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公开(公告)号：US4774480A
公开(公告)日：1988-09-27
申请号：US19113
申请日：1987-02-26
申请人： Hideo Sato , Kazuo Kato , Takashi Sase , Kenichi Onda , Ichiro Ikushima
发明人： Hideo Sato , Kazuo Kato , Takashi Sase , Kenichi Onda , Ichiro Ikushima
CPC分类号： H03L7/091 , Y10S331/02
摘要： A PLL comprising a phase comparator circuit for detecting the phase of a pulse signal based upon the input signal and the phase of a pulse signal based upon the output signal, a smoothing filter for smoothing the output of the phase comparator circuit, a loop filter for controlling the oscillation frequency on the basis of the smoothing filter, and a voltage controlled oscillator circuit for sending out the output signal having a frequency corresponding to the voltage based upon the output of the loop filter. Since the smoothing filter is separated from the loop filter, time constants of the smoothing filter and the loop filter can be set independently and with precision. If the time constant of the smoothing filter is chosen to be extremely small, for example, the time constant of the phase-locked loop is defined by the time constant of the loop filter. It is thus possible to define the time constant of the phase-locked loop by only selecting the time constant of the loop filter. Further it is possible to both suppress the jitter of the phase-locked loop and reduce the frequency ripple, for example.
摘要翻译： 一种PLL，包括相位比较器电路，用于基于输入信号检测基于输入信号和脉冲信号的相位的脉冲信号的相位;平滑滤波器，用于平滑相位比较器电路的输出;环路滤波器，用于 基于平滑滤波器控制振荡频率，以及压控振荡器电路，用于根据环路滤波器的输出发出具有与电压对应的频率的输出信号。 由于平滑滤波器与环路滤波器分离，平滑滤波器和环路滤波器的时间常数可以独立且精确地设置。 如果选择平滑滤波器的时间常数极小，则锁相环的时间常数由环路滤波器的时间常数决定。 因此，可以通过仅选择环路滤波器的时间常数来定义锁相环的时间常数。 此外，例如，可以抑制锁相环的抖动并降低频率波动。
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公开(公告)号：US4749961A
公开(公告)日：1988-06-07
申请号：US31836
申请日：1987-03-26
申请人： Kazuo Kato , Takashi Sase , Hideo Sato , Kenichi Onda , Ichiro Ikushima
发明人： Kazuo Kato , Takashi Sase , Hideo Sato , Kenichi Onda , Ichiro Ikushima
CPC分类号： H03L7/148 , H03L7/099 , Y10S331/02
摘要： A voltage controlled oscillator is provided which includes a pair of gain stages constituting a positive feedback path, a pair of buffer stages in cross connection with the gain stages, a pair of loads connected with the corresponding gain stages, each having a parallel connection of an active device resistor and a clamping diode, and a pair of voltage controlled current sources connected with the corresponding gain stages, for supplying constant currents to the gain stages. A timing capacitor is connected with the input sides of both voltage controlled current sources, and is charged or discharged by the constant currents from the current sources. The oscillator further includes a pair of variable bias generating means, connected with the corresponding buffer stages, for generating variable bias voltages are provided, each of which varies the bias voltage to be applied to the corresponding active device in accordance with the output of the corresponding buffer stage in such a manner that the bias voltage is properly set in accordance with the constant current value of said constant current source so as to set the on-resistance of said active device to a suitable value corresponding to the constant current value. With this arrangement the loop gain of the VCO is made constant regardless of the constant current value.
摘要翻译： 提供压控振荡器，其包括构成正反馈路径的一对增益级，与增益级交叉连接的一对缓冲级，与相应的增益级连接的一对负载，每一级均具有 有源器件电阻器和钳位二极管，以及与相应增益级相连的一对电压控制电流源，用于向增益级提供恒定电流。 定时电容器与两个受压电流源的输入侧连接，并由来自电流源的恒定电流充电或放电。 该振荡器还包括一对可变偏置产生装置，与相应的缓冲级相连，用于产生可变的偏置电压，每一个可变偏压产生装置根据对应的输出改变施加到相应的有源装置的偏置电压 缓冲级，使得根据所述恒流源的恒定电流值适当地设置偏置电压，以便将所述有源器件的导通电阻设置为对应于恒定电流值的合适值。 利用这种布置，无论恒定电流值如何，VCO的环路增益都是恒定的。
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3.发明授权Complementary transistor circuit and amplifier and CRT display device using the same 失效互补晶体管电路和放大器和CRT显示器件使用相同
公开(公告)号：US5724519A
公开(公告)日：1998-03-03
申请号：US480673
申请日：1990-02-15
申请人： Kazuo Kato , Hideo Sato , Takashi Sase , Kenkichi Yamashita
发明人： Kazuo Kato , Hideo Sato , Takashi Sase , Kenkichi Yamashita
CPC分类号： H03G3/3036 , H03F1/34 , H03F3/19 , H03F3/343 , H03G1/0023 , H04N5/148
摘要： The present invention relates to a complementary transistor circuit and an amplifier using it, and, in particular, to a video amplifier for amplifying video signals and a high-definition CRT display device. In amplifying inputted video signals by using a multiplexer, a gain controller and a current mirror amplifier, each element circuit is formed by using complementary transistor circuits. Circuit simplification is thus attained. In addition, higher precision and band broadening has been realized owing to adoption of a current operation. Further, the present invention makes it possible to eliminate direct feedback from the high voltage output completely by providing a low-voltage output circuit for feedback having a similar relationship with respect to the high-voltage video output stage of the video amplifier, thereby performing negative feedback via a sample-and-hold circuit. This also serves to broaden the bandwidth and reduce power dissipation.
摘要翻译： 互补晶体管电路及其放大器技术领域本发明涉及互补晶体管电路及其使用的放大器，特别涉及用于放大视频信号的视频放大器和高分辨率CRT显示装置。 通过使用多路复用器，增益控制器和电流镜放大器来放大输入的视频信号，通过使用互补晶体管电路形成每个元件电路。 因此实现了电路简化。 此外，由于采用了当前的操作，已经实现了更高的精度和频带扩展。 此外，本发明通过提供与视频放大器的高电压视频输出级具有类似关系的反馈的低电压输出电路，可以完全消除来自高电压输出的直接反馈，由此执行负 通过采样保持电路进行反馈。 这也有助于扩大带宽并降低功耗。
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4.发明授权Complementary transistor circuit and amplifier and CRT display device using the same 失效互补晶体管电路和放大器和CRT显示器件使用相同
公开(公告)号：US5757233A
公开(公告)日：1998-05-26
申请号：US483844
申请日：1995-06-07
申请人： Kazuo Kato , Hideo Sato , Takashi Sase , Kenkichi Yamashita
发明人： Kazuo Kato , Hideo Sato , Takashi Sase , Kenkichi Yamashita
CPC分类号： H03G3/3036 , H03F1/34 , H03F3/19 , H03F3/343 , H03G1/0023 , H04N5/148
摘要： The present invention relates to a complementary transistor circuit and, an amplifier using it, and in particular, to a video amplifier for amplifying video signals and a high-definition CRT display device. In amplifying inputted video signals by using a multiplexer, a gain controller and a current mirror amplifier, each element circuit is formed by using complementary transistor circuits. Circuit simplification is thus attained. In addition, higher precision and band broadening has been realized owing to adoption of a current operation. Further, the present invention makes it possible to eliminate direct from the high voltage output completely by providing a low-voltage output circuit for feedback having a similar relationship with respect to the high-voltage video output stage of the video amplifier, thereby performing negative feedback via a sample-and-hold circuit. This also serves to broaden the bandwidth and reduce power dissipation.
摘要翻译： 互补晶体管电路及其使用的放大器技术领域本发明涉及互补晶体管电路及其使用的放大器，特别涉及用于放大视频信号的视频放大器和高分辨率CRT显示装置。 通过使用多路复用器，增益控制器和电流镜放大器来放大输入的视频信号，通过使用互补晶体管电路形成每个元件电路。 因此实现了电路简化。 此外，由于采用了当前的操作，已经实现了更高的精度和频带扩展。 此外，本发明通过提供与视频放大器的高电压视频输出级具有相似关系的用于反馈的低压输出电路，可以完全消除高压输出的直接，从而执行负反馈 通过采样和保持电路。 这也有助于扩大带宽并降低功耗。
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公开(公告)号：US4558238A
公开(公告)日：1985-12-10
申请号：US536870
申请日：1983-09-29
申请人： Kazuji Yamada , Hideo Sato , Yukitaka Kitadate , Kanji Kawakami , Kazuo Kato , Takao Sasayama
发明人： Kazuji Yamada , Hideo Sato , Yukitaka Kitadate , Kanji Kawakami , Kazuo Kato , Takao Sasayama
CPC分类号： G01L9/065 , Y10S323/907
摘要： A pressure transducer comprises a pressure sensor including a bridge connection of gauging resistors formed on a semiconductor substrate, and a power supply connected to the pressure sensor for driving it and basically acting as a constant current source. The power supply includes at least two transistors formed on the semiconductor substrate. One of the transistors provides a collector current which is less in temperature-dependency relative to that of the other transistor, and the other transistor has a collector circuit connected to the pressure sensor and provides a collector current corresponding to a sum of a substantially temperature-dependent current and a substantially temperature-independent current. A ratio of the temperature-dependent current to the temperature-independent current is adjusted by selecting operation characteristics of the two transistors such that a temperature characteristic of the collector current of the other transistor is substantially inversely proportional to a temperature characteristic of the output of the pressure sensor when it is driven with a constant voltage.
摘要翻译： 压力传感器包括压力传感器，该压力传感器包括形成在半导体衬底上的测量电阻器的桥连接器，以及连接到压力传感器的电源，用于驱动它并基本上作为恒定电流源。 电源包括形成在半导体衬底上的至少两个晶体管。 晶体管中的一个提供了相对于另一个晶体管的温度依赖性较小的集电极电流，另一个晶体管具有连接到压力传感器的集电极电路，并且提供对应于基本上温度相关的总和的集电极电流， 依赖电流和基本上温度无关的电流。 通过选择两个晶体管的工作特性来调节温度依赖电流与独立于温度的电流的比例，使得另一个晶体管的集电极电流的温度特性与输出的温度特性成反比 压力传感器用恒定电压驱动时。
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公开(公告)号：US4618814A
公开(公告)日：1986-10-21
申请号：US622159
申请日：1984-06-19
申请人： Kazuo Kato , Hideo Sato
发明人： Kazuo Kato , Hideo Sato
CPC分类号： G05F1/561 , H03F1/301 , H03F3/45977
摘要： A voltage-to-current converter circuit for outputting a current accurately proportional to the input signal voltage, which converter circuit includes an operational amplifier for providing an output corresponding to a difference between the input signal and a feedback signal, and includes a feedback circuit for detecting the output current in the form of a voltage by making the output current flow through the reference resistor and for feeding back the detected voltage. Further, the feedback circuit includes a polarity inverting circuit which holds the voltage detected by the reference resistor and inverts the polarity of the voltage, and then feeds back to the operational amplifier.
摘要翻译： 一种用于输出与输入信号电压精确成比例的电流的电压 - 电流转换器电路，该转换器电路包括用于提供对应于输入信号和反馈信号之间的差的输出的运算放大器，并且包括反馈电路 通过使输出电流流过参考电阻器来检测电压形式的输出电流并反馈检测到的电压。 此外，反馈电路包括极性反转电路，其保持由参考电阻检测的电压并使电压的极性反转，然后反馈到运算放大器。
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公开(公告)号：US4888561A
公开(公告)日：1989-12-19
申请号：US190050
申请日：1988-05-04
申请人： Ryushi Shimokawa , Seiichi Ueda , Yasuji Kamata , Kenkichi Yamashita , Kazuo Kato , Hideo Sato
发明人： Ryushi Shimokawa , Seiichi Ueda , Yasuji Kamata , Kenkichi Yamashita , Kazuo Kato , Hideo Sato
摘要： Herein disclosed are an amplifier and a display which uses the former. The amplifier includes a current amplifying circuit for sending out an amplified output current varying according to an input signal, and a current-voltage converting circuit for converting the output current of the current amplifying circuit into a voltage thereby to generate a high output voltage in response to the input signal. The supply voltage V.sub.cc1 of the current amplifying means and the supply voltage V.sub.cc2 of the current-voltage converting means are set separately of each other to have a relationship of V.sub.cc1
摘要翻译： 这里公开的是使用前者的放大器和显示器。 放大器包括用于发出根据输入信号变化的放大输出电流的电流放大电路和用于将电流放大电路的输出电流转换成电压的电流 - 电压转换电路，从而响应于产生高输出电压 到输入信号。 电流放大装置的电源电压Vcc1和电流 - 电压转换装置的电源电压Vcc2彼此分开地设定为具有Vcc1
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公开(公告)号：US4755768A
公开(公告)日：1988-07-05
申请号：US847721
申请日：1986-04-03
申请人： Ryushi Shimokawa , Seiichi Ueda , Yasuji Kamata , Kenkichi Yamashita , Kazuo Kato , Hideo Sato
发明人： Ryushi Shimokawa , Seiichi Ueda , Yasuji Kamata , Kenkichi Yamashita , Kazuo Kato , Hideo Sato
摘要： Herein disclosed are an amplifier and a display which uses the former. The amplifier includes a current amplifying circuit for sending out an amplified output current varying according to an input signal, and a current-voltage converting circuit for converting the output current of the current amplifying circuit into a voltage thereby to generate a high output voltage in response to the input signal. The supply voltage V.sub.cc1 of the current amplifying means and the supply voltage V.sub.cc2 of the current-voltage converting means are set separately of each other to have a relationship of V.sub.cc1
摘要翻译： 这里公开的是使用前者的放大器和显示器。 放大器包括用于发出根据输入信号变化的放大输出电流的电流放大电路和用于将电流放大电路的输出电流转换成电压的电流 - 电压转换电路，从而响应于产生高输出电压 到输入信号。 电流放大装置的电源电压Vcc1和电流 - 电压转换装置的电源电压Vcc2彼此分开地设定为具有Vcc1
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公开(公告)号：US4604899A
公开(公告)日：1986-08-12
申请号：US597753
申请日：1984-04-06
申请人： Kazuji Yamada , Hideo Sato , Kanji Kawakami , Kazuo Kato , Takao Sasayama
发明人： Kazuji Yamada , Hideo Sato , Kanji Kawakami , Kazuo Kato , Takao Sasayama
CPC分类号： G01L1/2281 , G01L9/065
摘要： A semiconductor-type pressure transducer is disclosed in which the pressure change is detected as a resistance change by use of a bridge circuit including at least a gauge resistor changing with an external force. Each gauge resistor is made of a PN junction of a semiconductor. The pressure transducer further comprises an amplification factor compensator for cancelling the effect of the temperature change of the gauge resistors making up the bridge circuit on the amplification factor of the amplification circuit for amplifying the output of the bridge circuit.
摘要翻译： 公开了一种半导体型压力传感器，其中通过使用至少包括用外力改变的量规电阻器的桥式电路将压力变化检测为电阻变化。 每个规格电阻由半导体的PN结制成。 压力传感器还包括放大系数补偿器，用于抵消构成桥式电路的量规电阻器的温度变化对放大电路的放大系数的影响，用于放大桥式电路的输出。
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公开(公告)号：US4556807A
公开(公告)日：1985-12-03
申请号：US522227
申请日：1983-08-11
申请人： Kazuji Yamada , Hideo Sato , Kazuo Kato , Takao Sasayama , Kanji Kawakami , Ryosaku Kanzawa
发明人： Kazuji Yamada , Hideo Sato , Kazuo Kato , Takao Sasayama , Kanji Kawakami , Ryosaku Kanzawa
CPC分类号： G01L9/0054 , G01L9/065 , Y10S323/907
摘要： A pressure transducer is disclosed comprising a pressure sensor portion having gage resistors in bridge formed on a thin diaphragm of a semiconductor substrate, and a power supply connected to the pressure sensor portion for driving the pressure sensor. The power supply includes a first current source for supplying a temperature-dependent current equivalent to the sum of a current almost proportional to the absolute temperature and a current independent of temperature, and a second current source for sinking the current almost proportional to the temperature characteristic of the gage resistors from the current of the first current source. A temperature compensation circuit is additionally provided to drive the bridge circuit by the difference between the temperature-dependent current and the current proportional to the temperature characteristic in a constant-current driving mode, and by a voltage proportional to the current difference when the output of the bridge circuit is connected to an amplifier whose gain is dependent on temperature.
摘要翻译： 公开了一种压力传感器，包括压电传感器部分，该压力传感器部分具有形成在半导体衬底的薄膜上的桥中的量规电阻器，以及连接到用于驱动压力传感器的压力传感器部分的电源。 电源包括用于提供等效于与绝对温度几乎成比例的电流和独立于温度的电流的和的温度相关电流的第一电流源，以及用于将大体上与温度特性成比例的电流吸收的第二电流源 的电流从第一个电流源的电流。 另外提供温度补偿电路以通过温度相关电流和与恒定电流驱动模式中的温度特性成比例的电流之间的差异来驱动桥式电路，并且通过与当电流差异的电流成比例的电压来驱动桥式电路 桥接电路连接到增益取决于温度的放大器。
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