-
公开(公告)号：US20160268986A1
公开(公告)日：2016-09-15
申请号：US15067550
申请日：2016-03-11
申请人： YAMAHA CORPORATION
发明人： Yohei OTANI , Masao NORO
IPC分类号： H03F5/00
CPC分类号： H03F5/00 , H03F1/3264 , H03F1/327 , H03F3/217 , H03F2200/549 , H04R3/00
摘要： A power amplifier includes a class-D amplifier and an input signal supplier. The class-D amplifier includes an input portion and a switching device. The switching device is switched according to an input signal that is input to the input portion so that a current is supplied to a load from a power source via the switching device. The input signal supplier supplies the input signal to the input portion of the class-D amplifier, calculates a virtual output voltage to be output from a virtual power source having a prescribed internal impedance characteristic when a current to flow through the load is output from the virtual power source, and adjust an amplitude of the input signal according to the virtual output voltage.
摘要翻译： 功率放大器包括D类放大器和输入信号供应器。 D类放大器包括输入部分和开关装置。 开关装置根据输入到输入部分的输入信号进行切换，使得电流经由开关装置从电源提供给负载。 输入信号供给器将输入信号提供给D类放大器的输入部分，当从该D型放大器输出的电流流过负载时，计算出从具有规定的内部阻抗特性的虚拟电源输出的虚拟输出电压 虚拟电源，并根据虚拟输出电压调整输入信号的幅度。
-
公开(公告)号：US20140219474A1
公开(公告)日：2014-08-07
申请号：US14174562
申请日：2014-02-06
IPC分类号： H03G3/00
摘要： An audio processing device comprises a multitude of electric input signals, each electric input signal being provided in a digitized form, and a control unit receiving said digitized electric input signals and providing a resulting enhanced signal. The control unit is configured to determine the resulting enhanced signal from said digitized electric input signals, or signals derived therefrom, according to a predefined scheme.
摘要翻译： 音频处理装置包括多个电输入信号，每个电输入信号以数字形式提供，以及控制单元接收所述数字化电输入信号并提供所产生的增强信号。 控制单元被配置为根据预定义的方案从所述数字化电输入信号或从其导出的信号确定所得到的增强信号。
-
公开(公告)号：US20130034249A1
公开(公告)日：2013-02-07
申请号：US13564310
申请日：2012-08-01
申请人： Bruce Keir
发明人： Bruce Keir
IPC分类号： H03F99/00
CPC分类号： H03F1/327 , G10H3/187 , H03F2200/549 , H03G5/025 , H03G5/165
摘要： A solid-state audio power amplifier providing an instantaneous maximum output voltage capability in excess of its long term power output capability, in which the input signal is supplied from analogue or digital signal processor. The signal processor is arranged to limit the long term power output of the solid-state amplifier in a non-linear amplitude and frequency dependant manner
摘要翻译： 一种固态音频功率放大器，其提供超过其长期功率输出能力的瞬时最大输出电压能力，其中输入信号由模拟或数字信号处理器提供。 信号处理器被布置成以非线性的幅度和频率依赖的方式来限制固态放大器的长期功率输出
-
公开(公告)号：US20090058530A1
公开(公告)日：2009-03-05
申请号：US11846923
申请日：2007-08-29
申请人： Mitchell E. Margolis
发明人： Mitchell E. Margolis
CPC分类号： H03F1/327 , H03F3/183 , H03F2200/03 , H03F2200/541 , H03F2200/549
摘要： The invention is a high-power transconductance circuit (HVTC) comprising three direct-coupled stages which can be substituted for a final-stage power-amplifying vacuum tube in an audio amplifier. The HVTC consists of an input stage, a driver stage, an output stage, and a power conditioner. The input to the HVTC is a composite signal consisting of an AC component and a DC component. The input stage conditions the input composite signal for input to the driver stage. The driver stage transforms the input composite signal into the driving signal for the output stage. The output stage utilizes one or more power transistors to drive a load. The power conditioner supplies regulated power to the HVTC. The input composite signal is direct-coupled through the input stage and the driver stage to the output stage.
摘要翻译： 本发明是一种高功率跨导电路（HVTC），其包括三个直接耦合级，其可替代音频放大器中的最后级功率放大真空管。 HVTC由输入级，驱动级，输出级和功率调节器组成。 HVTC的输入是由AC分量和DC分量组成的复合信号。 输入级将输入的复合信号输入到驱动级。 驱动级将输入复合信号转换为输出级的驱动信号。 输出级利用一个或多个功率晶体管驱动负载。 电源调节器为HVTC提供稳压电源。 输入复合信号通过输入级和驱动级直接耦合到输出级。
-
公开(公告)号：US07286060B2
公开(公告)日：2007-10-23
申请号：US11203077
申请日：2005-08-12
IPC分类号： G08B5/00
CPC分类号： G10H3/187 , G10H1/0008 , G10H2220/061 , H03F1/327 , H03F3/183 , H03F2200/03 , H03F2200/321 , H03F2200/462 , H03F2200/471 , H03F2200/549 , H03F2200/78
摘要： A vacuum tube replacement device includes an indicator. The indicator can be arranged to provide audible and/or visual indication of system performance, function, status, or any other desired indication. The vacuum tube replacement device is pin-for-pin compatible with standard vacuum tube circuit pin configurations. The replacement device may be a solid-state tube emulator device, a traditional glass envelope vacuum tube device, or some other hybrid device. The visual indicator is equally useful for non-vacuum tube replacement devices such as audio amplifier circuits.
摘要翻译： 真空管更换装置包括指示器。 指示器可以被布置成提供系统性能，功能，状态或任何其他期望指示的可听和/或可视指示。 真空管更换装置是针对引脚与标准真空管电路引脚配置兼容的。 更换装置可以是固态管仿真器装置，传统的玻璃管真空管装置或其他混合装置。 视觉指示器对于诸如音频放大器电路的非真空管替换装置同样有用。
-
公开(公告)号：US06507240B2
公开(公告)日：2003-01-14
申请号：US09780052
申请日：2001-02-09
申请人： Brent K. Butler
发明人： Brent K. Butler
IPC分类号： H03F500
CPC分类号： H03F1/327 , H03F3/3069
摘要： A musical amplifier that includes a vacuum tube and a transistor. The vacuum tube is connected to the gate of the transistor, so that the current flow through the transistor is controlled by the vacuum tube. According to one example of the invention, the vacuum tube-transistor arrangement is set up in a “push-pull” arrangement, where a vacuum tube-transistor combination controls positive voltages, and another vacuum tube-transistor combination controls the negative voltages delivered by the system, the system output being at approximately zero voltage when not under load. Also, the use of the “Edison effect,” referred to as “thermionic emission” from vacuum tubes to variably regulate output transistor bias current resulting in substantially reduced total harmonic distortion is also disclosed.
-
7.发明授权Solid state musical instrument amplifier with vacuum tube signal magnitude limiting 失效具有真空管信号幅度限制的固态乐器放大器
公开(公告)号：US5727069A
公开(公告)日：1998-03-10
申请号：US182848
申请日：1994-01-14
摘要： A musical instrument amplifier has all solid state amplification stages but incorporates a pair of vacuum tube signal magnitude limiters to provide vacuum tube type sound when the amplifier is operating in a nonlinear condition. The vacuum tubes are connected to have no supply potential so as to minimize microphonics and are each provided with a small amount of reverse bias to provide a desirable shape of the tube conduction curve and space charge suppression.
摘要翻译： 乐器放大器具有所有固态放大级，但并入一对真空管信号幅度限制器，以在放大器处于非线性状态时提供真空管型声音。 真空管被连接以不具有电源电位，以便最小化麦克风，并且各自提供少量反向偏压以提供管传导曲线和空间电荷抑制的期望形状。
-
8.发明授权Sound effector capable of imparting plural sound effects like distortion and other effects 失效能够赋予诸如失真和其他效果的多重声音效果的声音效果器
公开(公告)号：US5570424A
公开(公告)日：1996-10-29
申请号：US157625
申请日：1993-11-24
申请人： Toshinori Araya , Akio Suyama
发明人： Toshinori Araya , Akio Suyama
CPC分类号： H03F1/327 , G10H1/0091 , G10H1/16 , H03G5/10 , G10H2210/311 , G10H2250/205
摘要： A distortion effector includes a calculation section for performing a predetermined higher-degree expression calculation on an input digital sound signal, and a multiplication section that is provided in series with the calculation section for multiplying the digital sound signal by a coefficient that is adjusted so as to utilize a specific portion of the higher-degree expression which exhibits a smooth distortion characteristic. The digital sound signal is distorted in accordance with a smooth non-linear curve based on the higher-degree expression calculation, to thereby achieve a mild distortion effect. In a multi-effector capable of imparting three or more predetermined effects in such a manner that the effects can be selected to be imparted independently of each other, a registration device is provided for registering, for each of the effects, whether the effect should be made switchable or not. When a collective-switching switch is operated, control is performed such that the effect-on or effect-off state is inversively switched for any effect registered as switchable. For any effect registered as non-switchable by the registration device, the effect-on or effect-off state is not switched even when the collective-switching switch is operated.
摘要翻译： 失真执行器包括用于对输入数字声音信号执行预定的较高程度表达式计算的计算部分和与计算部分串联设置的乘法部分，用于将数字声音信号乘以被调整为如下的系数： 以利用具有平滑失真特性的较高程度表达式的特定部分。 基于较高程度的表达式计算，数字声音信号根据平滑的非线性曲线失真，从而实现轻微的失真效应。 在能够赋予彼此独立的效果的赋予三种以上的预定效果的多效应器中，提供了一种登记装置，用于对于每种效果来记录效果是否应当 是否可切换。 当集体切换开关被操作时，执行控制，使得效果或效果关闭状态被反转地切换以注册为可切换的任何效果。 对于由注册装置注册为不可切换的任何效果，即使在集体切换开关被操作时，效果关闭或关闭状态也不会切换。
-
公开(公告)号：US5321325A
公开(公告)日：1994-06-14
申请号：US85731
申请日：1993-07-06
申请人： Kenneth J. Lannes
发明人： Kenneth J. Lannes
CPC分类号： H03F1/3217 , H03F1/327
摘要： The invention relates to a modified electronic amplifier of the push/pull configuration. The difference being that only one signal (as apposed to two signals 180 degrees out of phase) is needed to drive the amplifier, the distortion in the nonlinear region is asymmetrical, and a feedback signal is used which automatically compensates for differences between the two active elements (tubes or transistors) that comprise the push/pull amplifier.
摘要翻译： 本发明涉及推/拉配置的改进的电子放大器。 不同之处在于驱动放大器只需要一个信号（如同两个信号180度相位相差180度），非线性区域的失真是不对称的，并且使用一个反馈信号来自动补偿两个主动之间的差异 包括推/拉放大器的元件（管或晶体管）。
-
公开(公告)号：US5127059A
公开(公告)日：1992-06-30
申请号：US467735
申请日：1990-01-18
摘要： A pre-amplifier for musical instrument audio signals which utilizes a solid state programmable logic device to control a plurality of solid state switches for routing the audio signals in preselected manner through successive stages of vacuum tube amplification.
摘要翻译： 用于乐器音频信号的前置放大器，其利用固态可编程逻辑器件来控制多个固态开关，用于以预选的方式通过连续的真空管放大级路由音频信号。
-
-
-
-
-
-
-
-
-
搜索结果
81 条记录 (耗时 0.034 秒)
