公开(公告)号：US08630103B2

公开(公告)日：2014-01-14

申请号：US13161092

申请日：2011-06-15

申请人： Stefan Bäurle ,  Guangchao Darson Zhang ,  Mingming Mao

发明人： Stefan Bäurle ,  Guangchao Darson Zhang ,  Mingming Mao

IPC分类号： H02M3/335

CPC分类号： H02M3/33515 ,  H02M3/33507 ,  H02M2001/0025

摘要： A power converter controller is disclosed. An example controller includes a control circuit coupled to receive a feedback signal representative of an output of the power converter. The control circuit coupled to control a switching of a power switch of the power converter in response to the feedback signal to control a transfer of energy from an input of the power converter to the output of the power converter. An internal programming interface circuit is coupled to the control circuit. A coupling switcher is coupled to the internal programming interface circuit. An external programming terminal is selectively coupled to the internal programming interface circuit through the coupling switcher. An external programming circuit coupled to the external programming terminal is coupled to the internal programming interface circuit through the coupling switcher during a startup programming condition and during a fault condition of the power converter. The external programming circuit that is coupled to the external programming terminal is decoupled from the internal programming interface circuit by the coupling switcher during a normal operating condition of the power converter.

摘要翻译： 公开了一种电力转换器控制器。 示例性控制器包括耦合以接收表示功率转换器的输出的反馈信号的控制电路。 控制电路被耦合以响应于反馈信号来控制功率转换器的功率开关的切换，以控制从功率转换器的输入到功率转换器的输出的能量传递。 内部编程接口电路耦合到控制电路。 耦合切换器耦合到内部编程接口电路。 外部编程终端通过耦合切换器选择性地耦合到内部编程接口电路。 耦合到外部编程终端的外部编程电路在启动编程状态期间和在功率转换器的故障状态期间通过耦合切换器耦合到内部编程接口电路。 耦合到外部编程终端的外部编程电路在功率转换器的正常工作状态期间通过耦合切换器与内部编程接口电路分离。

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：US20110273910A1

公开(公告)日：2011-11-10

申请号：US13184349

申请日：2011-07-15

申请人： Stefan Bäurle ,  Giao Pham

发明人： Stefan Bäurle ,  Giao Pham

IPC分类号： H02M3/335

CPC分类号： H02M3/33515 ,  H02M3/33507

摘要： An example controller for use in a power converter includes an oscillator and a logic circuit. The oscillator is to be coupled to a switch of the power converter and determines a switching cycle period of the switch. The logic circuit is also to be coupled to the switch to control a duty cycle of the switch in response to a magnitude of a feedback signal to regulate an output of the power converter. The logic circuit controls the duty cycle of the switch such that a control loop gain of the power converter is substantially constant during a transition of the controller between duty cycle control modes.

摘要翻译： 用于功率转换器的示例性控制器包括振荡器和逻辑电路。 振荡器将耦合到功率转换器的开关，并确定开关的开关周期周期。 逻辑电路还要耦合到开关，以响应于反馈信号的幅度来控制开关的占空比，以调节功率转换器的输出。 逻辑电路控制开关的占空比，使得在占空比控制模式之间的控制器转换期间，功率转换器的控制回路增益基本上恒定。

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：US20130027996A1

公开(公告)日：2013-01-31

申请号：US13193434

申请日：2011-07-28

申请人： Stefan Bäurle ,  Guangchao Darson Zhang ,  Arthur B. Odell ,  Edward Deng

发明人： Stefan Bäurle ,  Guangchao Darson Zhang ,  Arthur B. Odell ,  Edward Deng

IPC分类号： H02M1/00

CPC分类号： H02M3/33515 ,  H02M3/156 ,  H02M3/33507

摘要： An example integrated circuit controller includes a pulse width modulation (PWM) circuit and a timing circuit. The PWM circuit controls a switch to regulate an output of a power supply in response to a switch current flowing through the switch and in response to a clock signal having a switching period. The timing circuit provides the clock signal and includes a timing capacitor where the switching period of the clock signal is equal to a charging time that the timing capacitor charges to an upper reference voltage plus a discharging time that the timing capacitor discharges to a lower reference voltage. The timing circuit increases the charging time of the timing capacitor by decreasing a rate at which the timing capacitor is charged to increase the switching period of the clock signal if an on time of the switch is greater than or equal to a threshold time.

摘要翻译： 示例性集成电路控制器包括脉宽调制（PWM）电路和定时电路。 PWM电路控制开关以响应于流过开关的开关电流并且响应于具有开关周期的时钟信号来调节电源的输出。 定时电路提供时钟信号，并且包括定时电容器，其中时钟信号的开关周期等于定时电容器充电到较高参考电压加上定时电容器放电到较低参考电压的放电时间的充电时间 。 如果开关的接通时间大于或等于阈值时间，则定时电路通过降低定时电容器被充电的速率来增加定时电容器的充电时间，以增加时钟信号的开关周期。

公开(公告)号：US20120320634A1

公开(公告)日：2012-12-20

申请号：US13595605

申请日：2012-08-27

申请人： Stefan Bäurle ,  Giao Pham

发明人： Stefan Bäurle ,  Giao Pham

IPC分类号： H02M3/335

CPC分类号： H02M3/33515 ,  H02M3/33507

摘要： An example controller for use in a power converter includes an oscillator that is to be coupled to a switch of the power converter to determine a switching cycle period of the switch. The controller also includes means for controlling a duty cycle of the switch to regulate an output of the power converter and for maintaining a substantially constant rate of change of the duty cycle with respect to changes in a magnitude of a feedback signal as the controller transitions between duty cycle control modes such that a control loop gain of the power converter is substantially constant during the transition.

摘要翻译： 用于功率转换器的示例性控制器包括要耦合到功率转换器的开关以确定开关的开关周期周期的振荡器。 控制器还包括用于控制开关的占空比以调节功率转换器的输出的装置，并且用于当控制器在反馈信号的幅度之间转变时相对于反馈信号的幅度的变化保持占空比的基本上恒定的变化率 占空比控制模式，使得功率转换器的控制环路增益在转换期间基本上是恒定的。

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：US08143875B2

公开(公告)日：2012-03-27

申请号：US13180227

申请日：2011-07-11

申请人： Alex B. Djenguerian ,  Stefan Bäurle ,  Kent Wong

发明人： Alex B. Djenguerian ,  Stefan Bäurle ,  Kent Wong

IPC分类号： G05F1/575 ,  H02H7/122

CPC分类号： H02M3/33507 ,  H02M1/32

摘要： An example integrated circuit controller for a power supply includes a modulator, a drive signal generator, a comparator, and a variable current limit generator. The modulator generates an enable signal having logic states responsive to a feedback signal. The drive signal generator either enables or skips enabling a switch of the power supply during a switching period in response to the logic state of the enable signal. The comparator asserts an over current signal to disable the switch if current flowing through the switch exceeds a variable current limit. The variable current limit generator sets the variable current limit to a first current limit in response to one logic state of the enable signal during a switching period and sets the variable current limit to a second current limit if the enable signal transitions logic states and the over current signal is asserted during the switching period.

摘要翻译： 用于电源的示例集成电路控制器包括调制器，驱动信号发生器，比较器和可变电流限制发生器。 调制器产生具有响应于反馈信号的逻辑状态的使能信号。 驱动信号发生器响应于使能信号的逻辑状态，在切换周期期间启用或跳过使能电源的开关。 如果流过开关的电流超过可变电流限制，比较器将断开过电流信号以禁用开关。 可变电流限制发生器在开关周期期间响应于使能信号的一个逻辑状态将可变电流限制设置为第一电流限制，并且如果使能信号转换逻辑状态并将过流限制设置为第二电流限制，则将可变电流限制设置为第二电流限制 电流信号在开关周期内被断言。

公开(公告)号：US08000114B2

公开(公告)日：2011-08-16

申请号：US12412122

申请日：2009-03-26

申请人： Stefan Bäurle ,  Giao Pham

发明人： Stefan Bäurle ,  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。