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31. 发明专利

JPS62237804A FILAMENT POWER SUPPLY CIRCUIT FOR ELECTRONIC TUBE POWER AMPLIFIER 失效
公开(公告)号：JPS62237804A
公开(公告)日：1987-10-17
申请号：JP8176286
申请日：1986-04-08
申请人： NEC CORP
发明人： FUJIWARA SHOZABURO
IPC分类号： H02J1/00 , H03F3/02
摘要： PURPOSE:To obtain a filament power supply circuit of an electronic tube power amplifier with simple circuit constitution by changing the ratio of the on/off control periods of switching elements connected as a bridge by means of the switching of an external switch. CONSTITUTION:The switching circuit 3 of the filament power supply unit 1 of an electron tube 5 consists of MOSFET switching elements TR1-TR4 of bridge constitution. A DC voltage whose direction is commentated is impressed from a rectifier circuit 2 to a transformer 1 intermittently by repeating the state of the elements TRs 1,3 turned on and the TRs 2,4 turned off, the TRs 1-4 all turned off, the TRs 2,4 turned on and the TRs 1, 3 turned off, and the TRs 1-4 all turned off by a control signal of the control circuit 4. The secondary voltage of the transformer T1 is rectified (7) to heat the filament of the electron tube 5. In changing the ratio of the switching period of the switch 6, the voltage impressed to the filament is changed and the filament power supply circuit with simple constitution and less power consumption is obtained.

32. 发明专利

JPS4637312B1 失效
公开(公告)号：JPS4637312B1
公开(公告)日：1971-11-02
申请号：JP5139265
申请日：1965-08-24
IPC分类号： G01R19/00 , G01T1/185 , H03F3/02

33. 发明公开

EP1728320A4 METHOD AND APPARATUS FOR DOHERTY AMPLIFIER BIASING 审中-公开
标题翻译：方法和设备用于预加载的Doherty放大器
公开(公告)号：EP1728320A4
公开(公告)日：2007-07-18
申请号：EP05712099
申请日：2005-01-26
申请人： FREESCALE SEMICONDUCTOR INC
发明人： KRVAVAC ENVER , MITZLAFF JAMES E , VAN HORN MARK I
IPC分类号： H03F3/04 , H03F1/02 , H03F1/07 , H03F1/30 , H03F3/02
CPC分类号： H03F1/0288 , H03F1/301 , H03F3/04 , H03F2200/18 , H03F2200/366 , H03F2200/75
摘要： Apparatus and methods are described for biasing amplifiers with multiple outputs. A semiconductor die (100) may include a reference Field Effect Transistor (FET) (112) integrated on the semiconductor die and coupled to an amplifier (116) integrated on the semiconductor die. A voltage offset circuit (114) may also be integrated on the semiconductor die (100) for determining the voltage needed to operate the amplifier (116).

34. 发明授权

EP1777814B1 Methods and apparatus for switching between class A and A/B operation in a power amplifier 有权
标题翻译：类之间切换的功率放大器的操作和A / B类操作的方法和装置
公开(公告)号：EP1777814B1
公开(公告)日：2011-07-27
申请号：EP06076871.0
申请日：2006-10-12
申请人： Peavey Electronics Corporation
发明人： Fields, John Calvin , Peavey, Hartley D.
IPC分类号： H03F3/26 , H03F3/28 , H03F3/30 , H03F3/181 , H03F3/02 , H03F3/20 , H03F1/02 , H03F3/21
CPC分类号： H03F3/26 , H03F1/0261 , H03F3/02 , H03F3/181 , H03F3/20 , H03F3/211 , H03F3/28 , H03F3/30 , H03F2200/27 , H03F2200/421 , H03F2200/541 , H03F2203/21145

35. 发明申请

WO2020015755A1 一种功放供电装置和方法审中-公开
公开(公告)号：WO2020015755A1
公开(公告)日：2020-01-23
申请号：PCT/CN2019/096887
申请日：2019-07-19
申请人：中兴通讯股份有限公司
发明人：李祥峰 , 黎昌浪 , 曾吉祥 , 刘重 , 孙文昌 , 校焕庆 , 张金超
IPC分类号： H03F3/02 , H03F3/20
摘要：本文公开了一种功放供电装置和方法；功放供电装置包括：冗余电路，设置为在对第一电源电路的输出电压与第二电源电路的输出电压做冗余后，为下电保持电路提供输入电压；在对第一电源电路的输出电压与下电保持电路的输出电压做冗余后，为栅极电压电路提供输入电压；下电保持电路，设置为对栅极电压电路输出的栅极电压提供下电能量的保持和下电延时；检测控制电路，设置为在上电过程中，对下电保持电路做检测，在正常工作和下电过程中对下电保持电路的电压与栅极电压电路的电压做检测，在检测结果满足判断条件的情况下，通过使能电路的使能控制，实现栅极电压早于漏极电压上电和栅极电压晚于漏极电压下电。

36. 发明申请

WO2022265728A2 MILLIMETER-WAVE CLASS EF POWER AMPLIFIER WITH CONCURRENT HARMONIC AND SUBHARMONIC TUNING 审中-公开
公开(公告)号：WO2022265728A2
公开(公告)日：2022-12-22
申请号：PCT/US2022/026193
申请日：2022-04-25
申请人： UNIVERSITY OF SOUTHERN CALIFORNIA
发明人： CHEN, Shuo-Wei , ZHANG, Aoyang
IPC分类号： H03F3/217 , H03F3/21 , H03F3/213 , H03F3/02 , H03F3/60 , H03F3/68 , H03F1/0205 , H03F1/565 , H03F2200/408 , H03F2200/451 , H03F3/195 , H03F3/2171 , H03F3/2176
摘要： A subharmonic switching power amplifier architecture includes a power amplifier core that includes at least one power amplifier that receives an input signal and is operable in a power back-off region. Characteristically, the at least one power amplifier is configured to be toggled at a carrier frequency (Fc) when the power level of the input signal is equal to or higher than a predetermined power level and at a subharmonic component of the carrier frequency when the power level of the input signal is less than the predetermined power level. Concurrent harmonic tuning and subharmonic tuning is implemented to enhance the efficiency at both peak power mode and power back-off mode. Characteristically, the power amplifier being configured to be operated by a voltage mode or current mode driver and in the current mode with zero-voltage-switching.

37. 发明申请

WO98039952A1 APPARATUS AND METHOD FOR MONITORING, CONTROLLING, DISPLAYING AND DISSIPATING AN ELECTROSTATIC CHARGE 审中-公开
标题翻译：用于监测，控制，显示和消除静电电荷的装置和方法
公开(公告)号：WO98039952A1
公开(公告)日：1998-09-11
申请号：PCT/US1998/004296
申请日：1998-03-03
IPC分类号： H03F3/02 , H05F3/02 , G01R29/24
CPC分类号： H05F3/02
摘要： An apparatus and method for monitoring, controlling, displaying, and dissipating an electrostatic charge from an object such as a computer monitor, television, workbench, telephone handset or person. An electrostatic charge is electrically coupled to an input terminal of an electrostatic dissipator. The electrostatic dissipator includes a "hardening" circuit, such as a voltage-overload circuit, which serves to protect the components of the electrostatic dissipator itself. As the electrostatic charge is dissipated, a display indicates the level of electrostatic charge being dissipated. This indication permits trouble-shooting electrostatic charge problem areas as well as increasing user awareness of electrostatic problems. A conductive electrostatic solution used in conjunction with the electrostatic dissipator improves dissipation of the electrostatic charge. Similarly, the electrostatic dissipator improves the efficiency of a conductive electrostatic solution.
摘要翻译：一种用于监测，控制，显示和耗散来自诸如计算机监视器，电视机，工作台，电话听筒或人的物体的静电电荷的装置和方法。静电荷电耦合到静电消除器的输入端。静电消除器包括一个“硬化”电路，例如电压过载电路，其用于保护静电消散器本身的部件。当静电电荷消散时，显示屏表示静电电荷的消耗水平。该指示允许故障排除静电电荷问题区域以及增加用户对静电问题的意识。与静电消除器结合使用的导电静电溶液改善了静电电荷的耗散。类似地，静电消除器提高了导电静电溶液的效率。

38. 实用新型

CN2862541Y 多载波基站放大器失效
公开(公告)号：CN2862541Y
公开(公告)日：2007-01-24
申请号：CN200520036397.6
申请日：2005-11-30
申请人：李学军
发明人：李学军
IPC分类号： H04Q7/30 , H03F3/02
CPC分类号： Y02D70/44
摘要：本实用新型公开了一种多载波基站放大器，包括输入端、输出端和线性功率放大器，所述输入端外接基站机柜的多载波输出接口，所述线性功率放大器将输入的多路混合载波信号进行放大，所述输出端将放大后的混合信号经过电缆输出至基站的塔顶放大器或天线。本实用新型有益的技术效果在于：采用线性功率放大器直接对基站输出的多载波发射信号进行放大，能够直接与基站机柜的下行输出口连接，避免对基站内部造成不良影响。同时不必对多载波信号进行分路和合路，大大减少了功率损耗，降低了系统复杂程度，更易于安装和维护。

39. 实用新型

CN2792023Y 周边式真空管音效装置失效
公开(公告)号：CN2792023Y
公开(公告)日：2006-06-28
申请号：CN200520019738.9
申请日：2005-05-23
申请人：讯凯国际股份有限公司
发明人：黄国华
IPC分类号： H03F3/02 , G06F3/16 , H04R5/04
摘要：本实用新型是一种周边式真空管音效装置，是将真空管扩大机整合于一符合计算机外设尺寸规格的机匣上，供安装在计算机主机上预留的外围设备扩充槽内；该机匣的面板上可分设音量单位指示表、音量控制器及耳机插孔等，供使用者了解音压的量度，并可直接手动调整音量，藉以让使用者方便于计算机前端直接聆听真空管音效；又机匣上可进一步设置一窗口，供真空管扩大机的真空管光线向外透射；利用前述设计可使计算机输出音源具有趋近于专业级的音质表现，且无须变更主机规格，实现障碍低。

40. 实用新型

CN2591907Y 采用电子管放大器的有源音箱失效转让
公开(公告)号：CN2591907Y
公开(公告)日：2003-12-10
申请号：CN02249551.7
申请日：2002-11-13
申请人：曾德钧
发明人：曾德钧
IPC分类号： H04R1/20 , H03F3/02
CPC分类号： H04R1/24
摘要：一种采用电子管放大器的有源音箱，包括箱体、装在箱体内的放大器以及由放大器驱动发声的扬声器，其放大器通过电路板(PCB)或通过金属连接件安装在音箱箱体上或音箱内，其中放大器至少包含有一个电子管。该电子管可通过管脚连接到电路板上，透过箱体上通孔将电子管玻壳部分外露或直接嵌装在箱体的一个面上。这种有源音箱，由于设置了电子管，使得其声音更具有模拟声特质，更柔顺，更自然，更Hi－Fi，并可直接接驳计算机声卡的音频输出端口上，也可以接到CD、MP3、DVD及其它有声频输出的设备上，同时，还设计将工作时闪烁发光、不工作时晶莹透亮的电子管装在音箱外面，大大增强了有源音箱的装饰性。比起传统接法，更紧凑，更省空间，成本更低。

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