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1. 发明申请

US20110019442A1 POWER CONVERTER 有权
标题翻译：电源转换器
公开(公告)号：US20110019442A1
公开(公告)日：2011-01-27
申请号：US12839590
申请日：2010-07-20
申请人： Yoichiro YAMADA , Shuji KATOH , Shigenori INOUE
发明人： Yoichiro YAMADA , Shuji KATOH , Shigenori INOUE
IPC分类号： H02M7/04
CPC分类号： H02M7/219 , H02M1/14 , H02M7/483 , H02M7/5395 , H02M2001/0006 , H02M2007/4835
摘要： The noise generated from a power converter is suppressed by increasing the noise frequency to a level not lower than the maximum frequency of the human audible range. To obtain the frequency of an output current harmonic component as a noise source which has exceeded the maximum frequency of the human audible range, it is adequate to determine that the frequency of a driving carrier wave for the individual converter cells in the power converter, in which the phases of the carrier wave for the converter cells are mutually shifted by a given value between the converter cells, meets the following equation. fcarrier≧faudibility—max÷N
摘要翻译：通过将噪声频率增加到不低于人类可听范围的最大频率的水平来抑制从功率转换器产生的噪声。为了获得输出电流谐波分量的频率作为已经超出人类可听范围的最大频率的噪声源，足以确定功率转换器中各个转换器单元的驱动载波的频率，其中转换器单元的载波的相位在转换器单元之间相互偏移给定值，满足以下等式。 fcarrier≧faudibility-max÷N

2. 发明授权

US4079333A Audio amplifier 失效
标题翻译：音频放大器
公开(公告)号：US4079333A
公开(公告)日：1978-03-14
申请号：US758758
申请日：1977-01-12
申请人： Yoichiro Yamada
发明人： Yoichiro Yamada
IPC分类号： H03F3/181 , H03F3/68 , H04S1/00
CPC分类号： H03F3/68
摘要： An audio amplifier which processes mainly dynamic signals and which is provided with a plurality of amplifying systems each having a preamplifier and a main amplifier. A plurality of power sources are used to separately supply electric power to the respective amplifying systems, resulting in elimination of transient crosstalk.
摘要翻译：一种主要处理动态信号的音频放大器，其具有多个具有前置放大器和主放大器的放大系统。使用多个电源来分别向相应的放大系统供电，从而消除了瞬时串扰。

3. 发明授权

US5289116A Apparatus and method for testing electronic devices 失效
标题翻译：用于测试电子设备的装置和方法
公开(公告)号：US5289116A
公开(公告)日：1994-02-22
申请号：US952469
申请日：1992-09-28
申请人： Jun Kurita , Kiyoyasu Hiwada , Nobuyuki Kasuga , Yoichiro Yamada , Shigeru Kuwano , Keita Gunji , Tomoya Yamazaki
发明人： Jun Kurita , Kiyoyasu Hiwada , Nobuyuki Kasuga , Yoichiro Yamada , Shigeru Kuwano , Keita Gunji , Tomoya Yamazaki
IPC分类号： G01R31/3167 , G01R31/319 , G01R31/3193 , G01R31/28
CPC分类号： G01R31/3167 , G01R31/31922 , G01R31/3193
摘要： An apparatus 1 for testing mixed signal electronic devices (i.e., devices, such as LSI devices, whose input/output signals include direct current signals, digital signals and analog signals, where the time relationship between the various input and output signals may be either synchronous or asynchronous) includes a master clock subsystem (MCLK-SS) 11, a subsystem group comprised of a digital master subsystem (DM-SS) 12, a digital slave subsystem (DS-SS) 13, a waveform generator subsystem (WG-SS) 14, a waveform digitizer subsystem (WD-SS) 15, a time measuring module (TMM) 16, and a direct current subsystem (DC-SS) 17, and an interfacing test head 18. The MCLK-SS 11 receives a master clock from a timing generator 21 or DSP 23 of the device under test (DUT) 186 and generates a first master clock MCLK1 and a second master clock MCLK2, each of which is synchronized with the master clock from the DUT. A reference clock generator 111, which receives the output of the buffer 181, supplies a standard clock to the first and second clock generators 112, 113, which in turn generate the first and second master clock signals.
摘要翻译：一种用于测试混合信号电子装置（即诸如LSI装置的装置，其输入/输出信号包括直流信号，数字信号和模拟信号的装置1），其中各种输入和输出信号之间的时间关系可以是同步的或异步）包括主时钟子系统（MCLK-SS）11，由数字主子系统（DM-SS）12，数字从属子系统（DS-SS）13，波形发生器子系统（WG-SS））14，波形数字化器子系统（WD-SS）15，时间测量模块（TMM）16和直流子系统（DC-SS）17以及接口测试头18.MCLK-SS11接收主机来自被测器件（DUT）186的定时发生器21或DSP 23的时钟，并且产生第一主时钟MCLK1和第二主时钟MCLK2，其中每一个与来自DUT的主时钟同步。接收缓冲器181的输出的参考时钟发生器111将标准时钟提供给第一和第二时钟发生器112,113，第一和第二时钟发生器112,113又产生第一和第二主时钟信号。

4. 发明授权

US08711586B2 Power converter and method including noise suppression by controlling phase shifting of converter cells 有权
标题翻译：功率转换器和方法包括通过控制转换器单元的相移来抑制噪声
公开(公告)号：US08711586B2
公开(公告)日：2014-04-29
申请号：US12839590
申请日：2010-07-20
申请人： Yoichiro Yamada , Shuji Katoh , Shigenori Inoue
发明人： Yoichiro Yamada , Shuji Katoh , Shigenori Inoue
IPC分类号： H02M7/49 , H02M1/12
CPC分类号： H02M7/219 , H02M1/14 , H02M7/483 , H02M7/5395 , H02M2001/0006 , H02M2007/4835
摘要： The noise generated from a power converter is suppressed by increasing the noise frequency to a level not lower than the maximum frequency of the human audible range. To obtain the frequency of an output current harmonic component as a noise source which has exceeded the maximum frequency of the human audible range, it is adequate to determine that the frequency of a driving carrier wave for the individual converter cells in the power converter, in which the phases of the carrier wave for the converter cells are mutually shifted by a given value between the converter cells, meets the following equation.
摘要翻译：通过将噪声频率增加到不低于人类可听范围的最大频率的水平来抑制从功率转换器产生的噪声。为了获得输出电流谐波分量的频率作为已经超出人类可听范围的最大频率的噪声源，足以确定功率转换器中各个转换器单元的驱动载波的频率，其中转换器单元的载波的相位在转换器单元之间相互偏移给定值，满足以下等式。

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