公开(公告)号：US06271735B1

公开(公告)日：2001-08-07

申请号：US09455416

申请日：1999-12-06

Applicant: Josef Halamik ,  Frantisek Sukup ,  Jefferson W. Hall

Inventor： Josef Halamik ,  Frantisek Sukup ,  Jefferson W. Hall

IPC: H03B520

CPC classification number: H03K4/06 ,  H03K3/0231 ,  H03L1/02

Abstract: A controller oscillator provides a periodic output signal having first and second output level states. The oscillator is responsive to an applied saw tooth signal that varies between first and second voltages (Vlow,Vhigh). The oscillator is comprised of a comparator (82) the non-inverting input of which receives the saw tooth signal applied thereto to produce the periodic output signal at its output (86). A first voltage reference circuit (88, 90, and 92) generates the second voltage (Vhigh) that is applied to the inverting input of the comparator while the periodic output signal is at the first output level state and the input signal charges from the first voltage (Vlow) towards the second voltage. As the input signal becomes equal to the second voltage the output of the comparator switches to the second output level state and a second voltage reference (92,94, 96) provides the first voltage at the inverting input of the comparator.

Abstract translation: 控制器振荡器提供具有第一和第二输出电平状态的周期性输出信号。 振荡器响应于在第一和第二电压（Vlow，Vhigh）之间变化的施加的锯齿信号。 振荡器由比较器（82）组成，其同相输入端接收施加到其上的锯齿信号，以在其输出（86）产生周期性输出信号。 第一电压参考电路（88,90和92）产生施加到比较器的反相输入的第二电压（Vhigh），同时周期性输出信号处于第一输出电平状态，并且输入信号从第一电压 电压（Vlow）朝向第二电压。 当输入信号变得等于第二电压时，比较器的输出切换到第二输出电平状态，第二电压基准（92,94,96）在比较器的反相输入端提供第一电压。

公开(公告)号：US6150894A

公开(公告)日：2000-11-21

申请号：US270597

申请日：1999-03-18

Applicant: Yap Hwa Seng ,  Aruna Bopaiah Ajjikuttira

Inventor： Yap Hwa Seng ,  Aruna Bopaiah Ajjikuttira

IPC: H03L1/02 ,  H03L1/00

CPC classification number: H03L1/02

Abstract: An oscillator circuit, whose output signal has minimum fluctuation with changes in temperature, has an amplifier. Within the amplifier, a compensation resistor is connected to compensate for changes in amplitude and frequency of the output signal with temperature. A first impedance is connected between an output and a first input of the amplifier, a second impedance is connected between the first input and a second input, and a third impedance is connected between the output and the second input. A method for designing the oscillator begins by choosing an inductor with a high quality factor and a low temperature coefficient. The interconnections are designed to minimize temperature effects of parasitic impedances. A degenerative resistor is connected between the emitter of the bipolar transistor and the emitter resistor. The degenerative resistor varies in resistance with a change in temperature opposite that of an input resistance of the bipolar junction transistor. The first and second capacitors are selected to minimize the effect of variation of the parasitic impedance. The oscillator is converted to a frequency shift keying oscillator by adding frequency shifting means to modulate the frequency of the output signal between a first frequency and a second frequency according to a state of a digital input signal. The method of designing the oscillator as a frequency shift keying oscillator requires selecting an on-resistance of the frequency shifting means to prevent the first frequency and the second frequency from fluctuating with temperature.

Abstract translation: 一个振荡电路，其输出信号具有随温度变化的最小波动，具有放大器。 在放大器内部，连接补偿电阻，以补偿输出信号随温度变化的幅度和频率。 第一阻抗连接在放大器的输出端和第一输入端之间，第二阻抗连接在第一输入端和第二输入端之间，第三阻抗连接在输出端和第二输入端之间。 通过选择具有高品质因数和低温度系数的电感器，开始设计振荡器的方法。 互连被设计为最小化寄生阻抗的温度影响。 在双极晶体管的发射极和发射极电阻之间连接有退化电阻。 退化电阻随着与双极结型晶体管的输入电阻相反的温度变化而在电阻上变化。 选择第一和第二电容器以最小化寄生阻抗的变化的影响。 根据数字输入信号的状态，通过增加频移装置来将振荡器转换成频移键控振荡器，以调制第一频率和第二频率之间的输出信号的频率。 将振荡器设计为频移键控振荡器的方法需要选择频移装置的导通电阻以防止第一频率和第二频率随温度波动。

公开(公告)号：US6121848A

公开(公告)日：2000-09-19

申请号：US231456

申请日：1999-01-14

Applicant: Don Sauer

Inventor： Don Sauer

IPC: H03L1/02 ,  H03L7/02 ,  H03B5/12

CPC classification number: H03L7/02 ,  H03L1/02

Abstract: A thermal RC network is fabricated in silicon as a lateral array of forward-biased PN junctions, which may take the form of the base-emitter junctions of bipolar transistors. Application of a clock signal from a voltage controlled oscillator to the silicon produces a heat pulse which propagates across the arrayed transistors of the thermal RC network. The resulting change in temperature produces a change in the V.sub.be of the arrayed transistors. The phase shift between the original clock signal and the changed V.sub.be is determined solely by the time constant .tau. of the particular thermal RC network. This time constant is a function only of the intrinsic thermal resistance and thermal capacitance of the silicon and the spacing of the laterally-arrayed transistors. The time constant is independent of the amplitude, frequency, and duty cycle of the original clock signal. The original clock signal and the time-delayed output of the RC network can be compared, and the phase shift determined. A voltage corresponding to this phase shift is then generated and fed back into the voltage controlled oscillator, producing an output signal having a constant frequency.

Abstract translation: 热RC网络在硅中制造为正向偏置PN结的横向阵列，其可以采取双极晶体管的基极 - 发射极结的形式。 将来自压控振荡器的时钟信号施加到硅产生传播到热RC网络的阵列晶体管的热脉冲。 所产生的温度变化产生阵列晶体管的Vbe变化。 原始时钟信号和改变的Vbe之间的相移仅由特定热RC网络的时间常数τ决定。 该时间常数仅是硅的固有热阻和热电容以及横向排列的晶体管的间隔的函数。 时间常数与原始时钟信号的幅度，频率和占空比无关。 可以比较原始时钟信号和RC网络的时间延迟输出，并确定相移。 然后产生对应于该相移的电压并将其反馈到压控振荡器中，产生具有恒定频率的输出信号。

公开(公告)号：US6031427A

公开(公告)日：2000-02-29

申请号：US21649

申请日：1998-02-10

Applicant: Michael F. Black

Inventor： Michael F. Black

IPC: H03L1/02 ,  H03L7/12

CPC classification number: H03L7/12 ,  H03L1/02 ,  Y10S331/02

Abstract: A phase locked loop ("PLL") 28 containing apparatus for automatically causing the PLL to achieve phase lock when first energized or after having lost phase lock. In addition to a phase detector 4, loop filter 13, voltage controlled oscillator ("VCO") 14 and feedback from the VCO to the phase detector 16, the PLL has a sweep circuit 30. The sweep circuit cooperates with the loop filter when the PLL is not in phase lock to automatically generate a control voltage for the VCO which control voltage increases linearly with time until the PLL achieves phase lock or until the control voltage has reached the largest voltage in the dynamic input range of the VCO. In the event that phase lock is not achieved during the period of the increasing voltage, the control voltage decreases linearly with time to drive the PLL into phase lock.

Abstract translation: 一种锁相环（“PLL”）28，其包含用于在第一次通电时或在失去相位锁定之后自动使PLL实现锁相的装置。 除了相位检测器4，环路滤波器13，压控振荡器（“VCO”）14以及从VCO到相位检测器16的反馈之外，PLL具有扫描电路30.扫描电路与环路滤波器配合 PLL不会相位锁定，以自动产生VCO的控制电压，控制电压随时间线性增加，直到PLL达到锁相或直到控制电压达到VCO动态输入范围内的最大电压。 在电压增加期间没有实现相位锁定的情况下，控制电压随时间线性减小，以驱动PLL进入锁相。

公开(公告)号：US06023198A

公开(公告)日：2000-02-08

申请号：US93238

申请日：1998-06-08

Applicant: John K. McKinney ,  Lorenzo Cruger ,  Branko Avanic

Inventor： John K. McKinney ,  Lorenzo Cruger ,  Branko Avanic

IPC: H03L1/02 ,  H03L7/095 ,  H03L7/099 ,  H03L7/10 ,  H03L7/189 ,  H03L7/00

CPC classification number: H03L7/099 ,  H03L1/02 ,  H03L7/10 ,  H03L7/189 ,  H03L2207/06 ,  H03L7/095

Abstract: A self-tuning VCO (116) receives a control voltage input (Vcont) (114) and an adjustable programmable voltage (Vadj) (122) and provides optimized locked conditions even under variations in temperature. A radio temperature is measured and stored (204) while Vadj (122) is initialized and stepped and Vcont (114) attempts to lock the VCO on frequency. Once a locked condition is achieved, the Vcont (114) is monitored to determine if it falls within a predetermined voltage range. If a non-optimized condition is detected, then the Vadj (122) is automatically adjusted until the VCO (116) becomes locked with a Vcont which falls within the predetermined voltage range. When a locked condition is achieved, the radio temperature is monitored and compared (212) to the original stored temperature (204). If a temperature threshold limit is reached (216) then the VCO is re-checks itself for a locked condition and re-optimizes itself to accommodate for the variations in temperature.

Abstract translation: 自调谐VCO（116）接收控制电压输入（Vcont）（114）和可调可编程电压（Vadj）（122），并且即使在温度变化下也提供优化的锁定条件。 测量和存储无线电温度（204），同时Vadj（122）被初始化并且步进，并且Vcont（114）试图将VCO锁定在频率上。 一旦实现了锁定状态，则监视Vcont（114）以确定它是否落在预定的电压范围内。 如果检测到非优化条件，则Vadj（122）被自动调整，直到VCO（116）用落在预定电压范围内的Vcont锁定为止。 当达到锁定状态时，监测无线电温度并将其与原始存储温度（204）进行比较（212）。 如果达到温度阈值限制（216），则VCO将自动重新检测锁定状态，并自动重新优化以适应温度变化。

公开(公告)号：US5341112A

公开(公告)日：1994-08-23

申请号：US74255

申请日：1993-06-09

Applicant: Leo J. Haman

Inventor： Leo J. Haman

IPC: H03B5/04 ,  H03B5/36 ,  H03L1/02 ,  H03B5/12

CPC classification number: H03B5/36 ,  H03L1/02 ,  H03B2200/0008 ,  H03B2200/001 ,  H03B2200/0012 ,  H03B2200/0038 ,  H03B5/04 ,  H03B5/362

Abstract: A stabilized oscillation circuit includes a bias circuit which controllably biases a bipolar-transistor-driven crystal oscillator circuit. The bipolar-transistor-driven crystal oscillator circuit is a modified version of a conventional transistor-driven oscillator, such as a Hartley, Pierce or Colpitts-type circuit. The bias circuit includes a first current providing a reference current through a Schottky diode and a pair of bipolar transistors. The bipolar-transistor-driven crystal oscillator circuit includes an input and an output, where the input of the bipolar-transistor-driven crystal oscillator circuit is coupled to the bias circuit. The bipolar-transistor-driven crystal oscillator circuit includes a second current through a second bipolar transistor. The second current tracks the reference current so that the output of the bipolar-transistor-driven oscillator circuit is substantially constant over variations in ambient temperature.

Abstract translation: 稳定的振荡电路包括可控地偏置双极晶体管驱动的晶体振荡器电路的偏置电路。 双极晶体管驱动的晶体振荡器电路是常规晶体管驱动振荡器的修改版本，例如Hartley，Pierce或Colpitts型电路。 偏置电路包括提供通过肖特基二极管和一对双极晶体管的参考电流的第一电流。 双极晶体管驱动晶体振荡器电路包括输入和输出，其中双极晶体管驱动晶体振荡器电路的输入耦合到偏置电路。 双极晶体管驱动晶体振荡器电路包括通过第二双极晶体管的第二电流。 第二电流跟踪参考电流，使得双极晶体管驱动的振荡器电路的输出在环境温度的变化上基本上是恒定的。

公开(公告)号：US4714901A

公开(公告)日：1987-12-22

申请号：US787813

申请日：1985-10-15

Applicant: Babu L. Jain ,  Pardeep K. Jain ,  Michael S. Briner

Inventor： Babu L. Jain ,  Pardeep K. Jain ,  Michael S. Briner

IPC: H03K3/0231 ,  G05F3/24 ,  H03K3/011 ,  H03K3/03 ,  H03L1/02 ,  G05F3/26 ,  H02J1/04 ,  H03K3/354

CPC classification number: H03K3/011 ,  G05F3/245 ,  H03K3/03 ,  H03L1/02 ,  Y02P80/15

Abstract: A temperature compensated complementary metal-insulator-semiconductor oscillator receives a temperature independent reference voltage from an external source. The temperature independent reference voltage is attenuated and summed with a threshold voltage in order to bias a gate electrode of MOSFET. A bipolar p-n junction diode is connected to the MOSFET at a source electrode in order to bias the MOSFET with a temperature dependent forward voltage drop to compensate for temperature variations therein. The MOSFET controls a temperature independent current. A current mirror assembly receives the current and controls a Schmitt trigger oscillator. The Schmitt trigger oscillator generates a signal having a temperature independent constant period.

Abstract translation: 温度补偿的互补金属 - 绝缘体 - 半导体振荡器从外部源接收与温度无关的参考电压。 温度独立参考电压被衰减并与阈值电压相加，以便偏置MOSFET的栅电极。 双极p-n结二极管在源电极处连接到MOSFET，以便使具有温度相关的正向压降的MOSFET偏置以补偿其中的温度变化。 MOSFET控制与温度无关的电流。 电流镜组件接收电流并控制施密特触发振荡器。 施密特触发振荡器产生具有温度独立恒定周期的信号。

公开(公告)号：US4497998A

公开(公告)日：1985-02-05

申请号：US452606

申请日：1982-12-23

Applicant: Burnell G. West

Inventor： Burnell G. West

IPC: G04F5/10 ,  G05D23/20 ,  H03K3/03 ,  H03L1/02 ,  H05B1/00

CPC classification number: H03L1/02 ,  G05D23/2034

Abstract: A closed loop integrated circuit temperature stabilizer 10 has an on-chip temperature sensor 12 for supplying a voltage indication of temperature to an op amp 22 which maintains chip temperature equilibrium by controlling a load transistor 30 which draws current through on-chip heating means 16.

Abstract translation: 闭环集成电路温度稳定器10具有片上温度传感器12，用于通过控制通过片上加热装置16吸取电流的负载晶体管30向运算放大器22提供温度的电压指示，该运算放大器维持芯片温度平衡。

公开(公告)号：US3904989A

公开(公告)日：1975-09-09

申请号：US50756974

申请日：1974-09-19

Applicant: BELL TELEPHONE LABOR INC

Inventor： CORDELL ROBERT ROGER

IPC: H03K3/011 ,  H03K3/282 ,  H03K7/06 ,  H03L1/02 ,  H03K1/04

CPC classification number: H03K3/282 ,  H03K3/011 ,  H03K3/2821 ,  H03K7/06 ,  H03L1/02

Abstract: A high-speed temperature-compensated integrated circuit voltagecontrolled oscillator for use in applications such as phaselocked loops. The oscillator is a nonsaturating emitter-coupled multivibrator wherein temperature compensation is achieved by establishing virtually identical temperature dependency in the current which charges the multivibrator timing capacitor and in the voltage swing which appears across the timing capacitor.

Abstract translation: 用于诸如锁相环等应用的高速温度补偿集成电路压控振荡器。 振荡器是一种非均匀的发射极耦合多谐振荡器，其中通过在对多谐振荡器定时电容器充电的电流和在定时电容器两端出现的电压摆幅中建立实质上相同的温度依赖性来实现温度补偿。

公开(公告)号：US3854058A

公开(公告)日：1974-12-10

申请号：US39441073

申请日：1973-09-05

Applicant: AIRPAX ELECTRONICS

Inventor： KEITH A ,  NYE D ,  CARLSON P

IPC: H03K3/011 ,  H03K3/284 ,  H03L1/02 ,  H03K3/10

CPC classification number: H03K3/284 ,  H03K3/011 ,  H03L1/02

Abstract: Disclosed are temperature compensated one-shot multivibrator circuits particularly adapted for use in industrial tachometers. The one-shots have compensating diodes or transistor junctions in the collector circuits of the timing transistors. In some of the circuits the junctions are matched to insure equal current flow through both the compensated and compensating junctions. They produce pulses have a pulse width that is substantially constant over a wide temperature range.

Abstract translation: 公开了特别适用于工业转速计的温度补偿单稳态多谐振荡器电路。 单次拍摄在定时晶体管的集电极电路中具有补偿二极管或晶体管结。 在一些电路中，结点匹配以确保通过补偿和补偿结的相等电流。 它们产生的脉冲具有在宽的温度范围内基本恒定的脉冲宽度。