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公开(公告)号：US08320846B2
公开(公告)日：2012-11-27
申请号：US13007303
申请日：2011-01-14
申请人： Takayuki Kato
发明人： Takayuki Kato
IPC分类号： H04B1/02
CPC分类号： H04L27/36 , H03F1/0227 , H03F1/025 , H03F3/195 , H03F3/2171 , H03F3/2178 , H03F3/245 , H03F3/42 , H03G3/004
摘要： An amplifier includes a separating unit, a generator, first to fourth switching amplifiers, and an outputting unit. The separating unit separates a pulse signal into a first separated pulse signal and a second separated pulse signal. The generator generates first to fourth low speed pulse signals by using the first and the second separated pulse signal. The first switching amplifier amplifies the first low speed pulse signal. The second switching amplifier amplifies the second low speed pulse signal by using the output of the first switching amplifier as a power-supply. The third switching amplifier amplifies the third low speed pulse signal. The fourth switching amplifier amplifies the fourth low speed pulse signal by using the output of the third switching amplifier as a power-supply. The outputting unit combines and outputs the first and the second output pulse signal.
摘要翻译： 放大器包括分离单元，发生器，第一至第四开关放大器和输出单元。 分离单元将脉冲信号分离成第一分离脉冲信号和第二分离脉冲信号。 发电机通过使用第一和第二分离脉冲信号产生第一至第四低速脉冲信号。 第一开关放大器放大第一低速脉冲信号。 第二开关放大器通过使用第一开关放大器的输出作为电源来放大第二低速脉冲信号。 第三开关放大器放大第三低速脉冲信号。 第四开关放大器通过使用第三开关放大器的输出作为电源来放大第四低速脉冲信号。 输出单元组合并输出第一和第二输出脉冲信号。
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公开(公告)号：US20120027127A1
公开(公告)日：2012-02-02
申请号：US13007303
申请日：2011-01-14
申请人： Takayuki KATO
发明人： Takayuki KATO
CPC分类号： H04L27/36 , H03F1/0227 , H03F1/025 , H03F3/195 , H03F3/2171 , H03F3/2178 , H03F3/245 , H03F3/42 , H03G3/004
摘要： An amplifier includes a separating unit, a generator, first to fourth switching amplifiers, and an outputting unit. The separating unit separates a pulse signal into a first separated pulse signal and a second separated pulse signal. The generator generates first to fourth low speed pulse signals by using the first and the second separated pulse signal. The first switching amplifier amplifies the first low speed pulse signal. The second switching amplifier amplifies the second low speed pulse signal by using the output of the first switching amplifier as a power-supply. The third switching amplifier amplifies the third low speed pulse signal. The fourth switching amplifier amplifies the fourth low speed pulse signal by using the output of the third switching amplifier as a power-supply. The outputting unit combines and outputs the first and the second output pulse signal.
摘要翻译： 放大器包括分离单元，发生器，第一至第四开关放大器和输出单元。 分离单元将脉冲信号分离成第一分离脉冲信号和第二分离脉冲信号。 发电机通过使用第一和第二分离脉冲信号产生第一至第四低速脉冲信号。 第一开关放大器放大第一低速脉冲信号。 第二开关放大器通过使用第一开关放大器的输出作为电源来放大第二低速脉冲信号。 第三开关放大器放大第三低速脉冲信号。 第四开关放大器通过使用第三开关放大器的输出作为电源来放大第四低速脉冲信号。 输出单元组合并输出第一和第二输出脉冲信号。
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34.发明授权公开(公告)号：US07345528B2
公开(公告)日：2008-03-18
申请号：US11125960
申请日：2005-05-10
申请人： Alfio Zanchi , Marco Corsi
发明人： Alfio Zanchi , Marco Corsi
CPC分类号： H03F3/4517 , H03F3/42 , H03F3/4508
摘要： A clock signal preamplifier comprises complementary pairs of differentially coupled transistors, with an output signal coupled to an inverter further comprising a totem-pole arrangement of complementary MOSFET transistors. The input signal to the preamplifier is typically sinusoidal, and the output signal is rectangular. Preferably, the differentially coupled transistors are bipolar, and a pair of diode clamper circuits with bipolar transistors is preferably coupled to the complementary pairs of differentially coupled transistors. A reference voltage source is coupled to the control terminals of the clamper transistors. A reference voltage source, which preferably comprises a totem-pole arrangement of complementary MOSFET transistors with its output node is coupled to its input node, provides a reference voltage for the diode clamper circuits. Preferably, MOSFET transistors of the reference voltage source and MOSFET transistors of like kind of the inverter are configured to have substantially identical threshold voltages.
摘要翻译： 时钟信号前置放大器包括互补的差分耦合晶体管对，其中耦合到反相器的输出信号还包括互补MOSFET晶体管的图腾柱布置。 前置放大器的输入信号通常是正弦波，输出信号是矩形的。 优选地，差分耦合的晶体管是双极的，并且具有双极晶体管的一对二极管钳位电路优选地耦合到互补的差分耦合晶体管对。 参考电压源耦合到钳位晶体管的控制端。 优选地包括具有其输出节点的互补MOSFET晶体管的图腾柱布置的参考电压源耦合到其输入节点，为二极管钳位电路提供参考电压。 优选地，参考电压源的MOSFET晶体管和类似类型的反相器的MOSFET晶体管被配置为具有基本相同的阈值电压。
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公开(公告)号：US5694083A
公开(公告)日：1997-12-02
申请号：US631681
申请日：1996-04-16
申请人： Takehiko Umeyama , Tsutomu Kamifuji
发明人： Takehiko Umeyama , Tsutomu Kamifuji
CPC分类号： H03F3/42 , G11B5/02 , H03F3/19 , H03F3/4508 , H03F2203/45394
摘要： A single end input type high frequency amplifier of the present invention decreases noise superposed on a power supply of a pre-amplifier in a read amplifier which amplifies a signal from MR head. The single end input type high frequency amplifier includes a transistor connected to an input side terminal of a differential input amplifier. A single end type resistor is connected to the transistor and a loop amplifier is connected to the single end type resistor to feedback a difference voltage between a reference side terminal and an input side terminal of the differential input amplifier.
摘要翻译： 本发明的单端输入型高频放大器降低了放大来自MR头的信号的读放大器中的前置放大器的电源上叠加的噪声。 单端输入型高频放大器包括连接到差分输入放大器的输入侧端子的晶体管。 单端电阻器连接到晶体管，并且环路放大器连接到单端电阻器以反馈差分输入放大器的参考侧端子和输入侧端子之间的差分电压。
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36.发明授权Low consumption multi-stage amplifier, and a vehicle onboard signal receiver having such an amplifier 失效低功耗多级放大器，以及具有这种放大器的车载信号接收器
公开(公告)号：US5530405A
公开(公告)日：1996-06-25
申请号：US410122
申请日：1995-03-23
申请人： Charles Rydel
发明人： Charles Rydel
CPC分类号： H03F3/42
摘要： A multi-stage amplifier of low current consumption, such as an onboard receiver for a motor vehicle for receiving telecontrol systems for opening the doors or interrogation signals for the alarm system of the vehicle, has the polarising networks for the amplification stages connected in series in such a way as to reduce the power consumption of the circuitry in the static state. The amplifier stages are connected in series on the polarising bridge in the static state, and in the dynamic state they are connected in cascade. The output of the first stage is connected to the input of the next stage through an impedance matching reactance. In another aspect, gain is controlled by injection/extraction of current between the output terminal of the amplifier and an injection/extraction terminal on the input of the first stage.
摘要翻译： 具有低电流消耗的多级放大器，例如用于接收用于打开门的遥控系统的机动车辆的车载接收机或用于车辆的报警系统的询问信号，具有用于串联连接的放大级的极化网络 这样一种方式可以降低处于静态状态的电路的功耗。 放大器级在静态下串联连接在偏振桥上，在动态状态下，它们串联连接。 第一级的输出通过阻抗匹配电抗连接到下一级的输入端。 在另一方面，通过在放大器的输出端子与第一级输入端上的注入/提取端子之间注入/提取电流来控制增益。
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公开(公告)号：US5459434A
公开(公告)日：1995-10-17
申请号：US286964
申请日：1994-08-08
申请人： Rene Liger , Pierre Rochon
发明人： Rene Liger , Pierre Rochon
CPC分类号： H03F1/0283 , H03F3/42
摘要： A detector amplifier includes a first stage, a second stage and a low voltage supply. The first stage has a first input for receiving a first input signal, and an output for outputting a first output signal, and amplifies and/or demodulates the first input signal to form the first output signal. The second stage is coupled in series to the first stage and has a first input for receiving the first output signal, a second input for receiving a second input signal, and an output for outputting a second output signal. The second stage amplifies and/or demodulates the first output signal and the second input signal to form the second output signal. The low-voltage supply is coupled in series with the first and the second stage for supplying a DC current to the stages.
摘要翻译： 检测器放大器包括第一级，第二级和低电压源。 第一级具有用于接收第一输入信号的第一输入端和用于输出第一输出信号的输出，并且放大和/或解调第一输入信号以形成第一输出信号。 第二级与第一级串联耦合，并具有用于接收第一输出信号的第一输入端，用于接收第二输入信号的第二输入端和用于输出第二输出信号的输出端。 第二级放大和/或解调第一输出信号和第二输入信号以形成第二输出信号。 低压电源与第一和第二级串联耦合，用于向级提供直流电流。
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公开(公告)号：US5041797A
公开(公告)日：1991-08-20
申请号：US615248
申请日：1990-11-19
CPC分类号： H03F1/0205 , H03F3/19 , H03F3/42
摘要： A broadband, high-gain RF signal amplifier which consumes a minimal amount of DC power has an input terminal to which an input signal to be amplified is coupled, and an output terminal from which an amplified output signal is derived. The signal amplifier has a plurality of first through n.sup.th signal amplification stages coupled in cascade between the input terminal and the output terminal. Each stage comprises an amplifier device having an input electrode, an output electrode and a control electrode. The output electrode is coupled to an amplifier device of an i.sup.th stage that is resistively coupled to the input electrode of the amplifier device of an (i+1).sup.th stage, and is DC coupled through a rectifier device to the control electrode of the amplifier device of the (i+1).sup.th stage. The control electrode of the amplifier device of the i.sup.th stage is resistively coupled to the input electrode of the amplifier device of the (i+1).sup.th stage. The input terminal is coupled to the input electrode of the amplifier device of the first amplification stage, while the output terminal is coupled to the input electrode of the amplifier device of the n.sup.th amplification stage.
摘要翻译： 消耗最小直流功率的宽带，高增益RF信号放大器具有要被放大的输入信号耦合到的输入端子和从其输出放大的输出信号的输出端子。 信号放大器具有在输入端子和输出端子之间级联耦合的多个第一至第N信号放大级。 每个级包括具有输入电极，输出电极和控制电极的放大器装置。 输出电极耦合到第i级的放大器装置，其电阻耦合到第（i + 1）级的放大器装置的输入电极，并通过整流器件直流耦合到放大器的控制电极 第（i + 1）级的装置。 第i级的放大器装置的控制电极电阻耦合到第（i + 1）级放大器装置的输入电极。 输入端耦合到第一放大级的放大器装置的输入电极，而输出端耦合到第n放大级的放大器装置的输入电极。
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公开(公告)号：US4859962A
公开(公告)日：1989-08-22
申请号：US172011
申请日：1988-03-23
CPC分类号： H03F3/19 , H03F3/42 , H03F3/45089 , H04N5/148
摘要： The present amplifier is designed in such a way that the amplifier will exhibit a linear characteristic in response to small variations of the input signal and a hard switching characteristic in response to large variations of that input signal. Due to the design of this amplifier, the output signal will generally be proportional to the input signal, but will be able to respond more quickly to a sudden increase of the input signal. The present amplifier is particularly useful in an amplifying circuit of a videoamplifier.
摘要翻译： 本放大器被设计成使得放大器响应于该输入信号的大变化而响应于输入信号的小变化和硬开关特性呈现线性特性。 由于该放大器的设计，输出信号通常与输入信号成比例，但能够更快地响应输入信号的突然增加。 本放大器在视频放大器的放大电路中特别有用。
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公开(公告)号：US4408167A
公开(公告)日：1983-10-04
申请号：US250775
申请日：1981-04-03
申请人： Dennis L. Rogers , Albert X. Widmer
发明人： Dennis L. Rogers , Albert X. Widmer
CPC分类号： H03F3/45089 , H03F3/42 , H03F2203/45301 , H03F2203/45318 , H03F2203/45702
摘要： A multi-stage current mode differential amplifier is disclosed in which each cascaded stage includes a pair of input transistors which have their bases connected to a common voltage source and a pair of control transistors which have their emitters connected to a common current source. A diode-like device is inserted between the collector of a control transistor in one stage and the emitter of an input transistor of the succeeding stage which increases the input impedance seen by the control transistor, thereby permitting an increase in amplification for that stage. In both embodiments, the current signal is amplified at a higher rate than the rate of increase of the bias currents supplied to the emitters of the control transistors in each stage. In one embodiment, the arrangement of the diode in the collector circuit of the control transistor permits the voltage sources connected to the bases of the input transistors to remain substantially constant for each cascaded stage in contrast to prior art devices where the voltages had to be increased for each additional stage.
摘要翻译： 公开了一种多级电流模式差分放大器，其中每个级联级包括一对输入晶体管，它们的基极连接到公共电压源，一对控制晶体管的发射极连接到公共电流源。 一个二极管状器件被插入在一级中的控制晶体管的集电极和后级的输入晶体管的发射极之间，这增加了由控制晶体管看到的输入阻抗，从而允许该级放大的增加。 在两个实施例中，电流信号以比在每个级中提供给控制晶体管的发射极的偏置电流的增加速率更高的速率被放大。 在一个实施例中，控制晶体管的集电极电路中的二极管的布置允许连接到输入晶体管的基极的电压源对于每个级联级保持基本上恒定，与必须增加电压的现有技术器件相反， 为每个额外的阶段。
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