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    • 2. 发明申请
    • DC-DC Converter
    • DC-DC转换器
    • US20110043179A1
    • 2011-02-24
    • US12917913
    • 2010-11-02
    • Shiue Shin LiuTse-Hsiang Hsu
    • Shiue Shin LiuTse-Hsiang Hsu
    • G05F1/46
    • H02M3/1588H02M3/156Y02B70/1466
    • A DC-DC converter providing a DC output voltage at an output node. The DC-DC converter comprises an output stage, a digital controller, and a controller. The output stage comprises a pull-up circuit having a control terminal and coupled between a first fixed voltage and a internal node, a pull-down circuit coupled between the internal node and a second fixed voltage, and a low pass filter coupled between the internal node and the output node. The digital controller is powered by the DC output voltage and adjusts the DC output voltage by controlling the output stage. The controller controls a connection of a feedback path, comprising the digital controller, between the output node and the control terminal according to the DC output voltage.
    • DC-DC转换器,在输出节点提供直流输出电压。 DC-DC转换器包括输出级,数字控制器和控制器。 输出级包括具有控制端并耦合在第一固定电压和内部节点之间的上拉电路,耦合在内部节点和第二固定电压之间的下拉电路以及耦合在内部节点之间的低通滤波器 节点和输出节点。 数字控制器由直流输出电压供电,通过控制输出级调节直流输出电压。 控制器根据直流输出电压控制包括数字控制器的反馈路径在输出节点和控制终端之间的连接。
    • 3. 发明授权
    • DC-DC converter
    • DC-DC转换器
    • US07852057B2
    • 2010-12-14
    • US11865765
    • 2007-10-02
    • Shiue Shin LiuTse-Hsiang Hsu
    • Shiue Shin LiuTse-Hsiang Hsu
    • G05F1/40
    • H02M3/1588H02M3/156Y02B70/1466
    • A DC-DC converter providing a DC output voltage at an output node. The DC-DC converter comprises an output stage, a digital controller, and a controller. The output stage comprises a pull-up circuit having a control terminal and coupled between a first fixed voltage and a internal node, a pull-down circuit coupled between the internal node and a second fixed voltage, and a low pass filter coupled between the internal node and the output node. The digital controller is powered by the DC output voltage and adjusts the DC output voltage by controlling the output stage. The controller controls a connection of a feedback path, comprising the digital controller, between the output node and the control terminal according to the DC output voltage.
    • DC-DC转换器,在输出节点提供直流输出电压。 DC-DC转换器包括输出级,数字控制器和控制器。 输出级包括具有控制端并耦合在第一固定电压和内部节点之间的上拉电路,耦合在内部节点和第二固定电压之间的下拉电路以及耦合在内部节点之间的低通滤波器 节点和输出节点。 数字控制器由直流输出电压供电,通过控制输出级调节直流输出电压。 控制器根据直流输出电压控制包括数字控制器的反馈路径在输出节点和控制终端之间的连接。
    • 4. 发明申请
    • DC-DC CONVERTER
    • DC-DC转换器
    • US20090085532A1
    • 2009-04-02
    • US11865765
    • 2007-10-02
    • Shiue Shin LiuTse-Hsiang Hsu
    • Shiue Shin LiuTse-Hsiang Hsu
    • G05F1/10
    • H02M3/1588H02M3/156Y02B70/1466
    • A DC-DC converter providing a DC output voltage at an output node. The DC-DC converter comprises an output stage, a digital controller, and a controller. The output stage comprises a pull-up circuit having a control terminal and coupled between a first fixed voltage and a internal node, a pull-down circuit coupled between the internal node and a second fixed voltage, and a low pass filter coupled between the internal node and the output node. The digital controller is powered by the DC output voltage and adjusts the DC output voltage by controlling the output stage. The controller controls a connection of a feedback path, comprising the digital controller, between the output node and the control terminal according to the DC output voltage.
    • DC-DC转换器,在输出节点提供直流输出电压。 DC-DC转换器包括输出级,数字控制器和控制器。 输出级包括具有控制端并耦合在第一固定电压和内部节点之间的上拉电路,耦合在内部节点和第二固定电压之间的下拉电路以及耦合在内部节点之间的低通滤波器 节点和输出节点。 数字控制器由直流输出电压供电,通过控制输出级调节直流输出电压。 控制器根据直流输出电压控制包括数字控制器的反馈路径在输出节点和控制终端之间的连接。
    • 6. 发明申请
    • Power tool with circuit protection capability
    • 具有电路保护功能的电动工具
    • US20070139847A1
    • 2007-06-21
    • US11603421
    • 2006-11-21
    • Chang-Shin Liu
    • Chang-Shin Liu
    • H01H73/00
    • B25F5/00
    • A power tool includes a battery-operated power supplying unit adapted to be connected to a battery unit and to generate battery status information, a driving unit adapted to be coupled to a tool bit, a protection unit for making and breaking an electrical circuit between the power supplying unit and the driving unit, a user-actuated unit for enabling operation of the protection unit to make the electrical circuit, and a control unit for enabling operation of the protection unit to break the electrical circuit when the control unit detects an abnormal condition from the battery status information.
    • 电动工具包括电池供电单元,其适于连接到电池单元并产生电池状态信息;驱动单元,其适于联接到工具位;保护单元,用于在第 供电单元和驱动单元,用于使保护单元能够进行电路的用户致动单元;以及控制单元,用于当控制单元检测到异常状况时使保护单元能够断开电路的操作 从电池状态信息。
    • 9. 发明授权
    • Phase lock loop circuits
    • 锁相环电路
    • US08169265B2
    • 2012-05-01
    • US12431842
    • 2009-04-29
    • Shiue-Shin Liu
    • Shiue-Shin Liu
    • H03L7/00
    • H03L7/0893H03L7/093H03L7/099H03L2207/06
    • A phase lock loop circuit is provided. A phase frequency detector detects a phase difference between a feedback signal and a reference signal, and generates a phase error signal in response to the detected phase difference. A charge pump consists of at least one core device and outputs a current signal based on the phase error signal. An active loop filter receives and transfers the current signal into a control signal. Operating voltage of the active loop filter is higher than operating voltage of the charge pump. A controlled oscillator receives the control signal and generates an output signal in response to the control signal. A feedback divider receives the output signal to generate the feedback signal.
    • 提供锁相环电路。 相位频率检测器检测反馈信号和参考信号之间的相位差,并且响应于检测到的相位差产生相位误差信号。 电荷泵由至少一个核心装置组成,并根据相位误差信号输出电流信号。 有源环路滤波器接收并将当前信号传送到控制信号中。 有源环路滤波器的工作电压高于电荷泵的工作电压。 控制振荡器接收控制信号并响应于控制信号产生输出信号。 反馈分频器接收输出信号以产生反馈信号。