公开(公告)号：US06946823B2

公开(公告)日：2005-09-20

申请号：US10846601

申请日：2004-05-17

申请人： Kent Huang ,  Liang-Pin Tai ,  Hung-I Wang ,  Jian-Rong Huang ,  Kuo-Ping Liu ,  Yu-Fan Liao

发明人： Kent Huang ,  Liang-Pin Tai ,  Hung-I Wang ,  Jian-Rong Huang ,  Kuo-Ping Liu ,  Yu-Fan Liao

IPC分类号： H02M3/158 ,  G05F1/575

CPC分类号： H02M3/1588 ,  Y02B70/1466

摘要： A delta-sigma DC-to-DC converter comprises a pair of high-side and low-side switches switched to convert an input voltage to an output voltage, a sense circuit to sense the output voltage of the converter to generate a feedback signal, a transconductive amplifier to amplify a difference between the feedback signal and a threshold signal to generate a differential current, a charging circuit connected with the differential current to generate a charging voltage, and a driver to compare the charging voltage with two reference signals to generate the pair of low-side and high-side driving signals.

摘要翻译： Δ-ΣDC-DC转换器包括一对开关将输入电压转换为输出电压的高侧和低侧开关，感测电路以感测转换器的输出电压以产生反馈信号， 用于放大反馈信号和阈值信号之间的差异以产生差分电流的跨导放大器，与差分电流连接以产生充电电压的充电电路，以及将充电电压与两个参考信号进行比较的驱动器，以产生 一对低侧和高侧驱动信号。

公开(公告)号：US07233134B2

公开(公告)日：2007-06-19

申请号：US10846569

申请日：2004-05-17

申请人： Kent Huang ,  Liang-Pin Tai ,  Hung-I Wang ,  Jian-Rong Huang ,  Kuo-Ping Liu ,  Yu-Fan Liao

发明人： Kent Huang ,  Liang-Pin Tai ,  Hung-I Wang ,  Jian-Rong Huang ,  Kuo-Ping Liu ,  Yu-Fan Liao

IPC分类号： G05F1/40

CPC分类号： H02M3/158

摘要： A DC-to-DC converter comprises a sense circuit to sense the output voltage of the converter to generate a feedback signal, a transconductive amplifier to amplify a difference between the feedback signal and a threshold signal to generate a first current and to generate a second current in response to a load transient, a charging circuit connected with the first current to generate a charging voltage, a driver to compare the charging voltage with two reference signals to generate a pair of low-side and high-side driving signals, and a fast response circuit to compare a load transient signal corresponding to the second current with a third reference signal to generate a bypass signal to drive the output stage of the converter in the load transient.

摘要翻译： DC-DC转换器包括用于感测转换器的输出电压以产生反馈信号的感测电路，用于放大反馈信号和阈值信号之间的差异的跨导放大器以产生第一电流并产生第二电流 响应于负载瞬变的电流，与第一电流连接以产生充电电压的充电电路，将充电电压与两个参考信号进行比较的驱动器，以产生一对低侧和高侧驱动信号，以及 快速响应电路，将与第二电流相对应的负载瞬态信号与第三参考信号进行比较，以产生旁路信号，以在负载瞬变中驱动转换器的输出级。

公开(公告)号：US06969980B1

公开(公告)日：2005-11-29

申请号：US10850164

申请日：2004-05-21

申请人： Liang-Pin Tai ,  Kent Hwang ,  Jian-Rong Huang ,  Kuo-Ping Liu ,  Cheng-Hsuan Fan ,  Ko-Cheng Wang ,  Yu-Fan Liao

发明人： Liang-Pin Tai ,  Kent Hwang ,  Jian-Rong Huang ,  Kuo-Ping Liu ,  Cheng-Hsuan Fan ,  Ko-Cheng Wang ,  Yu-Fan Liao

IPC分类号： G05F1/40 ,  G05F1/44 ,  H02M1/08

CPC分类号： H02M1/08

摘要： A pulse width modulator includes an amplifier module, a comparator module, and a filter module. The amplifier module receives a feedback voltage signal from a passive network, and generates first and second non-inverted voltage signals and first and second inverted voltage signals in response to the feedback voltage signal. The comparator module receives the first and second non-inverted voltage signals and the first and second inverted voltage signals, and provides first and second differential voltage signals corresponding to the first and second non-inverted voltage signals and the first and second inverted voltage signals. The filter module is coupled between the amplifier module and the comparator module, and is operable so as to attenuate high frequency components of the first and second non-inverted voltage signals. As such, the presence of noise in the feedback voltage signal does not affect differential operation of the comparator module.

摘要翻译： 脉冲宽度调制器包括放大器模块，比较器模块和滤波器模块。 放大器模块从无源网络接收反馈电压信号，并响应于反馈电压信号产生第一和第二非反相电压信号以及第一和第二反相电压信号。 比较器模块接收第一和第二非反相电压信号以及第一和第二反相电压信号，并提供对应于第一和第二非反相电压信号以及第一和第二反相电压信号的第一和第二差分电压信号。 滤波器模块耦合在放大器模块和比较器模块之间，并且可操作以便衰减第一和第二非反相电压信号的高频分量。 因此，反馈电压信号中的噪声的存在不会影响比较器模块的差分工作。

公开(公告)号：US20050258813A1

公开(公告)日：2005-11-24

申请号：US10850164

申请日：2004-05-21

申请人： Liang-Pin Tai ,  Kent Hwang ,  Jian-Rong Huang ,  Kuo-Ping Liu ,  Cheng-Hsuan Fan ,  Ko-Cheng Wang ,  Yu-Fan Liao

发明人： Liang-Pin Tai ,  Kent Hwang ,  Jian-Rong Huang ,  Kuo-Ping Liu ,  Cheng-Hsuan Fan ,  Ko-Cheng Wang ,  Yu-Fan Liao

IPC分类号： G05F1/40 ,  G05F1/44 ,  H02M1/08

CPC分类号： H02M1/08

摘要： A pulse width modulator includes an amplifier module, a comparator module, and a filter module. The amplifier module receives a feedback voltage signal from a passive network, and generates first and second non-inverted voltage signals and first and second inverted voltage signals in response to the feedback voltage signal. The comparator module receives the first and second non-inverted voltage signals and the first and second inverted voltage signals, and provides first and second differential voltage signals corresponding to the first and second non-inverted voltage signals and the first and second inverted voltage signals. The filter module is coupled between the amplifier module and the comparator module, and is operable so as to attenuate high frequency components of the first and second non-inverted voltage signals. As such, the presence of noise in the feedback voltage signal does not affect differential operation of the comparator module.

摘要翻译： 脉冲宽度调制器包括放大器模块，比较器模块和滤波器模块。 放大器模块从无源网络接收反馈电压信号，并响应于反馈电压信号产生第一和第二非反相电压信号以及第一和第二反相电压信号。 比较器模块接收第一和第二非反相电压信号以及第一和第二反相电压信号，并提供对应于第一和第二非反相电压信号以及第一和第二反相电压信号的第一和第二差分电压信号。 滤波器模块耦合在放大器模块和比较器模块之间，并且可操作以便衰减第一和第二非反相电压信号的高频分量。 因此，反馈电压信号中的噪声的存在不会影响比较器模块的差分工作。