DC-AC converter and conversion circuit
    1.
    发明授权
    DC-AC converter and conversion circuit 有权
    DC-AC转换器和转换电路

    公开(公告)号:US08760897B2

    公开(公告)日:2014-06-24

    申请号:US13455758

    申请日:2012-04-25

    IPC分类号: H02M7/537 G05F1/00

    摘要: A DC-AC converter is provided. The DC-AC converter includes a time-varying DC power generating circuit, an AC power generating circuit and a transmission capacitor. The time-varying DC power generating circuit is controlled by a pulse width modulation (PWM) signal to transform a DC source into a time-varying DC power. With reference to the time-varying DC power, the AC power generating circuit is controlled by a first polarity switching and a second polarity switching signal to generate an AC power. The transmission capacitor, coupled to the time-varying DC power generating circuit and the AC power generating circuit, transmits the time-varying DC power from the time-varying DC generating circuit to the AC power generating circuit.

    摘要翻译: 提供一个DC-AC转换器。 DC-AC转换器包括时变直流发电电路,交流发电电路和发送电容器。 时变直流发电电路由脉冲宽度调制(PWM)信号控制,将直流电源变换成时变直流电源。 参考时变直流电源,通过第一极性切换和第二极性切换信号来控制交流发电电路,生成交流电力。 耦合到时变直流发电电路和交流发电电路的发送电容器将来自时变直流发电电路的时变直流电力发送到交流发电电路。

    DC-AC CONVERTER AND CONVERSION CIRCUIT
    2.
    发明申请
    DC-AC CONVERTER AND CONVERSION CIRCUIT 有权
    直流 - 交流转换器和转换电路

    公开(公告)号:US20130148383A1

    公开(公告)日:2013-06-13

    申请号:US13455758

    申请日:2012-04-25

    IPC分类号: H02M3/335

    摘要: A DC-AC converter is provided. The DC-AC converter includes a time-varying DC power generating circuit, an AC power generating circuit and a transmission capacitor. The time-varying DC power generating circuit is controlled by a pulse width modulation (PWM) signal to transform a DC source into a time-varying DC power. With reference to the time-varying DC power, the AC power generating circuit is controlled by a first polarity switching and a second polarity switching signal to generate an AC power. The transmission capacitor, coupled to the time-varying DC power generating circuit and the AC power generating circuit, transmits the time-varying DC power from the time-varying DC generating circuit to the AC power generating circuit.

    摘要翻译: 提供一个DC-AC转换器。 DC-AC转换器包括时变直流发电电路,交流发电电路和发送电容器。 时变直流发电电路由脉冲宽度调制(PWM)信号控制,将直流电源变换成时变直流电源。 参考时变直流电源,通过第一极性切换和第二极性切换信号来控制交流发电电路,生成交流电力。 耦合到时变直流发电电路和交流发电电路的发送电容器将来自时变直流发电电路的时变直流电力发送到交流发电电路。

    N-phase full bridge power converter
    3.
    发明授权
    N-phase full bridge power converter 有权
    N相全桥电源转换器

    公开(公告)号:US08149596B2

    公开(公告)日:2012-04-03

    申请号:US12504035

    申请日:2009-07-16

    IPC分类号: H02M3/335 H02M7/5387

    CPC分类号: H02M3/3378 H02M2003/1586

    摘要: An N-phase full bridge power converter, comprising: a load device; a plurality of bridge legs, each being composed of two power switches; a plurality of transformers, each being coupled between two nodes each disposed between two power switches in two adjacent bridge legs on its primary side and coupled to the load device on its secondary side; and a plurality of inductors, each being connected between a node and the primary side of one of the transformers corresponding thereto.

    摘要翻译: 一种N相全桥功率转换器,包括:负载装置; 多个桥脚,每个由两个电源开关组成; 多个变压器,每个变压器耦合在两个节点之间,每个节点之间设置在其初级侧上的两个相邻桥接腿中的两个功率开关之间,并且在其次级侧耦合到负载装置; 以及多个电感器,每个电感器连接在与其对应的一个变压器的节点和初级侧之间。

    CONTROL CIRCUIT AND METHOD FOR BACKLIGHT SOURCES, AND IMAGE DISPLAY APPARATUS AND LIGHTING APPARATUS USING THE SAME
    5.
    发明申请
    CONTROL CIRCUIT AND METHOD FOR BACKLIGHT SOURCES, AND IMAGE DISPLAY APPARATUS AND LIGHTING APPARATUS USING THE SAME 有权
    用于背光源的控制电路和方法,以及使用其的图像显示装置和照明装置

    公开(公告)号:US20100102752A1

    公开(公告)日:2010-04-29

    申请号:US12490567

    申请日:2009-06-24

    IPC分类号: H05B37/02

    摘要: In light emitting diode (LED) control, a plurality of duty cycle signals corresponding to a plurality of LEDs are stored in a dual-port memory by memory mapping. By sampling, the stored duty cycle signals are outputted to generate a plurality of parallel single-bit data each having one single bit. After the single-bit data are converted by a data transmission module, each bit of the single-bit data is serially outputted to a drive module to drive the LEDs. Thus, the ON duty cycles of the LEDs are modulated by pulse width modulation (PWM), light emitted from the LEDs are mixed in time-domain, and the brightness of the LEDs can be controlled.

    摘要翻译: 在发光二极管(LED)控制中,通过存储器映射将对应于多个LED的多个占空比信号存储在双端口存储器中。 通过采样,输出存储的占空比信号以产生多个并行单位数据,每个数据具有一个单个位。 在通过数据传输模块转换单位数据之后,将单位数据的每一位串行输出到驱动模块以驱动LED。 因此,LED的导通占空比由脉冲宽度调制(PWM)调制,从LED发射的光在时域上混合,并且可以控制LED的亮度。

    Spray coating device
    6.
    发明授权
    Spray coating device 有权
    喷涂装置

    公开(公告)号:US6139636A

    公开(公告)日:2000-10-31

    申请号:US189846

    申请日:1998-11-12

    IPC分类号: B05B1/14 B05C11/08 B05B13/04

    CPC分类号: B05B1/14 B05C11/08

    摘要: A spray coating device for coating a rotating wafer according to the invention is disclosed. The spray coating device comprises a spray head having a plurality of spray holes which are located on one end thereof with more in number on both sides than on the center of the end for uniformly spraying a chemical liquid on the rotated wafer. Since spray holes are more in number on the both sides than on the center of the end, the rotated wafer can be uniformly spray coated with the chemical liquid even though several spray holes are congested.

    摘要翻译: 公开了一种用于涂覆根据本发明的旋转晶片的喷涂装置。 喷涂装置包括喷头,喷头具有多个喷孔,该多个喷孔位于其一端,其两侧的数量多于末端的中心,用于均匀地喷洒旋转的晶片上的化学液体。 由于喷孔在两侧的数量多于端部的中心,即使几个喷孔堵塞,旋转的晶片也可以均匀地喷涂有化学液体。

    Dispensing system of a coater
    7.
    发明授权
    Dispensing system of a coater 失效
    涂布机分配系统

    公开(公告)号:US6099646A

    公开(公告)日:2000-08-08

    申请号:US185404

    申请日:1998-11-03

    IPC分类号: B05C11/08 B05C11/10 B05C11/00

    CPC分类号: B05C11/08 B05C11/1002

    摘要: A dispensing system used in a spin coater is provided to transport a solvent to a wafer. The dispensing, system includes a switch valve, a sucking-back valve, a solenoid valve, a speed control unit of the sucking-back valve, and a speed control unit of the switch valve. The switch valve controls a solvent dispensing status. The sucking-back valve receives the solvent from the switch valve and exports the solvent to a wafer. The solenoid valve controls the switch valve and the sucking-back valve. The speed control unit of the switch valve is coupled between the switch valve and the solenoid valve and is used for a control of action speed on the switch valve. The speed control unit of the sucking-back valve is coupled between the switch valve and the sucking-back valve, and is used for a control of action speed of the sucking-back valve by a sufficient delay time of action.

    摘要翻译: 提供用于旋转涂布机中的分配系统以将溶剂输送到晶片。 分配系统包括开关阀,回吸阀,电磁阀,回吸阀的速度控制单元和开关阀的速度控制单元。 开关阀控制溶剂分配状态。 吸回阀从开关阀接收溶剂并将溶剂输出到晶片。 电磁阀控制开关阀和回吸阀。 开关阀的速度控制单元连接在开关阀和电磁阀之间,用于控制开关阀上的动作速度。 回抽阀的速度控制单元联接在开关阀和回吸阀之间,用于通过足够的延迟动作来控制回抽阀的动作速度。

    Device and control structure of multi-level pulse width modulation
    9.
    发明授权
    Device and control structure of multi-level pulse width modulation 失效
    多级脉宽调制的器件与控制结构

    公开(公告)号:US06927715B2

    公开(公告)日:2005-08-09

    申请号:US09750819

    申请日:2000-12-28

    IPC分类号: H03M1/82 H03M3/00

    CPC分类号: H03M1/822

    摘要: A multi-level pulse width modulation (MPWM) digital-to-analog converter for receiving a n-bit pulse code modulation (PCM) signal and then outputting a m-level analog signal is provided. The MPWM DAC comprises a converter circuit, 2m first output drivers, 2m second output drivers and a control circuit. The converter circuit is used for converting (n-m) most significant bits (MSB) of the n-bit PWM signal into a PWM waveform, and then generating a first input signal and a second input signal. Each of the 2m first output drivers is used for receiving the first input signal, and then generating a first output current, wherein the first output currents of the 2m first output drivers can be equal or not. Each of the 2m second output drivers is used for receiving the second input signal, and then generating a second output current, wherein the second output currents of the 2m first output drivers can be equal or not. The control circuit is coupled to the converter circuit, 2m first output drivers, and 2m second output drivers, for controlling the on-off status of each of the first and the second output drivers.

    摘要翻译: 提供了用于接收n位脉码调制(PCM)信号,然后输出m电平模拟信号的多电平脉宽调制(MPWM)数/模变换器。 MPWM DAC包括转换器电路,第二输出驱动器,第二输出驱动器和控制电路。 转换器电路用于将n位PWM信号的(n-m)最高有效位(MSB)转换为PWM波形,然后产生第一输入信号和第二输入信号。 两个第一输出驱动器中的每一个用于接收第一输入信号,然后产生第一输出电流,其中第二输出驱动器的第一输出电流 司机可以平等与否。 两个第二输出驱动器中的每一个用于接收第二输入信号,然后产生第二输出电流,其中第二输出电流的第二输出电流 司机可以平等与否。 控制电路耦合到转换器电路,第二输出驱动器和第二输出驱动器,用于控制第一和第二输出驱动器的开/关状态, 第二个输出驱动。

    Method for building a timbre sample databank for a waveform table
    10.
    发明授权
    Method for building a timbre sample databank for a waveform table 失效
    为波形表构建音色样本数据库的方法

    公开(公告)号:US6020550A

    公开(公告)日:2000-02-01

    申请号:US313234

    申请日:1999-05-17

    申请人: Ming-Che Yang

    发明人: Ming-Che Yang

    IPC分类号: G10H7/02 G10H7/00

    摘要: An improved method for forming a timbre sample (Q sample) is described. A first Q sample is extracted. A fixed length of the first Q sample is extracted to form a first QL. A portion of the first Q sample other than the first QL is treated as a first pre-waveform. A last portion of the first pre-waveform is extracted and is processed with the second Q sample by a first COS modulation so as to obtain a second QL, which is connected to the first pre-waveform to form a second Q sample. A first period waveform of the second QL and a last portion of the first pre-waveform are processed by a second COS modulation to form a single period QL. Repeating the single period QL forms a third QL. Connecting the third QL to the first pre-waveform forms a third Q sample. The second QL is transformed by a digital Fourier transformation, and its high frequency modes are removed. The transformed second QL is inversely transformed back by an inverse digital Fourier transformation to form a fourth QL. Adding the third QL and the fourth QL forms a fifth WL sample, which power is properly normalized. A second pre-waveform is obtained by repeating the sixth QL. The first and second of pre-waveforms are processed by a linear cross fading algorithm to form a third pre-waveform. The third pre-waveform and the sixth QL are connected together to obtain an improved Q sample.

    摘要翻译: 描述了用于形成音色样本(Q样本)的改进方法。 提取第一个Q样本。 提取第一Q样本的固定长度以形成第一QL。 除了第一QL之外的第一Q样本的一部分被视为第一预波形。 提取第一预波形的最后部分,并通过第一COS调制与第二Q采样进行处理,以获得连接到第一预波形以形成第二Q采样的第二QL。 通过第二COS调制来处理第二QL的第一周期波形和第一预波形的最后部分以形成单周期QL。 重复单期QL形成第三个QL。 将第三个QL连接到第一个预波形成第三个Q样本。 通过数字傅里叶变换来转换第二个QL,并且去除其高频模式。 变换的第二QL通过逆数字傅里叶变换逆向变换形成第四个QL。 添加第三个QL和第四个QL形成第五个WL样本,其功率被适当地归一化。 通过重复第六个QL获得第二个预先波形。 第一和第二预波形由线性交叉衰落算法处理以形成第三预波形。 第三预波形和第六QL连接在一起以获得改进的Q样本。