公开(公告)号：US07279875B2

公开(公告)日：2007-10-09

申请号：US11452831

申请日：2006-06-13

申请人： Ge Gan ,  Steven Huynh

发明人： Ge Gan ,  Steven Huynh

IPC分类号： G05F1/40

CPC分类号： H02M3/1588 ,  Y02B70/1466

摘要： A hysteretic DC-DC converter is provided with high switching frequency, good load regulations, and fast load step response and in which the switching frequency is externally adjustable by a novel feedback network that enables substantial independence of duty cycle variation.

摘要翻译： 迟滞的DC-DC转换器具有高开关频率，良好的负载规则和快速负载阶跃响应，其中开关频率可通过新型反馈网络进行外部调节，从而实现占空比变化的实质性独立性。

公开(公告)号：US20070075695A1

公开(公告)日：2007-04-05

申请号：US11452831

申请日：2006-06-13

申请人： Ge Gan ,  Steven Huynh

发明人： Ge Gan ,  Steven Huynh

IPC分类号： G05F1/00

CPC分类号： H02M3/1588 ,  Y02B70/1466

摘要： A hysteretic DC-DC converter is provided with high switching frequency, good load regulations and fast load step response and in which the switching frequency is externally adjustable by a novel feedback network that enables substantial independence of duty cycle variation.

摘要翻译： 迟滞的DC-DC转换器具有高开关频率，良好的负载规则和快速负载阶跃响应，其中开关频率可以通过新的反馈网络进行外部调节，从而实现占空比变化的实质性独立性。

公开(公告)号：US08058858B2

公开(公告)日：2011-11-15

申请号：US12806624

申请日：2010-08-16

申请人： Ge Gan

发明人： Ge Gan

IPC分类号： G05F1/40

CPC分类号： H02M3/156 ,  H02M2001/0032 ,  Y02B70/16

摘要： A DC-to-DC converter comprises an error amplifier, a comparator, a PWM controller, a power switch unit, and a control signal monitoring circuit. The PWM controller receives a comparison signal from the comparator and generates a digital control signal that controls the power switch unit such that the DC-to-DC converter supplies a regulated voltage onto a load. The control signal monitoring circuit monitors the digital control signal and detects either a heavy load or a light load condition based on characteristics of the digital control signal. Under the light load condition, the monitoring circuit generates a first enabling signal such that the DC-to-DC controller operates in a power-save mode. Under the heavy load condition, the monitoring circuit generates a second enabling signal such that the DC-to-DC controller operates in a normal operation mode. The DC-to-DC converter consumes substantially less power in the power-save mode than in the normal operation mode.

摘要翻译： DC-DC转换器包括误差放大器，比较器，PWM控制器，功率开关单元和控制信号监视电路。 PWM控制器从比较器接收比较信号，并产生控制功率开关单元的数字控制信号，使得DC-DC转换器向负载提供调节电压。 控制信号监控电路监视数字控制信号，并根据数字控制信号的特性检测重负载或轻负载状况。 在轻负载状态下，监视电路产生第一使能信号，使DC-DC控制器工作在省电模式。 在重负载条件下，监视电路产生第二使能信号，使得DC-DC控制器在正常操作模式下操作。 DC-DC转换器在省电模式下比在正常工作模式下消耗的功率要小得多。

公开(公告)号：US07800351B2

公开(公告)日：2010-09-21

申请号：US12079257

申请日：2008-03-24

申请人： Ge Gan

发明人： Ge Gan

IPC分类号： G05F1/40

CPC分类号： H02M3/156 ,  H02M2001/0032 ,  Y02B70/16

摘要： A DC-to-DC converter comprises an error amplifier, a comparator, a PWM controller, a power switch unit, and a control signal monitoring circuit. The PWM controller receives a comparison signal from the comparator and generates a digital control signal that controls the power switch unit such that the DC-to-DC converter supplies a regulated voltage onto a load. The control signal monitoring circuit monitors the digital control signal and detects either a heavy load or a light load condition based on characteristics of the digital control signal. Under the light load condition, the monitoring circuit generates a first enabling signal such that the DC-to-DC controller operates in a power-save mode. Under the heavy load condition, the monitoring circuit generates a second enabling signal such that the DC-to-DC controller operates in a normal operation mode. The DC-to-DC converter consumes substantially less power in the power-save mode than in the normal operation mode.

摘要翻译： DC-DC转换器包括误差放大器，比较器，PWM控制器，功率开关单元和控制信号监视电路。 PWM控制器从比较器接收比较信号，并产生控制功率开关单元的数字控制信号，使得DC-DC转换器向负载提供调节电压。 控制信号监控电路监视数字控制信号，并根据数字控制信号的特性检测重负载或轻负载状况。 在轻负载状态下，监视电路产生第一使能信号，使DC-DC控制器工作在省电模式。 在重负载条件下，监视电路产生第二使能信号，使得DC-DC控制器在正常操作模式下操作。 DC-DC转换器在省电模式下比在正常工作模式下消耗的功率要小得多。

公开(公告)号：US20090237053A1

公开(公告)日：2009-09-24

申请号：US12079257

申请日：2008-03-24

申请人： Ge Gan

发明人： Ge Gan

IPC分类号： G05F1/00

CPC分类号： H02M3/156 ,  H02M2001/0032 ,  Y02B70/16

摘要： A DC-to-DC converter comprises an error amplifier, a comparator, a PWM controller, a power switch unit, and a control signal monitoring circuit. The PWM controller receives a comparison signal from the comparator and generates a digital control signal that controls the power switch unit such that the DC-to-DC converter supplies a regulated voltage onto a load. The control signal monitoring circuit monitors the digital control signal and detects either a heavy load or a light load condition based on characteristics of the digital control signal. Under the light load condition, the monitoring circuit generates a first enabling signal such that the DC-to-DC controller operates in a power-save mode. Under the heavy load condition, the monitoring circuit generates a second enabling signal such that the DC-to-DC controller operates in a normal operation mode. The DC-to-DC converter consumes substantially less power in the power-save mode than in the normal operation mode.

摘要翻译： DC-DC转换器包括误差放大器，比较器，PWM控制器，功率开关单元和控制信号监视电路。 PWM控制器从比较器接收比较信号，并产生控制功率开关单元的数字控制信号，使得DC-DC转换器向负载提供调节电压。 控制信号监控电路监视数字控制信号，并根据数字控制信号的特性检测重负载或轻负载状况。 在轻负载状态下，监视电路产生第一使能信号，使DC-DC控制器工作在省电模式。 在重负载条件下，监视电路产生第二使能信号，使得DC-DC控制器在正常操作模式下操作。 DC-DC转换器在省电模式下比在正常工作模式下消耗的功率要小得多。

公开(公告)号：US20100315054A1

公开(公告)日：2010-12-16

申请号：US12806624

申请日：2010-08-16

申请人： Ge Gan

发明人： Ge Gan

IPC分类号： G05F1/10

CPC分类号： H02M3/156 ,  H02M2001/0032 ,  Y02B70/16

摘要： A DC-to-DC converter comprises an error amplifier, a comparator, a PWM controller, a power switch unit, and a control signal monitoring circuit. The PWM controller receives a comparison signal from the comparator and generates a digital control signal that controls the power switch unit such that the DC-to-DC converter supplies a regulated voltage onto a load. The control signal monitoring circuit monitors the digital control signal and detects either a heavy load or a light load condition based on characteristics of the digital control signal. Under the light load condition, the monitoring circuit generates a first enabling signal such that the DC-to-DC controller operates in a power-save mode. Under the heavy load condition, the monitoring circuit generates a second enabling signal such that the DC-to-DC controller operates in a normal operation mode. The DC-to-DC converter consumes substantially less power in the power-save mode than in the normal operation mode.