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198 条记录 (耗时 0.019 秒)

    GATE DRIVE CIRCUIT
    1.
    发明授权
    GATE DRIVE CIRCUIT 有权

    公开(公告)号：EP3243275B1

    公开(公告)日：2018-10-17

    申请号：EP16700935.6

    申请日：2016-01-05

    申请人： Bose Corporation

    发明人： NUSSBAUM, Michael B. ,  CORIC, Zoran

    IPC分类号： H03F3/185 ,  H03K3/013 ,  H03K17/687 ,  H03F3/217 ,  H03F1/52 ,  H03F3/72

    CPC分类号： H03K17/687 ,  H03F1/52 ,  H03F3/185 ,  H03F3/2171 ,  H03F3/2173 ,  H03F3/2178 ,  H03F3/72 ,  H03F2200/03 ,  H03F2200/534 ,  H03K3/013

    摘要： Example circuitry includes: a transformer circuit having first windings and second windings, where the second windings are magnetically orthogonal to the first windings; first transistors to provide a first voltage to a load, where each of the first transistors is responsive to a first control signal that is based on a first signal through a first winding; second transistors to provide a second voltage to the load, where each of the second transistors is responsive to a second control signal that is based on the first through the first winding, and where the first and second control signals cause the first transistors to operate in a different switching state than the second transistors; and control circuitry responsive to signals received through the second windings to control the first transistors and the second transistors to operate in a same switching state.

    SWITCH CONTROL METHOD, SWITCH CONTROL CIRCUIT, REGULATOR AND STORAGE MEDIUM
    5.
    发明公开
    SWITCH CONTROL METHOD, SWITCH CONTROL CIRCUIT, REGULATOR AND STORAGE MEDIUM 审中-公开
    SCHALTSTEUERUNGSVERFAHREN，SCHALTSTEUERUNGSSCHALTUNG，REGLER UND SPEICHERMEDIUM

    公开(公告)号：EP3136575A1

    公开(公告)日：2017-03-01

    申请号：EP14889847.1

    申请日：2014-10-08

    申请人： Sanechips Technology Co., Ltd.

    发明人： WEI, Dong ,  GENG, Weisheng

    IPC分类号： H02M3/155

    CPC分类号： H03F3/2171 ,  H02M1/14 ,  H02M3/155 ,  H02M2001/0025 ,  H03F1/303 ,  H03F3/005 ,  H03F3/2178 ,  H03F2200/351 ,  H03F2200/78

    摘要： Disclosed is a switch control circuit, including an error amplifier, a compensation network and a control circuit, wherein the compensation network is connected to an output end of the error amplifier; and the control circuit includes switches from a first switch to a fifth switch and is configured to control operating states of the error amplifier and the compensation network by controlling on/off states of switches from the first switch to the fifth switch. Further disclosed are switch control method, a regulator including the above switch control circuit as well as a computer storage medium.

    摘要翻译： 公开了一种开关控制电路，包括误差放大器，补偿网络和控制电路，其中补偿网络连接到误差放大器的输出端; 并且控制电路包括从第一开关到第五开关的开关，并且被配置为通过控制从第一开关到第五开关的开关的接通/断开状态来控制误差放大器和补偿网络的操作状态。 还公开了开关控制方法，包括上述开关控制电路的调节器以及计算机存储介质。

    AUDIO AMPLIFIER USING MULTI-LEVEL PULSE WIDTH MODULATION
    6.
    发明公开
    AUDIO AMPLIFIER USING MULTI-LEVEL PULSE WIDTH MODULATION 有权
    AUDIOVERSTÄRKERMIT MEHRSTUFIGER PULSWEITENMODULATION

    公开(公告)号：EP3048724A1

    公开(公告)日：2016-07-27

    申请号：EP15199593.3

    申请日：2011-10-27

    申请人： Merus Audio ApS

    发明人： HØYERBY, Mikkel

    IPC分类号： 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。

    VERSATILE AUDIO POWER AMPLIFIER
    8.
    发明公开
    VERSATILE AUDIO POWER AMPLIFIER 有权
    多功能的音频功率放大器

    公开(公告)号：EP2543137A1

    公开(公告)日：2013-01-09

    申请号：EP11704163.2

    申请日：2011-02-11

    申请人： Bose Corporation

    发明人： NUSSBAUM, Michael ,  SHEEN, Timothy ,  PEARCE, Daniel S.

    IPC分类号： H03F3/217 ,  H03F3/68

    CPC分类号： H03F3/2171 ,  H03F1/0205 ,  H03F3/185 ,  H03F3/217 ,  H03F3/2173 ,  H03F3/2178 ,  H03F3/68 ,  H03F2200/03 ,  H03F2203/21

    摘要： An audio power amplifier includes a first and a second amplification unit, each including a switching voltage amplifier, an output filter, a current compensator, an inner current feedback loop feeding a measurement of current measured at the output inductor back to a summing input of the current compensator, a voltage compensator coupled to the summing input of the current compensator, and an outer voltage feedback loop. A controlled signal path provides the output of the voltage compensator of the first amplification unit to the current compensator of the second amplification unit. The first and second amplification units are operable with separate loads, in parallel driving a common load, or across a bridge-tied-load. A second pair of amplification units may be added and operated together with the first pair to drive a single speaker with a parallel pair of amplifiers on each side of a bridge-tied-load.

    A METHOD FOR VOLTAGE MODULATION
    9.
    发明授权
    A METHOD FOR VOLTAGE MODULATION 有权
    方法电压调制

    公开(公告)号：EP1872473B1

    公开(公告)日：2012-03-28

    申请号：EP06744530.4

    申请日：2006-04-20

    申请人： O.C.E.M. S.P.A.

    发明人： RINALDI, Luigi

    IPC分类号： H03F3/217 ,  H03F1/02

    CPC分类号： H03F1/0244 ,  H03F1/0205 ,  H03F3/2175 ,  H03F3/2178 ,  H03F2200/507 ,  H03F2200/78

    摘要： In a method for voltage modulation using a plurality of modules (2) connected in series and connected to a load (3) , the modules having supply sources (Aj) and switching means (Mj ) to connect or disconnect the supply sources so as to either decrease or increase, respectively, a voltage applied to the load (3), by a value equal to the voltage (Ej) supplied by the supply source, the switching means (Mj) are controlled by a central unit (1) , according to processing of at least one modulating signal (m) . The method provides for a balanced operation of the modules (2) and a considerable increase of the duty cycle frequency (fc) , keeping the same heat losses on each module, so that a smaller and less expensive low-pass filter can be set on the load (3) .