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公开(公告)号：US20110254887A1
公开(公告)日：2011-10-20
申请号：US13084707
申请日：2011-04-12
CPC分类号： B41J29/38 , B41J2/04541 , B41J2/04568 , B41J2/04573 , B41J2/04581 , B41J2/04588 , B41J2/04593
摘要： A capacitive load driving device includes a drive waveform generator that generates a drive waveform signal, a subtractor that outputs a difference signal between the drive waveform signal and a feedback signal, a modulator that pulse-modulates the difference signal to output a modulated signal, a digital power amplifier that amplifies the modulated signal to output an amplified digital signal, a low pass filter that smoothes the amplified digital signal to output a drive signal for a capacitive load, a feedback circuit that outputs the feedback signal obtained from the drive signal, and an adjusting section that adjusts frequency characteristics of the feedback circuit based on capacitance of the capacitive load to be driven.
摘要翻译： 容性负载驱动装置包括产生驱动波形信号的驱动波形发生器，输出驱动波形信号和反馈信号之间的差分信号的减法器，对差分信号进行脉冲调制以输出调制信号的调制器， 数字功率放大器，其放大调制信号以输出放大的数字信号;低通滤波器，其使放大的数字信号平滑以输出用于容性负载的驱动信号;反馈电路，输出从驱动信号获得的反馈信号，以及 调整部，其基于要驱动的电容性负载的电容来调整反馈电路的频率特性。
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2.发明申请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：US20110242172A1
公开(公告)日：2011-10-06
申请号：US13075429
申请日：2011-03-30
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：US20110234702A1
公开(公告)日：2011-09-29
申请号：US13072444
申请日：2011-03-25
CPC分类号： H03F3/2171 , A61B17/3203 , B41J2/04541 , B41J2/04568 , B41J2/04581 , B41J2/04588 , B41J2/04595 , B41J2/04596
摘要： A capacitive load driving device includes a drive waveform generator adapted to generate a drive waveform signal, a subtraction section adapted to output a differential signal between the drive waveform signal and two feedback signals, a modulator adapted to perform pulse modulation on the differential signal to obtain a modulated signal; a digital power amplifier adapted to power-amplify the modulated signal to obtain an amplified digital signal, a low pass filter including an inductor and a capacitor, and adapted to smooth the amplified digital signal to obtain a drive signal of a capacitive load, a first feedback circuit adapted to feedback the drive signal to the subtraction section as a first feedback signal, and a second feedback circuit adapted to set forward a phase of the drive signal and to feed back the drive signal to the subtraction section as a second feedback signal.
摘要翻译： 一种电容性负载驱动装置，包括适于产生驱动波形信号的驱动波形发生器，适于在驱动波形信号和两个反馈信号之间输出差分信号的减法部分，适于对差分信号执行脉冲调制以获得 调制信号; 数字功率放大器，其适于对所述调制信号进行功率放大以获得放大数字信号，包括电感器和电容器的低通滤波器，并且适于平滑所述放大数字信号以获得电容性负载的驱动信号;第一 反馈电路，其适于将所述驱动信号反馈到所述减法部分作为第一反馈信号;以及第二反馈电路，其适于设置所述驱动信号的相位并将所述驱动信号反馈到所述减法部分作为第二反馈信号。
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公开(公告)号：US20110043559A1
公开(公告)日：2011-02-24
申请号：US12858296
申请日：2010-08-17
CPC分类号： B41J2/04588 , B41J2/04541 , B41J2/04573 , B41J2/04581
摘要： A load driving circuit includes first storage elements charged by a power supply and a series storage element group constituting unit that switches the connection state between the first storage elements to constitute a series storage element group in which the first storage elements are connected in series. A second storage element charging unit charges a second storage element using the series storage element group. Switching is performed between first and second connection states to apply voltage to the load. In the first connection state, the charged second storage element and the series storage element group are connected to the load while the second storage element and the series storage element group are connected in series. In the second connection state, the series storage element group is connected to the load while the series connection between the second storage element and the series storage element group is broken.
摘要翻译： 负载驱动电路包括由电源充电的第一存储元件和串联存储元件组构成单元，其切换第一存储元件之间的连接状态，以构成其中第一存储元件串联连接的串联存储元件组。 第二存储元件充电单元使用串联存储元件组对第二存储元件充电。 在第一和第二连接状态之间进行切换，以向负载施加电压。 在第一连接状态下，充电的第二存储元件和串联存储元件组连接到负载，而第二存储元件和串联存储元件组串联连接。 在第二连接状态下，串联存储元件组连接到负载，同时第二存储元件和串联存储元件组之间的串联断开。
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公开(公告)号：US20110109674A1
公开(公告)日：2011-05-12
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：US20110102486A1
公开(公告)日：2011-05-05
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：US20110090273A1
公开(公告)日：2011-04-21
申请号：US12905638
申请日：2010-10-15
IPC分类号： B41J29/38
CPC分类号： B41J2/04591 , B41J2/04553 , B41J2/0456 , B41J2/04581 , B41J2/0459
摘要： A liquid ejection apparatus which, by applying a drive voltage waveform to a piezoelectric element which drives an ejection nozzle, ejects a liquid from the ejection nozzle. The apparatus includes a reference voltage generating unit which generates a plurality of reference voltages, a drive voltage waveform data storage unit classifies the drive voltage waveform as either a voltage increasing section, decreasing section, or holding section, and stores drive voltage waveform data including a required time of a waveform section configuring the drive voltage waveform, and a voltage, selected from the plurality of reference voltages for the waveform section. The apparatus also includes a drive voltage waveform application unit which, in accordance with information relating to an adjustment of the ejection amount of the liquid ejected from the ejection nozzle, changes the required time included in the drive voltage waveform data, and applies the drive voltage waveform to the piezoelectric element.
摘要翻译： 一种液体喷射装置，其通过将驱动电压波形施加到驱动喷嘴的压电元件，从喷嘴喷出液体。 该装置包括产生多个参考电压的参考电压产生单元，驱动电压波形数据存储单元将驱动电压波形分类为升压部分，降压部分或保持部分，并存储驱动电压波形数据，其包括 配置驱动电压波形的波形部分的所需时间以及从波形部分的多个参考电压中选择的电压。 该装置还包括驱动电压波形施加单元，其根据与从喷射喷嘴喷射的液体的喷射量的调整相关的信息改变包括在驱动电压波形数据中的所需时间，并施加驱动电压 波形到压电元件。
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8.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：US20120287187A1
公开(公告)日：2012-11-15
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：US20110128317A1
公开(公告)日：2011-06-02
申请号：US12944060
申请日：2010-11-11
CPC分类号： B41J2/04588 , B41J2/04541 , B41J2/0455 , B41J2/04581 , B41J2/0459 , Y10T307/469
摘要： A capacitive load driving circuit includes: a voltage waveform output unit that outputs a voltage waveform used for driving a plurality of capacitive loads; and a voltage waveform applying unit that connects each of the plurality of capacitive loads to output of the voltage waveform output unit to thereby apply the voltage waveform to each of the plurality of capacitive loads, wherein the voltage waveform applying unit releases the connection between the capacitive load and the output of the voltage waveform output unit when voltage of the voltage waveform falls outside a voltage range determined for each of the plurality of capacitive loads, and connects the capacitive load to the output of the voltage waveform output unit when the voltage of the voltage waveform falls within the voltage range, to thereby apply a different voltage waveform to each of the plurality of capacitive loads.
摘要翻译： 电容式负载驱动电路包括：电压波形输出单元，输出用于驱动多个电容性负载的电压波形; 以及电压波形施加单元，其将所述多个电容性负载中的每一个连接到所述电压波形输出单元的输出，从而将所述电压波形施加到所述多个电容性负载中的每一个，其中所述电压波形施加单元释放所述电容 当电压波形的电压下降到对于多个容性负载中的每一个确定的电压范围之外时，电压波形输出单元的负载和输出，并且当电压波形输出单元的电压 电压波形落在电压范围内，从而向多个容性负载中的每一个施加不同的电压波形。
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