专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

US20060028161A1 Motor driving apparatus and motor driving method 有权
标题翻译：电机驱动装置及电机驱动方式
公开(公告)号：US20060028161A1
公开(公告)日：2006-02-09
申请号：US11191853
申请日：2005-07-27
申请人： Yasunori Yamamoto , Hideaki Mori , Shinichi Kuroshima , Hideki Nishino , Taishi Iwanaga
发明人： Yasunori Yamamoto , Hideaki Mori , Shinichi Kuroshima , Hideki Nishino , Taishi Iwanaga
IPC分类号： H02P7/00
CPC分类号： H02P6/10 , H02P6/18 , H02P2209/07
摘要： A motor driving apparatus has a driver circuit configuration capable of individually adjusting three phase coil currents. Coil current waveforms are formed to have a total of three phase shaft direction forces to be zero in compliance with predetermined mathematical expressions, and thus, three phase coil current profiles can be made independent of one another, and vibration-causing factors attributed to the fact that a certain phase is in an non-energized state are corrected by adjusting the current profiles of the other phases. Consequently, the vibration and the noise can be reduced.
摘要翻译：电动机驱动装置具有能够分别调节三相线圈电流的驱动电路结构。线圈电流波形形成为具有符合预定数学表达式的总共三相轴方向力为零，因此可以使三相线圈电流分布彼此独立，并且由于事实引起的振动引起因素通过调整其它相的电流曲线来校正某一相位处于非通电状态。因此，可以降低振动和噪音。

2. 发明授权

US06979970B2 Sensorless motor driving device and its driving method 有权
标题翻译：无传感器电机驱动装置及其驱动方法
公开(公告)号：US06979970B2
公开(公告)日：2005-12-27
申请号：US10878442
申请日：2004-06-29
申请人： Taishi Iwanaga , Yasunori Yamamoto , Hideki Nishino
发明人： Taishi Iwanaga , Yasunori Yamamoto , Hideki Nishino
IPC分类号： H02P27/08 , H02P3/08 , H02P5/00 , H02P6/08 , H02P6/18 , H02P6/20 , H02P7/00
CPC分类号： H02P6/182
摘要： A PWM control section (1) gently changes phase currents (Iu, Iv, and Iw) under a current driving control over a pre-drive circuit (2) and an output circuit (3). The pre-drive circuit (2) suspends energizing of the specific motor coil (Mu, Mv, and Mw) according to a PWM disable signal (NPWM) at PWM disable periods. A self-commutation circuit (5) performs zero crossing detection according to a BEMF detection signal (DZC) during BEMF detection periods. A count section (7) selects either a self-commutation signal (SC) or a forced commutation signal (FC) as a commutation signal (CS), whichever enters earlier, and, based on its intervals, generates the PWM disable signal (NPWM) and the BEMF detection signal (DZC). The BEMF detection period starts after the start of the PWM disable period, and finishes together with the PWM disable period at the switching of the energization phases.
摘要翻译： PWM控制部分（1）在电流驱动控制下在预驱动电路（2）和输出电路（3）上轻轻地改变相电流（Iu，Iv和Iw）。在PWM禁止期间，预驱动电路（2）根据PWM禁止信号（NPWM）暂停特定电动机线圈的通电（Mu，Mv和Mw）。自整流电路（5）在BEMF检测期间根据BEMF检测信号（DZC）进行过零检测。计数部分（7）选择自换换信号（SC）或强制换向信号（FC）作为换向信号（CS），以较早者为准，并且基于其间隔产生PWM禁止信号（NPWM ）和BEMF检测信号（DZC）。 BEMF检测周期在PWM禁止周期开始后开始，并在通电阶段切换时与PWM禁止周期一起完成。

3. 发明授权

US06674258B2 Motor driver and motor drive method 有权
标题翻译：电机驱动和电机驱动方式
公开(公告)号：US06674258B2
公开(公告)日：2004-01-06
申请号：US10175059
申请日：2002-06-20
申请人： Hirofumi Sakai , Tomoharu Yokouchi , Yasunori Yamamoto , Masashi Inao , Taishi Iwanaga
发明人： Hirofumi Sakai , Tomoharu Yokouchi , Yasunori Yamamoto , Masashi Inao , Taishi Iwanaga
IPC分类号： G05B1128
CPC分类号： H02P6/10 , H02M7/5395 , H02M2001/0009 , H02P6/085 , H02P6/28
摘要： A motor driver having output circuits each including upper and lower side switching elements connected in series. The motor driver includes: a current detection resistance connected in series with the output circuits in common; a phase switch circuit for turning ON a switching element on one side of one of the output circuits for a time period corresponding to a predetermined electrical angle and switching switching elements on the other side of a plurality of output circuits among the remaining ones of the output circuits; and an ON-period control section for generating a signal for controlling the switching operation so that each of periods obtained by dividing the time period includes a first period in which a plurality of switching elements are turned ON and a second period in which one of the switching elements turned ON in the first period is kept ON.
摘要翻译：具有各自包括串联连接的上侧开关元件和下侧开关元件的输出电路的电机驱动器。电机驱动器包括：与输出电路串联连接的电流检测电阻; 一个相位切换电路，用于在输出电路中的一个输出电路的一侧上接通一个对应于预定电角度的时间段的开关元件，并且在剩余的输出电路中的多个输出电路的另一侧上切换开关元件电路; 以及导通周期控制部分，用于产生用于控制切换操作的信号，使得通过划分时间段获得的每个周期包括多个开关元件导通的第一周期和第二周期，其中，在第一周期中接通的开关元件保持ON。

4. 发明授权

US07088067B2 Motor driving apparatus and motor driving method 有权
公开(公告)号：US07088067B2
公开(公告)日：2006-08-08
申请号：US11191853
申请日：2005-07-27
申请人： Yasunori Yamamoto , Hideaki Mori , Shinichi Kuroshima , Hideki Nishino , Taishi Iwanaga
发明人： Yasunori Yamamoto , Hideaki Mori , Shinichi Kuroshima , Hideki Nishino , Taishi Iwanaga
IPC分类号： H02P7/00
CPC分类号： H02P6/10 , H02P6/18 , H02P2209/07
摘要： A motor driving apparatus has a driver circuit configuration capable of individually adjusting three phase coil currents. Coil current waveforms are formed to have a total of three phase shaft direction forces to be zero in compliance with predetermined mathematical expressions, and thus, three phase coil current profiles can be made independent of one another, and vibration-causing factors attributed to the fact that a certain phase is in an non-energized state are corrected by adjusting the current profiles of the other phases. Consequently, the vibration and the noise can be reduced.

5. 发明授权

US06873126B2 Motor drive method and motor driver 有权
标题翻译：电机驱动方式和电机驱动
公开(公告)号：US06873126B2
公开(公告)日：2005-03-29
申请号：US10608157
申请日：2003-06-30
申请人： Masashi Inao , Yasunori Yamamoto , Taishi Iwanaga , Tomoharu Yokouchi , Hirofumi Sakai
发明人： Masashi Inao , Yasunori Yamamoto , Taishi Iwanaga , Tomoharu Yokouchi , Hirofumi Sakai
IPC分类号： H02P6/00 , H02P6/14 , H02K23/00
CPC分类号： H02P6/14 , H02P6/28 , H02P2209/07
摘要： A motor drive method for a motor driver having output circuits each including upper and lower side switching elements connected in series, and a current detection resistance connected in series with the output circuits in common. The motor drive method includes the steps of: turning ON a switching element on one side of one of the output circuits for a time period corresponding to a predetermined electrical angle; and repeatedly switching switching elements on the other side of a plurality of output circuits among the remaining ones of the output circuits. In the switching step, each of a plurality of periods obtained by dividing the time period corresponding to the predetermined electrical angle includes a first period in which one of the switching elements to be switched is turned ON and a second period in which another one of the switching elements is turned ON.
摘要翻译：一种用于具有输出电路的电机驱动器的电机驱动方法，每个输出电路各自包括串联连接的上下开关元件和与输出电路串联连接的电流检测电阻。电动机驱动方法包括以下步骤：在一个输出电路的一侧上接通开关元件一段对应于预定电角度的时间段; 并且在其余输出电路中的多个输出电路的另一侧反复切换开关元件。在切换步骤中，通过划分对应于预定电角度的时间段而获得的多个周期中的每个周期包括第一周期，其中要切换的开关元件中的一个被接通，以及第二周期，其中，开关元件接通。

6. 发明授权

US06710569B2 Motor driving device and motor driving method 有权
标题翻译：电机驱动装置及电机驱动方式
公开(公告)号：US06710569B2
公开(公告)日：2004-03-23
申请号：US10367820
申请日：2003-02-19
申请人： Taishi Iwanaga , Yasunori Yamamoto
发明人： Taishi Iwanaga , Yasunori Yamamoto
IPC分类号： H02P308
CPC分类号： H02P6/14 , H02P6/10 , H02P2209/07
摘要： The present invention provides a motor driving device that produces a first PWM control signal and a second PWM control signal according respectively to different torque command signals for energizing motor coils of a plurality of phases with PWM control in parallel, wherein it is possible to avoid a situation where two-phase simultaneous energization continues for a long period of time. For this purpose, a PWM control section unconditionally turns OFF the first and second PWM control signals according to a first reset pulse signal and a second reset pulse signal, respectively, produced by an oscillation section. Thus, it is possible to avoid a situation where two phases are energized simultaneously for a long period of time, and to maintain the parallelism of the two phases being energized.
摘要翻译：本发明提供了一种电动机驱动装置，其分别根据不同的转矩指令信号产生第一PWM控制信号和第二PWM控制信号，用于通过并行的PWM控制来激励多相的电动机线圈，其中可以避免两相同时通电持续很长时间的情况。为此，PWM控制部根据由振荡部分产生的第一复位脉冲信号和第二复位脉冲信号无条件地关闭第一和第二PWM控制信号。因此，可以避免长时间同时通电两相，并保持两相并联通电的情况。

7. 发明授权

US06940239B2 Motor driving device and motor driving method 有权
标题翻译：电机驱动装置及电机驱动方式
公开(公告)号：US06940239B2
公开(公告)日：2005-09-06
申请号：US10307986
申请日：2002-12-03
申请人： Taishi Iwanaga , Yasunori Yamamoto
发明人： Taishi Iwanaga , Yasunori Yamamoto
IPC分类号： H02P6/08 , H02P5/00 , H02P7/00
CPC分类号： H02P6/085 , H02P2209/07
摘要： In a PWM-controlled motor driving device, a phase current is prevented from undergoing an abrupt transition at phase current switching points, thereby reducing vibrations and noise of the motor. A PWM control section produces two independent PWM control pulse signals P1 and P2. Two energized phases, which are determined by an energization switching section, are energized with PWM control in parallel according to the PWM control pulse signals P1 and P2. A comparison section compares a current detection signal DS, which indicates the level of the current flowing through a motor coil, with various torque command signals TQ1, TQ2 and TQ3, which are produced by a torque command signal generation section. A masking section masks comparison results CR1 and CR2 as necessary. Thus, an ON period of the PWM control pulse signal P1 and that of the PWM control pulse signal P2 are determined. In this way, phase current switching can be done smoothly with any torque from a low torque to a high torque, thereby preventing an abrupt phase current transition.
摘要翻译：在PWM控制的电动机驱动装置中，防止相电流在相电流切换点发生突然转变，从而减小电动机的振动和噪声。 PWM控制部分产生两个独立的PWM控制脉冲信号P 1和P 2。由通电切换部确定的两个通电相根据PWM控制脉冲信号P 1和P 2并行地通过PWM控制被通电。比较部分将表示流过电动机线圈的电流的电流检测信号DS与由转矩指令信号产生部产生的各种转矩指令信号TQ 1，TQ 2和TQ 3进行比较。屏蔽部分根据需要屏蔽比较结果CR 1和CR 2。因此，确定PWM控制脉冲信号P 1的导通期间和PWM控制脉冲信号P 2的导通期间。以这种方式，可以从低扭矩到高扭矩的任何转矩平滑地进行相电流切换，从而防止突然的相电流转变。

8. 发明授权

US06844769B2 Drive circuit 失效
标题翻译：驱动电路
公开(公告)号：US06844769B2
公开(公告)日：2005-01-18
申请号：US10366524
申请日：2003-02-14
申请人： Yasunori Yamamoto , Taishi Iwanaga
发明人： Yasunori Yamamoto , Taishi Iwanaga
IPC分类号： H03K17/06 , H03K17/10 , H03L5/00
CPC分类号： H03K19/00315 , H03K17/063 , H03K17/102
摘要： The amplitude expansion circuit as a main part of a drive circuit includes: a VM DC power supply line to which a voltage VM is applied; a VH DC power supply line to which a voltage VH roughly twice as high as the voltage VM is applied; an inverter circuit receiving a pulse signal oscillating between the ground voltage and the voltage VM; another inverter circuit receiving a pulse signal oscillating between the voltage VM and the voltage VH in correspondence with the oscillation of the voltage level of the above pulse signal; a p-channel MOSFET having a gate receiving an output from the inverter circuit; another p-channel MOSFET having a gate connected to the VM DC power supply line; an n-channel MOSFET having a gate connected to the VM DC power supply line; and another n-channel MOSFET having a gate receiving an output from the other inverter circuit. A common connection node of the p-channel MOSFET and the n-channel MOSFET works as the output terminal of the amplitude expansion circuit.
摘要翻译：作为驱动电路的主要部分的振幅扩大电路包括：施加电压VM的VM直流电源线; VH电压线，其电压VH大约是电压VM的两倍; 接收在接地电压和电压VM之间振荡的脉冲信号的逆变器电路; 另一个逆变器电路，与上述脉冲信号的电压电平的振荡相对应地接收在电压VM与电压VH之间振荡的脉冲信号; 具有接收来自反相器电路的输出的栅极的p沟道MOSFET; 具有连接到VM DC电源线的栅极的另一个p沟道MOSFET; 具有连接到VM DC电源线的栅极的n沟道MOSFET; 以及另一个n沟道MOSFET，其栅极接收来自另一个反相器电路的输出。 p沟道MOSFET和n沟道MOSFET的公共连接节点用作幅度扩展电路的输出端。

9. 发明申请

US20060214529A1 Three-phase DC brushless motor and winding method 有权
公开(公告)号：US20060214529A1
公开(公告)日：2006-09-28
申请号：US11385334
申请日：2006-03-21
申请人： Hideki Nishino , Kiyotaka Tanimoto , Taishi Iwanaga , Shinichi Kuroshima , Yoshiaki Igarashi
发明人： Hideki Nishino , Kiyotaka Tanimoto , Taishi Iwanaga , Shinichi Kuroshima , Yoshiaki Igarashi
IPC分类号： H02K3/00 , G05B11/28
CPC分类号： H02K3/28
摘要： A three-phase DC brushless motor and coil winding method provide a coil winding enabling consistent starting with PWM sensorless driving by suppressing the DC offset component of the induced voltage resulting from an imbalance in the motor coil windings. The method of winding the armature winding of the three-phase DC brushless motor renders the difference in mutual inductance substantially zero.

10. 发明申请

US20110285333A1 MOTOR DRIVE UNIT 审中-公开
标题翻译：电机驱动单元
公开(公告)号：US20110285333A1
公开(公告)日：2011-11-24
申请号：US13078639
申请日：2011-04-01
申请人： Yoshinao KOBAYASHI , Taishi Iwanaga
发明人： Yoshinao KOBAYASHI , Taishi Iwanaga
IPC分类号： H02P23/14
CPC分类号： H02P23/14
摘要： A motor drive unit includes a position detection section configured to detect a rotor position by detecting a zero cross of a counter electromotive voltage during a de-energizing period to output a position detection signal, a current waveform generation section configured to generate, based on a torque command signal and the position detection signal, a current waveform which is to flow through the motor and includes the de-energizing period, an energizing control section configured to generate a control signal for controlling energizing of each of motor coils, and perform switching of an energizing phase of the motor based on the position detection signal, and a drive section configured to supply a current to each of the motor coils according to the control by the energizing control section, and the current waveform generation section changes a start timing of the de-energizing period according to a given control signal.
摘要翻译：电动机驱动单元包括：位置检测部，被配置为通过在断电周期期间检测反电动势电压的零交叉来检测转子位置，以输出位置检测信号;电流波形生成部，被配置为基于转矩指令信号和位置检测信号，流过电动机的电流波形并包括断电周期;激励控制部，被配置为产生用于控制每个电动机线圈的通电的控制信号，并且执行切换基于位置检测信号的电动机的通电阶段;以及驱动部，其被配置为根据由所述通电控制部的控制向每个所述电动机线圈供给电流，并且所述电流波形生成部将所述电动机的起动定时根据给定的控制信号去激励周期。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式