公开(公告)号：US07714556B2

公开(公告)日：2010-05-11

申请号：US11892987

申请日：2007-08-29

申请人： Kwan-Jen Chu ,  Tzu-Huan Chiu ,  Nien-Hui Kung ,  Chien-Ping Lu

发明人： Kwan-Jen Chu ,  Tzu-Huan Chiu ,  Nien-Hui Kung ,  Chien-Ping Lu

IPC分类号： G05F1/40

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

摘要： A quick response switching regulator comprises a power stage having a pair of high-side switch and low-side switch and an inductor connected together by a switching node, a feedback circuit for producing a feedback signal, and a control circuit producing control signals with reference to the feedback signal to control the pair of high-side switch and low-side switch. The feedback circuit is connected to the switching node to shorten the feedback path and speed up the response. The control circuit further monitors the current flowing through the inductor to keep the low-side switch off before the peak of the inductor current becomes higher than a value.

摘要翻译： 快速响应开关调节器包括具有一对高侧开关和低侧开关的功率级以及由开关节点连接在一起的电感器，用于产生反馈信号的反馈电路以及产生具有参考的控制信号的控制电路 到反馈信号控制一对高侧开关和低侧开关。 反馈电路连接到交换节点以缩短反馈路径并加快响应。 控制电路进一步监测流经电感器的电流，以在电感电流峰值变得高于一个值之前保持低侧开关断开。

公开(公告)号：US20100052629A1

公开(公告)日：2010-03-04

申请号：US12588946

申请日：2009-11-03

申请人： Kwan-Jen Chu ,  Nien-Hui Kung ,  Tzu-Huan Chiu ,  Chien-Ping Lu

发明人： Kwan-Jen Chu ,  Nien-Hui Kung ,  Tzu-Huan Chiu ,  Chien-Ping Lu

IPC分类号： H02J3/00

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

摘要： A switching regulator includes a low-side switch having a body diode. During the low-side switch is on, a zero-current sense circuit monitors the inductor current of the switching regulator and triggers a signal to turn off the low-side switch when the inductor current falls down to a zero-current threshold, to prevent reverse inductor current from the output terminal of the switching regulator. A body-diode turn-on time controller monitors the turn-on time of the body diode and adjusts the zero-current threshold according thereto, and the turn-on time of the body diode can be reduced to an optimal interval subsequently. The self-adjustable zero-current threshold is adaptive according to the application conditions, such as the inductor size, input voltage and output voltage of the switching regulator.

公开(公告)号：US07652945B2

公开(公告)日：2010-01-26

申请号：US12078356

申请日：2008-03-31

申请人： Kwan-Jen Chu ,  Nien-Hui Kung ,  Tzu-Huan Chiu ,  Chien-Ping Lu

发明人： Kwan-Jen Chu ,  Nien-Hui Kung ,  Tzu-Huan Chiu ,  Chien-Ping Lu

IPC分类号： G11C5/14

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

摘要： A switching regulator includes a low-side switch having a body diode. During the low-side switch is on, a zero-current sense circuit monitors the inductor current of the switching regulator and triggers a signal to turn off the low-side switch when the inductor current falls down to a zero-current threshold, to prevent reverse inductor current from the output terminal of the switching regulator. A body-diode turn-on time controller monitors the turn-on time of the body diode and adjusts the zero-current threshold according thereto, and the turn-on time of the body diode can be reduced to an optimal interval subsequently. The self-adjustable zero-current threshold is adaptive according to the application conditions, such as the inductor size, input voltage and output voltage of the switching regulator.

摘要翻译： 开关调节器包括具有体二极管的低侧开关。 在低侧开关导通时，零电流检测电路监测开关稳压器的电感电流，并在电感电流下降到零电流阈值时触发信号关闭低边开关，以防止 反向电感电流从开关稳压器的输出端子。 体二极管导通时间控制器监视体二极管的接通时间并根据其调整零电流阈值，并且体二极管的接通时间可以随后降低到最佳间隔。 根据应用条件，自适应零电流阈值是自适应的，如开关稳压器的电感尺寸，输入电压和输出电压。

公开(公告)号：US20100072915A1

公开(公告)日：2010-03-25

申请号：US12384154

申请日：2009-04-01

申请人： Kwan-Jen Chu ,  Nien-Hui Kung ,  Tzu-Huan Chiu ,  Chien-Ping Lu

发明人： Kwan-Jen Chu ,  Nien-Hui Kung ,  Tzu-Huan Chiu ,  Chien-Ping Lu

IPC分类号： H05B39/04 ,  G05F1/00

CPC分类号： H05B33/0815 ,  Y02B20/346

摘要： The present invention discloses a boost driver circuit which converts an input voltage to an output voltage and supplies it to a load, the boost driver circuit comprising: a power transistor electrically connected with a node between the input voltage and the output voltage; a pulse width modulation driver circuit for controlling the operation of the power transistor; an output node electrically connected with the output voltage; a feedback node electrically connected with the load; a low voltage transistor electrically connected with the feedback node; and a clamp and fast discharge circuit electrically connected with the feedback node for discharging the feedback node when the voltage at the feedback node is higher than a predetermined voltage.

摘要翻译： 本发明公开了一种升压驱动器电路，其将输入电压转换为输出电压并将其提供给负载，该升压驱动电路包括：功率晶体管，其与输入电压和输出电压之间的节点电连接; 用于控制功率晶体管的操作的脉宽调制驱动电路; 与输出电压电连接的输出节点; 与负载电连接的反馈节点; 与所述反馈节点电连接的低压晶体管; 以及与反馈节点电连接的用于在反馈节点处的电压高于预定电压时对反馈节点放电的钳位和快速放电电路。

公开(公告)号：US07940596B2

公开(公告)日：2011-05-10

申请号：US12588946

申请日：2009-11-03

申请人： Kwan-Jen Chu ,  Nien-Hui Kung ,  Tzu-Huan Chiu ,  Chien-Ping Lu

发明人： Kwan-Jen Chu ,  Nien-Hui Kung ,  Tzu-Huan Chiu ,  Chien-Ping Lu

IPC分类号： G11C5/14

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

摘要： A switching regulator includes a low-side switch having a body diode. During the low-side switch is on, a zero-current sense circuit monitors the inductor current of the switching regulator and triggers a signal to turn off the low-side switch when the inductor current falls down to a zero-current threshold, to prevent reverse inductor current from the output terminal of the switching regulator. A body-diode turn-on time controller monitors the turn-on time of the body diode and adjusts the zero-current threshold according thereto, and the turn-on time of the body diode can be reduced to an optimal interval subsequently. The self-adjustable zero-current threshold is adaptive according to the application conditions, such as the inductor size, input voltage and output voltage of the switching regulator.

摘要翻译： 开关调节器包括具有体二极管的低侧开关。 在低侧开关导通时，零电流检测电路监测开关稳压器的电感电流，并在电感电流下降到零电流阈值时触发信号关闭低边开关，以防止 反向电感电流从开关稳压器的输出端子。 体二极管导通时间控制器监视体二极管的接通时间并根据其调整零电流阈值，并且体二极管的接通时间可以随后降低到最佳间隔。 根据应用条件，自适应零电流阈值是自适应的，如开关稳压器的电感尺寸，输入电压和输出电压。

公开(公告)号：US20080246455A1

公开(公告)日：2008-10-09

申请号：US12078356

申请日：2008-03-31

申请人： Kwan-Jen Chu ,  Nien-Hui Kung ,  Tzu-Huan Chiu ,  Chien-Ping Lu

发明人： Kwan-Jen Chu ,  Nien-Hui Kung ,  Tzu-Huan Chiu ,  Chien-Ping Lu

IPC分类号： G05F1/565

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

摘要： A switching regulator includes a low-side switch having a body diode. During the low-side switch is on, a zero-current sense circuit monitors the inductor current of the switching regulator and triggers a signal to turn off the low-side switch when the inductor current falls down to a zero-current threshold, to prevent reverse inductor current from the output terminal of the switching regulator. A body-diode turn-on time controller monitors the turn-on time of the body diode and adjusts the zero-current threshold according thereto, and the turn-on time of the body diode can be reduced to an optimal interval subsequently. The self-adjustable zero-current threshold is adaptive according to the application conditions, such as the inductor size, input voltage and output voltage of the switching regulator.

摘要翻译： 开关调节器包括具有体二极管的低侧开关。 在低侧开关导通时，零电流检测电路监测开关稳压器的电感电流，并在电感电流下降到零电流阈值时触发信号关闭低边开关，以防止 反向电感电流从开关稳压器的输出端子。 体二极管导通时间控制器监视体二极管的接通时间并根据其调整零电流阈值，并且体二极管的接通时间可以随后降低到最佳间隔。 根据应用条件，自适应零电流阈值是自适应的，如开关稳压器的电感尺寸，输入电压和输出电压。

公开(公告)号：US07994728B2

公开(公告)日：2011-08-09

申请号：US12384154

申请日：2009-04-01

申请人： Kwan-Jen Chu ,  Nien-Hui Kung ,  Tzu-Huan Chiu ,  Chien-Ping Lu

发明人： Kwan-Jen Chu ,  Nien-Hui Kung ,  Tzu-Huan Chiu ,  Chien-Ping Lu

IPC分类号： H05B37/00

CPC分类号： H05B33/0815 ,  Y02B20/346

摘要： The present invention discloses a boost driver circuit which converts an input voltage to an output voltage and supplies it to a load, the boost driver circuit comprising: a power transistor electrically connected with a node between the input voltage and the output voltage; a pulse width modulation driver circuit for controlling the operation of the power transistor; an output node electrically connected with the output voltage; a feedback node electrically connected with the load; a low voltage transistor electrically connected with the feedback node; and a clamp and fast discharge circuit electrically connected with the feedback node for discharging the feedback node when the voltage at the feedback node is higher than a predetermined voltage.

摘要翻译： 本发明公开了一种升压驱动器电路，其将输入电压转换为输出电压并将其提供给负载，该升压驱动电路包括：功率晶体管，其与输入电压和输出电压之间的节点电连接; 用于控制功率晶体管的操作的脉宽调制驱动电路; 与输出电压电连接的输出节点; 与负载电连接的反馈节点; 与所述反馈节点电连接的低压晶体管; 以及与反馈节点电连接的用于在反馈节点处的电压高于预定电压时对反馈节点放电的钳位和快速放电电路。

公开(公告)号：US20080174286A1

公开(公告)日：2008-07-24

申请号：US11892987

申请日：2007-08-29

申请人： Kwan-Jen Chu ,  Tzu-Huan Chiu ,  Nien-Hui Kung ,  Chien-Ping Lu

发明人： Kwan-Jen Chu ,  Tzu-Huan Chiu ,  Nien-Hui Kung ,  Chien-Ping Lu

IPC分类号： G05F1/00

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

摘要： A quick response switching regulator comprises a power stage having a pair of high-side switch and low-side switch and an inductor connected together by a switching node, a feedback circuit for producing a feedback signal, and a control circuit producing control signals with reference to the feedback signal to control the pair of high-side switch and low-side switch. The feedback circuit is connected to the switching node to shorten the feedback path and speed up the response. The control circuit further monitors the current flowing through the inductor to keep the low-side switch off before the peak of the inductor current becomes higher than a value.

摘要翻译： 快速响应开关调节器包括具有一对高侧开关和低侧开关的功率级以及由开关节点连接在一起的电感器，用于产生反馈信号的反馈电路以及产生具有参考的控制信号的控制电路 到反馈信号控制一对高侧开关和低侧开关。 反馈电路连接到交换节点以缩短反馈路径并加快响应。 控制电路进一步监测流经电感器的电流，以在电感电流峰值变得高于一个值之前保持低侧开关断开。

公开(公告)号：US08085014B2

公开(公告)日：2011-12-27

申请号：US12378494

申请日：2009-02-17

申请人： Nien-Hui Kung ,  Kwan-Jen Chu ,  Chun-Tsung Chen ,  Tzu-Huan Chiu

发明人： Nien-Hui Kung ,  Kwan-Jen Chu ,  Chun-Tsung Chen ,  Tzu-Huan Chiu

IPC分类号： G05F1/01

CPC分类号： H02M3/1584 ,  H03K17/063 ,  H03K17/122 ,  H03K17/302

摘要： The present invention discloses a dual power switch and a voltage regulator using the dual power switch. The dual power switch comprises a PMOS power switch and an NMOS power switch connected in parallel and operating according to corresponding predetermined conditions, respectively.

摘要翻译： 本发明公开了一种双电源开关和使用双电源开关的电压调节器。 双电源开关包括并联连接的PMOS电源开关和NMOS电源开关，并分别根据相应的预定条件操作。

公开(公告)号：US20090261654A1

公开(公告)日：2009-10-22

申请号：US12383403

申请日：2009-03-24

申请人： Tzu-Huan Chiu ,  Kwan-Jen Chu ,  Nien-Hui Kung

发明人： Tzu-Huan Chiu ,  Kwan-Jen Chu ,  Nien-Hui Kung

IPC分类号： H02J7/00

CPC分类号： H02J7/0068 ,  Y10T307/625 ,  Y10T307/944

摘要： The present invention provides a power path control circuit comprising: an input node for receiving an external power; a first power transistor electrically connected between the input node and a first node, for controlling power supplied from the input node to the first node; a second power transistor electrically connected between the first node and a battery, for controlling power supplied from the battery to the first node; an error amplifier including an output electrically connected with a gate of the second power transistor, a first input terminal electrically connected with the first node, and a second input terminal electrically connected with the battery, wherein a voltage difference is allocated between the two input terminals.

摘要翻译： 本发明提供了一种电源路径控制电路，包括：用于接收外部电源的输入节点; 电连接在输入节点和第一节点之间的第一功率晶体管，用于控制从输入节点向第一节点提供的功率; 电连接在第一节点和电池之间的用于控制从电池供应到第一节点的电力的第二功率晶体管; 误差放大器，包括与第二功率晶体管的栅极电连接的输出，与第一节点电连接的第一输入端子和与电池电连接的第二输入端子，其中在两个输入端子之间分配电压差 。