, and a capacitor. The transistors include (i) drain terminals coupled to the tank circuit, (ii) source terminals coupled to each other, and (iii) gate terminals cross-coupled to the drain terminals via a pair of capacitors. The bias circuit is coupled to the gates of the pair of transistors to i) alternatingly turn on the pair of transistors during a plurality of peaks of an oscillating signal of the tank circuit, and ii) turn off the pair of transistors during a plurality of crossing points of the oscillating signal. The capacitor is coupled to (i) the tank circuit and (ii) the pair of transistors.

Abstract translation: 包括储能电路，一对晶体管，偏置电路和电容器的电路。 晶体管包括（i）耦合到储能电路的漏极端子，（ii）彼此耦合的源极端子，以及（iii）通过一对电容器与漏极端子交叉耦合的栅极端子。 所述偏置电路耦合到所述一对晶体管的栅极，以便i）在所述储能电路的振荡信号的多个峰值期间交替地导通所述一对晶体管，以及ii）在多个晶体管的多个峰值期间关断所述一对晶体管 交叉点的振荡信号。 电容器耦合到（i）储能电路和（ii）一对晶体管。

公开(公告)号：US20130335150A1

公开(公告)日：2013-12-19

申请号：US13872752

申请日：2013-04-29

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Akihide SAI

IPC: H03L7/099

CPC classification number: H03L7/0991 ,  H03B2201/038 ,  H03B2202/042 ,  H03L1/00 ,  H03L7/085 ,  H03L7/099 ,  H03L2207/06 ,  H03L2207/50

Abstract: According to one embodiment, a phase locked loop (PLL) circuit includes an application unit, a correlator, an integrator and a power supply noise canceller. The application unit applies the test signal to a power supply voltage. The correlator extracts a frequency error signal as a monitor signal and calculates a correlation value for the test signal and the monitor signal to generate a correlation signal. The integrator integrates the correlation signal to generate an integral signal. The power supply noise canceller provides a cancellation gain corresponding to the integral signal to the power supply voltage to which the test signal is applied, to generate a control signal.

Abstract translation: 根据一个实施例，锁相环（PLL）电路包括应用单元，相关器，积分器和电源噪声消除器。 应用单元将测试信号应用于电源电压。 相关器提取频率误差信号作为监视信号，并且计算测试信号和监视信号的相关值以产生相关信号。 积分器对相关信号进行积分以产生积分信号。 电源噪声消除器提供对应于与施加测试信号的电源电压的积分信号相对应的消除增益，以产生控制信号。

公开(公告)号：US20010050596A1

公开(公告)日：2001-12-13

申请号：US09870816

申请日：2001-05-31

Applicant: Alps Electric Co., Ltd.

Inventor： Kazuhiro Nakano ,  Hiroki Noumi ,  Isao Hasegawa

IPC: H03B005/12 ,  H03B005/18 ,  H03J005/24 ,  H03J007/08

CPC classification number: H03B5/1847 ,  H03B5/1203 ,  H03B5/1231 ,  H03B5/1243 ,  H03B5/1262 ,  H03B2201/0208 ,  H03B2201/0258 ,  H03B2201/038

Abstract: In a three-band switching oscillator, a switching circuit is provided to switch the operating conditions of first and second voltage-controlled oscillator and to switching an oscillation frequency band of said first voltage-controlled oscillator, and is composed of a first switch for supplying a current to place the first voltage-controlled oscillator into operation, a second switch for supplying a current to place the second voltage-controlled oscillator into operation, and first and second switching terminals for receiving switching voltages. The switching circuit switches the first switch in accordance with a switching voltage inputted to the first switching terminal and switches an oscillation frequency band in accordance with a switching voltage inputted to the second switching terminal, while only when a high-level switching voltage is inputted to the second switching terminal, the second switch is placed into an open condition by a high-level switching voltage inputted to the first switching terminal and placed into a closed condition by a low-level switching voltage inputted thereto, and when a low-level switching voltage is inputted to the second switching terminal, the second switch is placed into the open condition irrespective of the switching voltage inputted to the first switching terminal.

Abstract translation: 在三频开关振荡器中，提供开关电路来切换第一和第二压控振荡器的工作条件，并切换所述第一压控振荡器的振荡频带，并由第一开关供给 用于将第一压控振荡器置于运行状态的电流，用于提供电流以使第二压控振荡器工作的第二开关，以及用于接收开关电压的第一和第二开关端子。 开关电路根据输入到第一开关端子的开关电压来切换第一开关，并且根据输入到第二开关端子的开关电压来切换振荡频带，而仅当高电平切换电压被输入到 第二开关端子，第二开关被输入到第一开关端子的高电平开关电压置于开路状态，并通过输入到其的低电平开关电压置于闭合状态，并且当低电平开关 电压被输入到第二开关端子，第二开关被置于打开状态，而与输入到第一开关端子的开关电压无关。

公开(公告)号：US11984848B2

公开(公告)日：2024-05-14

申请号：US17310225

申请日：2021-02-04

Applicant: 2pi-Labs GmbH

Inventor： Timo Jaeschke ,  Simon Kueppers

IPC: H03B19/14 ,  G01S7/40 ,  H03B1/02 ,  H03C1/36 ,  H03K7/08

CPC classification number: H03B19/14 ,  G01S7/4013 ,  H03B1/02 ,  H03C1/36 ,  H03K7/08 ,  H03B2201/038

Abstract: The present invention relates to a frequency generator arrangement having an oscillator for generating an oscillator signal having an oscillator frequency and an oscillator output for outputting the oscillator signal, the frequency generator arrangement further comprising a frequency multiplier coupled and/or connected to an oscillator output for generating an output signal of the frequency generator arrangement having a multiplier frequency corresponding to a multiple of the oscillator frequency, wherein the frequency multiplier comprises a frequency multiplier core directly causative of the frequency multiplication, the frequency multiplier core having a power supply, and the frequency generator arrangement having a control input for controlling the power supply to the frequency multiplier core, whereby an output power of the output signal is adjustable by controlling the power supply to the frequency multiplier core.

公开(公告)号：US11909355B2

公开(公告)日：2024-02-20

申请号：US17942850

申请日：2022-09-12

Applicant: Apple Inc.

Inventor： Hongrui Wang ,  Abbas Komijani

IPC: H03L1/00 ,  H04B1/40 ,  H03B5/12

CPC classification number: H03B5/12 ,  H03L1/00 ,  H04B1/40 ,  H03B2200/009 ,  H03B2200/0092 ,  H03B2201/038

Abstract: To prevent an undesired operating mode of voltage-controlled oscillation (VCO) circuitry from dominating a desired operating mode (e.g., an in-phase operating mode or an out-of-phase operating mode), a supply reset and ramp pulse may be provided to the VCO circuitry when switching to a new mode, such that supply voltage to the VCO circuitry is reset (e.g., set to 0 V or another reference voltage), and gradually increased or ramped up back to a steady-state voltage (e.g., used to maintain a mode) within a time duration. Additionally or alternatively, a switch control bootstrap pulse may be provided to the VCO circuitry that is bootstrapped to (e.g., applied instantaneously or concurrently with) switching the VCO circuitry to the new mode. After a time duration, the VCO circuitry may switch back to a steady-state voltage (e.g., used to maintain the new mode).

公开(公告)号：US09319031B2

公开(公告)日：2016-04-19

申请号：US14225079

申请日：2014-03-25

Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA

Inventor： Michael M. Green ,  Xiaoyan Gui

IPC: H03K3/03 ,  H03K3/011 ,  H03B5/04 ,  H03B27/00 ,  H03L1/00

CPC classification number: H03K3/0322 ,  H03B5/04 ,  H03B27/00 ,  H03B2201/038 ,  H03B2202/042 ,  H03K3/011 ,  H03L1/00

Abstract: High-speed CMOS ring voltage controlled oscillators with low supply sensitivity have been disclosed. According to one embodiment, a CML ring oscillator comprises a CML negative impedance compensation circuit comprising two cross coupled transistors and a resistor connected to the two transistors for resistive biasing and a CML interpolating delay cell connected in parallel with the CML negative impedance compensation. An impedance change of the CML negative impedance compensation due to supply variation counteracts an impedance change of the CML interpolating delay cell.

Abstract translation: 已经公开了具有低供应灵敏度的高速CMOS环形电压控制振荡器。 根据一个实施例，CML环形振荡器包括CML负阻抗补偿电路，其包括两个交叉耦合晶体管和连接到两个用于电阻偏置的晶体管的电阻器以及与CML负阻抗补偿并联连接的CML内插延迟单元。 由于电源变化引起的CML负阻抗补偿的阻抗变化抵消了CML内插延迟单元的阻抗变化。

公开(公告)号：US20150042410A1

公开(公告)日：2015-02-12

申请号：US14453979

申请日：2014-08-07

Applicant: Seiko Epson Corporation

Inventor： Tsuyoshi YONEYAMA

IPC: H03B5/36 ,  H03B1/02

CPC classification number: H03B5/36 ,  H03B5/04 ,  H03B5/30 ,  H03B2201/0208 ,  H03B2201/025 ,  H03B2201/038 ,  H03L1/022 ,  H03L1/026 ,  H03L1/028

Abstract: An oscillation circuit includes a temperature compensating section to which electric power is supplied from a main power supply and a backup power supply, an oscillating section, a function of which is compensated by a signal from the temperature compensating section, and a switch and a power-supply monitoring circuit configured to select, when the temperature compensating section is not operating, at least one of the main power supply and the backup power supply and control connection to the temperature compensating section.

Abstract translation: 振荡电路包括从主电源和备用电源供给电力的温度补偿部，其功能由来自温度补偿部的信号补偿的振荡部，以及开关和功率 所述供电监视电路被配置为当所述温度补偿部不工作时，选择所述主电源和所述备用电源和所述温度补偿部的控制连接中的至少一个。

公开(公告)号：US08604889B2

公开(公告)日：2013-12-10

申请号：US12743177

申请日：2008-11-07

Applicant: David L. Duperray

Inventor： David L. Duperray

IPC: H03B1/00

CPC classification number: H03B5/1215 ,  H03B5/1228 ,  H03B5/1243 ,  H03B5/1253 ,  H03B5/1265 ,  H03B5/1278 ,  H03B5/129 ,  H03B2201/038

Abstract: An LC oscillator is provided that achieves improved phase noise performance. A variable frequency oscillator includes a variable supply source, an oscillator tank circuit, a variable capacitance circuit comprising MOS switches, and an oscillator tank voltage common mode adjustment circuit. When the capacitance of the variable capacitance circuit is varied to vary an output frequency of the variable frequency oscillator, the common mode voltage is adjusted to reduce transitions of the MOS switches between an inversion state and a depletion state during excursions of an output signal through one cycle of oscillation.

Abstract translation: 提供了一种可提高相位噪声性能的LC振荡器。 可变频率振荡器包括可变电源，振荡器电路，包括MOS开关的可变电容电路和振荡器电压共模调整电路。 当可变电容电路的电容改变以改变可变频率振荡器的输出频率时，调节共模电压以减少输出信号通过一个偏移期间的反相状态和耗尽状态之间的MOS开关的转变 振荡周期。