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公开(公告)号：US4612451A
公开(公告)日：1986-09-16
申请号：US583309
申请日：1984-02-24
申请人： Hitoshi Maekawa , Michitaka Osawa , Kunio Ando
发明人： Hitoshi Maekawa , Michitaka Osawa , Kunio Ando
摘要： A drive circuit having a transformer with its secondary winding connected to the base of a transistor and its primary winding connected to a drive source by which the transistor is driven to switch, wherein a directional element is connected between a tap provided on the secondary winding and one end of the secondary winding so as to select the ratio between the forward base current and reverse base current of the transistor.
摘要翻译： 一种具有变压器的驱动电路，其次级绕组连接到晶体管的基极，其初级绕组连接到驱动源，通过该驱动源驱动晶体管切换，其中定向元件连接在设置在次级绕组上的抽头和 次级绕组的一端，以选择晶体管的正向基极电流和反向基极电流之间的比率。
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公开(公告)号：US4587495A
公开(公告)日：1986-05-06
申请号：US496257
申请日：1983-05-19
申请人： Michitaka Osawa , Kunio Ando , Hitoshi Maekawa
发明人： Michitaka Osawa , Kunio Ando , Hitoshi Maekawa
摘要： A cascode amplifier comprises a grounded-emitter drive transistor which has a collector supplied with a bias current from a bias current source and operates in response to an input signal and a grounded-base (or grounded-gate) output transistor which has a collector supplied with a bias current from a constant voltage source, wherein the collector of the drive transistor is connected to the emitter (or source) of the output transistor. A constant current circuit is connected to the junction between the collector of the drive transistor and the emitter (or source) of the output transistor for supplying a part of the bias current applied to the drive transistor to thereby decrease the bias current of the output transistor while causing the drive transistor to be operated in the linear region. The cascode amplifier is thus imparted with a broad band frequency characteristic.
摘要翻译： 共源共栅放大器包括接地 - 发射极驱动晶体管，其具有从偏置电流源提供的偏置电流的集电极，并且响应于输入信号和接地基极（或接地栅极）输出晶体管而工作，该晶体管具有集电极 具有来自恒定电压源的偏置电流，其中驱动晶体管的集电极连接到输出晶体管的发射极（或源极）。 恒流电路连接到驱动晶体管的集电极和输出晶体管的发射极（或源极）之间的结，用于提供施加到驱动晶体管的偏置电流的一部分，从而降低输出晶体管的偏置电流 同时使驱动晶体管在线性区域中工作。 因此，共射型放大器被赋予宽带频率特性。
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公开(公告)号：US4544896A
公开(公告)日：1985-10-01
申请号：US709848
申请日：1985-03-11
申请人： Michitaka Osawa , Etuo Funada , Hiroyuki Miyajima , Hitoshi Maekawa , Kunio Ando
发明人： Michitaka Osawa , Etuo Funada , Hiroyuki Miyajima , Hitoshi Maekawa , Kunio Ando
CPC分类号： H04N9/648
摘要： An amplitude-adjusting circuit used for a contrast-adjusting circuit of resistor division type in which a video signal is applied across a pair of series-connected resistors and an output is produced from the junction point of the two resistors. At least one of the resistors is used as a variable resistor. The amplitude-adjusting circuit comprises a current source for supplying a constant current steadily between the terminals of the variable resistor, a high-gain amplifier for controlling the resistance value of the variable resistor, and a filter for separating the video signal component from the change of the value of the variable resistor represented by a voltage change, and introducing the resistance change to the high-gain differential amplifier.
摘要翻译： 用于电阻分割类型的对比度调整电路的幅度调节电路，其中视频信号施加在一对串联电阻器和输出之间，从两个电阻器的连接点产生。 至少有一个电阻用作可变电阻。 幅度调节电路包括用于在可变电阻器的端子之间稳定地提供恒定电流的电流源，用于控制可变电阻器的电阻值的高增益放大器和用于将视频信号分量与变化分离的滤波器 由电压变化表示的可变电阻器的值，并将电阻变化引入高增益差分放大器。
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公开(公告)号：US4442384A
公开(公告)日：1984-04-10
申请号：US434880
申请日：1982-10-18
申请人： Hitoshi Maekawa , Michitaka Osawa , Kunio Ando
发明人： Hitoshi Maekawa , Michitaka Osawa , Kunio Ando
CPC分类号： H03K4/64
摘要： A horizontal deflection circuit comprises a horizontal oscillator circuit, a drive transistor, a horizontal output transistor driven by the output of the drive transistor, a timing circuit for setting a timing delayed by about one fourth the horizontal scanning period from the terminating point of the flyback pulse generated at the collector of the horizontal output transistor, a phase difference detector circuit for detecting the phase difference between the leading edge of the collector pulse of the horizontal drive transistor and the timing set by the timing circuit, and a pulse duration variable output circuit triggered by the output of the horizontal oscillator circuit and with the output pulse duration thereof controlled by the output of the phase difference detector circuit. The horizontal drive transistor is driven by the output of the pulse duration variable output circuit, so that the leading edge of the collector pulse of the horizontal drive transistor is rendered to coincide with the timing set by the timing circuit.
摘要翻译： 水平偏转电路包括水平振荡电路，驱动晶体管，由驱动晶体管的输出驱动的水平输出晶体管;定时电路，用于设置从反激的终止点延迟水平扫描周期约四分之一的定时 在水平输出晶体管的集电极产生的脉冲，用于检测水平驱动晶体管的集电极脉冲的前沿与由定时电路设定的定时之间的相位差的相位差检测电路，以及脉冲宽度可变输出电路 由水平振荡器电路的输出触发并且其输出脉冲持续时间由相位差检测器电路的输出控制。 水平驱动晶体管由脉冲持续时间可变输出电路的输出驱动，使得水平驱动晶体管的集电极脉冲的前沿与由定时电路设定的定时一致。
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公开(公告)号：US4707640A
公开(公告)日：1987-11-17
申请号：US795780
申请日：1985-11-07
申请人： Makoto Onozawa , Michitaka Osawa , Hitoshi Maekawa , Koji Kito
发明人： Makoto Onozawa , Michitaka Osawa , Hitoshi Maekawa , Koji Kito
摘要： A horizontal deflection output circuit, such as used in a TV receiver or a display device, includes a series circuit composed of a ringing preventing resistor and a one-way switching element connected in parallel with a linearity correcting coil. That one-way switching element is turned on at the beginning of a horizontal scanning period to feed a current to the ringing preventing resistor but is turned off in the vicinity of a fly-back period to block the flow of the current to the ringing preventing resistor. Thus, the power loss due to the current flowing through the ringing preventing resistor for the fly-back period can be reduced according to the present invention.
摘要翻译： 在TV接收机或显示装置中使用的水平偏转输出电路包括由防振电阻和与线性校正线圈并联连接的单向开关元件构成的串联电路。 该单向开关元件在水平扫描周期开始时导通，以将电流馈送到防振电阻器，但在回扫周期附近被截止，以阻止电流流向阻止振铃 电阻。 因此，根据本发明，可以减少由于流过防回波电阻器的电流引起的电流的功率损耗。
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公开(公告)号：US4480268A
公开(公告)日：1984-10-30
申请号：US384716
申请日：1982-06-02
申请人： Michitaka Osawa , Hitoshi Maekawa
发明人： Michitaka Osawa , Hitoshi Maekawa
CPC分类号： H04N5/202
摘要： A gamma correction circuit is provided with a first circuit including a first linear element and a first non-linear element connected in series in the above order and a second circuit including a second non-linear element and a second linear element connected in series in the above order. A first connection point is located between the first linear element and the second non-linear element and a second connection point is located between the first non-linear element and the second linear element. A current source for converting a video signal voltage into a current output is connected to the second connection point. Two common collector (or common drain) transistors have their collectors (or their drains) connected to a power supply line. The input terminals of these transistors are connected to the connection point between the first linear element and the first non-linear element and to the connection point between the second non-linear element and the second linear element respectively, and the output terminals are connected to each other through a resistor. In order to decrease the junction capacitance of the transistors as the video signal voltage level increases, a voltage regulator circuit is connected between the power supply line and the first connection point.
摘要翻译： 伽马校正电路设置有包括按照上述顺序串联连接的第一线性元件和第一非线性元件的第一电路和包括第二非线性元件和第二线性元件串联连接的第二线性元件 以上订单。 第一连接点位于第一线性元件和第二非线性元件之间，第二连接点位于第一非线性元件和第二线性元件之间。 用于将视频信号电压转换为电流输出的电流源连接到第二连接点。 两个公共集电极（或公共漏极）晶体管的收集器（或其漏极）连接到电源线。 这些晶体管的输入端子分别连接到第一线性元件和第一非线性元件之间的连接点以及第二非线性元件和第二线性元件之间的连接点，并且输出端子连接到 互相通过一个电阻。 为了在视频信号电压电平增加时降低晶体管的结电容，在电源线和第一连接点之间连接有电压调节器电路。
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公开(公告)号：US4285008A
公开(公告)日：1981-08-18
申请号：US94735
申请日：1979-11-15
CPC分类号： H04N9/72
摘要： A capacitor is provided between each cathode of a three-electron-gun color picture tube with three first grids earthed and each transistor amplifier for amplifying each primary color signal. The charging voltage across each capacitor is adjusted by a variable resistor provided corresponding to each capacitor. A variable DC voltage is produced at the sliding terminal of each variable resistor. A switch is provided between the sliding terminal and each cathode, which is turned on during the flyback period and the scanning period.
摘要翻译： 在三电子枪彩色显象管的每个阴极与三个接地的第一格栅和每个用于放大每个原色信号的晶体管放大器之间提供电容器。 每个电容器上的充电电压由对应于每个电容器的可变电阻器调节。 在每个可变电阻器的滑动端产生可变直流电压。 在滑动端子和每个阴极之间提供开关，该开关在回扫期间和扫描周期期间被接通。
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公开(公告)号：US08039954B2
公开(公告)日：2011-10-18
申请号：US12773305
申请日：2010-05-04
IPC分类号： H01L29/66
CPC分类号： H01L24/49 , H01L23/49562 , H01L23/49575 , H01L24/45 , H01L24/48 , H01L24/73 , H01L25/072 , H01L25/18 , H01L2224/0603 , H01L2224/32245 , H01L2224/451 , H01L2224/48091 , H01L2224/48137 , H01L2224/48139 , H01L2224/48247 , H01L2224/4903 , H01L2224/49051 , H01L2224/73265 , H01L2224/92247 , H01L2924/00014 , H01L2924/01005 , H01L2924/01006 , H01L2924/01007 , H01L2924/01013 , H01L2924/01019 , H01L2924/01028 , H01L2924/01033 , H01L2924/01075 , H01L2924/01078 , H01L2924/01079 , H01L2924/01082 , H01L2924/1305 , H01L2924/13055 , H01L2924/1306 , H01L2924/13091 , H01L2924/15787 , H01L2924/00 , H01L2924/00012 , H01L2224/05599
摘要： A first semiconductor element having a junction electrode to be connected to a first node of a bidirectional switch circuit is mounted on a first metal base plate to be a heat dissipation plate, and a second semiconductor element having a junction electrode to be connected to a second node of the bidirectional switch circuit is mounted on a second metal base plate to be a heat dissipation plate. The junction electrode of the first semiconductor element has the same potential as that of the first metal base plate, and the junction electrode of the second semiconductor element has the same potential as that of the second metal base plate. Also, the respective metal base plates and non-junction electrodes of the respective semiconductor elements are connected by metal thin wires, respectively, thereby configuring the bidirectional switch circuit.
摘要翻译： 具有连接到双向开关电路的第一节点的接合电极的第一半导体元件安装在第一金属基板上作为散热板，并且第二半导体元件具有连接到第二金属基板的接合电极 双向开关电路的节点安装在第二金属基板上作为散热板。 第一半导体元件的接合电极具有与第一金属基板相同的电位，第二半导体元件的接合电极具有与第二金属基板相同的电位。 此外，各个半导体元件的各个金属基板和非接合电极分别由金属细线连接，从而构成双向开关电路。
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公开(公告)号：US4820997A
公开(公告)日：1989-04-11
申请号：US20884
申请日：1987-03-02
申请人： Yuji Sano , Michitaka Osawa , Masahide Kawai
发明人： Yuji Sano , Michitaka Osawa , Masahide Kawai
CPC分类号： H03F1/3211
摘要： A differential amplifier circuit including not only first and second transistors whose emitters are coupled together through a resistor to form a differential transistor pair, but also first and second distortion-correcting transistors, is disclosed. In this circuit, the base terminal of the first transistor is connected to the emitter terminal of the first distortion-correcting transistor, the base terminal of the second transistor is connected to the emitter terminal of the second distortion-correcting transistor, the emitter terminals of the first and second distortion-correcting transistors are connected to a current source of the current control type, and a ratio of the current flowing through the first distortion-correcting transistor to the current flowing through the second distortion-correcting transistor is made equal to a ratio of the emitter current of the second transistor to the emitter current of the first transistor, to cancel the non-linear distortion due to the base-to-emitter voltages of the first and second transistors by the non-linear distortion due to the base-to-emitter voltages of the first and second distortion-correcting transistors, thereby eliminating non-linear distortion from the output of the differential amplifier circuit.
摘要翻译： 一种差分放大器电路，其不仅包括其发射极通过电阻器耦合在一起以形成差分晶体管对的第一和第二晶体管，还包括第一和第二失真校正晶体管。 在该电路中，第一晶体管的基极端子连接到第一失真校正晶体管的发射极端子，第二晶体管的基极端子连接到第二失真校正晶体管的发射极端子，发射极端子 第一和第二失真校正晶体管连接到电流控制类型的电流源，并且流过第一失真校正晶体管的电流与流过第二失真校正晶体管的电流的比值等于 第二晶体管的发射极电流与第一晶体管的发射极电流的比值，由于基极的非线性失真而消除由于第一和第二晶体管的基极到发射极电压引起的非线性失真 第一和第二失真校正晶体管的发射极间电压，从而消除了不同的输出端的非线性失真 ntial放大器电路。
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10.发明授权Wide band high output amplifier using a power field effect transistor as an output stage 失效宽带高输出放大器采用功率场效应晶体管作为输出级
公开(公告)号：US4528520A
公开(公告)日：1985-07-09
申请号：US495495
申请日：1983-05-17
申请人： Michitaka Osawa
发明人： Michitaka Osawa
摘要： Disclosed is a wide band high output amplifier in which a field effect transistor is used as an output element, in which a constant resistance circuit is inserted between the drain terminal of the field effect transistor and a load capacitance such that the impedance characteristic is a constant resistive value and provides a peaking function across the load capacitance so as to improve the high frequency characteristic of the amplifier without increasing the imput impedance of the field effect transistor.
摘要翻译： 公开了一种宽带高输出放大器，其中使用场效应晶体管作为输出元件，其中恒定电阻电路插入在场效应晶体管的漏极端子和负载电容之间，使得阻抗特性为常数 并且在负载电容之间提供峰值功能，以便在不增加场效应晶体管的输入阻抗的情况下改善放大器的高频特性。
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