-
1.发明授权公开(公告)号：US08773098B2
公开(公告)日：2014-07-08
申请号：US13420679
申请日：2012-03-15
申请人： Kunio Tabata , Atsushi Oshima , Hiroyuki Yoshino , Noritaka Ide
发明人： Kunio Tabata , Atsushi Oshima , Hiroyuki Yoshino , Noritaka Ide
IPC分类号： H02M3/156
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。
-
公开(公告)号：US08757749B2
公开(公告)日：2014-06-24
申请号：US13351770
申请日：2012-01-17
申请人： Atsushi Oshima , Kunio Tabata , Noritaka Ide , Hiroyuki Yoshino
发明人： Atsushi Oshima , Kunio Tabata , Noritaka Ide , Hiroyuki Yoshino
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。
-
公开(公告)号：US08733873B2
公开(公告)日：2014-05-27
申请号：US13555740
申请日：2012-07-23
IPC分类号： B41J29/38
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.
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。
-
公开(公告)号：US08419147B2
公开(公告)日：2013-04-16
申请号：US12605480
申请日：2009-10-26
申请人： Noritaka Ide , Kunio Tabata , Shinichi Miyazaki , Atsushi Oshima , Hiroyuki Yoshino , Nobuaki Azami
发明人： Noritaka Ide , Kunio Tabata , Shinichi Miyazaki , Atsushi Oshima , Hiroyuki Yoshino , Nobuaki Azami
CPC分类号： B41J2/0459 , B41J2/04548 , B41J2/04573 , B41J2/04581 , B41J2/04588
摘要： A fluid ejection device that ejects fluid from an ejection port includes: a drive element that ejects fluid in accordance with a difference between voltages applied to a first terminal and a second terminal; a drive voltage waveform storing unit that stores a drive voltage waveform applied to the drive element; a plurality of power supplies each having a different voltage; and a drive voltage waveform applying unit that applies the drive voltage waveform to the drive element by switching among the plurality of power supplies connected to the first and second terminals of the drive element.
摘要翻译： 从喷射口喷出流体的流体喷射装置包括：驱动元件，其根据施加到第一端子和第二端子的电压之间的差异喷射流体; 驱动电压波形存储单元，其存储施加到驱动元件的驱动电压波形; 多个电源，每个电源具有不同的电压; 以及驱动电压波形施加单元，其通过在连接到驱动元件的第一和第二端子的多个电源之间切换来向驱动元件施加驱动电压波形。
-
公开(公告)号：US08398194B2
公开(公告)日：2013-03-19
申请号：US12623625
申请日：2009-11-23
申请人： Hiroyuki Yoshino , Atsushi Oshima , Noritaka Ide , Kunio Tabata , Nobuaki Azami , Shinichi Miyazaki
发明人： Hiroyuki Yoshino , Atsushi Oshima , Noritaka Ide , Kunio Tabata , Nobuaki Azami , Shinichi Miyazaki
CPC分类号： H03F3/217 , B41J2/04541 , B41J2/04581 , B41J2/04588 , B41J2/04593 , B41J2/04596 , H03F3/2171 , H03F3/2173
摘要： A power amplifier includes: a modulator pulse-modulating a drive waveform signal serving as a reference of a drive signal applied to an actuator and outputting a plurality of modulated signals; a digital power amplifier having a plurality of digital power amplifier stages each including a pair of push-pull switching elements, amplifying the power of the plurality of modulated signals, and outputting multi-value amplified digital signals; and a low pass filter smoothing the amplified digital signals and outputting the drive signal, wherein the modulator includes a control section switching one of a state where the same modulated signal is connected to two or more of the digital power amplifier stages and a state where different modulated signals are connected to different digital power amplifier stages to the other.
-
6.发明授权Capacitive load driving circuit, liquid ejection device, and printing apparatus 有权电容负载驱动电路，液体喷射装置和打印装置公开(公告)号：US08393699B2
公开(公告)日：2013-03-12
申请号：US12843140
申请日：2010-07-26
CPC分类号： H02M3/07 , B41J2/04541 , B41J2/04568 , B41J2/0457 , B41J2/04581 , Y10T307/724
摘要： A capacitive load driving circuit that drives an electrical load having a capacitive component, includes: a first power supply generating a first voltage; a second power supply generating a second voltage different from the first voltage; a plurality of charge storage elements charged by the first power supply; a first connection unit that connects the plurality of charge storage elements to the electrical load by switching connections among the charge storage elements; and a second connection unit that connects the second power supply to the electrical load.
摘要翻译： 一种用于驱动具有电容分量的电负载的电容性负载驱动电路，包括：产生第一电压的第一电源; 产生不同于所述第一电压的第二电压的第二电源; 由所述第一电源充电的多个电荷存储元件; 第一连接单元，通过切换电荷存储元件之间的连接来将多个电荷存储元件连接到电负载; 以及将所述第二电源连接到所述电负载的第二连接单元。
-
公开(公告)号：US09174435B2
公开(公告)日：2015-11-03
申请号：US13570867
申请日：2012-08-09
申请人： Hiroyuki Yoshino , Kunio Tabata , Atsushi Oshima , Noritaka Ide
发明人： Hiroyuki Yoshino , Kunio Tabata , Atsushi Oshima , Noritaka Ide
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。
-
8.发明授权Capacitive load driving circuit, ink jet printer, and fluid ejecting apparatus 有权电容式负载驱动电路，喷墨打印机和流体喷射装置公开(公告)号：US09102141B2
公开(公告)日：2015-08-11
申请号：US13075429
申请日：2011-03-30
IPC分类号： B41J29/38 , A61B17/3203 , B41J2/015 , B41J2/04 , B41J2/045 , H03F3/38 , H03F3/217 , H03F1/04 , H03F1/34 , H03K7/08
CPC分类号： B41J2/0455 , A61B17/3203 , B41J2/04541 , B41J2/04581 , B41J2/04588 , B41J2/04593 , B41J2/04596
摘要： A capacitive load driving circuit includes: a drive waveform signal generator that generates a drive waveform signal; a subtractor that outputs a differential signal between the drive waveform signal and a feedback signal; a modulator that pulse-modulates the differential signal and outputs a modulated signal; a digital power amplifier that amplifies the power of the modulated signal and outputs a power-amplified modulated signal; a smoothing filter that smoothes the power-amplified modulated signal, and outputs a drive signal of the capacitive load; a compensator that causes a phase to precede the drive signal; and an attenuator that attenuates signal amplitude in a band at least including a modulation frequency of the modulated signal. A signal output from a connecting point between the inductor and the wire is made to pass through the compensator and the attenuator and is then used as a feedback signal to the subtractor.
摘要翻译： 电容性负载驱动电路包括：驱动波形信号发生器，其产生驱动波形信号; 减法器，其在所述驱动波形信号和反馈信号之间输出差分信号; 调制器，对所述差分信号进行脉冲调制并输出调制信号; 数字功率放大器，其放大调制信号的功率并输出功率放大调制信号; 平滑滤波器，其对功率放大调制信号进行平滑，并输出电容性负载的驱动信号; 使相位超前于驱动信号的补偿器; 以及衰减器，其衰减至少包括调制信号的调制频率的频带中的信号幅度。 从电感器和导线之间的连接点输出的信号通过补偿器和衰减器，然后被用作到减法器的反馈信号。
-
9.发明授权Power generation unit, electronic apparatus, transportation unit, battery, method of controlling power generation unit 有权发电机组，电子设备，运输单元，电池，发电机组控制方法公开(公告)号：US08653718B2
公开(公告)日：2014-02-18
申请号：US13464638
申请日：2012-05-04
申请人： Noritaka Ide , Kunio Tabata , Atsushi Oshima , Hiroyuki Yoshino
发明人： Noritaka Ide , Kunio Tabata , Atsushi Oshima , Hiroyuki Yoshino
IPC分类号： H01L41/08
CPC分类号： H02N2/181 , H01L41/1136
摘要： A power generation unit includes: a deformation member which is deformed by switching a deformation direction; a piezoelectric element which is installed to the deformation member; a pair of electrodes which are installed to the piezoelectric element; an inductor which is installed between the pair of the electrodes and which together with a capacitive component of the piezoelectric element constitutes a resonance circuit; a switch which is connected in series to the inductor; a full bridge rectifier which is installed between the pair of the electrodes to rectify an AC current generated by the piezoelectric element; a voltage detection circuit which detects potentials of an anode and cathode of a diode included in the full bridge rectifier; and a controller which allows the switch to be in an ON state for a predetermined time interval based on an output signal of the voltage detection circuit.
摘要翻译： 发电单元包括：通过切换变形方向而变形的变形构件; 安装在变形构件上的压电元件; 安装在压电元件上的一对电极; 安装在一对电极之间并与压电元件的电容部件一起构成谐振电路的电感器; 与电感器串联连接的开关; 全桥整流器，安装在一对电极之间，以对由压电元件产生的交流电进行整流; 电压检测电路，其检测包括在全桥整流器中的二极管的阳极和阴极的电位; 以及控制器，其基于电压检测电路的输出信号使开关处于接通状态达预定时间间隔。
-
10.发明授权公开(公告)号：US08604673B2
公开(公告)日：2013-12-10
申请号：US13298999
申请日：2011-11-17
IPC分类号： H01L41/08
CPC分类号： H02N2/181 , H01L41/1136 , H02N2/186
摘要： A power generating device which includes a transformation member that is transformed by receiving a transformation force in a transformation direction, a first piezoelectric device that is disposed on the transformation member, a second piezoelectric device that is disposed on the transformation member, an inductor comprising a resonance circuit including the first piezoelectric device, a switch that is disposed in the resonance circuit, and a control unit that controls the switch to be in a conductive state for a predetermined period by detecting a voltage generated in the second piezoelectric device as the second piezoelectric device is transformed in response to the transformation force being applied to the transformation member.
摘要翻译： 一种发电装置，包括通过接收变换方向的变换力而变形的变换构件，配置在变换构件上的第一压电装置，配置在变换构件上的第二压电装置，电感器，包括： 谐振电路，包括第一压电器件，布置在谐振电路中的开关，以及控制单元，其通过检测在第二压电器件中产生的电压作为第二压电器来控制开关处于导通状态一段预定时间段 响应于施加到转换构件的变换力而转换装置。
-
-
-
-
-
-
-
-
-
搜索结果
75 条记录 (耗时 0.026 秒)
