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61. 发明授权

EP2747280B1 Electronic device and control method thereof 有权
标题翻译：及其电子装置及其控制方法
公开(公告)号：EP2747280B1
公开(公告)日：2016-07-27
申请号：EP13198647.3
申请日：2013-12-19
申请人： Samsung Electronics Co., Ltd
发明人： Lee, Jae-cheol , Kinm, Byung-soo , Youn, Joo-moon , Cho, Kee-yeong
IPC分类号： H03F3/02 , H03F3/181 , H03F3/20 , H03F5/00
CPC分类号： H03F3/02 , H03F3/181 , H03F3/20 , H03F5/00

62. 发明公开

EP2534755A1 WIDE BAND LNA WITH NOISE CANCELING 审中-公开
标题翻译：降噪宽带LNA
公开(公告)号：EP2534755A1
公开(公告)日：2012-12-19
申请号：EP11706086.3
申请日：2011-02-11
申请人： Qualcomm Incorporated
发明人： ZENG, Yi , LI, Xiaoyong , APTE, Rahul A.
IPC分类号： H03F1/26 , H03F3/195 , H03F1/42 , H03F3/347 , H03F3/21 , H03F3/02
CPC分类号： H03F1/0205 , H01B3/004 , H03F1/26 , H03F1/42 , H03F3/195 , H03F3/211 , H03F3/347 , H03F2200/294 , H03F2200/36 , H03F2200/372 , H03F2200/451
摘要： Techniques to improve low noise amplifiers (LNAs) with noise canceling are described. LNA includes a first (24) and a second (26) amplifier which work together to noise cancel the noise generated at an input stage circuit (22). The input stage circuit (22) receives an RF signal and is characterized by a first node and a second node. The first amplifier (24) converts a noise voltage at the first node into a first noise current at an output (220) of the first amplifier (24). The second amplifier (26) is directly coupled to the output of the first amplifier and provides noise canceling by summing the first noise current with a second noise current generated by the second amplifier as a function of the noise voltage at the second node. The proposed techniques eliminate the need for large ac coupling capacitors and reduce the die size occupied by the LNA.

63. 发明公开

EP3920415A1 VACUUM TUBE AMPLIFICATION SYSTEM CAPABLE OF REDUCING RESIDUAL NOISE AND A GROUNDING METHOD THEREOF 审中-公开
公开(公告)号：EP3920415A1
公开(公告)日：2021-12-08
申请号：EP20202167.1
申请日：2020-10-16
申请人： Echowell Electronic Co., Ltd.
发明人： Chen, Hsi-Hsien
IPC分类号： H03F1/28 , H03F3/02 , H03F3/181 , H03F3/68
摘要： A vacuum tube amplification system includes: a first power circuit electrically connected to utility power alternating voltage to transform it into a first DC voltage; a first vacuum tube amplification load circuit having a first grounding end, the first vacuum tube amplification load circuit using the first DC voltage as operating voltage; a second power circuit electrically connected to the utility power alternating voltage to transform it into a second DC voltage and output the second DC voltage; and a second vacuum tube amplification load circuit having a second grounding end, the second vacuum tube amplification load circuit using the second DC voltage as operating voltage. The first grounding end is not directly electrically connected to the second grounding end, the first grounding end and the second grounding end are each electrically connected to a compliance ground of the utility power alternating voltage through a jumper-wire zero-ohm resistor.

64. 发明公开

EP2701279A1 System and method of enabling a signal processing device in a relatively fast manner to process a low duty cycle signal 审中-公开
标题翻译：系统和方法的信号处理装置的用于与低工作周期处理信号的相对快速的激活
公开(公告)号：EP2701279A1
公开(公告)日：2014-02-26
申请号：EP13191350.1
申请日：2008-03-14
申请人： Qualcomm Incorporated
发明人： Fagg, Russell John
IPC分类号： H02J7/34 , H02M3/07 , H03F3/02 , H03F1/02 , H03F3/72
CPC分类号： H03F1/0261 , H02J7/345 , H02M3/07 , H02M2001/0019 , H03F3/72 , H03F2200/294 , H03F2200/451 , H03F2203/30099 , H03F2203/30132 , H03F2203/7206 , H03F2203/7215
摘要： A system and method of improving the power efficiency of a receiver with a low noise amplifier (LNA) for low duty cycle applications. A bias voltage generating apparatus is provided that uses a residual voltage from a prior operation to establish the current bias voltage for the LNA. In particular, the apparatus includes a controller adapted to tune an adjustable capacitor to a capacitance based on a residual voltage applied to a fixed capacitor, and couple the capacitors together to establish the bias voltage.
摘要翻译：一种系统，和用于低工作周期应用的低噪声放大器（LNA）改进接收器的功率效率的方法。偏置电压发生装置设置确实使用了残余电压从先前的外科手术来建立当前偏压为LNA。特别地，该装置包括控制器angepasst以调谐可调电容器基于施加到固定电容器的残余电压的电容，和耦合电容器一起建立的偏置电压。

65. 发明公开

EP1777814A2 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：EP1777814A2
公开(公告)日：2007-04-25
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
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
摘要： Method and apparatus contemplate: an output transformer (T108) having at least first (112A) and second (112B) separate primary windings and at least one secondary winding (114), each winding including a first (in phase) end and a second (out of phase) end; at least first and second active elements (104A,104B), each having at least a pair of power terminals and a control terminal, one power terminal of each active element being coupled to a common node; and a switching circuit (106) operable to change a circuit configuration of the first and second primary windings and the active elements between a class A mode and a class A/B mode.
摘要翻译：方法和装置，设想了：具有至少第一（112A）的输出变压器（T108）和第二（112B），单独的初级绕组和至少一个次级绕组（114），每个绕组包括第一（（同相）端部和第二出相位）端的; 至少第一和第二有源元件（104A，104B），每一个具有至少一对电源端子和控制端子，被耦合到公共节点的每个有源元件的一个电源端子; 和开关电路（106），可操作以改变所述第一和第二初级绕组和一类A模式和A / B类模式之间的有源元件的电路结构。

66. 发明公开

EP3826173A1 POWER SUPPLY APPARATUS AND METHOD FOR POWER AMPLIFIER 审中-公开
公开(公告)号：EP3826173A1
公开(公告)日：2021-05-26
申请号：EP19837408.4
申请日：2019-07-19
申请人： ZTE Corporation
发明人： LI, Xiangfeng , LI, Changlang , ZENG, Jixiang , LIU, Zhong , SUN, Wenchang , XIAO, Huanqing , ZHANG, Jinchao
IPC分类号： H03F3/02 , H03F3/20
摘要： A power supply apparatus and method for a power amplifier are disclosed. The power supply apparatus includes: a redundant circuit configured to supply an input voltage to a power-off holding circuit after performing redundancy on an output voltage of a first power circuit and an output voltage of a second power circuit, and to supply an input voltage to a gate voltage circuit after performing redundancy on the output voltage of the first power circuit and an output voltage of the power-off holding circuit; a power-off holding circuit configured to provide power-off energy holding and power-off delay to a gate voltage output by the gate voltage circuit; a detection and control circuit configured to inspect the power-off holding circuit during a power-on process, to detect a voltage of the power-off holding circuit and a voltage of the gate voltage circuit during a normal operation and a power-off process, and to realize, by enable control of an enable circuit, where a detection result satisfies a judgment condition, that power-on of the gate voltage is earlier than power-on of a drain voltage and that power-off of the gate voltage is later than power-off of the drain voltage.

67. 发明公开

EP1777814A3 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运行和A / B类操作的方法和装置
公开(公告)号：EP1777814A3
公开(公告)日：2008-03-05
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
摘要： Method and apparatus contemplate: an output transformer (T108) having at least first (112A) and second (112B) separate primary windings and at least one secondary winding (114), each winding including a first (in phase) end and a second (out of phase) end; at least first and second active elements (104A,104B), each having at least a pair of power terminals and a control terminal, one power terminal of each active element being coupled to a common node; and a switching circuit (106) operable to change a circuit configuration of the first and second primary windings and the active elements between a class A mode and a class A/B mode.

68. 发明公开

EP0772290A1 Tube amplifier 失效
标题翻译： Röhrenverstärker
公开(公告)号：EP0772290A1
公开(公告)日：1997-05-07
申请号：EP95307877.1
申请日：1995-11-06
申请人： WAKO TECHNICAL CO., LTD. , Yamasita, Fujio
发明人： Yamasita, Fujio
IPC分类号： H03F3/36 , H03F3/02
CPC分类号： H03F3/181 , H03F3/36
摘要： There is provided a tube amplifier comprising a first vacuum tube K3 having a plate applied with a positive voltage and a cathode applied with a negative voltage by a first resistor, a second vacuum tube K4 having a grid connected to the cathode of the first vacuum tube and a cathode or a heater applied with a voltage close to a potential of zero in relation to a plate voltage, and an output transformer TF1 having a first coil and a second coil which is connected to a loud-speaker, said first coil having a terminal connected to the plate of the second vacuum tube and another terminal applied with a positive voltage. Also, timer means is used to optimally maintain the grid voltage of the second vacuum tube when the power source is turned on, and the plate voltage of another vacuum tube K1 provided in a preceding stage of the first vacuum tube is controlled to maintain the negative voltage applied to the grid of the second vacuum tube at a desired value.
摘要翻译：提供一种管放大器，其包括具有施加正电压的板的第一真空管K3和通过第一电阻施加负电压的阴极，具有连接到第一真空管的阴极的栅极的第二真空管K4 以及施加有相对于板电压接近零电压的阴极或加热器，以及具有连接到扬声器的第一线圈和第二线圈的输出变压器TF1，所述第一线圈具有端子连接到第二真空管的板，另一个端子施加正电压。此外，当电源接通时，定时器装置用于最佳地维持第二真空管的电网电压，并且控制设置在第一真空管的前级中的另一个真空管K1的板电压以维持负施加到第二真空管的栅极上的电压处于期望值。

69. 发明公开

KR1020150069664A ＶＭＤＣ 전력증폭기 无效
标题翻译：真空管和MOSFET DARLINGTON连接功率放大器
公开(公告)号：KR1020150069664A
公开(公告)日：2015-06-24
申请号：KR1020130156063
申请日：2013-12-16
申请人： 정귀성
发明人： 정귀성
IPC分类号： H03F1/30 , H03F3/02
CPC分类号： H03F1/30 , H03F3/02
摘要： 3극진공관의히터지연특성을이용하여뮤팅(Muting) 기능을하고, 3극진공관의정전류동작시직선성을개선할수 있도록한 VMDC 전력증폭기에관한것으로, 바이어스전압에따라입력신호를증폭하는제1증폭단; 상기제1증폭단의출력을바이어스전압으로입력받아부하전류를제어하는제2증폭단; 상기제2증폭단에연결되어입력신호를증폭한신호를출력하는출력트랜스; 및상기제2증폭단의출력전류를상기제1증폭단에바이어스전압으로공급하는바이어스전압조절부를포함한다.
摘要翻译：本发明涉及通过使用三极管的加热器延迟特性具有静音功能的VMDC功率放大器，并且提高了三极管的恒定电流的操作的线性度。它包括根据通孔电压放大输入信号的第一放大端; 第二放大端子，其以偏置电压接收第一放大端子的输出并控制负载电流; 输出反相器，连接到第二放大端子，并输出具有放大信号的输入信号; 以及偏置电压控制部，其将第二放大端子的输出电流以偏置电压提供给第一放大端子。

70. 发明公开

KR1020140082342A 전자기기 및 그 제어방법 审中-实审
标题翻译：电子设备及其控制方法
公开(公告)号：KR1020140082342A
公开(公告)日：2014-07-02
申请号：KR1020120152197
申请日：2012-12-24
申请人： 삼성전자주식회사
发明人： 이재철 , 김병수 , 윤주문 , 조기영
IPC分类号： H03F3/02 , H03G5/06
CPC分类号： H03F3/02 , H03F3/181 , H03F3/20 , H03F5/00
摘要： The present invention provides an electronic device and a method for controlling the same which can allow a user to rapidly preheat a vacuum tube during an initial operation of an electronic device. The electronic device comprises an amplification unit which includes a vacuum tube to amplify an audio signal; a voltage supply unit which supplies one of a first voltage and a second voltage higher than the first voltage to a heater included in the vacuum tube; and a control unit which controls the voltage supply unit to supply the second voltage to the heater when the supply of driving power to the amplification unit starts and to supply the first voltage to the heater when the vacuum tube reaches a preset temperature. According to the electronic device of the present invention, a user can use a vacuum tube amplifier as soon as possible by rapidly preheating the vacuum tube during the initial operation of the electronic device.
摘要翻译：本发明提供一种电子设备及其控制方法，其可以允许用户在电子设备的初始操作期间快速预热真空管。电子设备包括放大单元，其包括用于放大音频信号的真空管; 电压供给单元，其向所述真空管内的加热器供给比所述第一电压高的第一电压和第二电压中的一个电压; 以及控制单元，当供电到放大单元的驱动电力开始时，控制电压供应单元向加热器供应第二电压，并且当真空管达到预设温度时，将第一电压提供给加热器。根据本发明的电子设备，用户可以在电子设备的初始操作期间通过快速预热真空管来尽快使用真空管放大器。

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