公开(公告)号：US5748050A

公开(公告)日：1998-05-05

申请号：US625452

申请日：1996-03-29

Applicant: Michael B. Anderson

Inventor： Michael B. Anderson

IPC: H03B1/00 ,  H03B5/24 ,  H03K3/03 ,  H03K3/354 ,  H03L7/099 ,  H03B5/00

CPC classification number: H03L7/0995 ,  H03B5/24 ,  H03K3/0315 ,  H03K3/354 ,  H03B2201/02

Abstract: A voltage controlled oscillator (VCO) having a generally linear transfer characteristic across a wide frequency range of operation. The VCO is comprised of a voltage-to-current converter (V-I) and a current-controlled oscillator (ICO). A linearization of the output response of the VCO is accomplished by proper selection of the output responses of the V-I and ICO circuits, where the V-I portion is designed to have an inverse nonlinearity response as compared to the nonlinearity response of the ICO portion of the VCO. The combined effect is a linear response for the VCO. A nonlinear V-I characteristic can be achieved by adding several piecewise linear responses together to produce a combined nonlinear response.

Abstract translation: 一种压控振荡器（VCO），其在宽的频率操作范围内具有大致线性的传递特性。 VCO由电压 - 电流转换器（V-I）和电流控制振荡器（ICO）组成。 VCO的输出响应的线性化通过对VI和ICO电路的输出响应的适当选择来实现，其中VI部分被设计为具有与VCO的ICO部分的非线性响应相比的反非线性响应 。 组合效应是VCO的线性响应。 可以通过将多个分段线性响应加在一起以产生组合的非线性响应来实现非线性V-I特性。

公开(公告)号：US5712599A

公开(公告)日：1998-01-27

申请号：US665954

申请日：1996-06-19

Applicant: Leonard L. Kleinberg

Inventor： Leonard L. Kleinberg

IPC: H03B1/00 ,  H03B5/24 ,  H03B5/12

CPC classification number: H03B5/24 ,  H03B2201/0275

Abstract: An oscillating signal generator for generating an oscillating signal having a variable oscillation frequency that can be near the unity gain frequency of the gain devices within the oscillating signal generator (Generation of High-Frequency Oscillating Signal Techniques, "GHOST"). Two gain stages, each with a respective effective resistance R.sub.eff, an emitter load capacitance C.sub.E, and a respective gain device having a unity gain frequency .omega..sub.T, are cascaded and configured to provide a respective gain with a phase at substantially 180.degree.. In that case, the oscillation frequency, of the oscillating signal generated by the oscillating signal generator of the present invention, .omega.=�.omega..sub.T /(R.sub.eff C.sub.E)!.sup.1/2. A feedback with a feedback gain is provided between the output to the input of the cascade of the two gain stages. The feedback gain is designed such that a product of the feedback gain and the gain through the cascade of the two gain stages is substantially one. The oscillation frequency of the oscillating signal generated by the oscillator can be varied by a corresponding variation to .omega..sub.T and/or R.sub.eff. Alternatively, the oscillation frequency can be substantially fixed at a predetermined resonance frequency determined by a frequency determining network operatively connected to the cascade of the two gain stages. The oscillating signal generator of the present invention which can generate sine waves can be implemented with circuit elements that are easily fabricated on-chip within a monolithic integrated circuit. In addition, because oscillation frequencies near the unity gain frequency of the gain devices can be achieved, higher frequencies for a given power dissipation or lower power dissipation for a given frequency can be obtained.

Abstract translation: 振荡信号发生器，用于产生具有可接近于振荡信号发生器内的增益器件的单位增益频率的可变振荡频率的振荡信号（产生高频振荡信号技术，“GHOST”）。 具有相应有效电阻Reff，发射极负载电容CE和具有单位增益频率ωT的相应增益器件的两个增益级被级联和配置以提供具有大致180度的相位的相应增益。 在这种情况下，由本发明的振荡信号发生器产生的振荡信号的振荡频率为ω= [ω/（ReffCE）] + E，fra 1/2 + EE。 具有反馈增益的反馈在两个增益级的级联输入之间提供。 反馈增益被设计成使得通过两个增益级的级联的反馈增益和增益的乘积基本上是一个。 由振荡器产生的振荡信号的振荡频率可以通过与ωT和/或Reff的相应变化来改变。 或者，振荡频率可以基本上固定在由可操作地连接到两个增益级的级联的频率确定网络确定的预定谐振频率上。 可产生正弦波的本发明的振荡信号发生器可以利用在单片集成电路内易于制造在片上的电路元件来实现。 此外，由于可以实现增益器件的单位增益频率附近的振荡频率，因此可以获得给定功率的较高频率或给定频率的较低功耗。

公开(公告)号：US5581215A

公开(公告)日：1996-12-03

申请号：US492559

申请日：1995-06-20

Applicant: Hiroshi Ogasawara

Inventor： Hiroshi Ogasawara

IPC: H04N5/12 ,  H03B5/08 ,  H03B5/24 ,  H03J7/06 ,  H03K23/66 ,  H03L7/197 ,  H04N5/50

CPC classification number: H03L7/1974 ,  H03B5/24 ,  H03J7/06 ,  H03K23/667 ,  H04N5/50

Abstract: A voltage controlled oscillator that completely eliminates the need for any externally mounted coil and capacitor includes a first loop and a second loop. The first loop provides band-limiting of an output signal of an amplifier through a bandpass filter to provide oscillation at a frequency of a resonant point of the bandpass filter, and the second loop controls the oscillation amplitude, so that a lowpass filter output with a 90.degree. phase is extracted from the first loop, while a bandpass filter output with a 0.degree. phase is extracted from the second loop. The voltage controlled oscillator may be used in an automatic fine tuning circuit for television.

Abstract translation: 完全不需要任何外部安装的线圈和电容器的压控振荡器包括第一回路和第二回路。 第一个环路通过带通滤波器提供放大器的输出信号的频带限制，以在带通滤波器的谐振点的频率处提供振荡，并且第二环路控制振荡幅度，使得具有 从第一回路提取90°相位，同时从第二回路提取输出0°相位的带通滤波器。 压控振荡器可用于电视机的自动微调电路。

公开(公告)号：US5574515A

公开(公告)日：1996-11-12

申请号：US573095

申请日：1995-12-15

Applicant: Hiroshi Ogasawara

Inventor： Hiroshi Ogasawara

IPC: H04N5/12 ,  H03B5/08 ,  H03B5/24 ,  H03J7/06 ,  H03K23/66 ,  H03L7/197 ,  H04N5/50 ,  H04N5/44

CPC classification number: H03L7/1974 ,  H03B5/24 ,  H03J7/06 ,  H03K23/667 ,  H04N5/50

Abstract: A voltage controlled oscillator that completely eliminates the need for any externally mounted coil and capacitor, and an automatic fine tuning circuit for television which is inexpensive and highly accurate are provided.A first loop and a second loop are provided, said first loop for band-limiting an output signal of an amplifier through a bandpass filter to provide oscillation at a frequency of a resonant point of the bandpass filter, and said second loop for controlling the oscillation amplitude, so that a lowpass filter output with a 90.degree. phase is extracted from the first loop, while a bandpass filter output with a 0.degree. phase is extracted from the second loop. Divide-by-N and divide-by-(N+1) operations selected according to a radio of the television IF frequency and reference frequency are performed multiple times, respectively, to output as its divided frequency an average of both divisions such that the average is close to the reference frequency; and an error signal corresponding to a phase frequency difference between the resulting divided frequency and the reference frequency is outputted to control the oscillation frequency of the TV tuner oscillation circuit to a constant level.

Abstract translation: 提供了完全不需要任何外部安装的线圈和电容器的压控振荡器，以及廉价且高精度的用于电视的自动微调电路。 提供第一环路和第二环路，所述第一环路用于通过带通滤波器对放大器的输出信号进行频带限幅，以提供带通滤波器的谐振点的频率处的振荡，以及用于控制振荡的第二回路 振幅，使得从第一回路提取具有90°相位的低通滤波器输出，而从第二回路提取具有0°相位的带通滤波器输出。 分别执行根据电视IF频率和参考频率的无线电选择的按N分频（N + 1）操作和分频（N + 1）操作，以分割频率输出两个分区的平均值，使得 平均值接近参考频率; 输出对应于所得到的分频和参考频率之间的相位频率差的误差信号，以将TV调谐器振荡电路的振荡频率控制在一定的水平。

公开(公告)号：US5564089A

公开(公告)日：1996-10-08

申请号：US49938

申请日：1993-04-20

Applicant: Raymond L. Barrett, Jr.

Inventor： Raymond L. Barrett, Jr.

IPC: H03B1/00 ,  H03B5/24 ,  H03F3/45 ,  H04B1/26 ,  H03B5/20

CPC classification number: H03B5/24 ,  H03F3/4521 ,  H03B2201/02 ,  H03F2203/45656 ,  H03F2203/45674

Abstract: A current controlled variable frequency oscillator (260) operates at a characteristic frequency that is determined primarily by a scaled current. A filter cascade (320) receives the scaled current for setting a filter cascade frequency substantially equal to the characteristic frequency. Additionally, the filter cascade (320) receives a triangular signal at a non-inverting input, the filter cascade (320) converting the triangular signal into a sinewave signal. A lowpass filter (330) receives the scaled current for setting a lowpass filter frequency to a frequency substantially less than the characteristic frequency. The lowpass filter (330) also receives the sinewave signal and provides an average signal therefrom. A comparator (340) receives the scaled current, wherein the comparator (340) compares the sinewave signal and the average signal for providing a substantially squarewave signal therefrom. An integrator (310) is provided for receiving the scaled current, the integrator (310) integrating the substantially squarewave signal for providing the triangular signal therefrom.

Abstract translation: 电流控制可变频率振荡器（260）以主要由缩放电流确定的特征频率工作。 滤波器级联（320）接收缩放的电流，用于设置基本上等于特征频率的滤波器级联频率。 另外，滤波器级联（320）在非反相输入端接收三角形信号，滤波器级联（320）将三角形信号转换为正弦波信号。 低通滤波器（330）接收用于将低通滤波器频率设置为基本小于特征频率的频率的缩放电流。 低通滤波器（330）还接收正弦波信号并从其提供平均信号。 比较器（340）接收缩放的电流，其中比较器（340）比较正弦波信号和平均信号以从其提供基本上方波的信号。 提供积分器（310）用于接收定标电流，积分器（310）积分基本上方波信号以从其提供三角形信号。

公开(公告)号：US4973920A

公开(公告)日：1990-11-27

申请号：US438288

申请日：1989-11-16

Applicant: Wolfdietrich G. Kasperkovitz

Inventor： Wolfdietrich G. Kasperkovitz

IPC: H03B1/00 ,  H03B5/20 ,  H03B5/24 ,  H03B27/00

CPC classification number: H03B5/20 ,  H03B2200/0062 ,  H03B2200/0066 ,  H03B2200/0078 ,  H03B2201/02 ,  H03B27/00 ,  H03B5/24

Abstract: A controllable quadrature oscillator, having a pair of oscillator outputs for supplying a pair of phase quadrature oscillator signals, is a cascade circuit of two quadrature sections incorporated in a regenerative loop each contributing a 90.degree. phase shift in the regenerative state of the loop. In order to increase the frequency control range of such a controllable quadrature oscillator and to enable realization by integrated circuit technology, each quadrature section is formed of two stages in cascade arranged in a signal path between an input terminal and an output terminal for the quadrature section. One of the stages includes a first amplifier having a low-pass characteristic and the other of the stages includes a second amplifier having a low-pass characteristic and having a feedback path. The gain of at least one of the two amplifiers is controllable for controlling the frequency of the pair of phase quadrature oscillator signals.

公开(公告)号：US3955154A

公开(公告)日：1976-05-04

申请号：US571708

申请日：1975-04-25

Applicant: Tadao Sasaki ,  Katsuaki Tsurushima

Inventor： Tadao Sasaki ,  Katsuaki Tsurushima

IPC: H01L21/331 ,  H01L27/07 ,  H01L29/00 ,  H01L29/73 ,  H03B5/12 ,  H03B5/24

CPC classification number: H03B5/24 ,  H01L27/0716 ,  H01L29/00 ,  H03B5/1203 ,  H03B5/1231

Abstract: An oscillator circuit is provided which employs a single active element. In particular, the circuit utilizes a novel four-terminal semiconductor device which is able to act as a transistor with three of its terminals and, in case of use as the transistor, has the emitter-grounded current amplification factor h.sub.FE controllable with a voltage at its fourth terminal. When the novel four-terminal semiconductor device is connected so as to operate as an emitter-grounded transistor, voltage changes at its output terminal, which corresponds to the collector of the transistor, is the same in phase as voltage changes at its fourth terminal. This fact is utilized in the present invention to cause oscillation by the generative feedback from the output terminal to the fourth terminal.

Abstract translation: 提供了使用单个有源元件的振荡器电路。 特别地，该电路利用了一种新颖的四端子半导体器件，其能够用作其三个端子的晶体管，并且在用作晶体管的情况下具有可由电压在 其第四站。 当新颖的四端子半导体器件被连接以作为发射极接地晶体管工作时，其对应于晶体管的集电极的其输出端子处的电压变化与其第四端子处的电压变化相同。 这个事实在本发明中用于通过从输出端到第四端的生成反馈引起振荡。

公开(公告)号：US3917964A

公开(公告)日：1975-11-04

申请号：US24506362

申请日：1962-12-17

Applicant: RCA CORP

Inventor： CARLSON DAVID J

IPC: H03G3/10 ,  D06B23/10 ,  H01L21/00 ,  H01L23/485 ,  H01L27/00 ,  H01L27/088 ,  H01L29/00 ,  H01L29/78 ,  H03B5/24 ,  H03D7/12 ,  H03F1/26 ,  H03F3/191 ,  H03F3/193 ,  H03G1/00 ,  H03G3/30 ,  H03K3/26 ,  H03K19/08

CPC classification number: H03G3/3052 ,  D06B23/10 ,  H01L21/00 ,  H01L23/485 ,  H01L27/00 ,  H01L27/088 ,  H01L29/00 ,  H01L2924/0002 ,  H01L2924/3011 ,  H03B5/24 ,  H03D7/125 ,  H03F1/26 ,  H03F3/191 ,  H03F3/193 ,  H03G1/0017 ,  H03G1/0029 ,  H01L2924/00

Abstract: 1. A signal translating circuit comprising, AN INSULATED-GATE FIELD-EFFECT TRANSISTOR OF THE TYPE HAVING GATE, SOURCE AND DRAIN ELECTRODES FORMED ON A SEMICONDUCTOR SUBSTRATE, CIRCUIT MEANS COUPLED BETWEEN SAID GATE AND SOURCE ELECTRODES FOR ESTABLISHING AN OPERATING CHARACTERISTIC OF SAID TRANSISTOR, INPUT CIRCUIT MEANS COUPLED BETWEEN SAID SUBSTRATE AND SAID SOURCE ELECTRODE FOR APPLYING SIGNALS TO BE TRANSLATED, AND OUTPUT CIRCUIT MEANS COUPLED BETWEEN SAID SOURCE AND DRAIN ELECTRODES FOR DEVELOPING OUTPUT SIGNALS CORRESPONDING TO THOSE APPLIED BETWEEN SAID SUBSTRATE AND SAID SOURCE ELECTRODE.

Abstract translation: 1.一种信号转换电路，包括：具有在半导体基板上形成的栅极，源极和漏极的类型的绝缘栅场效应晶体管，用于建立所述晶体管的操作特性的所述栅极与源极之间的电路， 用于施加转换信号的所述基板和所述源电极之间的输入电路耦合，以及用于产生与所述基板和所述电源电极之间应用的输出信号的所述源和漏电极之间的输出电路。

公开(公告)号：US3883826A

公开(公告)日：1975-05-13

申请号：US41532073

申请日：1973-11-13

Applicant: ICI LTD

Inventor： KIRBY IAN JOHN

IPC: H03B5/24 ,  H03K3/0231 ,  H03K4/06 ,  H03K4/94 ,  H03K3/295

CPC classification number: H03B5/24 ,  H03K3/0231 ,  H03K4/066 ,  H03K4/94

Abstract: This invention relates to an adjustable frequency oscillator comprising an integrator of the negative feedback operational amplifier type whose output is connected to a bistable-bipolar threshold device, a regenerative feedback connection between the output of the threshold device and an input of the integrator and an adjustable coupling unit for adjusting the amount of regenerative feedback.

Abstract translation: 本发明涉及一种可变频率振荡器，其包括负反馈运算放大器类型的积分器，其输出连接到双稳态双极性阈值器件，阈值器件的输出与积分器的输入之间的再生反馈连接以及可调整 用于调节再生反馈量的耦合单元。

公开(公告)号：USB392753I5

公开(公告)日：1975-01-28

申请号：US39275373

申请日：1973-08-29

IPC: H04M1/76 ,  H03B1/00 ,  H03B5/24 ,  H03B5/26 ,  H04L27/26 ,  H04M1/50 ,  H04Q1/45 ,  H04Q7/14

CPC classification number: H03B5/24 ,  H03B2201/01 ,  H04M1/50