公开(公告)号：US07119475B2

公开(公告)日：2006-10-10

申请号：US10812390

申请日：2004-03-30

申请人： Jun Matsuzaki ,  Takashi Kawaguchi ,  Makoto Okeya

发明人： Jun Matsuzaki ,  Takashi Kawaguchi ,  Makoto Okeya

IPC分类号： H01L41/08

CPC分类号： H02N2/142 ,  H02N2/004 ,  H02N2/103

摘要： A drive device for a piezoelectric actuator, wherein the time needed to achieve highly efficient drive conditions is shortened to reduce power consumption, and stabilized control can be performed. The device has a phase difference detection device (phase difference/voltage conversion circuit (51)) for detecting detection signals of longitudinal oscillation and bending oscillation from an oscillator (5) and detecting the phase difference between these two signals, frequency control devices (52 to 56) for comparing the phase difference detected by the phase difference detection device with a standard phase difference value and controlling the frequency of a drive signal sent to a piezoelectric element (17) on the basis of the results of this comparison, and an amplitude detection device (amplitude detection circuit (57)) for detecting the amplitude of the detection signal of the piezoelectric element (17). The frequency control device compares the amplitude with a standard amplitude value and controls the frequency of the drive signal on the basis of the results of this comparison.

摘要翻译： 用于压电致动器的驱动装置，其中缩短实现高效率驱动条件所需的时间以减少功耗，并且可以执行稳定的控制。 该装置具有用于检测来自振荡器（5）的纵向振荡和弯曲振荡的检测信号并检测这两个信号之间的相位差的频率控制装置（52）的相位差检测装置（相位差/电压转换电路（51）） 至56），用于将由相位差检测装置检测的相位差与标准相位差进行比较，并且基于该比较的结果控制发送到压电元件（17）的驱动信号的频率，以及振幅 用于检测压电元件（17）的检测信号的振幅的检测装置（振幅检测电路（57））。 频率控制装置将振幅与标准振幅值进行比较，并根据该比较的结果控制驱动信号的频率。

公开(公告)号：US07298066B2

公开(公告)日：2007-11-20

申请号：US11269682

申请日：2005-11-09

申请人： Takashi Kawaguchi ,  Akihiro Sawada ,  Yutaka Yamazaki ,  Makoto Okeya

发明人： Takashi Kawaguchi ,  Akihiro Sawada ,  Yutaka Yamazaki ,  Makoto Okeya

IPC分类号： H01L41/08

CPC分类号： H02N2/103 ,  H01L41/0906 ,  H02N2/142

摘要： A drive apparatus for a piezoelectric actuator prevents locking drive frequency in a state of resonance due to harmonics. There is no need to provide external components to filter, and circuitry can easily be reduced in size. The drive apparatus has a phase difference-DC conversion circuit to detect vibrating state of the vibrating body, a comparison circuit, a harmonics detection circuit to detect that the vibrating body is resonating due to harmonics and outputting a harmonics detection signal, an integration circuit to control the frequency of the drive signal supplied to the piezoelectric element of the vibrating body, a variable frequency oscillation circuit, and a drive circuit. The integration circuit, the variable frequency oscillation circuit, and the drive circuit control the frequency of the drive signal on the basis of the output of the comparison circuit when a harmonics detection signal is not outputted and continue to vary the frequency of the drive signal without controlling the frequency of the drive signal on the basis of the output of the comparison circuit when a harmonics detection signal is being outputted.

摘要翻译： 用于压电致动器的驱动装置防止由于谐波而使驱动频率处于共振状态。 不需要提供外部组件进行过滤，电路可以轻松减小尺寸。 驱动装置具有检测振动体的振动状态的相位差 - 直流转换电路，比较电路，谐波检测电路，用于检测振动体由于谐波而谐振并输出谐波检测信号，积分电路 控制提供给振动体的压电元件的驱动信号的频率，可变频率振荡电路和驱动电路。 当不输出谐波检测信号时，积分电路，可变频率振荡电路和驱动电路基于比较电路的输出来控制驱动信号的频率，并且不继续改变驱动信号的频率而没有 当输出谐波检测信号时，基于比较电路的输出来控制驱动信号的频率。

公开(公告)号：US20060113863A1

公开(公告)日：2006-06-01

申请号：US11269682

申请日：2005-11-09

申请人： Takashi Kawaguchi ,  Akihiro Sawada ,  Yutaka Yamazaki ,  Makoto Okeya

发明人： Takashi Kawaguchi ,  Akihiro Sawada ,  Yutaka Yamazaki ,  Makoto Okeya

IPC分类号： H01L41/08

CPC分类号： H02N2/103 ,  H01L41/0906 ,  H02N2/142

摘要： A drive apparatus for a piezoelectric actuator prevents locking drive frequency in a state of resonance due to harmonics. There is no need to provide external components to filter, and circuitry can easily be reduced in size. The drive apparatus has a phase difference-DC conversion circuit to detect vibrating state of the vibrating body, a comparison circuit, a harmonics detection circuit to detect that the vibrating body is resonating due to harmonics and outputting a harmonics detection signal, an integration circuit to control the frequency of the drive signal supplied to the piezoelectric element of the vibrating body, a variable frequency oscillation circuit, and a drive circuit. The integration circuit, the variable frequency oscillation circuit, and the drive circuit control the frequency of the drive signal on the basis of the output of the comparison circuit when a harmonics detection signal is not outputted and continue to vary the frequency of the drive signal without controlling the frequency of the drive signal on the basis of the output of the comparison circuit when a harmonics detection signal is being outputted.

摘要翻译： 用于压电致动器的驱动装置防止由于谐波而使驱动频率处于共振状态。 不需要提供外部组件进行过滤，电路可以轻松减小尺寸。 驱动装置具有检测振动体的振动状态的相位差 - 直流转换电路，比较电路，谐波检测电路，用于检测振动体由于谐波而谐振并输出谐波检测信号，积分电路 控制提供给振动体的压电元件的驱动信号的频率，可变频率振荡电路和驱动电路。 当不输出谐波检测信号时，积分电路，可变频率振荡电路和驱动电路基于比较电路的输出控制驱动信号的频率，并且继续改变驱动信号的频率而没有 当输出谐波检测信号时，基于比较电路的输出来控制驱动信号的频率。

公开(公告)号：US20050231184A1

公开(公告)日：2005-10-20

申请号：US11066557

申请日：2005-02-28

申请人： Takashi Kawaguchi ,  Joji Kitahara ,  Makoto Okeya

发明人： Takashi Kawaguchi ,  Joji Kitahara ,  Makoto Okeya

IPC分类号： G04C3/00 ,  G04C3/12 ,  G04C10/00 ,  G05F3/04 ,  H01L41/04 ,  H01L41/09 ,  H02N2/00

CPC分类号： H02N2/101 ,  G04C3/12 ,  G04C10/00 ,  H02N2/004 ,  H02N2/142

摘要： In an electronic device 1 comprising a battery 200 and a piezoelectric actuator A, a power source voltage before drive control is started is maintained by a sample holding circuit 102, a reference voltage is set by a reference voltage generating circuit 103 on the basis of the power source voltage, and a control circuit 106 stops driving when the power source voltage falls below a drive stop voltage as compared by a second comparison circuit 105, and begins driving the piezoelectric actuator A again when the power source voltage exceeds the reference voltage as compared by a first comparison circuit 104. Therefore, the device can be more easily reduced in size by using a small power source, and the driving time can be markedly reduced using an intermittent driving procedure that corresponds to the conditions of the battery voltage.

摘要翻译： 在包括电池200和压电致动器A的电子设备1中，驱动控制开始之前的电源电压由采样保持电路102保持，基准电压由基准电压发生电路103设定 电源电压时，与第二比较电路105相比，当电源电压降低到驱动停止电压以下时，控制电路106停止驱动，当电源电压超过参考电压时，再次开始驱动压电致动器A 通过第一比较电路104.因此，通过使用小电源可以更容易地减小装置的尺寸，并且可以使用对应于电池电压的条件的间歇驱动程序来显着降低驱动时间。

公开(公告)号：US07675218B2

公开(公告)日：2010-03-09

申请号：US11076065

申请日：2005-03-10

申请人： Takashi Kawaguchi ,  Akihiro Sawada ,  Yutaka Yamazaki ,  Makoto Okeya

发明人： Takashi Kawaguchi ,  Akihiro Sawada ,  Yutaka Yamazaki ,  Makoto Okeya

IPC分类号： H01L41/09

CPC分类号： H02N2/062 ,  G04C3/12 ,  G04C17/005 ,  H01L41/0906

摘要： An electronic device comprising a power source, a piezoelectric actuator A, and a drive control apparatus 100 for controlling the driving of the piezoelectric actuator, wherein the drive control apparatus 100 is provided with a drive circuit 111 for supplying a drive signal SDR to the piezoelectric element of the vibrating body 12, a phase difference detection means 120 for detecting the phase difference indicating the vibration state of the vibrating body 12, a comparison voltage setting circuit 133 for correcting the target phase difference to be the target for the vibration state, and a drive frequency setting means 140 for comparing the phase difference with the target phase difference; and the piezoelectric actuator A can be driven with high efficiency independent of the drive voltage by modifying the drive frequency of the drive signal SDR so that the phase difference approaches the target phase difference based on the results of the above comparison.

摘要翻译： 一种电子设备，包括电源，压电致动器A和用于控制压电致动器的驱动的驱动控制装置100，其中驱动控制装置100设置有驱动电路111，用于将驱动信号SDR提供给压电 振动体12的元件，用于检测表示振动体12的振动状态的相位差的相位差检测单元120，将目标相位差校正为振动状态的目标的比较电压设定电路133以及 用于将相位差与目标相位差进行比较的驱动频率设定装置140; 并且通过修改驱动信号SDR的驱动频率，可以以与驱动电压无关的方式驱动压电致动器A，从而基于上述比较的结果，相位差接近目标相位差。

公开(公告)号：US07663978B2

公开(公告)日：2010-02-16

申请号：US11066557

申请日：2005-02-28

申请人： Takashi Kawaguchi ,  Joji Kitahara ,  Makoto Okeya

发明人： Takashi Kawaguchi ,  Joji Kitahara ,  Makoto Okeya

IPC分类号： G04C22/00 ,  G04F5/00 ,  G04C3/00 ,  H01L41/00

CPC分类号： H02N2/101 ,  G04C3/12 ,  G04C10/00 ,  H02N2/004 ,  H02N2/142

摘要： In an electronic device 1 comprising a battery 200 and a piezoelectric actuator A, a power source voltage before drive control is started is maintained by a sample holding circuit 102, a reference voltage is set by a reference voltage generating circuit 103 on the basis of the power source voltage, and a control circuit 106 stops driving when the power source voltage falls below a drive stop voltage as compared by a second comparison circuit 105, and begins driving the piezoelectric actuator A again when the power source voltage exceeds the reference voltage as compared by a first comparison circuit 104. Therefore, the device can be more easily reduced in size by using a small power source, and the driving time can be markedly reduced using an intermittent driving procedure that corresponds to the conditions of the battery voltage.

摘要翻译： 在包括电池200和压电致动器A的电子设备1中，驱动控制开始之前的电源电压由采样保持电路102保持，基准电压由基准电压发生电路103设定 电源电压时，与第二比较电路105相比，当电源电压降低到驱动停止电压以下时，控制电路106停止驱动，当电源电压超过参考电压时，再次开始驱动压电致动器A 通过第一比较电路104.因此，通过使用小电源可以更容易地减小装置的尺寸，并且可以使用对应于电池电压的条件的间歇驱动程序来显着降低驱动时间。

公开(公告)号：US20070278976A1

公开(公告)日：2007-12-06

申请号：US11076065

申请日：2005-03-10

申请人： Takashi Kawaguchi ,  Akihiro Sawada ,  Yutaka Yamazaki ,  Makoto Okeya

发明人： Takashi Kawaguchi ,  Akihiro Sawada ,  Yutaka Yamazaki ,  Makoto Okeya

IPC分类号： H02N2/00

CPC分类号： H02N2/062 ,  G04C3/12 ,  G04C17/005 ,  H01L41/0906

摘要： An electronic device comprising a power source, a piezoelectric actuator A, and a drive control apparatus 100 for controlling the driving of the piezoelectric actuator, wherein the drive control apparatus 100 is provided with a drive circuit 111 for supplying a drive signal SDR to the piezoelectric element of the vibrating body 12, a phase difference detection means 120 for detecting the phase difference indicating the vibration state of the vibrating body 12, a comparison voltage setting circuit 133 for correcting the target phase difference to be the target for the vibration state, and a drive frequency setting means 140 for comparing the phase difference with the target phase difference; and the piezoelectric actuator A can be driven with high efficiency independent of the drive voltage by modifying the drive frequency of the drive signal SDR so that the phase difference approaches the target phase difference based on the results of the above comparison.

摘要翻译： 一种电子设备，包括电源，压电致动器A和用于控制压电致动器的驱动的驱动控制装置100，其中驱动控制装置100设置有驱动电路111，用于将驱动信号SDR提供给压电 振动体12的元件，用于检测表示振动体12的振动状态的相位差的相位差检测单元120，将目标相位差校正为振动状态的目标的比较电压设定电路133以及 用于将相位差与目标相位差进行比较的驱动频率设定装置140; 并且通过修改驱动信号SDR的驱动频率，可以以与驱动电压无关的方式驱动压电致动器A，从而基于上述比较的结果，相位差接近目标相位差。

公开(公告)号：US07079451B2

公开(公告)日：2006-07-18

申请号：US10460621

申请日：2003-06-11

申请人： Makoto Okeya

发明人： Makoto Okeya

IPC分类号： G04C11/02

CPC分类号： G04G21/04 ,  G04G19/12 ,  G04R20/08

摘要： A time measurement device includes a power generator 2, secondary power source 31, current time counters 922 and 932, receiver circuit 42 for receiving a time standard radio wave, time display means 5 for displaying the current time, power detector 83 for outputting a power detection signal when the power generator 2 is in a power generating state or when a voltage stored in the secondary power source 31 is at a predetermined voltage value, operation mode switcher 874 switching, in response to the power detection signal, between a power saving mode in which time display is suspended and a standard mode in which time display is not suspended. The operation mode switcher 874 causes the time display means 5 to display the current time based on the time information counted by the time counters 922 and 932 and the time information received by the receiver circuit in response to the device being switched from the power saving mode to the standard mode.

摘要翻译： 时间测量装置包括发电机2，二次电源31，当前时间计数器922和932，用于接收时间标准无线电波的接收机电路42，用于显示当前时间的时间显示装置5，用于输出功率的功率检测器83 当发电机2处于发电状态时，或者当存储在二次电源31中的电压处于预定电压值时，操作模式切换器874根据功率检测信号切换功率节省模式 暂停显示时间和暂停时间显示的标准模式。 操作模式切换器874使得时间显示装置5基于由时间计数器922和932计数的时间信息和接收机电路响应于从节电模式切换的时间信息来显示当前时间 到标准模式。

公开(公告)号：US06320822B1

公开(公告)日：2001-11-20

申请号：US09341896

申请日：1999-08-26

申请人： Makoto Okeya ,  Teruhiko Fujisawa ,  Hiroshi Yabe ,  Joji Kitahara ,  Hiroyuki Kojima ,  Noriaki Shimura

发明人： Makoto Okeya ,  Teruhiko Fujisawa ,  Hiroshi Yabe ,  Joji Kitahara ,  Hiroyuki Kojima ,  Noriaki Shimura

IPC分类号： G04B900

CPC分类号： G04G19/12 ,  G04C10/00 ,  Y10T307/799 ,  Y10T307/858

摘要： Portable electronic equipment includes a carried-by-user detector for detecting whether the electronic equipment is in a state carried by a user or not. When the electronic equipment is in a state not carried by the user, i.e., when the user is not employing the electronic equipment, an operating mode is shifted from a normal operating mode to a power saving mode to reduce power consumption of the electronic equipment. Useless consumption of power during non-use of the electronic equipment can be thus reduced. Further, in electronic equipment (timepiece) incorporating a power generator for generating power by converting first energy (motion, pressure or heat) into electric energy as second energy, whether the power generator is generating power, i.e., whether the electronic equipment is carried by the user, is detected by a power generation detecting circuit, and when a non-power-generation time exceeds a predetermined time, the operating mode is shifted to the power saving mode, thereby reducing power consumption. Accordingly, the electronic equipment (timepiece) can be provided with which when the electronic equipment is in the state not carried by the user or when the electronic equipment is in the state not carried by the user and in a state of not generating power, the operating mode of the electronic equipment is shifted to the power saving mode and energy can be saved without inconveniencing the user.

摘要翻译： 便携式电子设备包括用于检测电子设备是否处于由用户携带的状态的携带用户检测器。 当电子设备处于未由用户承载的状态时，即当用户不使用电子设备时，操作模式从正常操作模式转换到省电模式，以减少电子设备的功耗。 可以减少在不使用电子设备期间无用的功率消耗。 此外，在通过将第一能量（运动，压力或热）转换为电能作为第二能量的发电机组合的电子设备（钟表）中，发电机是否发电，即电子设备是否由 用户被发电检测电路检测到，当非发电时间超过预定时间时，将工作模式转移到省电模式，从而降低功耗。 因此，可以提供电子设备（时计），当电子设备处于未被用户携带的状态时或者当电子设备处于未由用户承载的状态并且处于不发电的状态时， 电子设备的操作模式转移到省电模式，并且可以节省能量，而不会使用户不便。

公开(公告)号：US06278663B1

公开(公告)日：2001-08-21

申请号：US09459951

申请日：1999-12-13

申请人： Makoto Okeya ,  Hiroshi Yabe

发明人： Makoto Okeya ,  Hiroshi Yabe

IPC分类号： G04C300

CPC分类号： G04G19/00 ,  G04C10/00

摘要： A portable electronic apparatus and a control method for an electronic apparatus that detects the power-generating state of a power generating unit in a power-saving mode and to positively switch to a normal operation mode. The power-generation voltage of a power generating unit is detected in a power-generation-voltage detection process (steps S2 and S12), and the operation mode of a unit to be driven is switched between a normal operation mode and a power-saving mode according to the power-generating state of the power generating unit or according to the manipulation state of manipulation means in an operation-mode control process (steps S3 to S7, and S10 to S15). In a limiter control process (step S8), the operation of a limiter is disabled when the operation mode of the unit to be driven is the power-saving mode. As a result, it is possible in the power-saving mode that the power-generating state of the power generating unit is detected and the operation mode is positively switched to the normal operation mode in the power-generation-voltage detection process. In a limiter-operation disablement release process (step S13), the limiter is again operated after the operation mode is switched to the normal operation mode.

摘要翻译： 一种便携式电子设备和用于电力设备的控制方法，其以省电模式检测发电单元的发电状态，并确定切换到正常运行模式。发电单元的发电电压为 在发电电压检测处理中检测到（步骤S​​2和S12），并且根据功率的发电状态在正常操作模式和省电模式之间切换要驱动的单元的操作模式 或者在操作模式控制处理中根据操作装置的操作状态（步骤S3至S7，以及S10至S15）。 在限制器控制处理（步骤S8）中，当要驱动的单元的操作模式是省电模式时，限制器的操作被禁用。 结果，在省电模式中，可以在发电电压检测处理中检测到发电单元的发电状态，并且将工作模式确实切换到正常工作模式。 在限制器操作禁止释放处理（步骤S13）中，在操作模式切换到正常操作模式之后，再次操作限制器。