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    • 5. 发明授权
    • Low-dropout regulator, power management system, and method of controlling low-dropout voltage
    • 低压差稳压器,电源管理系统以及低压差电压控制方法
    • US09213347B2
    • 2015-12-15
    • US14556110
    • 2014-11-29
    • Je-Kook KimSang-Yong ParkChan-Woo ParkYoung-Hoon LeeByeong-Ha Park
    • Je-Kook KimSang-Yong ParkChan-Woo ParkYoung-Hoon LeeByeong-Ha Park
    • G05F1/575
    • G05F1/575
    • A low-dropout regulator comprises an analog-to-digital converter that converts a feedback analog voltage signal into a digital signal, a phase synthesizing unit that generates a first control signal having a pulse width corresponding to error information in the digital signal by performing phase synthesis according to clock skew control, a charge pump circuit that selects a charge loop or a discharge loop based on polarity information in the digital signal, and generates an output control voltage according to current that flows during a period corresponding to the pulse width of the first control signal in the selected loop, and an output circuit that generates an output voltage based on an input voltage and the output control voltage, and generates the feedback analog voltage signal based on the output voltage.
    • 低压差稳压器包括将反馈模拟电压信号转换为数字信号的模数转换器,相位合成单元,通过执行相位产生具有对应于数字信号中的误差信息的脉冲宽度的第一控制信号 根据时钟偏移控制进行合成的电荷泵电路,根据数字信号中的极性信息选择充电回路或放电回路的电荷泵电路,并根据在与脉冲宽度对应的周期期间流动的电流产生输出控制电压 所选择的回路中的第一控制信号,以及基于输入电压和输出控制电压产生输出电压的输出电路,并且基于输出电压生成反馈模拟电压信号。
    • 9. 发明授权
    • Movable grating control
    • 可移动光栅控制
    • US06945867B2
    • 2005-09-20
    • US10643180
    • 2003-08-19
    • Chan-Woo Park
    • Chan-Woo Park
    • F24F13/08F24F13/12F24F7/00
    • F24F13/082F24F13/12
    • A grating assembly drive means is connected to control the movement of the movable grating between OPEN and CLOSED positions relative to a fixed grating. The drive means moves the movable grating through yieldable connection when moving toward CLOSED position, whereby when such movement is blocked by a foreign object the movable grating stops without damaging the object or the drive. On the other hand movement by the drive means toward OPEN position is direct after removal of any slack caused by a previous yielding.
    • 光栅组件驱动装置被连接以控制可移动光栅相对于固定光栅的OPEN和CLOSED位置之间的移动。 驱动装置在朝着关闭位置移动可移动光栅通过可屈服连接时,由此当这种运动被异物阻挡时,可移动光栅停止而不损坏物体或驱动器。 另一方面,在去除由先前的屈服引起的任何松弛之后,驱动装置向OPEN位置的移动是直接的。