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1.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。
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公开(公告)号：US08313161B2
公开(公告)日：2012-11-20
申请号：US12914628
申请日：2010-10-28
IPC分类号： B41J29/38
CPC分类号： B41J2/04588 , B41J2/04541 , B41J2/04548 , B41J2/04563 , B41J2/0457 , B41J2/0459 , B41J2/04593 , B41J2/04596
摘要： A liquid ejecting apparatus includes: a Modulator that performs pulse modulation for a drive waveform signal that becomes a reference for a drive signal of an actuator so as to acquire a modulated signal; a digital power amplifier that amplifies the power of the modulated signal so as to acquire a amplified digital signal; a low pass filter that smoothes the amplified digital signal so as to acquire the drive signal; a variable power source circuit that can change a power source voltage of the digital power amplifier; and a power source voltage control unit that controls changes in the power source voltage in units of a driving pulse that configures the drive signal of the actuator and can independently drive the actuator.
摘要翻译： 液体喷射装置包括：调制器，对作为致动器的驱动信号的基准的驱动波形信号进行脉冲调制，以获取调制信号; 数字功率放大器，其放大调制信号的功率，以获取放大的数字信号; 低通滤波器，其对放大的数字信号进行平滑以便获取驱动信号; 可变电源电路，其可以改变数字功率放大器的电源电压; 以及电源电压控制单元，其以构成所述致动器的驱动信号并且可以独立地驱动所述致动器的驱动脉冲为单位来控制所述电源电压的变化。
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公开(公告)号：US08256858B2
公开(公告)日：2012-09-04
申请号：US12914377
申请日：2010-10-28
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。
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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。
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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。
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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.
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7.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。
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公开(公告)号：US08313170B2
公开(公告)日：2012-11-20
申请号：US12605466
申请日：2009-10-26
申请人： Kunio Tabata , Nobuaki Azami , Hiroyuki Yoshino , Shinichi Miyazaki , Atsushi Oshima , Noritaka Ide
发明人： Kunio Tabata , Nobuaki Azami , Hiroyuki Yoshino , Shinichi Miyazaki , Atsushi Oshima , Noritaka Ide
CPC分类号： B41J2/0459 , B41J2/04548 , B41J2/04573 , B41J2/04581 , B41J2/04588
摘要： A fluid ejection device configured to eject fluid from an ejection port includes a driving element that pressurizes the fluid and causes it to be ejected from the ejection port by being driven according to a voltage applied thereto. A driving voltage waveform selecting unit selects a driving voltage waveform to be applied to the driving element from among a plurality of types of the stored driving voltage waveforms. Power sources set the voltage to be outputted. A power source voltage determining unit determines voltages to be set to the power sources on the basis of the selected driving voltage waveform. A driving voltage waveform applying unit applies the selected driving voltage waveform to the driving element by setting the determined voltages to the power sources and connecting the power sources to the driving element while switching the same.
摘要翻译： 构造成从喷射口喷射流体的流体喷射装置包括驱动元件，该驱动元件对流体进行加压，并通过根据施加到喷射口的电压被驱动而从喷射口喷射。 驱动电压波形选择单元从多种存储的驱动电压波形中选择施加到驱动元件的驱动电压波形。 电源设置要输出的电压。 电源电压确定单元基于所选择的驱动电压波形确定要设置到电源的电压。 驱动电压波形施加单元通过将确定的电压设置到电源并将电源连接到驱动元件而将所选择的驱动电压波形施加到驱动元件，同时切换该驱动电压波形。
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公开(公告)号：US08172373B2
公开(公告)日：2012-05-08
申请号：US12724816
申请日：2010-03-16
申请人： Atsushi Oshima , Shinichi Miyazaki , Kunio Tabata , Nobuaki Azami , Hiroyuki Yoshino , Noritaka Ide
发明人： Atsushi Oshima , Shinichi Miyazaki , Kunio Tabata , Nobuaki Azami , Hiroyuki Yoshino , Noritaka Ide
IPC分类号： B41J2/045
CPC分类号： B41J2/04581 , B41J2/04541 , B41J2/04555 , B41J2/0457
摘要： A fluid ejection device including, a drive element capable of storing a charge depending on a voltage applied to the drive element, a first capacitor, a second capacitor, and a power recovery module that recovers power from the drive element by connecting the first capacitor and the second capacitor to the drive element in series, wherein the power recovery module switches the first capacitor out of the in-series connection to further recover power from the drive element.
摘要翻译： 一种流体喷射装置，包括：能够根据施加到驱动元件的电压存储电荷的驱动元件，第一电容器，第二电容器和功率恢复模块，其通过连接第一电容器和第二电容器来恢复来自驱动元件的电力; 所述驱动元件串联的所述第二电容器，其中所述功率恢复模块将所述第一电容器切换为所述串联连接，以进一步从所述驱动元件恢复功率。
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公开(公告)号：US07880539B2
公开(公告)日：2011-02-01
申请号：US12615744
申请日：2009-11-10
申请人： Kunio Tabata , Atsushi Oshima , Noritaka Ide , Shinichi Miyazaki , Hiroyuki Yoshino , Nobuaki Azami
发明人： Kunio Tabata , Atsushi Oshima , Noritaka Ide , Shinichi Miyazaki , Hiroyuki Yoshino , Nobuaki Azami
IPC分类号： H03F3/38
CPC分类号： H03F3/217 , B41J2/04541 , B41J2/04568 , B41J2/04581 , B41J2/04588 , B41J2/04593 , B41J2/04596
摘要： A power amplifier includes: a modulator pulse-modulating a drive waveform signal serving as a reference of a drive signal applied to actuators and outputting a modulated signal; a digital power amplifier amplifying the power of the modulated signal and outputting an amplified digital signal; a low pass filter smoothing the amplified digital signal and outputting the drive signal; and an inverse filter circuit being disposed at a front stage of the modulator and capable of obtaining a desired waveform precision of the drive signal even when a frequency characteristic of a filter including the low pass filter and an electrostatic capacitor of the actuators varies depending on the number of driven actuators, wherein the inverse filter circuits include a plurality of inverse filters connected in series.
摘要翻译： 功率放大器包括：调制器，用于对驱动波形信号进行脉冲调制，所述驱动波形信号用作施加到致动器的驱动信号的参考，并输出调制信号; 数字功率放大器，放大调制信号的功率并输出放大的数字信号; 低通滤波器平滑放大的数字信号并输出驱动信号; 并且反相滤波器电路设置在调制器的前级，并且即使当包括低通滤波器的滤波器和致动器的静电电容器的频率特性根据所述驱动信号的频率特性变化时，也能够获得所需的驱动信号的波形精度 驱动致动器的数量，其中逆滤波器电路包括串联连接的多个反相滤波器。
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