公开(公告)号：US08437154B2

公开(公告)日：2013-05-07

申请号：US13404972

申请日：2012-02-24

申请人： Stefan Bäurle ,  Zhao-Jun Wang

发明人： Stefan Bäurle ,  Zhao-Jun Wang

IPC分类号： H02M3/335

CPC分类号： H02M3/33507 ,  H02M3/335 ,  H02M2001/0022

摘要： An example power supply controller includes a switch duty cycle controller coupled to receive a feedback signal and a duty cycle adjust signal. The switch duty cycle controller is coupled to generate a drive signal coupled to control switching of a switch, which is coupled to an energy transfer element, to regulate energy delivered from an input of a power supply to an output of the power supply. The power supply controller also includes a gain selector circuit coupled to receive an input voltage signal, which is representative of an input voltage to the power supply, to generate the duty cycle adjust signal received by the switch duty cycle controller. The duty cycle of the drive signal to be varied in response to a plurality of linear functions over a range of values of the input voltage signal.

摘要翻译： 示例性电源控制器包括耦合以接收反馈信号和占空比调整信号的开关占空比控制器。 开关占空比控制器被耦合以产生耦合以控制耦合到能量传递元件的开关的切换的驱动信号，以调节从电源的输入到电源的输出的能量。 电源控制器还包括一个增益选择器电路，其被耦合以接收表示到电源的输入电压的输入电压信号，以产生由开关占空比控制器接收的占空比调整信号。 驱动信号的占空比响应于输入电压信号的值的范围上的多个线性函数而变化。

公开(公告)号：US08243480B2

公开(公告)日：2012-08-14

申请号：US13213898

申请日：2011-08-19

申请人： Zhao-Jun Wang ,  Stefan Bäurle ,  David Michael Hugh Matthews

发明人： Zhao-Jun Wang ,  Stefan Bäurle ,  David Michael Hugh Matthews

IPC分类号： H02H7/122

CPC分类号： H02M3/33523 ,  H02M1/32 ,  H02M3/33507

摘要： An example power supply controller includes a regulation circuit, a current sense circuit, and a response circuit. The regulation circuit is coupled to regulate a sense terminal to a voltage level. The current sense circuit is coupled to the sense terminal to sense a current through the sense terminal a measurement delay period after a magnitude of the current through the sense terminal reaches a first threshold current level. The response circuit is coupled to the sense circuit and is responsive to the current through the sense terminal only after the measurement delay period.

摘要翻译： 示例性电源控制器包括调节电路，电流检测电路和响应电路。 调节电路被耦合以将感测端子调节到电压电平。 电流感测电路耦合到感测端子，以在通过感测端子的电流的大小达到第一阈值电流水平之后感测通过感测端子的电流测量延迟周期。 响应电路耦合到感测电路，并且仅在测量延迟周期之后才响应于通过感测端子的电流。

公开(公告)号：US08582327B2

公开(公告)日：2013-11-12

申请号：US13553730

申请日：2012-07-19

申请人： Zhao-Jun Wang ,  Stefan Bäurle ,  David Michael Hugh Matthews

发明人： Zhao-Jun Wang ,  Stefan Bäurle ,  David Michael Hugh Matthews

IPC分类号： H02M3/335

CPC分类号： H02M3/33523 ,  H02M1/32 ,  H02M3/33507

摘要： A method, in a power supply controller, of responding to an increase in current through a terminal of the power supply controller, is disclosed. The method includes regulating the terminal to a first voltage level and sensing a magnitude of a first current through the terminal while the controller is regulating the terminal to the first voltage level. The method also includes providing an initial response by the power supply controller in response to the magnitude of the first current exceeding a first threshold current level and then regulating the terminal to a second voltage level after the magnitude of the first current exceeds the first threshold current level. The magnitude of a second current through the terminal is sensed while the controller is regulating the terminal to the second voltage level and the controller determines a final response based on the magnitude of the second current.

摘要翻译： 公开了一种在电源控制器中响应于通过电源控制器的端子的电流增加的方法。 该方法包括：当控制器将端子调节到第一电压电平时，将端子调节到第一电压电平并感测通过端子的第一电流的幅度。 该方法还包括响应于超过第一阈值电流电平的第一电流的幅度提供电源控制器的初始响应，然后在第一电流的幅度超过第一阈值电流之后将端子调节到第二电压电平 水平。 当控制器将端子调节到第二电压电平时，感测通过端子的第二电流的大小，并且控制器基于第二电流的大小来确定最终响应。

公开(公告)号：US20120163041A1

公开(公告)日：2012-06-28

申请号：US13404972

申请日：2012-02-24

申请人： Stefan Bäurle ,  Zhao-Jun Wang

发明人： Stefan Bäurle ,  Zhao-Jun Wang

IPC分类号： H02M3/335

CPC分类号： H02M3/33507 ,  H02M3/335 ,  H02M2001/0022

摘要： An example power supply controller includes a switch duty cycle controller coupled to receive a feedback signal and a duty cycle adjust signal. The switch duty cycle controller is coupled to generate a drive signal coupled to control switching of a switch, which is coupled to an energy transfer element, to regulate energy delivered from an input of a power supply to an output of the power supply. The power supply controller also includes a gain selector circuit coupled to receive an input voltage signal, which is representative of an input voltage to the power supply, to generate the duty cycle adjust signal received by the switch duty cycle controller. The duty cycle of the drive signal to be varied in response to a plurality of linear functions over a range of values of the input voltage signal.

摘要翻译： 示例性电源控制器包括耦合以接收反馈信号和占空比调整信号的开关占空比控制器。 开关占空比控制器被耦合以产生耦合以控制耦合到能量传递元件的开关的切换的驱动信号，以调节从电源的输入到电源的输出的能量。 电源控制器还包括一个增益选择器电路，其被耦合以接收表示到电源的输入电压的输入电压信号，以产生由开关占空比控制器接收的占空比调整信号。 驱动信号的占空比响应于输入电压信号的值的范围上的多个线性函数而变化。

公开(公告)号：US20110299306A1

公开(公告)日：2011-12-08

申请号：US13213898

申请日：2011-08-19

申请人： Zhao-Jun Wang ,  Stefan Bäurle ,  David Michael Hugh Matthews

发明人： Zhao-Jun Wang ,  Stefan Bäurle ,  David Michael Hugh Matthews

IPC分类号： H02M3/335

CPC分类号： H02M3/33523 ,  H02M1/32 ,  H02M3/33507

摘要： An example power supply controller includes a regulation circuit, a current sense circuit, and a response circuit. The regulation circuit is coupled to regulate a sense terminal to a voltage level. The current sense circuit is coupled to the sense terminal to sense a current through the sense terminal a measurement delay period after a magnitude of the current through the sense terminal reaches a first threshold current level. The response circuit is coupled to the sense circuit and is responsive to the current through the sense terminal only after the measurement delay period.

摘要翻译： 示例性电源控制器包括调节电路，电流检测电路和响应电路。 调节电路被耦合以将感测端子调节到电压电平。 电流感测电路耦合到感测端子，以在通过感测端子的电流的大小达到第一阈值电流水平之后感测通过感测端子的电流测量延迟周期。 响应电路耦合到感测电路，并且仅在测量延迟周期之后才响应于通过感测端子的电流。

公开(公告)号：US07576528B2

公开(公告)日：2009-08-18

申请号：US11543506

申请日：2006-10-04

申请人： Zhao-Jun Wang ,  Stefan Bäurle ,  David Michael Hugh Matthews

发明人： Zhao-Jun Wang ,  Stefan Bäurle ,  David Michael Hugh Matthews

IPC分类号： G05F1/00

CPC分类号： H02M3/33523 ,  H02M1/32 ,  H02M3/33507

摘要： A power supply controller measuring impedance includes a sense circuit coupled to a sense terminal. A regulation circuit is coupled to the sense circuit and is also coupled to regulate the sense terminal to a first voltage level when a current flowing through the sense terminal is less than a first threshold current level. The regulation circuit is further coupled to regulate the sense terminal to a second voltage level when the current flowing through the sense terminal reaches the first threshold current level. A response circuit is coupled to the sense circuit and is responsive to the current flowing through the sense terminal when the sense terminal is regulated at the second voltage level.

摘要翻译： 测量阻抗的电源控制器包括耦合到感测端子的感测电路。 调节电路耦合到感测电路，并且还耦合以当流过感测端子的电流小于第一阈值电流电平时将感测端子调节到第一电压电平。 当流过感测端的电流达到第一阈值电流电平时，调节电路还被耦合以将感测端子调节到第二电压电平。 响应电路耦合到感测电路，并且当感测端子被调节在第二电压电平时响应于流过感测端子的电流。

公开(公告)号：US08148968B2

公开(公告)日：2012-04-03

申请号：US12369590

申请日：2009-02-11

申请人： Stefan Bäurle ,  Zhao-Jun Wang

发明人： Stefan Bäurle ,  Zhao-Jun Wang

IPC分类号： G05F5/00 ,  G05F5/08 ,  H02M3/335 ,  H02M3/338

CPC分类号： H02M3/33507 ,  H02M3/335 ,  H02M2001/0022

摘要： An apparatus and method of switching a switch of a power supply in response to an input voltage signal are disclosed. According to aspects of the present invention, a power supply controller includes a switch duty cycle controller coupled to receive a feedback signal and a duty cycle adjust signal. The switch duty cycle controller is coupled to generate a drive signal coupled to control switching of a switch, which is coupled to an energy transfer element, to regulate energy delivered from an input of a power supply to an output of the power supply. The power supply controller also includes a gain selector circuit coupled to receive an input voltage signal, which is representative of an input voltage to the power supply, to generate the duty cycle adjust signal received by the switch duty cycle controller. The maximum duty cycle of the drive signal to be varied in response to a plurality of linear functions over a range of values of the input voltage signal.

摘要翻译： 公开了一种响应于输入电压信号切换电源的开关的装置和方法。 根据本发明的方面，电源控制器包括耦合以接收反馈信号和占空比调整信号的开关占空比控制器。 开关占空比控制器被耦合以产生耦合以控制耦合到能量传递元件的开关的切换的驱动信号，以调节从电源的输入到电源的输出的能量。 电源控制器还包括一个增益选择器电路，其被耦合以接收表示到电源的输入电压的输入电压信号，以产生由开关占空比控制器接收的占空比调整信号。 驱动信号的最大占空比将响应于在输入电压信号的值的范围上的多个线性函数而变化。

公开(公告)号：US20120280666A1

公开(公告)日：2012-11-08

申请号：US13553730

申请日：2012-07-19

申请人： Zhao-Jun Wang ,  Stefan Bäurle ,  David Michael Hugh Matthews

发明人： Zhao-Jun Wang ,  Stefan Bäurle ,  David Michael Hugh Matthews

IPC分类号： G05F1/10

CPC分类号： H02M3/33523 ,  H02M1/32 ,  H02M3/33507

摘要： A method, in a power supply controller, of responding to an increase in current through a terminal of the power supply controller, is disclosed. The method includes regulating the terminal to a first voltage level and sensing a magnitude of a first current through the terminal while the controller is regulating the terminal to the first voltage level. The method also includes providing an initial response by the power supply controller in response to the magnitude of the first current exceeding a first threshold current level and then regulating the terminal to a second voltage level after the magnitude of the first current exceeds the first threshold current level. The magnitude of a second current through the terminal is sensed while the controller is regulating the terminal to the second voltage level and the controller determines a final response based on the magnitude of the second current.

摘要翻译： 公开了一种在电源控制器中响应于通过电源控制器的端子的电流增加的方法。 该方法包括：当控制器将端子调节到第一电压电平时，将端子调节到第一电压电平并感测通过端子的第一电流的幅度。 该方法还包括响应于超过第一阈值电流电平的第一电流的幅度提供电源控制器的初始响应，然后在第一电流的幅度超过第一阈值电流之后将端子调节到第二电压电平 水平。 当控制器将端子调节到第二电压电平时，感测通过端子的第二电流的大小，并且控制器基于第二电流的大小来确定最终响应。

公开(公告)号：US08004864B2

公开(公告)日：2011-08-23

申请号：US12497366

申请日：2009-07-02

申请人： Zhao-Jun Wang ,  Stefan Bäurle ,  David Michael Hugh Matthews

发明人： Zhao-Jun Wang ,  Stefan Bäurle ,  David Michael Hugh Matthews

IPC分类号： H02M3/335

CPC分类号： H02M3/33523 ,  H02M1/32 ,  H02M3/33507

摘要： An example power supply includes a controller and a detection circuit. The controller includes a sense terminal coupled to provide a sense terminal current representative of an input voltage of the power supply during normal operation. The detection circuit is external to the controller and is coupled to the sense terminal. The detection circuit includes a Zener diode coupled to conduct a current to adjust the sense terminal current during a fault condition, where during the fault condition the controller is responsive to a measured impedance of the detection circuit which is determined in response to the sense terminal current.

摘要翻译： 示例性电源包括控制器和检测电路。 控制器包括感测端子，其耦合以在正常操作期间提供代表电源的输入电压的感测端子电流。 检测电路在控制器的外部，并耦合到检测端子。 检测电路包括齐纳二极管，其耦合以在故障状态期间传导电流以调整感测端子电流，其中在故障状态期间，控制器响应于检测电路的测量阻抗，其响应于感测端子电流而确定 。

公开(公告)号：US07502236B2

公开(公告)日：2009-03-10

申请号：US11543527

申请日：2006-10-04

申请人： Stefan Bäurle ,  Zhao-Jun Wang

发明人： Stefan Bäurle ,  Zhao-Jun Wang

IPC分类号： H02M3/335

CPC分类号： H02M3/33507 ,  H02M3/335 ,  H02M2001/0022

摘要： An apparatus and method of switching a switch of a power supply in response to an input voltage signal are disclosed. According to aspects of the present invention, a power supply controller includes a switch duty cycle controller coupled to receive a feedback signal and a duty cycle adjust signal. The switch duty cycle controller is coupled to generate a drive signal coupled to control switching of a switch, which is coupled to an energy transfer element, to regulate energy delivered from an input of a power supply to an output of the power supply. The power supply controller also includes a gain selector circuit coupled to receive an input voltage signal, which is representative of an input voltage to the power supply, to generate the duty cycle adjust signal received by the switch duty cycle controller. The maximum duty cycle of the drive signal to be varied in response to a plurality of linear functions over a range of values of the input voltage signal.

摘要翻译： 公开了一种响应于输入电压信号切换电源的开关的装置和方法。 根据本发明的方面，电源控制器包括耦合以接收反馈信号和占空比调整信号的开关占空比控制器。 开关占空比控制器被耦合以产生耦合以控制耦合到能量传递元件的开关的切换的驱动信号，以调节从电源的输入到电源的输出的能量。 电源控制器还包括一个增益选择器电路，其被耦合以接收表示到电源的输入电压的输入电压信号，以产生由开关占空比控制器接收的占空比调整信号。 驱动信号的最大占空比将响应于在输入电压信号的值的范围上的多个线性函数而变化。