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1. 发明专利

JP2012114986A Motor driver and vehicle using the same 有权
标题翻译：使用它的电机驱动器和车辆
公开(公告)号：JP2012114986A
公开(公告)日：2012-06-14
申请号：JP2010259771
申请日：2010-11-22
申请人： Rohm Co Ltd , ローム株式会社
发明人： YAMATO TETSURO , FUJIMURA TAKASHI
IPC分类号： H02P23/00
CPC分类号： H02P6/085 , H02P29/032
摘要： PROBLEM TO BE SOLVED: To provide a motor driver capable of selecting whether to stop a motor or rotate the motor at a full speed when an input signal of the motor driver is abnormal, and to provide a vehicle using the same.SOLUTION: The motor driver includes a controller 103 for variably controlling a torque or a rotational speed of a motor based on control signals VTH, PWM and an output mode selection circuit 108b for transmitting instructions s1, s2 to the controller so as to place the motor in an operating state corresponding to a selection signal MODESEL when the control signal is abnormal.
摘要翻译：要解决的问题：提供一种电动机驱动器，其能够在电动机驱动器的输入信号异常时能够选择是否停止电动机或全速旋转电动机，并提供使用该电动机的车辆。电动机驱动器包括：控制器103，用于基于控制信号VTH，PWM和用于将指令s1，s2发送到控制器的输出模式选择电路108b可变地控制电动机的转矩或转速，以便当控制信号异常时，将电机置于与选择信号MODESEL对应的运行状态。版权所有（C）2012，JPO＆INPIT

2. 发明专利

JP2010205370A Optical pickup drive circuit, and optical disk device using the same 审中-公开
标题翻译：光拾取驱动电路和使用该光盘的光盘装置
公开(公告)号：JP2010205370A
公开(公告)日：2010-09-16
申请号：JP2009052679
申请日：2009-03-05
申请人： Rohm Co Ltd , ローム株式会社
发明人： KANEMITSU RYOSUKE , FUJIMURA TAKASHI
IPC分类号： G11B7/09
摘要： PROBLEM TO BE SOLVED: To provide an optical disk device in which fast drive of an optical pickup is performed even after a protection function is operated.
SOLUTION: This device is provided with: a comparing part 800 comparing input voltage generated based on a focus detection signal output from an optical pickup 4 with the reference voltage and outputting the compared result; a voltage selecting part 700 selecting any one of the input voltage or the reference voltage based on the compared result and outputting it; and a drive current generating part 9 generating a drive current driving the optical pickup 4, based on the voltage output from the voltage selecting part 700.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：解决的问题：提供即使在保护功能被操作之后也执行光学拾取器的快速驱动的光盘装置。解决方案：该装置具有：比较部分800，其将基于从光学拾取器4输出的焦点检测信号产生的输入电压与参考电压进行比较，并输出比较结果; 电压选择部700基于比较结果选择输入电压或参考电压中的任一个，并输出; 以及驱动电流产生部分9，其基于从电压选择部分700输出的电压产生驱动光学拾取器4的驱动电流。（C）2010，JPO＆INPIT

3. 发明专利

JP2014087210A Motor drive apparatus, electronic apparatus, and vehicle 有权
标题翻译：电动驱动装置，电子装置和车辆
公开(公告)号：JP2014087210A
公开(公告)日：2014-05-12
申请号：JP2012235808
申请日：2012-10-25
申请人： Rohm Co Ltd , ローム株式会社
发明人： FUJIMURA TAKASHI , YUKI HIROFUMI
IPC分类号： H02P6/18
CPC分类号： H02P6/18 , H02P6/182 , H02P6/187
摘要： PROBLEM TO BE SOLVED: To achieve an inexpensive and high-precision motor drive apparatus.SOLUTION: A motor drive apparatus 10 comprises: a driver 1 supplied with a power supply voltage Vcc and applying a plurality of phase-voltages U, V, W to a motor 20; a divided phase-voltage generator 2 for dividing the plurality of phase-voltages U, V, W in order to generate a plurality of divided phase-voltages VU, VV, VW; a neutral-point-voltage generator 3 for synthesizing and dividing the plurality of phase-voltages U, V, W so as to generate a neutral-point-voltage Vref; a selector 4 for selecting any one of the plurality of divided phase-voltages VU, VV, VW so as to output the one as a selected divide phase-voltage Vs; a comparator 5 for comparing the selected divided phase-voltage Vs with the neutral-point-voltage Vref so as to generate a comparison signal S1; and a controller 6 for generating, in accordance with the comparison signal S1, a selection control signal S2 of the selector 4 and an energization control signal S3 of the driver 1.
摘要翻译：要解决的问题：实现廉价和高精度的电动机驱动装置。解决方案：电动机驱动装置10包括：驱动器1，其被提供有电源电压Vcc并将多个相电压U，V，W施加到马达20; 用于分割多个相电压U，V，W的分压相电压发生器2，以便产生多个分压相电压VU，VV，VW; 中性点电压发生器3，用于合成和分割多个相电压U，V，W以产生中性点电压Vref; 选择器4，用于选择多个分压相电压VU，VV，VW中的任何一个，以输出一个作为选择的除相电压Vs; 比较器5，用于将所选择的分压相电压Vs与中性点电压Vref进行比较，以产生比较信号S1; 以及根据比较信号S1产生选择器4的选择控制信号S2和驱动器1的通电控制信号S3的控制器6。

4. 发明专利

JP2012222869A Motor drive device and motor device using the same 有权
标题翻译：电机驱动装置和使用该装置的电动装置
公开(公告)号：JP2012222869A
公开(公告)日：2012-11-12
申请号：JP2011083288
申请日：2011-04-05
申请人： Rohm Co Ltd , ローム株式会社
发明人： YAMATO TETSURO , FUJIMURA TAKASHI
IPC分类号： H02P6/16
CPC分类号： H02P6/08 , H02P6/10 , H02P6/16
摘要： PROBLEM TO BE SOLVED: To provide a motor drive device and a motor device using it, capable of performing automatic gain control of a rotor position detection signal without causing degradation in power efficiency nor degradation in S/N.SOLUTION: The motor drive device 1 includes an automatic gain control circuit 20 on a signal path through which a rotor position detection signal (hall voltage signals HU+/HU-, HV+/HV-, and HW+/HW-) is transmitted. The automatic gain control circuit 20 includes an amplifier 21 which differentially amplifies an input signal (advance angle hall current signals AU+/AU-, AV+/AV-, and AW+/AW-) to generate an output signal (amplified hall current signals IU, IV, and IW), and a feedback control part 23 which monitors the output signal (monitor current signals IUm, IVm, and IWm) to determine a gain of the amplifier 21.
摘要翻译：要解决的问题：为了提供使用它的电动机驱动装置和电动机装置，能够进行转子位置检测信号的自动增益控制，而不会导致功率效率的降低或S / N的降低。解决方案：电机驱动装置1包括在信号路径上的自动增益控制电路20，通过该自动增益控制电路转发位置检测信号（霍尔电压信号HU + / HU-，HV + / HV-和HW + / HW-）。自动增益控制电路20包括放大器21，差分放大输入信号（提前角霍尔电流信号AU + / AU-，AV + / AV-和AW + / AW-），以产生输出信号（放大的霍尔电流信号IU， IV和IW）和反馈控制部分23，其监视输出信号（监视电流信号IUm，IVm和IWm）以确定放大器21的增益。（C）2013年，JPO和INPIT

5. 发明专利

JP2005278393A Phase adjustment circuit, motor drive control circuit, and motor arrangement 有权
标题翻译：相位调整电路，电机驱动控制电路和电机布置
公开(公告)号：JP2005278393A
公开(公告)日：2005-10-06
申请号：JP2005050628
申请日：2005-02-25
申请人： Rohm Co Ltd , ローム株式会社
发明人： FUJIMURA TAKASHI
IPC分类号： H02P6/14
摘要： PROBLEM TO BE SOLVED: To provide the motor arrangement by compensating its delaying and driving a motor in the optimum timing, so as to improve efficiency in the wider range of a rotation and noiseless performance. SOLUTION: A motor drive control circuit 2 of this motor arrangement 1 is provided with a phase adjustment circuit 20 inputting the signal of U/V/W phase output from a rotational position signal amplifier 10, 11, 12 to adjust the phase in a manner as advanced by ratio α in accordance with phase adjustment voltage VDEG + , VDEG - relating to the respective signal, an automatic gain control circuit 13 inputting the output signal with this gain feedback controlled by a drive current in the armature coil of a motor, an FG circuit 21 generating a periodic pulse train from a rotational position signal, and a frequency voltage conversion circuit 22 converting the frequency into voltage corresponding to the frequency of this pulse train to output this voltage as the phase adjustment voltage. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：通过在最佳定时中补偿其延迟和驱动电动机来提供电动机布置，以便在更宽的旋转和无噪声性能范围内提高效率。解决方案：该电动机装置1的电动机驱动控制电路2设置有相位调整电路20，输入从旋转位置信号放大器10,11,12的U / V / W相输出的信号，以调整相位以与相应信号相关的相位调整电压VDEG + ，VDEG - 的比率α提前的方式，自动增益控制电路13输入输出信号由马达的电枢线圈中的驱动电流控制的增益反馈，从旋转位置信号产生周期脉冲串的FG电路21以及频率转换电路22将频率转换成与该脉冲的频率相对应的电压列车输出该电压作为相位调整电压。版权所有（C）2006，JPO＆NCIPI

6. 发明专利

JP2006197680A Actuator drive circuit 有权
标题翻译：执行器驱动电路
公开(公告)号：JP2006197680A
公开(公告)日：2006-07-27
申请号：JP2005004707
申请日：2005-01-12
申请人： Rohm Co Ltd , ローム株式会社
发明人： FUJIMURA TAKASHI
IPC分类号： H02P8/12
摘要： PROBLEM TO BE SOLVED: To provide a drive circuit performing current drive of an actuator and suitable for fabricating an IC in which an external capacitor is eliminated and high speed driving can be realized. SOLUTION: The actuator drive circuit comprises an integration circuit receiving a first current dependent on an input signal, a circuit for generating a PWM pulse depending on a voltage integrated by the integration circuit, and a circuit delivering a second current for charging or discharging an integration capacitor depending on the output voltage from a drive circuit. When the first current is a current for charging the integration capacitor, the second current is a current for discharging the integration capacitor. When the first current is a current for discharging the integration capacitor, the second current is a current for charging the integration capacitor. Absolute values of the first and second current are substantially equalized when the absolute value of the second current is larger than that of the first current and the output voltage goes zero. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种驱动电路，其执行致动器的电流驱动，并且适于制造消除外部电容器的IC，并且可以实现高速驱动。致动器驱动电路包括积分电路，其接收取决于输入信号的第一电流，用于根据由积分电路积分的电压产生PWM脉冲的电路，以及传送用于充电的第二电流的电路，根据来自驱动电路的输出电压放电积分电容器。当第一电流是用于对积分电容器充电的电流时，第二电流是用于对积分电容器进行放电的电流。当第一电流是放电积分电容器的电流时，第二电流是用于对积分电容器充电的电流。当第二电流的绝对值大于第一电流的绝对值并且输出电压为零时，第一和第二电流的绝对值基本相等。版权所有（C）2006，JPO＆NCIPI

7. 发明专利

JP2006115648A Chattering-prevention circuit and waveform shaping circuit with chattering-prevention circuit, and three-phase motor drive control circuit with waveform shaping circuit 有权
标题翻译：具有预防电路的防雷电路和波形形成电路以及带有波形形状电路的三相电动机驱动控制电路
公开(公告)号：JP2006115648A
公开(公告)日：2006-04-27
申请号：JP2004302311
申请日：2004-10-15
申请人： Rohm Co Ltd , ローム株式会社
发明人： FUJIMURA TAKASHI
IPC分类号： H02P6/16
CPC分类号： H02P6/16 , H02P6/10
摘要： PROBLEM TO BE SOLVED: To provide a waveform shaping circuit for preventing chattering by noise, and a motor drive control circuit for controlling generation of an erroneous rotational speed pulse signal. SOLUTION: The waveform shaping circuit 10 includes a U-phase comparator 11 for generating a U-phase pulse signal HU2 by a U-phase rotational position signal HU + ; a W-phase comparator 13 for generating a W-phase pulse signal HW2 by a W-phase rotational position signal HW + ; and a U-phase chattering control circuit 14 for changing the level of an output HU3 in the first built up of the U-phase pulse signal HU2, and maintaining it when the W-phase pulse signal HW2 has a low level, and moreover for changing the level of the output HU3 in the first built down of the U-phase pulse signal, and maintaining it when the W-phase pulse signal HW2 has a high level. A three-phase motor drive control circuit 2 includes the waveform shaping circuit 10, and a rotational speed pulse signal developing circuit 17 for generating a rotational speed pulse signal FG. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种用于防止噪声颤动的波形整形电路，以及用于控制错误转速脉冲信号的产生的电动机驱动控制电路。波形整形电路10包括用于通过U相旋转位置信号HU + 产生U相脉冲信号HU2的U相位比较器11。用于通过W相旋转位置信号HW + 产生W相脉冲信号HW2的W相位比较器13; 以及U相振荡控制电路14，用于改变在U相脉冲信号HU2的第一次组合中的输出HU3的电平，并且当W相脉冲信号HW2具有低电平时保持，在U相脉冲信号的第一个下降期间改变输出HU3的电平，并且当W相脉冲信号HW2具有高电平时保持该电平。三相电机驱动控制电路2包括波形整形电路10和用于产生转速脉冲信号FG的转速脉冲信号显影电路17。版权所有（C）2006，JPO＆NCIPI

8. 发明专利

JP2014086953A Semiconductor device, electronic apparatus and vehicle 有权
标题翻译：半导体器件，电子设备和车辆
公开(公告)号：JP2014086953A
公开(公告)日：2014-05-12
申请号：JP2012235813
申请日：2012-10-25
申请人： Rohm Co Ltd , ローム株式会社
发明人： FUJIMURA TAKASHI , IMAMURA MUGA , YUKI HIROFUMI
IPC分类号： H03K17/22 , H03K17/08 , H03K17/28
CPC分类号： H03K17/22 , H02J1/06 , H03K2217/0081 , Y02P80/23 , Y10T307/469
摘要： PROBLEM TO BE SOLVED: To enhance safety in the event of reduced power.SOLUTION: A semiconductor device 1 comprises a first chip 10 and a second chip 20 sealed in a single package. The first chip 10 includes a regulator 11 for generating an internal voltage Vreg from a supply voltage Vcc, a reset circuit 12 for monitoring the supply voltage Vcc and the internal voltage Vreg and generating a reset signal S4, and a controlled circuit 13 operative on the supply of the supply voltage Vcc. The second chip 20 includes a control circuit 21 for generating a control signal S7 for the controlled circuit 13 on the supply of the internal voltage Vreg. The reset signal S4 is input into both the control circuit 21 and the controlled circuit 13.
摘要翻译：要解决的问题：在降低功率的情况下增强安全性。解决方案：半导体器件1包括密封在单个封装中的第一芯片10和第二芯片20。第一芯片10包括用于从电源电压Vcc产生内部电压Vreg的调节器11，用于监视电源电压Vcc和内部电压Vreg并产生复位信号S4的复位电路12以及在其上工作的受控电路13 供应电源电压Vcc。第二芯片20包括用于在内部电压Vreg的供给时产生用于受控电路13的控制信号S7的控制电路21。复位信号S4被输入到控制电路21和受控电路13中。

9. 发明专利

JP2008259404A Feed motor lock detector 有权
标题翻译：进料电机锁定检测器
公开(公告)号：JP2008259404A
公开(公告)日：2008-10-23
申请号：JP2008015835
申请日：2008-01-28
申请人： Rohm Co Ltd , ローム株式会社
发明人： ITO YUJI , FUJIMURA TAKASHI
IPC分类号： H02P29/00
摘要： PROBLEM TO BE SOLVED: To provide a feed motor lock detector capable of detecting whether a feed motor is in a driven state or in a non-driven state without increasing the cost of parts and enlarging the size of a set base board. SOLUTION: The feed motor lock detector detects a counter electromotive voltage in the feed motor M and checks whether the feed motor M is in a driven state or in a non-driven state based on the level of the counter electromotive voltage. COPYRIGHT: (C)2009,JPO&INPIT

10. 发明专利

JP2006042423A Peak hold circuit, motor drive control circuit equipped with it, and motor device equipped with it 有权
标题翻译：峰值保持电路，配备电机驱动控制电路和配备电机的电机
公开(公告)号：JP2006042423A
公开(公告)日：2006-02-09
申请号：JP2004215039
申请日：2004-07-23
申请人： Rohm Co Ltd , ローム株式会社
发明人： FUJIMURA TAKASHI
IPC分类号： H02P6/16
CPC分类号： H02P6/16 , H02P6/15
摘要： PROBLEM TO BE SOLVED: To provide a peak hold circuit which operates stably even if the peak voltage, to be kept, of motor drive current detected voltage is minute. SOLUTION: This peak hold circuit 14 is equipped with a level shift circuit 50 which shifts the motor drive current detected voltage by fixed voltage, a differential amplifying circuit 60 which receives the input of the output voltage of the level shift circuit 50 and the voltage of an output terminal OUT and amplifies the difference between them prior to output, an output transistor 81 which receives the input of the output voltage of the differential amplifying circuit 60 with its base and emits a charge current from its emitter, a capacitor 82 which is charged with a charge current and keeps the voltage of the output terminal OUT, a bias element 84 which generates voltage substantially equal to the fixed voltage of the level shift circuit 50, and a resistive element 83 which is provided between the bias element 84 and the output terminal OUT and controls the charge current of the capacitor 82. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了提供一种峰值保持电路，其即使保持电动机驱动电流检测电压的峰值电压是微小的，也能够稳定地工作。解决方案：该峰值保持电路14配备有电平移位电路50，该电平移位电路50使电动机驱动电流检测电压偏移固定电压;差分放大电路60，其接收电平移位电路50的输出电压的输入;以及输出端子OUT的电压，并且在输出之前放大它们之间的差;输出晶体管81，其以其基极接收差分放大电路60的输出电压的输入并从其发射极发射充电电流;电容器82 充电电流并保持输出端子OUT的电压，产生基本上等于电平移位电路50的固定电压的电压的偏置元件84和设置在偏置元件84之间的电阻元件83 和输出端子OUT，并控制电容器82的充电电流。版权所有：（C）2006，JPO＆NCIPI

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