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    • 1. 发明申请
    • Power Supply Control Circuit
    • 电源控制电路
    • US20090002074A1
    • 2009-01-01
    • US11658698
    • 2005-07-27
    • Hideaki KushidaHiroshi SaitoHiroyasu Nakano
    • Hideaki KushidaHiroshi SaitoHiroyasu Nakano
    • H03F1/00H03F3/217
    • H03F3/3016H02M2001/0045H03F3/217
    • The present invention is to provide a power supply control circuit that can effectively eliminate voltage distortion of an input signal during signal amplification. A power supply control circuit which controls a power supply voltage of a direct-current power source at a constant level and supplies the power supply voltage to an amplification circuit performing a differential operation alternately in accordance with a signal level of an input signal includes: a first transistor whose collector is connected to the direct-current power source and emitter is connected to the amplification circuit, for outputting a current; an error amplifier whose output port is connected to a base of the first transistor, for performing feedback control to hold a difference between a predetermined reference potential and a potential at the emitter of the first transistor at a constant level; and a second transistor whose emitter and base are mutually connected to the first transistor and collector is grounded, for absorbing a current.
    • 本发明是提供一种电源控制电路,其可以有效地消除信号放大期间输入信号的电压失真。 控制直流电源的电源电压为恒定电平的电源控制电路,并且根据输入信号的信号电平交替地对执行差分运算的放大电路供给电源电压,包括:a 第一晶体管的集电极连接到直流电源,发射极连接到放大电路,用于输出电流; 误差放大器,其输出端口连接到所述第一晶体管的基极,用于执行反馈控制以将所述第一晶体管的预定参考电位和所述电位之间的差保持在恒定电平; 以及第二晶体管,其发射极和基极相互连接到第一晶体管和集电极接地,用于吸收电流。
    • 2. 发明申请
    • Audio signal amplifying apparatus and distortion correcting method
    • 音频信号放大装置和失真校正方法
    • US20060222183A1
    • 2006-10-05
    • US11377258
    • 2006-03-17
    • Hideaki KushidaHiroshi Saito
    • Hideaki KushidaHiroshi Saito
    • H03G3/00
    • H04R3/002
    • As an embodiment of the present invention, an audio signal is amplified by a power amplifier and an amplified audio signal is generated. By a current detection resistance and a differential amplifier provided between the power amplifier and a speaker, when the amplified audio signal is supplied to the speaker as an output audio signal, the current waveforms of the amplified audio signal on which a distortion component was superimposed by the effect of the speaker and the output audio signal are detected as a current detection signal. A distortion component signal is calculated based on the difference between the current detection signal and the audio signal. And an added result by that the distortion component signal was added to the audio signal by a distortion component adder is supplied to the power amplifier.
    • 作为本发明的一个实施例,音频信号被功率放大器放大并产生放大的音频信号。 通过设置在功率放大器和扬声器之间的电流检测电阻和差分放大器,当放大的音频信号作为输出音频信号提供给扬声器时,放大的音频信号的电流波形在其上叠加有失真分量 扬声器和输出音频信号的效果被检测为电流检测信号。 基于电流检测信号和音频信号之间的差来计算失真分量信号。 并且通过失真分量加法器将失真分量信号添加到音频信号的附加结果被提供给功率放大器。
    • 7. 发明授权
    • Cell balance device and battery system
    • 电池平衡装置和电池系统
    • US09000726B2
    • 2015-04-07
    • US13571572
    • 2012-08-10
    • Atsushi SakuraiHiroshi Saito
    • Atsushi SakuraiHiroshi Saito
    • H02J7/00
    • H02J7/0019H02J7/0016H02J7/0026H02J2007/0039
    • Provided are a cell balance device for protecting a switch circuit from an overcurrent flow. The cell balance device includes: a plurality of electric accumulator connection terminals each connected to one of a node and two terminals of electric accumulators connected in series; a voltage hold device connection terminal connected to a voltage hold device; a plurality of first switch circuits provided between the plurality of electric accumulator connection terminals and the voltage hold device; a control circuit for controlling ON/OFF of the plurality of first switch circuits based on a synchronization signal; and an overcurrent detection circuit for detecting an overcurrent flowing through each of the plurality of first switch circuits.
    • 提供了用于保护开关电路免受过电流的电池平衡装置。 电池平衡装置包括:多个蓄电池连接端子,每个连接到串联连接的蓄电池的节点和两个端子中的一个; 连接到电压保持装置的电压保持装置连接端子; 设置在所述多个蓄电器连接端子与所述电压保持装置之间的多个第一开关电路; 控制电路,用于基于同步信号控制多个第一开关电路的ON / OFF; 以及过电流检测电路,用于检测流过多个第一开关电路中的每一个的过电流。
    • 10. 发明授权
    • Battery state monitoring circuit and battery device
    • 电池状态监测电路和电池装置
    • US08941360B2
    • 2015-01-27
    • US13092602
    • 2011-04-22
    • Hiroshi SaitoKazuaki Sano
    • Hiroshi SaitoKazuaki Sano
    • H02J7/00G01N27/416H01M10/48G01R31/36
    • H02J7/0016G01R31/3658H01M10/482H02J7/0026
    • Provided are a battery state monitoring circuit and a battery device, in which, even when one secondary battery becomes an overcharged state or an overdischarged state and then a voltage detection circuit operates, power is not consumed in only the one secondary battery. The battery state monitoring circuit includes: a plurality of voltage detection circuits which are provided for a plurality of secondary batteries, respectively, for detecting voltages of the plurality of secondary batteries; and a current bypass circuit provided in each of the plurality of voltage detection circuits, for allowing an operation current of the each of the plurality of voltage detection circuits to flow into a ground terminal. Therefore, when only one secondary battery becomes an overcharged state or an overdischarged state, the battery device operates so that the power of all the secondary batteries is consumed to prevent voltages between the secondary batteries from being unbalanced.
    • 提供一种电池状态监视电路和电池装置,其中即使一个二次电池变得过充电状态或过放电状态,然后电压检测电路工作,仅在一个二次电池中不消耗电力。 电池状态监视电路包括:多个电压检测电路,分别为多个二次电池提供,用于检测多个二次电池的电压; 以及设置在所述多个电压检测电路中的每一个中的电流旁路电路,用于允许所述多个电压检测电路中的每一个的操作电流流入接地端子。 因此,当只有一个二次电池变为过充电状态或过放电状态时,电池装置工作,以便消耗所有二次电池的电力,以防止二次电池之间的电压不平衡。