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1. 发明授权

US09735709B2 Power generation unit, electronic apparatus, transportation device, and method of controlling power generation unit 有权
公开(公告)号：US09735709B2
公开(公告)日：2017-08-15
申请号：US14644035
申请日：2015-03-10
申请人： SEIKO EPSON CORPORATION
发明人： Kunio Tabata , Atsuya Hirabayashi , Atsushi Oshima , Hiroyuki Yoshino , Noritaka Ide
IPC分类号： H01L41/113 , H02N2/18
CPC分类号： H02N2/181 , H01L41/1136
摘要： A power generation unit includes a deforming member (a beam) adapted to deform while switching a deformation direction, a first piezoelectric device provided to the deforming member (the beam), a second piezoelectric device provided to the deforming member (the beam), an inductor electrically connected to the first piezoelectric device, a switch disposed between the first piezoelectric device and the inductor, and a control section adapted to detect a voltage generated in the second piezoelectric device, and if the voltage detected has a level one of equal to and higher than a predetermined level, electrically connect the first piezoelectric device and the inductor to each other using the switch.

2. 发明授权

US09608548B2 Power generating device and electronic component 有权
公开(公告)号：US09608548B2
公开(公告)日：2017-03-28
申请号：US14071461
申请日：2013-11-04
申请人： SEIKO EPSON CORPORATION
发明人： Kunio Tabata , Hiroyuki Yoshino , Noritaka Ide , Atsushi Oshima
IPC分类号： H02N2/18
CPC分类号： H02N2/181 , H01L41/1136
摘要： A power generating device includes: a piezoelectric member that is formed from a piezoelectric material; one pair of electrodes that are installed to the piezoelectric member; a transformation unit that repeatedly transforms the piezoelectric member; an inductor that is installed between the one pair of electrodes and configures a resonance circuit together with a capacitive component of the piezoelectric member; a switch that is connected to the inductor in series; and a switch control unit that connects the switch when a transformation direction of the piezoelectric member is switched, and cuts off the switch when a time corresponding to a half period of a resonance period of the resonance circuit elapses.

3. 发明授权

US09252687B2 Power generation unit, secondary cell, and electronic apparatus 有权
标题翻译：发电单元，二次电池和电子设备
公开(公告)号：US09252687B2
公开(公告)日：2016-02-02
申请号：US14458170
申请日：2014-08-12
申请人： SEIKO EPSON CORPORATION
发明人： Noritaka Ide , Kunio Tabata , Atsushi Oshima , Hiroyuki Yoshino
IPC分类号： H01L41/113 , H02N2/18
CPC分类号： H02N2/181 , H01L41/1136 , H02N2/188
摘要： A power generation unit includes a deforming member adapted to repeatedly deform a piezoelectric element, a pair of electrodes provided to the piezoelectric element, an inductor disposed between the pair of electrodes, and constituting a resonant circuit together with a capacitive component of the piezoelectric element, a first switch connected in series to the inductor, a member adapted to detect a timing at which a deformation direction of the deforming member is switched, a full bridge rectifier adapted to rectify a current output from the pair of electrodes, a capacitor connected to the full bridge rectifier, and adapted to store a current supplied from the full bridge rectifier, a second switch connected between either one of the pair of electrodes and the capacitor, and a control circuit adapted to operate the first switch and the second switch.
摘要翻译：发电单元包括适于使压电元件反复变形的变形构件，设置在压电元件上的一对电极，设置在该对电极之间的电感器，并与压电元件的电容部件一起构成谐振电路，与电感器串联连接的第一开关，适于检测变形构件的变形方向切换的定时的构件，适于整流来自该对电极的电流输出的全桥整流器，连接到电感器的电容器全桥整流器，并且适于存储从全桥整流器提供的电流，连接在该对电极中的任一个与电容器之间的第二开关以及适于操作第一开关和第二开关的控制电路。

4. 发明授权

US09028023B2 Fluid ejection device and fluid ejection printer with a power amplifier stopping section 有权
标题翻译：流体喷射装置和具有功率放大器停止部分的流体喷射打印机
公开(公告)号：US09028023B2
公开(公告)日：2015-05-12
申请号：US14512302
申请日：2014-10-10
申请人： Seiko Epson Corporation
发明人： Kunio Tabata , Atsushi Oshima , Noritaka Ide , Shinichi Miyazaki , Hiroyuki Yoshino
IPC分类号： B41J29/38 , B41J2/045
CPC分类号： B41J2/04588 , B41J2/0452 , B41J2/04541 , B41J2/04548 , B41J2/0457 , B41J2/04581 , B41J2/04593 , B41J2/04596
摘要： A fluid ejection device includes: a modulator adapted to pulse-modulate a drive waveform signal forming a basis of a drive signal of an actuator to obtain a modulated signal; a digital power amplifier circuit adapted to power-amplify the modulated signal to obtain a power-amplified modulated signal; a low pass filter adapted to smooth the power-amplified modulated signal to obtain the drive signal; and a power amplification stopping section operating when holding a voltage of the actuator constant.
摘要翻译：流体喷射装置包括：调制器，适于脉冲调制形成致动器的驱动信号的基础的驱动波形信号以获得调制信号; 数字功率放大器电路，其适于对所述调制信号进行功率放大以获得功率放大调制信号; 低通滤波器，用于平滑功率放大调制信号以获得驱动信号; 以及在保持致动器的电压恒定时工作的功率放大停止部。

5. 发明授权

US09573365B2 Liquid ejecting device 有权
标题翻译：液体喷射装置
公开(公告)号：US09573365B2
公开(公告)日：2017-02-21
申请号：US14859135
申请日：2015-09-18
申请人： SEIKO EPSON CORPORATION
发明人： Hiroyuki Yoshino , Kunio Tabata , Atsushi Oshima , Noritaka Ide
IPC分类号： B41J2/045 , B41J2/175 , A61B17/3203 , B05B17/06 , A61B17/00
CPC分类号： B41J2/04541 , A61B17/3203 , A61B2017/00402 , A61B2017/32032 , B05B17/0653 , B41J2/04581 , B41J2/175
摘要： A liquid ejecting device includes a driving waveform signal generating circuit that generates a driving waveform signal, a modulation circuit that performs pulse modulation on the driving waveform signal to generate a modulation signal, a digital power amplifier that amplifies power of the modulation signal to generate a power amplification modulation signal in the form of a pulse wave, a filter that smoothes the power amplification modulation signal in the pulse wave to generate the driving signal, a connection cable that connects the filter to the capacitive load and is provided such that at least one of the filter and the capacitive load is detachable, a connection line information acquiring unit that acquires connection line information associated with the connection cable, and a frequency changing unit that changes a frequency when the modulation circuit performs the pulse modulation on the driving waveform signal, on the basis of the connection line.
摘要翻译：液体喷射装置包括产生驱动波形信号的驱动波形信号产生电路，对驱动波形信号进行脉冲调制以产生调制信号的调制电路，放大调制信号的功率以产生调制信号的数字功率放大器脉冲波形式的功率放大调制信号，使脉冲波中的功率放大调制信号平滑以产生驱动信号的滤波器，将滤波器连接到电容性负载的连接电缆，并提供至少一个滤波器和容性负载可拆卸的连接线信息获取单元，其获取与连接电缆相关联的连接线信息;以及频率改变单元，其在调制电路对驱动波形信号执行脉冲调制时改变频率，在连接线的基础上。

6. 发明授权

US08939533B2 Liquid ejection device and liquid ejection surgical instrument 有权
标题翻译：液体喷射装置和液体喷射手术器械
公开(公告)号：US08939533B2
公开(公告)日：2015-01-27
申请号：US14254726
申请日：2014-04-16
申请人： Seiko Epson Corporation
发明人： Atsushi Oshima , Kunio Tabata , Shinichi Miyazaki , Hiroyuki Yoshino , Noritaka Ide
IPC分类号： B41J29/38 , A61B17/3203 , B41J2/045
CPC分类号： A61B17/3203 , B41J2/04541 , B41J2/04548 , B41J2/0455 , B41J2/0457 , B41J2/04573 , B41J2/04581 , B41J2/04593 , B41J29/38
摘要： A liquid ejection device includes a drive waveform generator generating a drive waveform signal; a modulator performing pulse modulation on a signal from the drive waveform generator to provide a modulated signal; a digital power amplifier performing power amplification on the modulated signal to provide an amplified digital signal; a lowpass filter smoothing the amplified digital signal to provide a drive signal of an actuator; a compensator advancing the phase of the drive signal to provide a negative feedback signal; and a subtractor providing a differential signal between the drive waveform signal and the negative feedback signal as an input signal to the modulator. The liquid ejection device can be used as a liquid ejection surgical instrument.
摘要翻译：液体喷射装置包括产生驱动波形信号的驱动波形发生器; 对来自驱动波形发生器的信号执行脉冲调制以提供调制信号的调制器; 数字功率放大器，对调制信号进行功率放大，以提供放大的数字信号; 低通滤波器平滑放大的数字信号以提供致动器的驱动信号; 补偿器推进驱动信号的相位以提供负反馈信号; 以及在驱动波形信号和负反馈信号之间提供差分信号作为到调制器的输入信号的减法器。液体喷射装置可以用作液体喷射外科器械。

7. 发明授权

US09112433B2 Power generation unit, battery, electronic apparatus, transportation device, and method of controlling power generation unit 有权
标题翻译：发电机组，电池，电子设备，运输装置以及发电机组的控制方法
公开(公告)号：US09112433B2
公开(公告)日：2015-08-18
申请号：US13633187
申请日：2012-10-02
申请人： SEIKO EPSON CORPORATION
发明人： Noritaka Ide , Atsuya Hirabayashi , Kunio Tabata , Atsushi Oshima , Hiroyuki Yoshino
IPC分类号： H01L41/09 , H02N2/18 , H01L41/113
CPC分类号： H02N2/181 , H01L41/1136
摘要： A power generation unit includes a deforming member adapted to deform while switching a deformation direction, a piezoelectric device provided to the deforming member, a displacement detection section adapted to detect that the deforming member is displaced beyond a predetermined level, an inductor electrically connected to the piezoelectric device, a switch disposed between the piezoelectric device and the inductor, and a control section adapted to set the piezoelectric device and the inductor to an electrically conductive state via the switch if the displacement detection section detects that the deforming member is displaced beyond the predetermined level.
摘要翻译：发电单元包括适于在变形方向切换的同时变形的变形构件，设置在变形构件上的压电装置，适于检测变形构件位移超过预定水平的位移检测部，电连接到压电装置，设置在压电装置和电感器之间的开关，以及控制部，其适于将压电装置和电感器经由开关设置为导电状态，如果位移检测部检测到变形部件移动超过预定的水平。

8. 发明授权

US09088270B2 Capacitive load drive circuit, fluid ejection device and medical device 有权
标题翻译：电容负载驱动电路，流体喷射装置和医疗装置
公开(公告)号：US09088270B2
公开(公告)日：2015-07-21
申请号：US14282789
申请日：2014-05-20
申请人： SEIKO EPSON CORPORATION
发明人： Kunio Tabata , Atsushi Oshima , Hiroyuki Yoshino , Noritaka Ide
IPC分类号： H03K3/012 , H02M3/156 , B41J2/045 , H02M3/157
CPC分类号： H03K3/012 , B41J2/04541 , B41J2/04581 , H02M3/156 , H02M3/157
摘要： Operation of a digital power amplifier for power amplification of a modulated signal is stopped in a period in which a voltage value of a drive signal applied to a capacitive load is constant, to thereby suppress power loss. The power amplification is stopped either when half a period of time when the modulated signal in a first voltage state maintains the first voltage state elapses or when half a period of time when the modulated signal in a second voltage state which is lower in voltage than the first voltage state maintains the second voltage state elapses. Accordingly, when electric current does not flow in a inductor of a low pass filter, it is possible to stop the power amplification. Thus, it is possible to prevent generation of voltage fluctuation in the drive signal due to an electromotive force caused by a self-induction phenomenon of the inductor.
摘要翻译：在施加到电容性负载的驱动信号的电压值恒定的时段内停止用于调制信号的功率放大的数字功率放大器的操作，从而抑制功率损耗。当第一电压状态下的调制信号保持第一电压状态或当电压低于第二电压状态的第二电压状态的调制信号的半个时间段的半个时间段停止功率放大，第一电压状态保持第二电压状态已经过去。因此，当电流不在低通滤波器的电感器中流动时，可以停止功率放大。因此，可以防止由电感器的自感现象引起的电动势引起的驱动信号中的电压波动的产生。

9. 发明授权

US09073076B2 Capacitive load driving circuit and liquid ejection device 有权
标题翻译：电容式负载驱动电路和液体喷射装置
公开(公告)号：US09073076B2
公开(公告)日：2015-07-07
申请号：US14282847
申请日：2014-05-20
申请人： SEIKO EPSON CORPORATION
发明人： Atsushi Oshima , Kunio Tabata , Noritaka Ide , Hiroyuki Yoshino
IPC分类号： B41J29/38 , B05B12/02 , B41J2/045 , B41J2/175 , A61J3/07
CPC分类号： B05B12/02 , A61J3/07 , B41J2/04541 , B41J2/04548 , B41J2/04581 , B41J2/17503
摘要： A liquid ejection device, includes: a drive waveform signal output circuit which outputs a drive waveform signal to serve as a reference for the drive signal; a modulator which pulse-modulates the drive waveform signal and thus generates a first modulated signal and a second modulated signal having a different phase from the first modulated signal within a range from greater than 90 degrees to smaller than 270 degrees; a first digital power amplifier; a second digital power amplifier a first low pass filter which performs low pass filtering of the first amplified digital signal and thus generates a first demodulated signal; and a second low pass filter which performs low pass filtering of the second amplified digital signal and thus generates a second demodulated signal; wherein the first demodulated signal and the second demodulated signal are combined and applied as the drive signal to the capacitive load.
摘要翻译：一种液体喷射装置，包括：驱动波形信号输出电路，其输出用作驱动信号的基准的驱动波形信号; 调制器，其在大于90度至小于270度的范围内脉冲调制驱动波形信号，从而产生具有与第一调制信号不同相位的第一调制信号和第二调制信号; 第一个数字功率放大器; 第二数字功率放大器，对所述第一放大数字信号进行低通滤波并由此产生第一解调信号的第一低通滤波器; 以及第二低通滤波器，对第二放大数字信号进行低通滤波，从而产生第二解调信号; 其中第一解调信号和第二解调信号被组合并作为驱动信号施加到电容性负载。

10. 发明授权

US09006957B2 Power generation unit, electronic apparatus, transportation device, and method of controlling power generation unit 有权
标题翻译：发电机组，电子机器，运输装置以及发电机组的控制方法
公开(公告)号：US09006957B2
公开(公告)日：2015-04-14
申请号：US13633190
申请日：2012-10-02
申请人： Seiko Epson Corporation
发明人： Kunio Tabata , Atsuya Hirabayashi , Atsushi Oshima , Hiroyuki Yoshino , Noritaka Ide
IPC分类号： H01L41/113 , H02N2/18
CPC分类号： H02N2/181 , H01L41/1136
摘要： A power generation unit includes a deforming member (a beam) adapted to deform while switching a deformation direction, a first piezoelectric device provided to the deforming member (the beam), a second piezoelectric device provided to the deforming member (the beam), an inductor electrically connected to the first piezoelectric device, a switch disposed between the first piezoelectric device and the inductor, and a control section adapted to detect a voltage generated in the second piezoelectric device, and if the voltage detected has a level one of equal to and higher than a predetermined level, electrically connect the first piezoelectric device and the inductor to each other using the switch.
摘要翻译：发电单元包括适于在切换变形方向时变形的变形构件（梁），设置到变形构件（梁）的第一压电装置，设置在变形构件（梁）上的第二压电装置，电感器电连接到第一压电器件，设置在第一压电器件和电感器之间的开关，以及控制部分，其适于检测在第二压电器件中产生的电压，并且如果检测到的电压具有等于或等于高于预定水平，使用开关将第一压电器件和电感器彼此电连接。

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