公开(公告)号：US07701190B2

公开(公告)日：2010-04-20

申请号：US11657003

申请日：2007-01-24

申请人： Jiun-Chiang Chen ,  Liang-Pin Tai

发明人： Jiun-Chiang Chen ,  Liang-Pin Tai

IPC分类号： G05F1/00

CPC分类号： H02M3/1584

摘要： For a DC-to-DC converter including a plurality of channels for converting an input voltage to an output voltage, a control circuit comprises a load transient detector to detect the output voltage to provide a quick response signal. In a load transient, the quick response signal triggers a quick transient response period to increase the operational frequency of the converter.

摘要翻译： 对于包括用于将输入电压转换为输出电压的多个通道的DC-DC转换器，控制电路包括检测输出电压以提供快速响应信号的负载瞬变检测器。 在负载瞬变中，快速响应信号触发快速的瞬态响应周期以增加转换器的工作频率。

公开(公告)号：US07474086B2

公开(公告)日：2009-01-06

申请号：US11583012

申请日：2006-10-19

申请人： Jiun-Chiang Chen ,  Liang-Pin Tai

发明人： Jiun-Chiang Chen ,  Liang-Pin Tai

IPC分类号： G05F1/40 ,  G05F1/56 ,  G05F1/618

CPC分类号： H02M3/156 ,  H02M3/1584 ,  H02M2001/0032 ,  Y02B70/16

摘要： A control circuit and method are provided to generate a modulation signal to operate a power stage in a DC/DC PWM converter such that the DC/DC PWM converter is controlled to operate with high switching frequency in light load stead state, once load transient happens, it still operates with high switching frequency for good transient response, and in heavy load stead state, it is controlled to operate with low switching frequency for good efficiency.

摘要翻译： 提供控制电路和方法来产生调制信号以在DC / DC PWM转换器中操作功率级，使得DC / DC PWM转换器被控制为在轻负载状态下以高开关频率工作，一旦发生负载瞬变 ，它仍然以高开关频率运行，具有良好的瞬态响应，并且在重负载状态下，它被控制为以低开关频率工作以获得高效率。

公开(公告)号：US20070176581A1

公开(公告)日：2007-08-02

申请号：US11657003

申请日：2007-01-24

申请人： Jiun-Chiang Chen ,  Liang-Pin Tai

发明人： Jiun-Chiang Chen ,  Liang-Pin Tai

IPC分类号： G05F1/00

CPC分类号： H02M3/1584

摘要： For a DC-to-DC converter including a plurality of channels for converting an input voltage to an output voltage, a control circuit comprises a load transient detector to detect the output voltage to provide a quick response signal. In a load transient, the quick response signal triggers a quick transient response period to increase the operational frequency of the converter.

摘要翻译： 对于包括用于将输入电压转换为输出电压的多个通道的DC-DC转换器，控制电路包括检测输出电压以提供快速响应信号的负载瞬变检测器。 在负载瞬变中，快速响应信号触发快速的瞬态响应周期以增加转换器的工作频率。

公开(公告)号：US20070252636A1

公开(公告)日：2007-11-01

申请号：US11822169

申请日：2007-07-03

申请人： Liang-Pin Tai ,  Jiun-Chiang Chen

发明人： Liang-Pin Tai ,  Jiun-Chiang Chen

IPC分类号： H03K17/687

CPC分类号： H03K17/6871 ,  H03K17/693

摘要： A switching circuit uses multiple common-drain JFETs to serve as the low-side switches of the switching circuit, and each of the low-side JFET is coupled between a high-side switch and a power node. Since a JFET can endure high voltage at both drain side and source side, and has good heat dissipation capability at drain side, the drain of the low-side JFET is coupled to the power node to enhance the heat dissipation capability and accordingly, all the low-side JFETs are allowed to be packaged in a same package to reduce the PCB layout area.

公开(公告)号：US20070241733A1

公开(公告)日：2007-10-18

申请号：US11583012

申请日：2006-10-19

申请人： Jiun-Chiang Chen ,  Liang-Pin Tai

发明人： Jiun-Chiang Chen ,  Liang-Pin Tai

IPC分类号： G05F1/00

CPC分类号： H02M3/156 ,  H02M3/1584 ,  H02M2001/0032 ,  Y02B70/16

摘要： A control circuit and method are provided to generate a modulation signal to operate a power stage in a DC/DC PWM converter such that the DC/DC PWM converter is controlled to operate with high switching frequency in light load stead state, once load transient happens, it still operates with high switching frequency for good transient response, and in heavy load stead state, it is controlled to operate with low switching frequency for good efficiency.

摘要翻译： 提供控制电路和方法来产生调制信号以在DC / DC PWM转换器中操作功率级，使得DC / DC PWM转换器被控制为在轻负载状态下以高开关频率工作，一旦发生负载瞬变 ，它仍然以高开关频率运行，具有良好的瞬态响应，并且在重负载状态下，它被控制为以低开关频率工作以获得高效率。

公开(公告)号：US07180278B2

公开(公告)日：2007-02-20

申请号：US11090179

申请日：2005-03-28

申请人： Liang-Pin Tai ,  Jiun-Chiang Chen

发明人： Liang-Pin Tai ,  Jiun-Chiang Chen

IPC分类号： G05F1/40

CPC分类号： H02M3/1588 ,  H02M2001/0009 ,  Y02B70/1466

摘要： A real current sense apparatus for a DC-to-DC converter uses a current mirror composed by two JFETs to mirror the output current of the converter to generate a temperature-independent mirror current to further generate a current sense signal. Due to the temperature-independence of the mirror current, the current sense signal is also temperature-independent.

摘要翻译： 用于DC-DC转换器的实际电流检测装置使用由两个JFET组成的电流镜来反映转换器的输出电流，以产生独立于温度的反射镜电流，以进一步产生电流检测信号。 由于镜电流的温度独立性，电流检测信号也与温度无关。

公开(公告)号：US07446591B2

公开(公告)日：2008-11-04

申请号：US11822169

申请日：2007-07-03

申请人： Liang-Pin Tai ,  Jiun-Chiang Chen

发明人： Liang-Pin Tai ,  Jiun-Chiang Chen

IPC分类号： H03K17/687

CPC分类号： H03K17/6871 ,  H03K17/693

摘要： A switching circuit uses multiple common-drain JFETs to serve as the low-side switches of the switching circuit, and each of the low-side JFET is coupled between a high-side switch and a power node. Since a JFET can endure high voltage at both drain side and source side, and has good heat dissipation capability at drain side, the drain of the low-side JFET is coupled to the power node to enhance the heat dissipation capability and accordingly, all the low-side JFETs are allowed to be packaged in a same package to reduce the PCB layout area.

摘要翻译： 开关电路使用多个公共漏极JFET作为开关电路的低侧开关，并且每个低侧JFET耦合在高侧开关和功率节点之间。 由于JFET可以在漏极侧和源极侧承受高电压，并且在漏极侧具有良好的散热能力，因此低边JFET的漏极耦合到电源节点以增强散热能力，因此， 低边JFET可以封装在相同的封装中，以减少PCB布局面积。

公开(公告)号：US07233133B2

公开(公告)日：2007-06-19

申请号：US11114060

申请日：2005-04-26

申请人： Liang-Pin Tai ,  Jiun-Chiang Chen

发明人： Liang-Pin Tai ,  Jiun-Chiang Chen

IPC分类号： G05F1/00

CPC分类号： H02M3/1584 ,  H02M2001/007

摘要： A two-step DC-to-DC converter comprises a first converter stage for converting a first voltage to a second voltage, and a second converter stage for converting the second voltage to an output voltage. The first converter stage uses a MOSFET or normally-off JFET to serve as a high-side switch, and the second converter stage comprises a multi-phase modulator using a normally-on JFET to serve as a high-side switch, thereby improving the efficiency of the two-step DC-to-DC converter.

摘要翻译： 两级DC-DC转换器包括用于将第一电压转换为第二电压的第一转换器级和用于将第二电压转换为输出电压的第二转换级。 第一转换器级使用MOSFET或常关JFET作为高侧开关，第二转换器级包括使用常导JFET作为高侧开关的多相调制器，从而改善 两级DC-DC转换器的效率。

公开(公告)号：US20060049815A1

公开(公告)日：2006-03-09

申请号：US11220561

申请日：2005-09-08

申请人： Hsin-Hsin Ho ,  Liang-Pin Tai ,  Hung-I Wang ,  Jian-Rong Huang ,  Jiun-Chiang Chen

发明人： Hsin-Hsin Ho ,  Liang-Pin Tai ,  Hung-I Wang ,  Jian-Rong Huang ,  Jiun-Chiang Chen

IPC分类号： G05F1/40

CPC分类号： H02M3/158 ,  H02M2001/0019

摘要： In a voltage regulator including an error amplifier to generate a first signal related to an output voltage of the voltage regulator, a current sense circuit to generate a second signal related to an inductor current of the voltage regulator, and a PWM comparator to generate a PWM signal in response to the first and second signals to regulate the output voltage, a current feed-through adaptive voltage position control comprises supplying ramp signal and offset signal to modify the PWM signal to thereby elliminate the offset of the output voltage.

摘要翻译： 在包括用于产生与电压调节器的输出电压相关的第一信号的误差放大器的电压调节器中，产生与电压调节器的电感器电流相关的第二信号的电流感测电路和用于产生PWM的PWM比较器 响应于第一和第二信号来调节输出电压的信号，电流馈通自适应电压位置控制包括提供斜坡信号和偏移信号以修改PWM信号，从而使输出电压的偏移得以净化。

公开(公告)号：US20050219926A1

公开(公告)日：2005-10-06

申请号：US11090179

申请日：2005-03-28

申请人： Liang-Pin Tai ,  Jiun-Chiang Chen

发明人： Liang-Pin Tai ,  Jiun-Chiang Chen

IPC分类号： G01R31/00 ,  G11C7/02 ,  H02M3/158

CPC分类号： H02M3/1588 ,  H02M2001/0009 ,  Y02B70/1466

摘要： A real current sense apparatus for a DC-to-DC converter uses a current mirror composed by two JFETs to mirror the output current of the converter to generate a temperature-independent mirror current to further generate a current sense signal. Due to the temperature-independence of the mirror current, the current sense signal is also temperature-independent.

摘要翻译： 用于DC-DC转换器的实际电流检测装置使用由两个JFET组成的电流镜来反映转换器的输出电流，以产生独立于温度的反射镜电流，以进一步产生电流检测信号。 由于镜电流的温度独立性，电流检测信号也与温度无关。