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11.发明申请CAPACITIVE LOAD DRIVING CIRCUIT, LIQUID EJECTION DEVICE, AND PRINTING APPARATUS 有权电容式负载驱动电路，液体喷射装置和印刷装置公开(公告)号：US20110018919A1
公开(公告)日：2011-01-27
申请号：US12839765
申请日：2010-07-20
CPC分类号： H03K4/023 , B41J2/04541 , B41J2/04553 , B41J2/04568 , B41J2/0457 , B41J2/04581
摘要： A capacitive load driving circuit that drives a capacitive load, includes: a power supply unit that generates different voltages; a plurality of charge storage elements that are charged with the different voltages generated by the power supply unit; and a load driving section that connects a charge storage element arbitrarily selected from the plurality of charge storage elements to the capacitive load to drive the capacitive load, and connects, when at least two of the charge storage elements are selected, the at least two charge storage elements to the capacitive load in a state where the at least two charge storage elements are connected in series.
摘要翻译： 一种驱动电容性负载的容性负载驱动电路，包括：产生不同电压的电源单元; 多个电荷存储元件，其被所述电源单元产生的不同电压充电; 以及负载驱动部，其将从所述多个电荷存储元件任意选择的电荷存储元件连接到所述电容性负载，以驱动所述电容性负载，并且当选择了所述至少两个所述电荷存储元件时，连接所述至少两个电荷 在所述至少两个电荷存储元件串联连接的状态下将所述存储元件连接到所述电容性负载。
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公开(公告)号：US20100328379A1
公开(公告)日：2010-12-30
申请号：US12821324
申请日：2010-06-23
IPC分类号： B41J29/38
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。
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公开(公告)号：US20100117732A1
公开(公告)日：2010-05-13
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： H03F3/217
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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公开(公告)号：US20100103213A1
公开(公告)日：2010-04-29
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
IPC分类号： B41J29/38
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：US20100103212A1
公开(公告)日：2010-04-29
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
IPC分类号： B41J29/38
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：US20100102882A1
公开(公告)日：2010-04-29
申请号：US12605475
申请日：2009-10-26
申请人： Hiroyuki YOSHINO , Nobuaki AZAMI , Shinichi MIYAZAKI , Kunio TABATA , Atsushi OSHIMA , Noritaka IDE
发明人： Hiroyuki YOSHINO , Nobuaki AZAMI , Shinichi MIYAZAKI , Kunio TABATA , Atsushi OSHIMA , Noritaka IDE
IPC分类号： H03F3/217
CPC分类号： B41J2/14274 , B41J2/04541 , B41J2/04581 , B41J2/04588
摘要： An electric load driving circuit for driving an electric load having a capacity component includes a plurality of power sources generating different voltages, capacitors provided parallel to the plurality of power sources, a switch control unit that switches connections between the capacitors and the electric load and thereby switching a voltage applied to the electric load, discharge paths that enable discharging electric charge stored in the capacitor, and a discharge control unit that controls a quantity of electric charge discharged from the discharge paths.
摘要翻译： 用于驱动具有电容分量的电负载的电负载驱动电路包括产生不同电压的多个电源，与多个电源并联设置的电容器，切换电容器与电负载之间的连接的开关控制单元 切换施加到电负载的电压，能够放电存储在电容器中的电荷的放电路径;以及放电控制单元，其控制从放电路径排出的电荷量。
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公开(公告)号：US20120262512A1
公开(公告)日：2012-10-18
申请号：US13448160
申请日：2012-04-16
IPC分类号： B41J29/38
CPC分类号： B41J2/04581 , B41J2/04541 , B41J2/04588 , B41J2/04596
摘要： A reference voltage waveform reciprocating between a first voltage and a second voltage is supplied to a piezoelectric element via a switch. If a switch is set to a connected state (ON), the reference voltage waveform is applied to the piezoelectric element, and if the switch is set to a disconnected state (OFF), the voltage when the switch is set to OFF continues to be applied. Therefore, it becomes possible to apply a variety of drive signals only by switching the switch in accordance with increase and decrease of the reference voltage waveform, and there is no need to store a plurality of types of drive signals. Further, it is possible to start to apply the drive signal immediately when the voltage of the reference voltage waveform reaches the target voltage.
摘要翻译： 在第一电压和第二电压之间往复运动的参考电压波形经由开关提供给压电元件。 如果开关设置为连接状态（ON），则将基准电压波形施加到压电元件，并且如果开关设置为断开状态（OFF），则将开关设置为OFF时的电压继续为 应用。 因此，仅通过根据参考电压波形的增加和减少来切换开关就可以应用各种驱动信号，并且不需要存储多种类型的驱动信号。 此外，当参考电压波形的电压达到目标电压时，可以立即开始施加驱动信号。
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18.发明申请CAPACITIVE LOAD DRIVING CIRCUIT, LIQUID EJECTION DEVICE, AND PRINTING APPARATUS 有权电容式负载驱动电路，液体喷射装置和印刷装置公开(公告)号：US20110018355A1
公开(公告)日：2011-01-27
申请号：US12843140
申请日：2010-07-26
IPC分类号： H02J4/00
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：US20100127777A1
公开(公告)日：2010-05-27
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
IPC分类号： H03F3/16
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.
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，驱动波形信号作为施加到致动器的驱动信号的参考，并输出多个调制信号; 数字功率放大器，具有多个数字功率放大器级，每个数字功率放大级包括一对推挽式开关元件，放大多个调制信号的功率，并输出多值放大数字信号; 以及低通滤波器平滑放大的数字信号并输出驱动信号，其中调制器包括控制部分，其切换相同调制信号连接到两个或更多个数字功率放大器级的状态之一，以及不同的状态 调制信号被连接到不同的数字功率放大器级到另一个。
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公开(公告)号：US20100097114A1
公开(公告)日：2010-04-22
申请号：US12582766
申请日：2009-10-21
申请人： Shinichi MIYAZAKI , Hiroyuki YOSHINO , Nobuaki AZAMI , Atsushi OSHIMA , Noritaka IDE , Kunio TABATA
发明人： Shinichi MIYAZAKI , Hiroyuki YOSHINO , Nobuaki AZAMI , Atsushi OSHIMA , Noritaka IDE , Kunio TABATA
IPC分类号： H03K7/08
CPC分类号： H03K7/08 , B41J2/04541 , B41J2/04581 , B41J2/04588 , B41J2/04593 , B41J2/04596 , H03K5/15013 , H03K2005/00247
摘要： A pulse width modulation circuit includes: a reference signal generator which generates a plurality of mutually differing reference signals; a comparator which compares the reference signals and an input signal with respect to magnitude, and outputs results of the comparison as a plurality of comparison signals with mutually differing phases; and a synthesizer which, using a logical operation, outputs the plurality of comparison signals output from the comparator as a pulse width modulated signal configured of one or more binary signals.
摘要翻译： 脉冲宽度调制电路包括：参考信号发生器，其生成多个相互不同的参考信号; 比较器，比较参考信号和输入信号相对于幅度，并将比较结果作为具有相互不同相位的多个比较信号; 以及合成器，其使用逻辑运算将从比较器输出的多个比较信号作为由一个或多个二进制信号配置的脉宽调制信号输出。
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