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11. 发明申请

US20090256544A1 METHOD AND APPARATUS TO LIMIT OUTPUT POWER IN A SWITCHING POWER SUPPLY 有权
标题翻译：限制开关电源输出功率的方法和装置
公开(公告)号：US20090256544A1
公开(公告)日：2009-10-15
申请号：US12488427
申请日：2009-06-19
申请人： Alex B. Djenguerian , Stefan Baurle , Kent Wong
发明人： Alex B. Djenguerian , Stefan Baurle , Kent Wong
IPC分类号： G05F1/573
CPC分类号： H02M3/33507 , H02M1/32
摘要： Techniques are disclosed to adjust a current limit in a switching regulator. One example switching regulator includes a comparator having first and second inputs and an output. The first input of the comparator is adapted to sense a current flow through a switch and the second input of the comparator is adapted to sense a variable current limit value. A controller is coupled to the output of the comparator and to the switch to control switching of the switch to regulate an output of a power supply in response a feedback signal. The controller disables the switch if the sensed current flow through the switch is greater than the sensed variable current limit value. The variable current limit value is set to a first variable current limit value by the controller in response to an input line voltage of the power supply if there is not an over current condition during a first switching cycle that occurs after a skipped switching cycle of the switch. The variable current limit value is set to a second variable current limit value by the controller in response to the input line voltage if there is the over current condition during the first switching cycle that occurs after the skipped switching cycle.
摘要翻译：公开了用于调节开关调节器中的电流限制的技术。一个示例开关调节器包括具有第一和第二输入和输出的比较器。比较器的第一输入适于感测通过开关的电流，并且比较器的第二输入适于感测可变电流限制值。控制器耦合到比较器和开关的输出端，以响应于反馈信号来控制开关的开关以调节电源的输出。如果检测到的电流流过开关，则控制器禁用开关大于检测到的可变电流限制值。如果在第一开关周期中没有过电流状态，则在可跳过的开关周期之后发生的可变电流限制值被控制器响应于电源的输入线电压而被设置为第一可变电流限制值开关。如果在跳过的开关周期之后发生的第一开关周期期间存在过电流状态，则控制器响应于输入线电压将可变电流限制值设置为第二可变电流限制值。

12. 发明申请

US20090251931A1 METHOD AND APPARATUS FOR CONDITIONAL RESPONSE TO A FAULT CONDITION IN A SWITCHING POWER SUPPLY 有权
标题翻译：开关电源故障状态条件响应的方法与装置
公开(公告)号：US20090251931A1
公开(公告)日：2009-10-08
申请号：US12413232
申请日：2009-03-27
申请人： Stefan Baurle , Alex B. Djenguerian , Kent Wong
发明人： Stefan Baurle , Alex B. Djenguerian , Kent Wong
IPC分类号： H02M3/335
CPC分类号： H02M1/32 , H02M3/33507
摘要： Techniques are disclosed to regulate an output of a power converter. One example power converter controller circuit includes a line sense input to be coupled to receive a signal representative of an input voltage of a power converter. A feedback input to be coupled to receive a feedback signal representative of an output of the power converter is also included. A drive signal generator is also included to generate a drive signal coupled to control switching of a switch to provide a regulated output parameter at the output of the power converter in response to the feedback signal. The drive signal generator is coupled to receive a plurality of inputs including the line sense input and the feedback input. The drive signal generator is coupled to latch the power converter into an off state in response to a detection of a fault condition in the power converter as detected by the plurality of inputs if the power converter input voltage is above a first threshold level. The drive signal generator to be unresponsive to the signal representative of the power converter input voltage while the controller is regulating the output parameter at the output of the power converter.
摘要翻译：公开了调节功率转换器的输出的技术。一个示例性功率转换器控制器电路包括要耦合以接收表示功率转换器的输入电压的信号的线路感测输入。还包括要耦合以接收表示功率转换器的输出的反馈信号的反馈输入。还包括驱动信号发生器以产生耦合以控制开关的开关的驱动信号，以响应于反馈信号在功率转换器的输出处提供稳定的输出参数。驱动信号发生器被耦合以接收包括线路感测输入和反馈输入的多个输入。如果功率转换器输入电压高于第一阈值电平，则驱动信号发生器被耦合以响应于由多个输入检测到的功率转换器中的故障状况的检测，将功率转换器锁存到断开状态。在控制器调节功率转换器输出端的输出参数时，驱动信号发生器对代表功率转换器输入电压的信号无响应。

13. 发明申请

US20070242488A1 Method and apparatus for conditional response to a fault condition in a switching power supply 失效
标题翻译：用于对开关电源中的故障状况进行条件响应的方法和装置
公开(公告)号：US20070242488A1
公开(公告)日：2007-10-18
申请号：US11811244
申请日：2007-06-07
申请人： Stefan Baurle , Alex Djenguerian , Kent Wong
发明人： Stefan Baurle , Alex Djenguerian , Kent Wong
IPC分类号： H02M3/335
CPC分类号： H02M1/32 , H02M3/33507
摘要： Techniques are disclosed to regulate an output of a power converter. One example power converter controller circuit includes a line sense input to be coupled to receive a signal representative of an input voltage of a power converter. A feedback input is included and is to be coupled to receive a feedback signal representative of an output of the power converter. A drive signal generator is included and is to generate a drive signal coupled to control switching of a switch to provide a regulated output parameter at the output of the power converter in response to the feedback signal. The drive signal generator is to latch the power converter into an off state in response to a detection of a loss of regulation of a power converter output parameter if the input voltage of the power converter is above a threshold level. The drive signal generator is to be unresponsive to the signal representative of the input voltage of the power converter while the power converter output parameter is in regulation.
摘要翻译：公开了调节功率转换器的输出的技术。一个示例性功率转换器控制器电路包括要耦合以接收表示功率转换器的输入电压的信号的线路感测输入。反馈输入被包括并且被耦合以接收表示功率转换器的输出的反馈信号。包括驱动信号发生器，并且产生耦合以控制开关的开关的驱动信号，以响应于反馈信号在功率转换器的输出处提供稳定的输出参数。如果功率转换器的输入电压高于阈值电平，则驱动信号发生器响应于检测到功率转换器输出参数的调节的损失而将功率转换器锁存到关闭状态。驱动信号发生器对代表功率转换器的输入电压的信号无响应，而功率转换器输出参数处于调节状态。

14. 发明申请

US20060098463A1 Method and apparatus to provide temporary peak power from a switching regulator 有权
公开(公告)号：US20060098463A1
公开(公告)日：2006-05-11
申请号：US10981959
申请日：2004-11-05
申请人： Stefan Baurle , William Polivka , David Michael Matthews
发明人： Stefan Baurle , William Polivka , David Michael Matthews
IPC分类号： H02M3/335
CPC分类号： H02M3/33507
摘要： Various techniques directed to providing temporary peak power from a switching regulator are disclosed. In one aspect, a switching regulator includes a switch that is to be coupled between a power supply input and an energy transfer element of the power supply. A controller is coupled to be responsive to a feedback signal to be received from an output of the power supply. The controller is coupled to switch the switch in response to the feedback signal to regulate the output of the power supply. An oscillator is coupled to provide an oscillating signal to the controller to determine a maximum switching frequency of the switch. The oscillating signal is coupled to oscillate at a first frequency under a first moderate load condition at the power supply output. The oscillating signal is coupled to oscillate at a second frequency under a second peak load condition at the power supply output.

15. 发明申请

US20090231888A1 METHOD AND APPARATUS FOR FAULT DETECTION IN A SWITCHING POWER SUPPLY 有权
标题翻译：一种开关电源故障检测方法及装置
公开(公告)号：US20090231888A1
公开(公告)日：2009-09-17
申请号：US12424302
申请日：2009-04-15
申请人： Stefan Baurle , William M. Polivka
发明人： Stefan Baurle , William M. Polivka
IPC分类号： H02M3/335
CPC分类号： H02M3/33507 , H02M1/32 , H02M1/36
摘要： Techniques are disclosed to detect a fault in the feedback circuit of a switching power supply while the power supply operates in a mode where the output is below its regulated value. The power supply delivers maximum power at a given switching frequency without a feedback signal while the output is below its regulated value. A fault protection circuit substantially reduces the average output power if there is no feedback signal for the duration of a fault time. When there is no feedback signal, the power supply increases the maximum output power by increasing the switching frequency before the end of the fault time to increase the output to a regulated value. The presence of a feedback signal when the output reaches a regulated value restores the original switching frequency and returns the output to its unregulated value. The absence of a feedback signal at the end of the fault time engages the fault protection circuit to substantially reduce the output power.
摘要翻译：公开了用于检测开关电源的反馈电路中的故障的技术，同时电源以输出低于其调节值的模式操作。电源在给定开关频率下提供最大功率，而无需反馈信号，而输出低于其调节值。如果在故障时间的持续时间内没有反馈信号，则故障保护电路大大降低了平均输出功率。当没有反馈信号时，电源通过在故障时间结束之前增加开关频率来增加最大输出功率，从而将输出增加到规定值。当输出达到规定值时反馈信号的存在恢复原始开关频率并将输出返回到其未调节值。在故障时间结束时没有反馈信号与故障保护电路相结合，从而显着降低输出功率。

16. 发明申请

US20090185396A1 METHOD AND APPARATUS FOR A CONTROL CIRCUIT WITH MULTIPLE OPERATING MODES 有权
标题翻译：具有多种操作模式的控制电路的方法和装置
公开(公告)号：US20090185396A1
公开(公告)日：2009-07-23
申请号：US12412122
申请日：2009-03-26
申请人： Stefan Baurle , Giao Pham
发明人： Stefan Baurle , Giao Pham
IPC分类号： H02M3/335
CPC分类号： H02M3/33515 , H02M3/33507
摘要： An apparatus of regulating a power converter with multiple operating modes includes a switch coupled to an energy transfer element coupled between an input and an output of the power converter. A control circuit is also included, which is coupled to the switch to control the switch. The control circuit includes first and second duty cycle control modes to regulate power delivered to the output of the power converter. A transition between the first and second duty cycle control modes is responsive to a magnitude of a current flowing in the switch reaching a current threshold value.
摘要翻译：调节具有多个操作模式的功率转换器的装置包括耦合到耦合在功率转换器的输入和输出之间的能量传递元件的开关。还包括控制电路，其耦合到开关以控制开关。控制电路包括第一和第二占空比控制模式以调节输送到功率转换器的输出端的功率。第一和第二占空比控制模式之间的转换响应于在开关中流动的电流的幅度达到当前阈值。

17. 发明申请

US20090096072A1 Package for a power semiconductor device 有权
标题翻译：功率半导体器件封装
公开(公告)号：US20090096072A1
公开(公告)日：2009-04-16
申请号：US11974553
申请日：2007-10-15
申请人： Balu Balakrishnan , Brad L. Hawthorne , Stefan Baurle
发明人： Balu Balakrishnan , Brad L. Hawthorne , Stefan Baurle
IPC分类号： H01L23/495 , H01L21/00
CPC分类号： H01L23/49562 , H01L21/565 , H01L23/3107 , H01L23/49537 , H01L23/49551 , H01L23/49575 , H01L24/97 , H01L2924/1306 , H01L2924/13091 , H01L2924/14 , H01L2924/181 , H01L2924/1815 , H01L2924/3011 , H01L2924/00
摘要： A package for a semiconductor die includes a die attach pad that provides an attachment surface area for the semiconductor die, and tie bars connected to the die attach pad. The die attach pad is disposed in a first general plane and the tie bars are disposed in a second general plane offset with respect to the first general plane. A molding compound encapsulates the semiconductor die in a form having first, second, third and fourth lateral sides, a top and a bottom. The tie bars are exposed substantially coincident with at least one of the lateral sides. The form includes a discontinuity that extends along the at least one of the lateral sides, the discontinuity increasing a creepage distance measured from the tie bars to the bottom of the package.
摘要翻译：用于半导体管芯的封装包括提供用于半导体管芯的附着表面区域的管芯附接焊盘和连接到管芯附接焊盘的连接条。管芯附接垫设置在第一总平面中，并且连接杆设置在相对于第一通用平面偏移的第二总平面中。模制化合物将半导体管芯封装成具有第一，第二，第三和第四横向侧面，顶部和底部的形式。连接条与至少一个横向侧面基本重合。该形式包括沿着至少一个横向侧面延伸的不连续性，不连续性增加了从连接条测量到爬行器底部的爬电距离。

18. 发明申请

US20070176589A1 Method and apparatus to limit output power in a switching power supply 失效
标题翻译：限制开关电源中的输出功率的方法和装置
公开(公告)号：US20070176589A1
公开(公告)日：2007-08-02
申请号：US11732209
申请日：2007-04-02
申请人： Alex Djenguerian , Stefan Baurle , Kent Wong
发明人： Alex Djenguerian , Stefan Baurle , Kent Wong
IPC分类号： G05F1/00
CPC分类号： H02M3/33507 , H02M1/32
摘要： Techniques are disclosed to adjust a current limit in a switching regulator. One example switching regulator includes a switch to be coupled to an energy transfer element of a power supply. A controller to generate a drive signal is coupled to control switching of the switch to regulate an output of the power supply. A current limiter is included in the controller to adjust the drive signal to limit a current though the switch to a variable current limit value. The variable current limit value is set by the current limiter in response to an input line voltage to be coupled to the energy transfer element.
摘要翻译：公开了用于调节开关调节器中的电流限制的技术。一个示例性开关调节器包括要耦合到电源的能量传递元件的开关。用于产生驱动信号的控制器被耦合以控制开关的切换以调节电源的输出。控制器中包含一个限流器，用于调节驱动信号，以将通过开关的电流限制在可变电流限制值。可变电流限制值由电流限制器响应于要耦合到能量传递元件的输入线电压而设置。

19. 发明申请

US20070007938A1 Method and apparatus to limit output power in a switching power supply 有权
公开(公告)号：US20070007938A1
公开(公告)日：2007-01-11
申请号：US11179144
申请日：2005-07-11
申请人： Alex Djenguerian , Stefan Baurle , Kent Wong
发明人： Alex Djenguerian , Stefan Baurle , Kent Wong
IPC分类号： G05F1/00
CPC分类号： H02M3/33507 , H02M1/32
摘要： Techniques are disclosed to adjust a current limit in a switching regulator. One example switching regulator includes a switch to be coupled to an energy transfer element of a power supply. A controller to generate a drive signal is coupled to control switching of the switch to regulate an output of the power supply. A current limiter is included in the controller to adjust the drive signal to limit a current though the switch to a variable current limit value. The variable current limit value is set by the current limiter in response to an input line voltage to be coupled to the energy transfer element.

20. 发明申请

US20080164858A1 METHOD AND APPARATUS TO LIMIT OUTPUT POWER IN A SWITCHING POWER SUPPLY 失效
标题翻译：限制开关电源输出功率的方法和装置
公开(公告)号：US20080164858A1
公开(公告)日：2008-07-10
申请号：US12052609
申请日：2008-03-20
申请人： Alex B. Djenguerian , Stefan Baurle , Kent Wong
发明人： Alex B. Djenguerian , Stefan Baurle , Kent Wong
IPC分类号： G05F1/00
CPC分类号： H02M3/33507 , H02M1/32
摘要： Techniques are disclosed to adjust a current limit in a switching regulator. One example switching regulator includes a comparator having first and second inputs and an output. The first input of the comparator is adapted to sense a current flow through a switch and the second input of the comparator is adapted to sense a variable current limit value. A controller is coupled to the output of the comparator and to the switch to control switching of the switch to regulate an output of a power supply in response a feedback signal. The controller disables the switch if the sensed current flow through the switch is greater than the sensed variable current limit value. The variable current limit value is set to a first variable current limit value by the controller in response to an input line voltage of the power supply if there is not an over current condition during a first switching cycle that occurs after a skipped switching cycle of the switch. The variable current limit value is set to a second variable current limit value by the controller in response to the input line voltage if there is the over current condition during the first switching cycle that occurs after the skipped switching cycle.
摘要翻译：公开了用于调节开关调节器中的电流限制的技术。一个示例开关调节器包括具有第一和第二输入和输出的比较器。比较器的第一输入适于感测通过开关的电流，并且比较器的第二输入适于感测可变电流限制值。控制器耦合到比较器和开关的输出端，以响应于反馈信号来控制开关的开关以调节电源的输出。如果检测到的电流流过开关，则控制器禁用开关大于检测到的可变电流限制值。如果在第一开关周期中没有过电流状态，则在可跳过的开关周期之后发生的可变电流限制值被控制器响应于电源的输入线电压而被设置为第一可变电流限制值开关。如果在跳过的开关周期之后发生的第一开关周期期间存在过电流状态，则控制器响应于输入线电压将可变电流限制值设置为第二可变电流限制值。

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