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公开(公告)号：US09179504B2
公开(公告)日：2015-11-03
申请号：US13062302
申请日：2010-07-30
申请人： Shun Kazama , Masaki Tagome , Makoto Kitabatake
发明人： Shun Kazama , Masaki Tagome , Makoto Kitabatake
摘要： To aim to reduce ripple current flowing through a capacitor in a power converter apparatus including a converter, the capacitor and an inverter. A current sensor 6 is connected between a capacitor 5 and an inverter circuit 7 for detecting current Iinv flowing from the capacitor 5 to the inverter circuit 7. A frequency detecting subunit 11 performs fast Fourier transform on a waveform of the current Iinv to detect a frequency of a frequency component having the largest amplitude. Also, the frequency detecting subunit 12 detects a zero-cross point of the frequency component having the largest amplitude. Then a carrier signal control subunit 13 performs control such that a frequency and a rise time of a PWM carrier signal for driving the converter circuit 4 match the frequency and the zero-cross point that have been detected by the frequency detecting subunit 11 and the phase detecting subunit 12.
摘要翻译： 旨在减少在包括转换器，电容器和逆变器的功率转换器装置中流过电容器的纹波电流。 电流传感器6连接在电容器5和逆变器电路7之间，用于检测从电容器5流向逆变器电路7的电流Iinv。频率检测子单元11对电流Iinv的波形执行快速傅里叶变换，以检测频率 具有最大振幅的频率分量。 此外，频率检测子单元12检测具有最大振幅的频率分量的零交叉点。 然后，载波信号控制子单元13执行控制，使得用于驱动转换器电路4的PWM载波信号的频率和上升时间与由频率检测子单元11检测到的频率和零交叉点相匹配， 检测子单元12。
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公开(公告)号：US08390165B2
公开(公告)日：2013-03-05
申请号：US12995143
申请日：2009-05-28
CPC分类号： H02K21/222 , H02K3/28 , H02K29/03
摘要： Provided is a synchronous motor including a rotor having magnetic poles distributed circumferentially along a rotation direction of the rotor at equal intervals, and a stator having stator teeth arranged circumferentially along the rotation direction of the rotor, each tooth wound with a stator coil by concentrated winding. Every M consecutive stator teeth belong to one of stator teeth groups arranged at equal intervals. The M consecutive stator teeth in each stator teeth group are arranged at intervals different from the intervals of the magnetic poles of the rotor. The stator coils wound around the M consecutive stator teeth are connected to separate terminals. A motor driver supplies currents of different phases to the stator coils via the respective terminals.
摘要翻译： 本发明提供一种同步电动机，其具有转子，该转子具有沿着转子的旋转方向等间隔地周向分布的磁极，定子具有沿着转子的旋转方向周向配置的定子齿，每个齿通过集中绕组卷绕定子线圈 。 每个M个连续的定子齿属于以等间隔布置的定子齿组之一。 每个定子齿组中的M个连续的定子齿以与转子的磁极间隔不同的间隔排列。 缠绕在M个连续的定子齿上的定子线圈连接到分离的端子。 电机驱动器通过各个端子向定子线圈提供不同相的电流。
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公开(公告)号：US08363440B2
公开(公告)日：2013-01-29
申请号：US12864856
申请日：2009-12-16
申请人： Masaki Tagome , Makoto Kitabatake , Shun Kazama
发明人： Masaki Tagome , Makoto Kitabatake , Shun Kazama
CPC分类号： H02M1/28
摘要： In a power conversion circuit operating with high frequency, an off-voltage control circuit 101u of a lower-arm gate drive circuit 24u controls the output voltage of a gate drive power supply 103u to change the output voltage to a voltage lower than a predetermined off voltage during a time period from termination of turn-off operation of a lower arm 22u until start of turn-on operation of an upper arm 21u, and thereafter return the output voltage to the predetermined off voltage immediately after termination of the turn-on operation of the upper arm 21u. With this control, short-circuiting through the upper and lower arms occurring due to a high voltage change dv/dt can be avoided, and the life of a switching element constituting the power conversion circuit improves, increasing the reliability of the power conversion circuit.
摘要翻译： 在以高频工作的电力转换电路中，下臂栅极驱动电路24u的截止电压控制电路101u控制栅极驱动电源103u的输出电压，将输出电压变更为低于预定的电压 在从下臂22u的关断动作结束到上臂21u的接通动作开始的期间的电压，然后在接通动作结束后立即将输出电压返回到规定的关闭电压 的上臂21u。 通过该控制，可以避免由于高电压变化dv / dt而产生的上臂和下臂的短路，并且构成功率转换电路的开关元件的寿命提高，从而提高了电力转换电路的可靠性。
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公开(公告)号：US20110260656A1
公开(公告)日：2011-10-27
申请号：US13133775
申请日：2010-11-18
申请人： Shun Kazama , Makoto Kitabatake , Masaki Tagome
发明人： Shun Kazama , Makoto Kitabatake , Masaki Tagome
CPC分类号： H02M7/53871 , B60L1/003 , B60L1/02 , B60L11/1803 , B60L15/08 , B60L2210/40 , B60L2220/14 , B60L2220/16 , B60L2220/46 , B60L2270/147 , H02M2001/008 , H02P27/08 , Y02T10/644 , Y02T10/645 , Y02T10/7005 , Y02T10/7241 , Y10T307/406
摘要： Provided is a small-sized load drive system which, even with three three-phase inverters, significantly reduces noise regardless of control duty ratio. The load drive system includes three-phase inverters 301 to 303, and first, second, and third control units 401 to 403. The inverters 301 to 303 are connected to loads 211 to 213, respectively. The first control unit 401 generates sawtooth wave voltage and controls the inverter 301 according to the sawtooth wave voltage. The second control unit 402 generates inverse sawtooth wave voltage and controls the inverter 302 according to the inverse sawtooth wave voltage. The third control unit 403 generates triangular wave voltage which has ramps respectively equal to the sawtooth/inverse sawtooth wave voltage and either has a same phase or is out of phase by half a period relative to the sawtooth/inverse sawtooth wave voltage, and also controls the inverter 303 according to the triangular wave voltage.
摘要翻译： 提供了一种小型负载驱动系统，即使使用三个三相逆变器，无论控制占空比如何，都能显着降低噪声。 负载驱动系统包括三相逆变器301至303以及第一，第二和第三控制单元401至403。反相器301至303分别连接到负载211至213。 第一控制单元401产生锯齿波电压，并根据锯齿波电压控制反相器301。 第二控制单元402产生反锯齿波电压，并根据反锯齿波电压控制逆变器302。 第三控制单元403产生三角波电压，该三角波电压具有分别等于锯齿波/反锯齿波电压的斜坡，并且相对于锯齿波/反锯齿波电压具有相同相位或相位相差一半的周期，并且还控制 逆变器303根据三角波电压。
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公开(公告)号：US20100301784A1
公开(公告)日：2010-12-02
申请号：US12864856
申请日：2009-12-16
申请人： Masaki Tagome , Makoto Kitabatake , Shun Kazama
发明人： Masaki Tagome , Makoto Kitabatake , Shun Kazama
IPC分类号： H02P1/02
CPC分类号： H02M1/28
摘要： In a power conversion circuit operating with high frequency, an off-voltage control circuit 101u of a lower-arm gate drive circuit 24u controls the output voltage of a gate drive power supply 103u to change the output voltage to a voltage lower than a predetermined off voltage during a time period from termination of turn-off operation of a lower arm 22u until start of turn-on operation of an upper arm 21u, and thereafter return the output voltage to the predetermined off voltage immediately after termination of the turn-on operation of the upper arm 21u. With this control, short-circuiting through the upper and lower arms occurring due to a high voltage change dv/dt can be avoided, and the life of a switching element constituting the power conversion circuit improves, increasing the reliability of the power conversion circuit.
摘要翻译： 在以高频工作的电力转换电路中，下臂栅极驱动电路24u的截止电压控制电路101u控制栅极驱动电源103u的输出电压，将输出电压变更为低于预定的电压 在从下臂22u的关断动作结束到上臂21u的接通动作开始的期间的电压，然后在接通动作结束后立即将输出电压返回到规定的关闭电压 的上臂21u。 通过该控制，可以避免由于高电压变化dv / dt而产生的上臂和下臂的短路，并且构成功率转换电路的开关元件的寿命提高，从而提高了电力转换电路的可靠性。
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公开(公告)号：US20110168697A1
公开(公告)日：2011-07-14
申请号：US13062302
申请日：2010-07-30
申请人： Shun Kazama , Masaki Tagome , Makoto Kitabatake
发明人： Shun Kazama , Masaki Tagome , Makoto Kitabatake
摘要： To aim to reduce ripple current flowing through a capacitor in a power converter apparatus including a converter, the capacitor and an inverter. A current sensor 6 is connected between a capacitor 5 and an inverter circuit 7 for detecting current Iinv flowing from the capacitor 5 to the inverter circuit 7. A frequency detecting subunit 11 performs fast Fourier transform on a waveform of the current Iinv to detect a frequency of a frequency component having the largest amplitude. Also, the frequency detecting subunit 12 detects a zero-cross point of the frequency component having the largest amplitude. Then a carrier signal control subunit 13 performs control such that a frequency and a rise time of a PWM carrier signal for driving the converter circuit 4 match the frequency and the zero-cross point that have been detected by the frequency detecting subunit 11 and the phase detecting subunit 12.
摘要翻译： 旨在减少在包括转换器，电容器和逆变器的功率转换器装置中流过电容器的纹波电流。 电流传感器6连接在电容器5和逆变器电路7之间，用于检测从电容器5流向逆变器电路7的电流Iinv。频率检测子单元11对电流Iinv的波形执行快速傅里叶变换，以检测频率 具有最大振幅的频率分量。 此外，频率检测子单元12检测具有最大振幅的频率分量的零交叉点。 然后，载波信号控制子单元13执行控制，使得用于驱动转换器电路4的PWM载波信号的频率和上升时间与由频率检测子单元11检测到的频率和零交叉点相匹配， 检测子单元12。
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7.发明授权Power converting apparatus suppressing switching noise by controlling switching operation 有权电力转换装置通过控制开关动作来抑制开关噪声公开(公告)号：US08885368B2
公开(公告)日：2014-11-11
申请号：US13641757
申请日：2011-06-17
申请人： Shun Kazama , Masaki Tagome , Makoto Kitabatake
发明人： Shun Kazama , Masaki Tagome , Makoto Kitabatake
IPC分类号： H02M1/12 , H02M7/5387 , H02M7/497 , H02M1/15 , H03K17/16
CPC分类号： H03K17/164 , H02M1/15 , H02M7/497 , H02M7/5387
摘要： A power converter for effectively reducing switching noise is provided. The power converter comprises a capacitor 111; switching devices Q11a and Q11b connected to the capacitor 111 in parallel; and a controller 105 that controls each switching device individually to perform switching operations. Each of the switching devices Q11a and Q11b forms a closed circuit together with the capacitor 111. The controller 105 controls the switching devices Q11a and Q11b to perform switching operations of switching ON or OFF at different timings such that at least two closed circuits including the switching devices Q11a and Q11b mutually cancel ringing voltages occurring therein, each ringing voltage occurring due to the switching operations performed by a corresponding switching device and having a frequency defined by an inductance of a corresponding closed circuit and an output capacity of a switching device included in the corresponding closed circuit.
摘要翻译： 提供了一种有效降低开关噪声的电源转换器。 功率转换器包括电容器111; 并联连接到电容器111的开关器件Q11a和Q11b; 以及控制器105，其分别控制各开关装置进行切换动作。 开关装置Q11a，Q11b与电容器111一起形成闭合电路。控制部105控制切换装置Q11a，Q11b，在不同的定时进行接通或断开的切换动作，使至少包含切换的2个闭合电路 设备Q11a和Q11b相互抵消其中发生的振铃电压，由于由相应的开关装置执行的开关操作而产生的振铃电压，并且具有由相应的闭合电路的电感和包括在其中的开关装置的输出容量定义的频率 相应闭路。
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公开(公告)号：US08680794B2
公开(公告)日：2014-03-25
申请号：US13133775
申请日：2010-11-18
申请人： Shun Kazama , Makoto Kitabatake , Masaki Tagome
发明人： Shun Kazama , Makoto Kitabatake , Masaki Tagome
IPC分类号： H02P5/68
CPC分类号： H02M7/53871 , B60L1/003 , B60L1/02 , B60L11/1803 , B60L15/08 , B60L2210/40 , B60L2220/14 , B60L2220/16 , B60L2220/46 , B60L2270/147 , H02M2001/008 , H02P27/08 , Y02T10/644 , Y02T10/645 , Y02T10/7005 , Y02T10/7241 , Y10T307/406
摘要： A small-sized load drive system which, even with three three-phase inverters, significantly reduces noise regardless of control duty ratio. The load drive system includes three-phase inverters, and first, second, and third control units. The inverters are connected to loads, respectively. The first control unit generates sawtooth wave voltage and controls the inverter according to the sawtooth wave voltage. The second control unit generates inverse sawtooth wave voltage and controls the inverter according to the inverse sawtooth wave voltage. The third control unit generates triangular wave voltage which has ramps respectively equal to the sawtooth/inverse sawtooth wave voltage and either has a same phase or is out of phase by half a period relative to the sawtooth/inverse sawtooth wave voltage, and also controls the inverter according to the triangular wave voltage.
摘要翻译： 即使使用三个三相逆变器，小型负载驱动系统也可以显着降低噪声，而不管控制占空比如何。 负载驱动系统包括三相逆变器以及第一，第二和第三控制单元。 逆变器分别连接到负载。 第一控制单元产生锯齿波电压，并根据锯齿波电压控制逆变器。 第二控制单元产生反锯齿波电压，并根据逆锯齿波电压控制逆变器。 第三控制单元产生三角波电压，其三角波电压分别等于锯齿波/反锯齿波电压，并且相对于锯齿波/反锯齿波电压具有相同相位或相位相差一半的周期，并且还控制 变频器根据三角波电压。
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公开(公告)号：US20130039100A1
公开(公告)日：2013-02-14
申请号：US13641757
申请日：2011-06-17
申请人： Shun Kazama , Masaki Tagome , Makoto Kitabatake
发明人： Shun Kazama , Masaki Tagome , Makoto Kitabatake
IPC分类号： H02M1/12
CPC分类号： H03K17/164 , H02M1/15 , H02M7/497 , H02M7/5387
摘要： A power converter for effectively reducing switching noise is provided. The power converter comprises a capacitor 111; switching devices Q11a and Q11b connected to the capacitor 111 in parallel; and a controller 105 that controls each switching device individually to perform switching operations. Each of the switching devices Q11a and Q11b forms a closed circuit together with the capacitor 111. The controller 105 controls the switching devices Q11a and Q11b to perform switching operations of switching ON or OFF at different timings such that at least two closed circuits including the switching devices Q11a and Q11b mutually cancel ringing voltages occurring therein, each ringing voltage occurring due to the switching operations performed by a corresponding switching device and having a frequency defined by an inductance of a corresponding closed circuit and an output capacity of a switching device included in the corresponding closed circuit.
摘要翻译： 提供了一种有效降低开关噪声的电源转换器。 功率转换器包括电容器111; 并联连接到电容器111的开关器件Q11a和Q11b; 以及控制器105，其分别控制各开关装置进行切换动作。 开关装置Q11a，Q11b与电容器111一起形成闭合电路。控制部105控制切换装置Q11a，Q11b，在不同的定时进行接通或断开的切换动作，使至少包含切换的2个闭合电路 设备Q11a和Q11b相互抵消其中发生的振铃电压，由于由相应的开关装置执行的开关操作而产生的振铃电压，并且具有由相应的闭合电路的电感和包括在其中的开关装置的输出容量定义的频率 相应闭路。
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公开(公告)号：US08519592B2
公开(公告)日：2013-08-27
申请号：US13054074
申请日：2009-07-27
CPC分类号： H02K29/03 , H02K3/28 , H02K21/222 , H02K2213/03
摘要： A synchronous electric motor includes rotor having a plurality of radially-oriented magnetic dipoles and a stator. Stator teeth group with a plurality of sets of stator teeth are arranged in the same position in terms of an electrical angle with another stator teeth group to provide rotational symmetry about an axis of the rotor. In each of the stator teeth groups a predetermined number of stator teeth are arranged at intervals different from intervals of the rotor magnetic dipoles. A main coil is wound about a predetermined number of stator teeth with a sub-coil further wound around one or more a teeth. Phase and magnitude of a resulting magnetic field is adjusted by the number of loops of the main coil and sub-coil. A given stator tooth can produce maximum torque despite any difference between an alignment of the stator tooth and an inter-polar interval of the stator.
摘要翻译： 同步电动机包括具有多个径向取向的磁偶极子和定子的转子。 具有多组定子齿的定子齿组以与另一个定子齿组的电角度相同的位置布置，以提供围绕转子的轴线的旋转对称。 在每个定子齿组中，以与转子磁偶极子的间隔不同的间隔布置预定数量的定子齿。 主线圈围绕预定数量的定子齿缠绕，子线圈进一步缠绕在一个或多个齿上。 所得到的磁场的相位和幅度通过主线圈和次线圈的回路数来调节。 给定的定子齿可以产生最大扭矩，尽管定子齿的对准和定子的极间间隔有任何差异。
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