公开(公告)号：US20150177758A1

公开(公告)日：2015-06-25

申请号：US14556110

申请日：2014-11-29

申请人： JE-KOOK KIM ,  SANG-YONG PARK ,  CHAN-WOO PARK ,  YOUNG-HOON LEE ,  BYEONG-HA PARK

发明人： JE-KOOK KIM ,  SANG-YONG PARK ,  CHAN-WOO PARK ,  YOUNG-HOON LEE ,  BYEONG-HA PARK

IPC分类号： G05F1/575

CPC分类号： G05F1/575

摘要： 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.

摘要翻译： 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。