公开(公告)号：US6087904A

公开(公告)日：2000-07-11

申请号：US163476

申请日：1998-09-30

申请人： Zhongmin Wen

发明人： Zhongmin Wen

IPC分类号： H03C1/40 ,  H03C1/36 ,  H03C1/38

CPC分类号： H03C1/36

摘要： The present invention provides a modulation circuit that has excellent modulation characteristics and can be designed as an MMIC. Consequently, this modulation circuit is such that the modulating wave input means is composed of a capacitor 21 and an inductor 22, the carrier input means is composed of a capacitor 23 and a resistance element 24, the self-bias means is composed of a resistance element 26 and a capacitor 27, the carrier selection means is composed of an inductor 22 and a capacitor 28, and the modulated wave output means is composed of a capacitor 28.

摘要翻译： 本发明提供一种具有优良调制特性的调制电路，可以设计成MMIC。 因此，该调制电路使得调制波输入装置由电容器21和电感器22组成，载体输入装置由电容器23和电阻元件24组成，自偏置装置由电阻 元件26和电容器27，载波选择装置由电感器22和电容器28构成，调制波输出装置由电容器28构成。

公开(公告)号：US07274266B2

公开(公告)日：2007-09-25

申请号：US11351929

申请日：2006-02-10

申请人： Thomas Kirchmeier

发明人： Thomas Kirchmeier

IPC分类号： H04L27/04 ,  H03K7/02 ,  H03C1/36 ,  H03C1/38

CPC分类号： H03C1/36

摘要： A method is performed for influencing the signal shape of an output signal of an RF power resonance amplifier and an RF excitation arrangement including an RF power resonance amplifier. A basic signal of a basic frequency is amplified and modulated with a modulation signal, and an output oscillating circuit of the RF power resonance amplifier is tuned to a frequency in the range of the basic frequency, and is excited with the basic signal during normal operation. At times that are or can be predetermined, the output oscillating circuit is driven with a driving signal that differs from the basic signal, for a time period that is or can be predetermined. This reduces the dying down time of the output oscillating circuit and increases the steepness of the output signal edges.

摘要翻译： 执行影响RF功率谐振放大器的输出信号的信号形状和包括RF功率共振放大器的RF激励装置的方法。 基本频率的基本信号用调制信号进行放大和调制，RF功率谐振放大器的输出振荡电路调谐到基本频率范围内的频率，并在正常工作期间用基本信号激发 。 在有或者可以预定的时刻，输出振荡电路用与基本信号不同的驱动信号驱动一段时间，该时间段是或可以预定的。 这减少了输出振荡电路的垂死时间并增加了输出信号边沿的陡度。

公开(公告)号：US3829797A

公开(公告)日：1974-08-13

申请号：US38149073

申请日：1973-07-23

申请人： KARKAR ELECTRONICS INC

发明人： KARKAR E ,  KOVALEVSKI N

IPC分类号： H03C1/36 ,  H03C1/54 ,  H03C1/38

CPC分类号： H03C1/36 ,  H03C1/547 ,  H03C2200/0066

摘要： An amplitude modulator using an FET, or MOSFET and a coupling and phase splitting device capable of accepting both single ended and balanced inputs (like for example, a differential amplifier or a center tapped choke coil, or a transformer). The source and drain terminals are connected to the differential inputs (outputs) of the device, and the signal to the single ended input of the device. The carrier is applied to the gate terminal of the FET or MOSFET. The switching action of the device is equally efficient for both single ended and differential inputs (outputs). However, the carrier leak voltage is being applied simultaneously to both terminals of the differential input and thus suppressed in the output by virtue of high suppression of longitudinal (common) mode pertinent to devices with differential inputs (outputs). Other modulators are disclosed including a double balanced modulator using two complimentary field effect transistors and a double balanced modulator using two field effect transistors of the same conductivity type.

摘要翻译： 使用FET或MOSFET的振幅调制器和能够接受单端和平衡输入（例如，差分放大器或中心抽头扼流线圈或变压器）的耦合和相位分离装置。 源极和漏极端子连接到器件的差分输入（输出），并将信号连接到器件的单端输入。 载波被施加到FET或MOSFET的栅极端子。 器件的开关动作对于单端和差分输入（输出）同样有效。 然而，载波泄漏电压同时施加到差分输入的两个端子，并因此通过与差分输入（输出）的器件相关的纵向（公共）模式的高抑制而在输出中被抑制。 公开了包括使用两个互补场效应晶体管的双平衡调制器和使用相同导电类型的两个场效应晶体管的双平衡调制器的其它调制器。

公开(公告)号：US5896182A

公开(公告)日：1999-04-20

申请号：US661514

申请日：1996-06-11

申请人： Philippe Klaeyle

发明人： Philippe Klaeyle

IPC分类号： H04N5/40 ,  H03C1/38 ,  H03C1/54 ,  H04N5/62

CPC分类号： H03C1/545 ,  H03C2200/0012 ,  H03C2200/0025

摘要： Amplitude modulator comprising a differential input pair receiving a modulating input signal, and a Gilbert cell multiplying a carrier signal by the modulating input signal; anda second differential pair of transistors receiving the carrier signal, and the output signal of which is added to the output signal of the Gilbert cell.

摘要翻译： 幅度调制器，包括接收调制输入信号的差分输入对，以及吉尔伯特单元，通过调制输入信号将载波信号相乘; 以及接收载波信号的第二差分对晶体管，其输出信号被添加到吉尔伯特单元的输出信号。

公开(公告)号：US3475699A

公开(公告)日：1969-10-28

申请号：US3475699D

申请日：1967-09-20

申请人： ERICSSON TELEFON AB L M

发明人： FJALLBRANT TORE TORSTENSSON

IPC分类号： H03C1/50 ,  H03C7/02 ,  H03C1/38

CPC分类号： H03C7/022 ,  H03C1/50

公开(公告)号：US3898590A

公开(公告)日：1975-08-05

申请号：US42752073

申请日：1973-12-26

申请人： HARRIS INTERTYPE CORP

发明人： SWANSON HILMER I

IPC分类号： H03C1/36 ,  H03C1/38

CPC分类号： H03C1/36 ,  Y10T307/391

摘要： An amplitude modulator, which has a combining circuit for combining a carrier wave with a power modulating signal to control the amplitude of an output wave of carrier frequency in accordance with the power modulating signal, is very efficient and has low distortion. The power modulating signal is produced by two transistors, one of which is energized by a low DC power supply voltage and the other by a high DC power supply voltage. The lower-voltage transistor alone performs the modulation when an input modulation signal voltage is in the lower-voltage half of its range, and the higher-voltage transistor alone operates to perform the modulation when the input modulation signal is in the higher-voltage half. Neither transistor dissipates much power when the input modulation signal voltage is in the center of its operating range or when the other transistor is active to perform the modulation.

摘要翻译： 具有用于组合载波和功率调制信号以根据功率调制信号来控制载波频率的输出波的振幅的组合电路的幅度调制器是非常有效的并且具有低失真。 功率调制信号由两个晶体管产生，其中一个由低直流电源电压供电，另一个由高直流电源电压供电。 当输入调制信号电压处于其范围的较低电压的一半时，低电压晶体管单独进行调制，并且仅当高电压晶体管工作时，当输入调制信号处于较高电压的一半 。 当输入调制信号电压处于其工作范围的中心时，或当另一个晶体管有效以执行调制时，两个晶体管都不会消耗大量功率。

公开(公告)号：US3866148A

公开(公告)日：1975-02-11

申请号：US41835273

申请日：1973-11-23

申请人： US NAVY

发明人： LISLE JR THOMAS K ,  ROMANCHAK JOSEPH

IPC分类号： H03C1/54 ,  H03C1/38

CPC分类号： H03C1/545 ,  H03C2200/0012 ,  H03C2200/0079

摘要： An amplitude modulator capable of 100% modulation with low modulation distortion, adaptable to all practical amplitude modulation requirements from D.C. to 120 MHz. The circuit has a differential amplifier with an R.F. input and a bias current from an ultra-linear, voltage-tuned constant current source which is transistor controlled. The differential amplifier provides full limiting of the R.F. input and is biased with a current source comprised of an operational amplifier with its feedback connected to include the bias current controlling transistor.

摘要翻译： 能够以低调制失真100％调制的幅度调制器，适用于从直流到120 MHz的所有实际振幅调制要求。 该电路具有带R.F.的差分放大器。 输入和来自晶体管控制的超线性，电压调谐恒定电流源的偏置电流。 差分放大器完全限制了R.F. 输入并且由包括运算放大器的电流源偏置，其反馈被连接以包括偏置电流控制晶体管。