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51. 发明授权

US2218094A Receiver or amplifier with means for saving current at lower volume 失效
标题翻译：接收器或放大器，具有以较低音量节省电流的方式
公开(公告)号：US2218094A
公开(公告)日：1940-10-15
申请号：US16751337
申请日：1937-10-06
申请人： TELEFUNKEN GMBH
发明人： HELMUT PITSCH
IPC分类号： H03F1/04 , H03G3/06 , H04B1/16
CPC分类号： H03G3/06 , H03F1/04 , H04B1/1623

52. 发明授权

US2143689A Automatic bias control 失效
标题翻译：自动偏置控制
公开(公告)号：US2143689A
公开(公告)日：1939-01-10
申请号：US7894936
申请日：1936-05-09
申请人： GEN ELECTRIC
发明人： DOME ROBERT B
IPC分类号： H03F1/04
CPC分类号： H03F1/04

53. 发明授权

US2009833A Electric power converting apparatus 失效
公开(公告)号：US2009833A
公开(公告)日：1935-07-30
申请号：US47816430
申请日：1930-08-27
申请人： GEN ELECTRIC
发明人： BEDFORD BURNICE D
IPC分类号： H02M7/51 , H03F1/04 , H03F3/02 , H03F3/40
CPC分类号： H03F1/04 , H02M7/51 , H03F3/02 , H03F3/40

54. 发明授权

US1756893A Electron-discharge apparatus 失效
公开(公告)号：US1756893A
公开(公告)日：1930-04-29
申请号：US4088325
申请日：1925-07-01
申请人： GEN ELECTRIC
发明人： WARNER JOHN C
IPC分类号： H03F1/04
CPC分类号： H03F1/04

55. 发明公开

KR20210028157A 실시간 및 적응형 무선 주파수 전력 보호 审中-公开
公开(公告)号：KR20210028157A
公开(公告)日：2021-03-11
申请号：KR20207036429
申请日：2019-04-02
IPC分类号： H03F1/02 , H03F1/04 , H03F1/54 , H03F3/189 , H03F3/24 , H03F3/72 , H04B1/40
摘要： 본발명은, 증폭기회로및 보호회로를포함하는장치에관한것이다. 증폭기회로는입력포트에서수신되는입력신호를증폭하여출력신호를생성하도록구성될수 있다. 입력신호는무선주파수신호일수 있다. 보호회로는 (ⅰ) 입력신호의레벨이해당하는임계치를초과할때를감지하여감지신호를생성하는데, 여기서레벨은전력레벨, 전압레벨, 또는둘 다이고, (ⅱ) 감지신호가제1 지속시간이상계속해서활성인것에응답하여입력신호가증폭기회로의입력포트를우회하는경로를설정하고증폭기회로를불능시키고, (ⅲ) 감지신호가제2 지속시간이상계속해서비활성인것에응답하여입력신호가증폭기회로의입력포트로가는경로를설정하고증폭기회로를가동시키도록구성될수 있다.

56. 发明授权

US11431369B2 Self-calibrated multi-channel transmission system for a satellite payload 有权
公开(公告)号：US11431369B2
公开(公告)日：2022-08-30
申请号：US17283520
申请日：2019-10-07
申请人： THALES
发明人： Yann Oster , Aubin Michel Lecointre , Aline Briand
IPC分类号： H04B1/12 , H03F1/04 , H03F1/32 , H03F3/60 , H03F3/68 , H04B1/04
摘要： A multichannel transmission system which includes a calibration functionality that allows precise calibration of the frequency conversion chains and of the multiport amplifier of the system to be performed without interruption of service. The proposed calibration makes it possible to correct the defects over the entire frequency band of the system.

57. 发明授权

US11316479B1 Load insensitive power amplifier with quadrature combiner 有权
公开(公告)号：US11316479B1
公开(公告)日：2022-04-26
申请号：US17063588
申请日：2020-10-05
申请人： Cobham Advanced Electronic Solutions, Inc.
发明人： Daniel Martin , Alan Haney , Chui Hong Park
IPC分类号： H03F1/30 , H03F3/24 , H04B1/04 , H03F1/04
摘要： This application is directed to methods and devices for an efficient power amplification system. An electronic device includes a first and a second power amplifier that are coupled to a quadrature combiner, a temperature monitoring circuit coupled to the first and second power amplifiers, and a controller coupled to the temperature monitoring circuit. The temperature monitoring circuit is configured to determine a temperature difference between the first and second power amplifiers. The controller is configured to adjust operation of at least one of the first and second power amplifiers to reduce the temperature difference between the first and second power amplifiers.

58. 发明授权

US10256776B1 Steered current source for single-ended class-A amplifier 有权
公开(公告)号：US10256776B1
公开(公告)日：2019-04-09
申请号：US16116015
申请日：2018-08-29
申请人： WESTERN ELECTRIC EXPORT CORPORATION
发明人： Guenther Mania , Charles George Whitener, Jr.
IPC分类号： H03F1/04 , H03F3/30 , H04R3/00 , H03F3/181
摘要： A single-ended Class-A amplifier includes an amplification component (e.g., a vacuum tube) having at least an output terminal, a reference terminal and a control terminal. The control terminal receives a time-varying input signal. The amplification component responds to the time-varying input signal to vary an output voltage on the output terminal and to vary a current flowing between the output terminal and the reference terminal. A load is AC-coupled to the output terminal. A steered current source has a voltage input coupled to the output terminal and has a steered current output coupled to the output terminal. The steered current source is configured to increase the steered current to provide current to the load when the output voltage on the output terminal of the amplification component increases and to decrease the steered current when the output voltage on the output terminal of the amplification component decreases.

59. 发明授权

US09503023B2 Class-D amplifier 有权
标题翻译： D类放大器
公开(公告)号：US09503023B2
公开(公告)日：2016-11-22
申请号：US14676411
申请日：2015-04-01
申请人： NXP B.V.
发明人： Fré Jorrit Jorritsma , Mattheus Johan Koerts , Fred Mostert
IPC分类号： H03F3/217 , H03F1/04 , H03F1/02 , H03F3/185 , H03F3/21
CPC分类号： H03F1/0205 , H03F3/181 , H03F3/185 , H03F3/211 , H03F3/217 , H03F3/2173 , H03F3/2175 , H03F2200/03 , H03F2200/129 , H03F2200/351 , H03F2203/21142
摘要： One example discloses a class-D amplifier apparatus, comprising: an amplifier circuit, having a set of input terminals, a set of output terminals, a quiescent circuit configuration, and an active circuit configuration; an amplifier control device, coupled to the amplifier circuit; wherein the amplifier control device is configured to place the amplifier circuit in the quiescent circuit configuration before measuring a voltage between the set of output terminals; wherein the amplifier control device is configured to add the output terminals voltage from the set of input terminals before placing the amplifier circuit in the active circuit configuration.
摘要翻译：一个例子公开了一种D类放大器装置，包括：放大器电路，具有一组输入端子，一组输出端子，静态电路配置和有源电路配置; 放大器控制装置，耦合到放大器电路; 其中所述放大器控制装置被配置为在测量所述一组输出端子之间的电压之前将所述放大器电路放置在所述静态电路配置中; 其中所述放大器控制装置被配置为在将所述放大器电路置于所述有源电路配置之前，将所述输入端子组的输出端子电压相加。

60. 发明授权

US07884670B2 Class D amplifier 有权
标题翻译： D类放大器
公开(公告)号：US07884670B2
公开(公告)日：2011-02-08
申请号：US12685884
申请日：2010-01-12
申请人： Sehat Sutardja
发明人： Sehat Sutardja
IPC分类号： H03F1/04
CPC分类号： H03F3/2173 , H03F3/217 , H03F2200/421 , H03F2200/78
摘要： A Class D amplifier includes a ramp generator configured to generate a first signal and a second signal. Each of the first signal and the second signal oscillate between a minimum value and a maximum value. A signal generator is configured to receive an input signal, the first signal and the second signal. The input signal has a value that is between the minimum value and the maximum value. A signal generator is configured to generate a third signal and a fourth signal. The third signal is generated based on each of the first signal and the second signal transitioning from a value above the value of the input signal to a value below the value of the input signal. The fourth signal is generated based on each of the first signal and the second signal transitioning from a value below the value of the input signal to a value above the value of the input signal. An output stage is configured to drive a load based on the third signal and the fourth signal.
摘要翻译： D类放大器包括被配置为产生第一信号和第二信号的斜坡发生器。第一信号和第二信号中的每一个在最小值和最大值之间振荡。信号发生器被配置为接收输入信号，第一信号和第二信号。输入信号具有在最小值和最大值之间的值。信号发生器被配置为产生第三信号和第四信号。第三信号是基于第一信号和第二信号中的每一个从从输入信号的值之上的值转换到低于输入信号的值的值来产生的。第四信号基于第一信号和第二信号中的每一个从低于输入信号值的值转换到高于输入信号值的值来产生。输出级被配置为基于第三信号和第四信号来驱动负载。

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