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1. 发明授权

US08988055B2 Digital windowing current-mode controller for a DC-DC converter 有权
标题翻译：用于DC-DC转换器的数字窗口电流模式控制器
公开(公告)号：US08988055B2
公开(公告)日：2015-03-24
申请号：US11573352
申请日：2005-07-27
申请人： Henricus C. J. Buthker , Lambert J. H. Folmer , Cornelis Stienstra
发明人： Henricus C. J. Buthker , Lambert J. H. Folmer , Cornelis Stienstra
IPC分类号： H02M3/157 , H02M3/156
CPC分类号： H02M3/156
摘要： A current-mode controlled power converter (1) comprises a controllable switch (S3) which is coupled to an inductor (L1) to obtain a periodical current (I1) through the inductor (L1). A current feedback loop (2, 3, 4, 5) generates a current-error signal (CE) which is a difference between a set current level (SC) and a level of a sensed current (SE) in the power converter (1). A driver (9) for switches off the controllable switch (S3) when the current error signal (CE) indicates that the level of the sensed current (SE) has reached the set current level (SC). A voltage feedback loop (10, 3, 7, 8, 5) influences the set current level (SC) in response to a level of an output voltage (Vout) of the power converter (1). The voltage feedback loop (10, 3, 7, 8, 5) comprises: a window circuit (10) to detect whether the output voltage (Vout) is (i) within a first window (WS) around a nominal value (Vr), (ii) outside the first window (WS) but within a second window (WL), larger than the first window (WS), (iii) outside the second window (WL). A controller (3) is coupled to the window circuit (10) to determine an adaptation of the set current level (SC), wherein the adaptation is larger when the output voltage (Vout) detected is outside the second window (WL) than when the output voltage (Vout) detected is within the second window (WL) but outside the first window (WS).
摘要翻译：电流模式控制功率转换器（1）包括可控开关（S3），其连接到电感器（L1）以获得通过电感器（L1）的周期性电流（I1）。电流反馈回路（2,3,4,5）产生电流误差信号（CE），其是功率转换器（1）中的设定电流电平（SC）和感测电流（SE）的电平之差）。当电流误差信号（CE）指示感测电流（SE）的电平达到设定电流电平（SC）时，用于关断可控开关（S3）的驱动器（9）。响应于功率转换器（1）的输出电压（Vout）的电平，电压反馈回路（10,3,7,8,5）影响设定电流电平（SC）。电压反馈回路（10,3,7,8,5）包括：窗口电路（10），用于检测在围绕标称值（Vr）的第一窗口（WS）内的输出电压（Vout）是否为（i），（ii）在第一窗口（WS）之外但在第二窗口（WL）内，大于第一窗口（WS），（iii）在第二窗口（WL）之外。控制器（3）耦合到窗口电路（10）以确定设定电流电平（SC）的适配，其中当检测到的输出电压（Vout）在第二窗口（WL）之外时，自适应大于当检测到的输出电压（Vout）在第二窗口（WL）内，但在第一窗口（WS）之外。

2. 发明授权

US07772810B2 DC-DC Converter with adaptive switching parameter adjustment 有权
标题翻译： DC-DC转换器，具有自适应开关参数调节功能
公开(公告)号：US07772810B2
公开(公告)日：2010-08-10
申请号：US11573353
申请日：2005-08-04
申请人： Henricus C. J. Buethker , Lambert J. H. Folmer , Cornelis Stienstra
发明人： Henricus C. J. Buethker , Lambert J. H. Folmer , Cornelis Stienstra
IPC分类号： G05F3/16 , G05F1/00
CPC分类号： H02M3/1582 , H02M2001/0012
摘要： A fully digital DC/DC automatic up/down converter circuit converts an input voltage to an output voltage of a predetermined value based on a switching operation. The switching operation includes switching operation comprise-cycles having at least one switching operation phase. The converter is controlled by a digital controller having a look-up table in which a plurality of data is stored. The digital controller uses certain data from the plurality of data with respect to an actual switched operating mode for continuously adjusting the begin and the end of a switching operation. The switched operating modes are a PWM and a PFM mode.
摘要翻译：全数字DC / DC自动上/下变换器电路基于切换操作将输入电压转换为预定值的输出电压。切换操作包括具有至少一个切换操作阶段的包括循环的切换操作。转换器由具有多个数据被存储在其中的查找表的数字控制器控制。数字控制器使用来自多个数据的某些数据相对于实际的切换操作模式来连续地调整开关操作的开始和结束。开关工作模式是PWM和PFM模式。

3. 发明申请

US20110204868A1 Digitally Controlling a DC-DC Converter 有权
标题翻译：数字控制DC-DC转换器
公开(公告)号：US20110204868A1
公开(公告)日：2011-08-25
申请号：US11573352
申请日：2005-07-27
申请人： Henricus C.J. Buthker , Lambert J.H. Folmer , Cornelis Stienstra
发明人： Henricus C.J. Buthker , Lambert J.H. Folmer , Cornelis Stienstra
IPC分类号： G05F1/618
CPC分类号： H02M3/156
摘要： A current-mode controlled power converter (1) comprises a controllable switch (S3) which is coupled to an inductor (L1) to obtain a periodical current (I1) through the inductor (L1). A current feedback loop (2, 3, 4, 5) generates a current-error signal (CE) which is a difference between a set current level (SC) and a level of a sensed current (SE) in the power converter (1). A driver (9) for switches off the controllable switch (S3) when the current error signal (CE) indicates that the level of the sensed current (SE) has reached the set current level (SC). A voltage feedback loop (10, 3, 7, 8, 5) influences the set current level (SC) in response to a level of an output voltage (Vout) of the power converter (1). The voltage feedback loop (10, 3, 7, 8, 5) comprises: a window circuit (10) to detect whether the output voltage (Vout) is (i) within a first window (WS) around a nominal value (Vr), (ii) outside the first window (WS) but within a second window (WL), larger than the first window (WS), (iii) outside the second window (WL). A controller (3) is coupled to the window circuit (10) to determine an adaptation of the set current level (SC), wherein the adaptation is larger when the output voltage (Vout) detected is outside the second window (WL) than when the output voltage (Vout) detected is within the second window (WL) but outside the first window (WS).
摘要翻译：电流模式控制功率转换器（1）包括可控开关（S3），其连接到电感器（L1）以获得通过电感器（L1）的周期性电流（I1）。电流反馈回路（2,3,4,5）产生电流误差信号（CE），其是功率转换器（1）中的设定电流电平（SC）和感测电流（SE）的电平之差）。当电流误差信号（CE）指示感测电流（SE）的电平达到设定电流电平（SC）时，用于关断可控开关（S3）的驱动器（9）。响应于功率转换器（1）的输出电压（Vout）的电平，电压反馈回路（10,3,7,8,5）影响设定电流电平（SC）。电压反馈回路（10,3,7,8,5）包括：窗口电路（10），用于检测在围绕标称值（Vr）的第一窗口（WS）内的输出电压（Vout）是否为（i），（ii）在第一窗口（WS）之外但在第二窗口（WL）内，大于第一窗口（WS），（iii）在第二窗口（WL）之外。控制器（3）耦合到窗口电路（10）以确定设定电流电平（SC）的适配，其中当检测到的输出电压（Vout）在第二窗口（WL）之外时，自适应大于当检测到的输出电压（Vout）在第二窗口（WL）内，但在第一窗口（WS）之外。

4. 发明申请

US20080169796A1 Dc-Dc Converter with Adaptive Switching Parameter Adjustment 有权
标题翻译： Dc-Dc转换器，具有自适应切换参数调整
公开(公告)号：US20080169796A1
公开(公告)日：2008-07-17
申请号：US11573353
申请日：2005-08-04
申请人： Henricus C.J. Buethker , Lambert J.H. Folmer , Cornelis Stienstra
发明人： Henricus C.J. Buethker , Lambert J.H. Folmer , Cornelis Stienstra
IPC分类号： G05F1/00
CPC分类号： H02M3/1582 , H02M2001/0012
摘要： The present invention relates to a fully digital DC/DC automatic up/down converter circuit (10) for converting an input voltage to an output voltage of a predetermined value based on a switching operation. The switching operation comprises switching operation cycles, which comprise at least one switching operation phase. The converter is controlled by digital controller (20), which comprises a look-up table in which a plurality of data is stored. The digital controller uses certain data from said plurality of data with respect to an actual switched operating mode for continuous adjusting begin and end of a switching operation. The switched operating modes are a PWM and a PFM mode. The converter is optimal for portable electronic equipment, which come with a battery pack for power supply. Advantageously, the converter of the invention provides a stable output voltage over the whole range of the input voltage supplied by such battery pack. Further, in most of these cases small ceramic capacitors can be used and there no further need for external components.
摘要翻译：本发明涉及一种用于基于切换操作将输入电压转换为预定值的输出电压的全数字DC / DC自动上变频电路（10）。开关操作包括开关操作周期，其包括至少一个开关操作阶段。转换器由数字控制器（20）控制，数字控制器（20）包括其中存储有多个数据的查找表。数字控制器使用来自所述多个数据的某些数据相对于实际的切换操作模式，用于连续地调整切换操作的开始和结束。开关工作模式是PWM和PFM模式。该转换器是便携式电子设备的最佳选择，该设备附带电源电池。有利地，本发明的转换器在由这种电池组提供的输入电压的整个范围内提供稳定的输出电压。此外，在大多数情况下，可以使用小型陶瓷电容器，并且不再需要外部元件。

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