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51. 发明授权

US09515617B2 Audio amplifier using multi-level pulse width modulation 有权
标题翻译：音频放大器采用多级脉宽调制
公开(公告)号：US09515617B2
公开(公告)日：2016-12-06
申请号：US13881509
申请日：2011-10-27
申请人： Mikkel Høyerby
发明人： Mikkel Høyerby
IPC分类号： H03F99/00 , H03F3/00 , H03F3/217 , H02M7/487
CPC分类号： H03F1/0244 , H02M7/487 , H03F3/00 , H03F3/187 , H03F3/2173 , H03F3/2178 , H03F2200/03 , H03F2200/267 , H03F2200/333 , H04R3/02
摘要： The present invention relates in one aspect to a class D audio amplifier with improved output driver topology supporting multi-level output signals such as 3-level, 4-level or 5-level pulse width or pulse density modulated output signals for application to a loudspeaker load. The present class D audio amplifiers are particularly well-suited for high-volume consumer audio applications and solutions.
摘要翻译：本发明在一个方面涉及一种具有改进的输出驱动器拓扑的D类音频放大器，其支持诸如3电平，4电平或5电平脉冲宽度的多电平输出信号或用于应用于扬声器的脉冲密度调制输出信号加载。目前的D类音频放大器特别适用于大容量消费音频应用和解决方案。

52. 发明授权

US09385610B2 Power supply with tickle pulse injection 有权
标题翻译：电源带有脉动脉冲注入
公开(公告)号：US09385610B2
公开(公告)日：2016-07-05
申请号：US14300273
申请日：2014-06-10
申请人： Bose Corporation
发明人： Kenneth B. DelPapa , Michael Nussbaum , Andrew Ferencz
IPC分类号： H02M3/335 , H02M3/24 , H02M3/338 , H03F3/20 , H03F1/02 , H03F3/00 , H02M1/44 , H02M1/00
CPC分类号： H02M3/24 , H02M1/44 , H02M3/3387 , H02M2001/0032 , H03F1/0216 , H03F3/00 , H03F3/20 , Y02B70/16
摘要： A power supply injects a series of “tickle” pulses into a pulse width modulated (PWM) controller to induce the controller to generate PWM pulses at a minimum switching frequency, preferably one that is super-sonic (especially for audio applications). The switching frequency may also be selected or controlled such that it avoids resonances in the power supply. The “tickle” pulses may be clocked by the same clock that times the PWM controller, and they may be shaped to help ensure that the power supply maintains some regulation during low-load conditions.
摘要翻译：电源将脉冲宽度调制（PWM）控制器中的一系列“痒痒”脉冲引入到控制器中，以最小的开关频率产生PWM脉冲，最好是超声波（特别是音频应用）。还可以选择或控制开关频率，使得它避免了电源中的谐振。 “痒痒”脉冲可以与PWM控制器相同的时钟进行计时，并且它们的形状可以帮助确保电源在低负载条件下保持一些调节。

53. 发明授权

US09134740B2 Low dropout regulator having differential circuit with X-configuration 有权
标题翻译：低压差稳压器，具有X形配置的差分电路
公开(公告)号：US09134740B2
公开(公告)日：2015-09-15
申请号：US13931347
申请日：2013-06-28
申请人： KABUSHIKI KAISHA TOSHIBA
发明人： Ichiro Nishikawa , Yuichi Goto
IPC分类号： G05F1/56 , G05F1/46 , G05F1/575 , H03F3/00
CPC分类号： G05F1/468 , G05F1/56 , G05F1/575 , H03F3/00
摘要： A regulator includes a first transistor, a first bias circuit, a second bias circuit, a differential circuit having second to fifth transistors, and a current mirror circuit. The first transistor outputs an output voltage lower than the input voltage. The first bias circuit generates a first bias voltage lower than a reference voltage. The second bias circuit generates a second bias voltage lower than a feedback voltage relating to the output voltage. The second transistor into which the reference voltage is inputted and the third transistor into which the feedback voltage is inputted are a pair of differential transistors. The fourth transistor is complementarily connected to the second transistor. The fifth transistor is complementarily connected to the third transistor. The differential circuit outputs a comparison signal to the first transistor. The current mirror circuit is connected to the second and third transistors.
摘要翻译：调节器包括第一晶体管，第一偏置电路，第二偏置电路，具有第二至第五晶体管的差分电路和电流镜电路。第一晶体管输出低于输入电压的输出电压。第一偏置电路产生低于参考电压的第一偏置电压。第二偏置电路产生低于与输出电压有关的反馈电压的第二偏置电压。输入参考电压的第二晶体管和输入反馈电压的第三晶体管是一对差分晶体管。第四晶体管互补地连接到第二晶体管。第五晶体管互补地连接到第三晶体管。差分电路将比较信号输出到第一晶体管。电流镜电路连接到第二和第三晶体管。

54. 发明授权

US09059663B2 Audio output circuit, electronic device using the same, and audio integrated circuit 有权
标题翻译：音频输出电路，电子设备使用相同，和音频集成电路
公开(公告)号：US09059663B2
公开(公告)日：2015-06-16
申请号：US13793317
申请日：2013-03-11
申请人： ROHM CO., LTD.
发明人： Hideki Munenaga , Takeshi Onodera
IPC分类号： H03F99/00 , H03F3/00 , H03F3/217
CPC分类号： H03F3/00 , H03F3/187 , H03F3/2173
摘要： An audio output circuit for driving an electro-acoustic transducer includes first and second D-class amplifiers, a pulse modulator to receive an audio signal and generate first and second pulse signals for driving first and second D-class amplifiers, first and second drivers to drive first and second D-class amplifiers in response to first and second pulse signals, respectively, a common mode choke coil, and a delay setting circuit to apply a relative delay to output signals of the first and second D-class amplifiers.
摘要翻译：用于驱动电声换能器的音频输出电路包括第一和第二D级放大器，用于接收音频信号并产生用于驱动第一和第二D级放大器的第一和第二脉冲信号的脉冲调制器，第一和第二驱动器分别响应于第一和第二脉冲信号驱动第一和第二D级放大器，共模扼流线圈以及对第一和第二D级放大器的输出信号施加相对延迟的延迟设置电路。

55. 发明申请

US20150138960A1 SIGNAL AMPLIFIERS THAT SWITCH TO AN ATTENUATED OR ALTERNATE COMMUNICATIONS PATH IN RESPONSE TO A POWER INTERRUPTION 有权
标题翻译：信号放大器，切换到衰减或替代通信路径，以响应电源中断
公开(公告)号：US20150138960A1
公开(公告)日：2015-05-21
申请号：US14602301
申请日：2015-01-22
申请人： CommScope, Inc. of North Carolina
发明人： Robert R. Riggsby , Shi Man Li , Ming Yao Lee
IPC分类号： H04W24/04 , H03F3/19 , H04W52/52 , H04L5/14 , H04W52/38 , H03F1/02 , H04L5/08
CPC分类号： H04W24/04 , H03F1/02 , H03F3/00 , H03F3/19 , H03F3/195 , H03F3/72 , H03F2200/231 , H03F2200/451 , H04L5/08 , H04L5/1461 , H04W52/38 , H04W52/52
摘要： RF signal amplifiers are provided that include an RF input port, a switching device having an input that is coupled to the RF input port, a first output and a second output, a first diplexer having an input that is coupled to both the first output of the switching device and the second output of the switching device, and a first RF output port that is coupled to an output of the first diplexer. These amplifiers further include an attenuator that is coupled between the second output of the switching device and the input of the first diplexer.
摘要翻译：提供RF信号放大器，其包括RF输入端口，具有耦合到RF输入端口的输入的开关器件，第一输出端和第二输出端，第一双工器，其输入耦合到所述开关装置和所述开关装置的第二输出端以及耦合到所述第一双工器的输出端的第一RF输出端口。这些放大器还包括耦合在开关器件的第二输出端和第一双工器的输入端之间的衰减器。

56. 发明授权

US08988143B2 Switchable current source circuit and method 有权
标题翻译：可切换电流源电路及方法
公开(公告)号：US08988143B2
公开(公告)日：2015-03-24
申请号：US14201581
申请日：2014-03-07
申请人： NXP B.V.
发明人： Marco Berkhout
IPC分类号： G05F1/10 , G05F3/02 , G05F3/26 , H03K17/042 , H03F3/00
CPC分类号： G05F3/02 , G05F3/262 , H03F3/00 , H03K17/04206
摘要： A switchable current source in which a reference voltage value to be used in driving the gate of an output transistor is sampled and stored. The reference voltage is derived using a reference current source which feeds a current sensing transistor. The current sensing transistor is turned off when the output transistor is turned off, so that the reference current source then does not consume power. A large reference current Iref can then be used for a short time.
摘要翻译：其中采样并存储用于驱动输出晶体管的栅极的参考电压值的可切换电流源。使用馈送电流感测晶体管的参考电流源导出参考电压。当输出晶体管截止时，电流检测晶体管截止，使得参考电流源不消耗功率。然后可以在短时间内使用大的参考电流Iref。

57. 发明授权

US08971792B2 Signal amplifiers that switch to an attenuated or alternate communications path in response to a power interruption 有权
标题翻译：响应于电源中断而切换到衰减或备用通信路径的信号放大器
公开(公告)号：US08971792B2
公开(公告)日：2015-03-03
申请号：US13761369
申请日：2013-02-07
申请人： CommScope, Inc. of North Carolina
发明人： Robert R. Riggsby , Shi Man Li , Ming Yao Lee
IPC分类号： H04H20/71 , H01Q11/12 , H04B1/04 , H04B1/16 , H03F3/00 , H03F3/195 , H03F3/72
CPC分类号： H04W24/04 , H03F1/02 , H03F3/00 , H03F3/19 , H03F3/195 , H03F3/72 , H03F2200/231 , H03F2200/451 , H04L5/08 , H04L5/1461 , H04W52/38 , H04W52/52
摘要： RF signal amplifiers are provided that include an RF input port, a switching device having an input that is coupled to the RF input port, a first output and a second output, a first diplexer having an input that is coupled to both the first output of the switching device and the second output of the switching device, and a first RF output port that is coupled to an output of the first diplexer. These amplifiers further include an attenuator that is coupled between the second output of the switching device and the input of the first diplexer.
摘要翻译：提供RF信号放大器，其包括RF输入端口，具有耦合到RF输入端口的输入的开关器件，第一输出端和第二输出端，第一双工器，其输入耦合到所述开关装置和所述开关装置的第二输出端以及耦合到所述第一双工器的输出端的第一RF输出端口。这些放大器还包括耦合在开关器件的第二输出端和第一双工器的输入端之间的衰减器。

58. 发明申请

US20140285263A1 Power Supply with Tickle Pulse Injection 有权
标题翻译：电源与脉冲脉冲注入
公开(公告)号：US20140285263A1
公开(公告)日：2014-09-25
申请号：US14300273
申请日：2014-06-10
申请人： Bose Corporation
发明人： Kenneth B. DelPapa , Michael Nussbaum , Andrew Ferencz
IPC分类号： H02M3/24 , H03F3/00 , H03F1/02
CPC分类号： H02M3/24 , H02M1/44 , H02M3/3387 , H02M2001/0032 , H03F1/0216 , H03F3/00 , H03F3/20 , Y02B70/16
摘要： A power supply injects a series of “tickle” pulses into a pulse width modulated (PWM) controller to induce the controller to generate PWM pulses at a minimum switching frequency, preferably one that is super-sonic (especially for audio applications). The switching frequency may also be selected or controlled such that it avoids resonances in the power supply. The “tickle” pulses may be clocked by the same clock that times the PWM controller, and they may be shaped to help ensure that the power supply maintains some regulation during low-load conditions.
摘要翻译：电源将脉冲宽度调制（PWM）控制器中的一系列“痒痒”脉冲引入到控制器中，以最小的开关频率产生PWM脉冲，最好是超声波（特别是音频应用）。还可以选择或控制开关频率，使得它避免了电源中的谐振。 “痒痒”脉冲可以与PWM控制器相同的时钟进行计时，并且它们的形状可以帮助确保电源在低负载条件下保持一些调节。

59. 发明授权

US08830709B2 Transmission-line resistance compression networks and related techniques 有权
标题翻译：传输线电阻压缩网络及相关技术
公开(公告)号：US08830709B2
公开(公告)日：2014-09-09
申请号：US13800221
申请日：2013-03-13
申请人： Eta Devices, Inc.
发明人： David J. Perreault
IPC分类号： H02J1/10 , H03H7/38 , H02M7/06 , H02M7/217 , H03F3/00
CPC分类号： H02M7/217 , H02M7/06 , H03F1/02 , H03F3/00 , H03F3/195 , H03F3/211 , H03F3/24 , H03F3/245 , H03F3/602 , H03F2200/06 , H03F2200/09 , H03F2200/192 , H03F2200/204 , H03F2200/462 , H03H7/38 , Y10T307/25
摘要： A resistance compression network to shape an input impedance at a port for transferring energy to multiple loads at a first frequency includes first and second transmission line segments having outputs for coupling to first and second loads and having different electrical lengths at a first frequency and a compression port coupled to inputs of both the first and the second transmission line segments. Over a set of operating conditions of interest, an equivalent resistance looking into the compression port at the frequency varies over a first resistance range as equivalent resistances of the first and second loads vary over a second resistance range and a range ratio associated with the first resistance range is less than a range ratio associated with the second resistance range and the range ratio of a subject range is a ratio of a largest resistance value in the subject range to a smallest resistance value in the subject range.
摘要翻译：在端口处形成输入阻抗以将能量传递到多个负载的电阻压缩网络以第一频率包括具有输出的第一和第二传输线段，其具有耦合到第一和第二负载并且在第一频率和压缩下具有不同的电长度端口耦合到第一和第二传输线段的输入。在一组感兴趣的操作条件下，在第一电阻范围内观察频率处的压缩端口的等效电阻在第一和第二负载的等效电阻在第二电阻范围和与第一电阻相关联的范围比中变化时变化范围小于与第二电阻范围相关联的范围比，并且被摄体范围的范围比是被摄体范围内的最大电阻值与被摄体范围内的最小电阻值的比。

60. 发明申请

US20130343107A1 Transmission-Line Resistance Compression Networks And Related Techniques 有权
标题翻译：传输线电阻压缩网络及相关技术
公开(公告)号：US20130343107A1
公开(公告)日：2013-12-26
申请号：US13800221
申请日：2013-03-13
申请人： ETA DEVICES, INC.
发明人： David J. Perreault
IPC分类号： H03H7/38
CPC分类号： H02M7/217 , H02M7/06 , H03F1/02 , H03F3/00 , H03F3/195 , H03F3/211 , H03F3/24 , H03F3/245 , H03F3/602 , H03F2200/06 , H03F2200/09 , H03F2200/192 , H03F2200/204 , H03F2200/462 , H03H7/38 , Y10T307/25
摘要： A resistance compression network uses transmission line sections having asymmetric lengths to compress the resistance range of multiple loads. In some embodiments, the characteristic impedance of the transmission line sections is related to the geometric mean of the load resistance range. The resistance compression network may be used within, for example, an energy recovery system or in any other application where a reduction in the resistance range of multiple loads is desired.
摘要翻译：电阻压缩网络使用具有不对称长度的传输线段来压缩多个负载的电阻范围。在一些实施例中，传输线段的特征阻抗与负载电阻范围的几何平均值有关。电阻压缩网络可以用在例如能量回收系统中或在需要减少多个负载的电阻范围的任何其它应用中。

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