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：US08611116B2

公开(公告)日：2013-12-17

申请号：US13193411

申请日：2011-07-28

申请人： Stefan Bäurle ,  Guangchao Darson Zhang ,  Arthur B. Odell ,  Mingming Mao ,  Michael Yue Zhang ,  Edward Deng

发明人： Stefan Bäurle ,  Guangchao Darson Zhang ,  Arthur B. Odell ,  Mingming Mao ,  Michael Yue Zhang ,  Edward Deng

IPC分类号： H02M3/335 ,  H02H7/122 ,  H02M1/00 ,  H02M7/757

CPC分类号： H02M3/33507 ,  H02M1/12

摘要： An example integrated circuit controller for use in a switching power supply includes a pulse width modulation (PWM) circuit and a timing circuit. The PWM circuit controls a switch to regulate an output of the 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 increases the switching period in response to an on time of the switch exceeding a threshold time.

摘要翻译： 用于开关电源的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响应于开关的接通时间超过阈值时间而增加开关周期。

公开(公告)号：US08531853B2

公开(公告)日：2013-09-10

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： H02M3/335 ,  H02M1/00 ,  H02M7/757 ,  H02H7/122

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：US20130027990A1

公开(公告)日：2013-01-31

申请号：US13193411

申请日：2011-07-28

申请人： Stefan Bäurle ,  Guangchao Darson Zhang ,  Arthur B. Odell ,  Mingming Mao ,  Michael Yue Zhang ,  Edward Deng

发明人： Stefan Bäurle ,  Guangchao Darson Zhang ,  Arthur B. Odell ,  Mingming Mao ,  Michael Yue Zhang ,  Edward Deng

IPC分类号： H02M3/335

CPC分类号： H02M3/33507 ,  H02M1/12

摘要： An example integrated circuit controller for use in a switching power supply includes a pulse width modulation (PWM) circuit and a timing circuit. The PWM circuit controls a switch to regulate an output of the 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 increases the switching period in response to an on time of the switch exceeding a threshold time.

摘要翻译： 用于开关电源的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，并响应于开关的接通时间超过阈值时间而增加开关周期。

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：US20120320640A1

公开(公告)日：2012-12-20

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。