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1. 发明授权

US09184734B1 Voltage or current controlled current-feedback operational-amplifier based multivibrator 有权
标题翻译：基于电压或电流控制的电流反馈运算放大器的多谐振荡器
公开(公告)号：US09184734B1
公开(公告)日：2015-11-10
申请号：US14532094
申请日：2014-11-04
申请人： King Fahd University of Petroleum and Minerals
发明人： Muhammad Taher Abuelma'atti , Zainulabideen Jamal Khalifa
IPC分类号： H03K7/06 , H03K4/52 , H03K3/0231 , H03K7/08
CPC分类号： H03K3/0231 , H03K3/017 , H03K4/52 , H03K7/08
摘要： A voltage or current controlled current-feedback operational-amplifier based multivibrator provides oscillation based on two current feedback operational amplifiers, three resistors and one grounded capacitor. The multivibrator can achieve almost constant frequency of oscillation and its duty cycle can be adjusted by a control voltage or a control current. The multivibrator can be used for generating pulse-width modulated signals.
摘要翻译：基于电压或电流控制的电流反馈运算放大器的多谐振荡器基于两个电流反馈运算放大器，三个电阻器和一个接地电容器提供振荡。多谐振荡器可以实现几乎恒定的振荡频率，其占空比可以通过控制电压或控制电流来调节。多谐振荡器可用于产生脉冲宽度调制信号。

2. 发明授权

US07659787B2 Circuit for generating clock of semiconductor memory apparatus 有权
标题翻译：用于产生半导体存储装置的时钟的电路
公开(公告)号：US07659787B2
公开(公告)日：2010-02-09
申请号：US11826813
申请日：2007-07-18
申请人： Sang-Kyu Lee
发明人： Sang-Kyu Lee
IPC分类号： H03L1/00
CPC分类号： H03K4/52
摘要： A circuit for generating a clock of a semiconductor memory apparatus is provided. A reference voltage generator is configured to generate a reference voltage. A reference current generator is configured to generate a reference current that has a constant current value regardless of a change in temperature. An oscillator is configured to receive the reference voltage and the reference current to generate a clock that has constant frequency.
摘要翻译：提供了一种用于产生半导体存储装置的时钟的电路。参考电压发生器被配置为产生参考电压。参考电流发生器被配置为产生具有恒定电流值的参考电流，而与温度的变化无关。振荡器被配置为接收参考电压和参考电流以产生具有恒定频率的时钟。

3. 发明授权

US2605306A Semiconductor multivibrator circuit 失效
标题翻译：半导体多谐振荡器电路
公开(公告)号：US2605306A
公开(公告)日：1952-07-29
申请号：US12155249
申请日：1949-10-15
申请人： RCA CORP
发明人： EVERETT EBERHARD
IPC分类号： H03K3/281 , H03K3/286 , H03K4/52
CPC分类号： H03K4/52 , H03K3/281 , H03K3/286

4. 发明授权

US3628054A Frequency-dividing circuit for signals of sawtooth waveform 失效
标题翻译：用于波形波形信号的频率分配电路
公开(公告)号：US3628054A
公开(公告)日：1971-12-14
申请号：US3628054D
申请日：1970-02-10
申请人： NIPPON MUSICAL INSTRUMENTS MFG
发明人： UCHIYAMA YASUJI
IPC分类号： G10H5/07 , H03B19/14 , H03K4/52 , H03K6/00 , H03K23/00 , H03K21/00
CPC分类号： H03K4/52 , G10H5/07 , H03B19/14 , H03K6/00 , H03K23/00
摘要： A frequency-dividing circuit for signals of sawtooth waveform, comprising: a buffer transistor to the base of which an input sawtooth wave and an output square wave of a square-wave frequency divider are applied in their states of equal peak amplitude through mixing resistors having equal value, and a mixing circuit for obtaining an output of a frequency-divided sawtooth wave from the emitter of said buffer transistor, a compensating DC voltage being superposed at any point of the circuit so that the lower ends of the mixed signal appearing at said base are offset from said emitter potential by a voltage value which is greater than the forward voltage drop between the base and the emitter of the transistor thereby to cause said buffer transistor to perform a perfect class ''''A'''' amplifying operation. Furthermore, modifications of the circuits mentioned above are described.
摘要翻译：用于产生锯齿波的分频电路包括方波分频器和混频电路的至少一级。接收到已知频率的锯齿波或方波作为触发输入信号，方波频率潜水员产生一半频率的方波。该混合电路包括：用于混合原频率的锯齿波和相等峰值振幅的分频方波的电阻，从而产生一半频率的锯齿波; 用于将所得到的锯齿波提供给后续状态的射极跟随器类型的晶体管放大器; 以及用于将所得到的锯齿波提供给输出端的射极跟随器类型的另一晶体管放大器。

5. 发明授权

US3497829A Linear sawtooth generator 失效
标题翻译：线性曲轴发电机
公开(公告)号：US3497829A
公开(公告)日：1970-02-24
申请号：US3497829D
申请日：1968-03-18
申请人： SANDERS ASSOCIATES INC
发明人： RUSCH WILLIAM T
IPC分类号： H03K4/52 , H03K4/56 , H03K3/282
CPC分类号： H03K4/52 , H03K4/56

6. 发明授权

US3231761A Precise timing circuit with linear charge network 失效
标题翻译：具有线性充电网络的精确时序电路
公开(公告)号：US3231761A
公开(公告)日：1966-01-25
申请号：US25755863
申请日：1963-02-11
申请人： SIEMENS AG ALBIS
发明人： MAX KELLER , PIERINO PACOZZI
IPC分类号： G04F10/00 , G04F10/10 , H03K3/023 , H03K3/284 , H03K4/52 , H03K17/28
CPC分类号： H03K4/52 , G04F10/00 , G04F10/10 , H03K3/023 , H03K3/284 , H03K17/28

7. 发明申请

US20080136486A1 Circuit for generating clock of semiconductor memory apparatus 有权
标题翻译：用于产生半导体存储装置的时钟的电路
公开(公告)号：US20080136486A1
公开(公告)日：2008-06-12
申请号：US11826813
申请日：2007-07-18
申请人： Sang Kyu Lee
发明人： Sang Kyu Lee
IPC分类号： G06F1/04
CPC分类号： H03K4/52
摘要： A circuit for generating a clock of a semiconductor memory apparatus. A reference voltage generator is configured to generate a reference voltage. A reference current generator is configured to generate a reference current that has a constant current value regardless of a change in temperature. An oscillator is configured to receive the reference voltage and the reference current to generate a clock that has constant frequency.
摘要翻译：一种用于产生半导体存储装置的时钟的电路。参考电压发生器被配置为产生参考电压。参考电流发生器被配置为产生具有恒定电流值的参考电流，而与温度的变化无关。振荡器被配置为接收参考电压和参考电流以产生具有恒定频率的时钟。

8. 发明授权

US3651337A Saw-tooth wave frequency divider circuit 失效
标题翻译： SAW波峰波分波器电路
公开(公告)号：US3651337A
公开(公告)日：1972-03-21
申请号：US3651337D
申请日：1970-06-02
申请人： NIPPON MUSICAL INSTRUMENTS MFG
发明人： TOMISAWA NORIO
IPC分类号： G10H5/07 , H03B19/14 , H03K4/52 , H03K6/00 , H03K23/00 , H03K21/00 , H03K3/12
CPC分类号： H03K4/52 , G10H5/07 , H03B19/14 , H03K6/00 , H03K23/00
摘要： In frequency divider circuit for saw-tooth wave including a circuit for producing a saw-tooth wave of a frequency f, a circuit for producing a square wave having a frequency f/2, mixing resistors, and a buffer circuit for obtaining a desired output saw-tooth wave of frequency f/2; the peak amplitude of the square wave is so selected as to be greater than the peak amplitude of the saw-tooth wave of a frequency f before mixing, and the ratio of the resistances of the mixing resistors is so selected that the peak amplitudes of the square wave component and the saw-tooth wave component in the mixed resultant wave become equal after mixing, whereby the resultant saw-tooth wave of a frequency f/2 has an amplitude at least equal to that of the original saw-tooth wave of frequency f.
摘要翻译：在包括用于产生频率f的锯齿波的电路的锯齿波分频器电路中，用于产生具有频率f / 2的方波的电路，混合电阻器和用于获得期望输出的缓冲电路频率f / 2的锯齿波; 方波的峰值振幅被选择为大于混合前频率f的锯齿波的峰值振幅，并且混合电阻器的电阻比被选择成使得峰值振幅混合合成波中的方波分量和锯齿波分量在混合后变得相等，从而所得到的频率为f / 2的锯齿波的振幅至少等于原始锯齿波频率的振幅 F。

9. 发明授权

US3256446A Linearly-varying output voltage generation utilizing a transistorized, modified, miller integrator 失效
标题翻译：使用晶体管，改进的铣刀积分器进行线性变化的输出电压产生
公开(公告)号：US3256446A
公开(公告)日：1966-06-14
申请号：US15338161
申请日：1961-11-20
申请人： FERGUSON RADIO CORP
发明人： JAMES CORNEY JOHN VICTOR
IPC分类号： H03K3/284 , H03K4/52 , H03K4/56
CPC分类号： H03K3/284 , H03K4/52 , H03K4/56

10. 发明授权

US10009019B2 Circuit and method to generate frequency proportional current 有权
公开(公告)号：US10009019B2
公开(公告)日：2018-06-26
申请号：US15282957
申请日：2016-09-30
申请人： Texas Instruments Incorporated
发明人： Michael Couleur , Neil Gibson , Antonio Priego
IPC分类号： G05F3/02 , H03K7/06 , H02M3/07 , H03K4/52 , H03L7/081
CPC分类号： H03K7/06 , H02M3/07 , H02M3/156 , H02M2001/0006 , H02M2001/0035 , H02M2001/0048 , H03K3/033 , H03K4/52 , H03L5/02 , H03L7/0812 , H03L7/089 , Y02B70/1491 , Y02B70/16
摘要： Disclosed examples include self-biased DLL circuits to generate a bias current signal proportional to a repetition frequency of a first signal representing continuous switching or discontinued switching operation of the DC-DC converter. The DLL circuit includes a monostable multivibrator to provide a pulse output signal in response to an edge of the first signal with a pulse duration set by a control current signal, a phase detector to provide output signals according to a phase difference between an edge of the pulse output signal and the first signal, and an output circuit to provide an output signal according to the phase detector output signals and according to an offset signal, to provide the bias current signal according to the output signal, and to provide the control current signal according to the output signal.

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