公开(公告)号：US07795854B2

公开(公告)日：2010-09-14

申请号：US12015917

申请日：2008-01-17

申请人： Chun-Hua Xia ,  Xiao-Ru Wu ,  Li Zeng ,  Da-Wei Hu ,  Shih-Hao Liu

发明人： Chun-Hua Xia ,  Xiao-Ru Wu ,  Li Zeng ,  Da-Wei Hu ,  Shih-Hao Liu

IPC分类号： G05F1/40

CPC分类号： H02M3/156

摘要： A voltage regulating circuit including an error signal generator, a comparator, a switch unit, a low-pass filter and a modulating unit is provided. The error signal generator respectively receives a reference voltage signal and a feedback signal, and generates an error signal. The comparator respectively receives the error signal and a comparing signal, and generates a pulse width modulation signal. The switch unit regulates an input voltage signal to generate an output voltage signal according the pulse width modulation signal. The low-pass filter filters out the high frequency of the output signal and produces the feedback signal. The modulating unit is coupled to the low-pass filter and the error signal generator for regulating a transient voltage of the output voltage signal.

摘要翻译： 提供了包括误差信号发生器，比较器，开关单元，低通滤波器和调制单元的电压调节电路。 误差信号发生器分别接收参考电压信号和反馈信号，并产生误差信号。 比较器分别接收误差信号和比较信号，并产生脉宽调制信号。 开关单元调节输入电压信号以根据脉宽调制信号产生输出电压信号。 低通滤波器滤除输出信号的高频，并产生反馈信号。 调制单元耦合到低通滤波器和误差信号发生器，用于调节输出电压信号的瞬态电压。

公开(公告)号：US20090146627A1

公开(公告)日：2009-06-11

申请号：US12015917

申请日：2008-01-17

申请人： Chun-Hua Xia ,  Xiao-Ru Wu ,  Li Zeng ,  Da-Wei Hu ,  Shih-Hao Liu

发明人： Chun-Hua Xia ,  Xiao-Ru Wu ,  Li Zeng ,  Da-Wei Hu ,  Shih-Hao Liu

IPC分类号： G05F1/00

CPC分类号： H02M3/156

摘要： A voltage regulating circuit including an error signal generator, a comparator, a switch unit, a low-pass filter and a modulating unit is provided. The error signal generator respectively receives a reference voltage signal and a feedback signal, and generates an error signal. The comparator respectively receives the error signal and a comparing signal, and generates a pulse width modulation signal. The switch unit regulates an input voltage signal to generate an output voltage signal according the pulse width modulation signal. The low-pass filter filters out the high frequency of the output signal and produces the feedback signal. The modulating unit is coupled to the low-pass filter and the error signal generator for regulating a transient voltage of the output voltage signal.

摘要翻译： 提供了包括误差信号发生器，比较器，开关单元，低通滤波器和调制单元的电压调节电路。 误差信号发生器分别接收参考电压信号和反馈信号，并产生误差信号。 比较器分别接收误差信号和比较信号，并产生脉宽调制信号。 开关单元调节输入电压信号以根据脉宽调制信号产生输出电压信号。 低通滤波器滤除输出信号的高频，并产生反馈信号。 调制单元耦合到低通滤波器和误差信号发生器，用于调节输出电压信号的瞬态电压。