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。

公开(公告)号：US07049794B2

公开(公告)日：2006-05-23

申请号：US10986622

申请日：2004-11-12

申请人： Kent Wong ,  Arthur B. Odell ,  Stefan Bäurle

发明人： Kent Wong ,  Arthur B. Odell ,  Stefan Bäurle

IPC分类号： G05F1/652

CPC分类号： H02M1/32 ,  H02M3/156 ,  H02M2001/0009 ,  H02M2001/0025

摘要： A reduced cost voltage regulation circuit for switched mode power supplies. In one embodiment, a voltage regulation circuit includes a current sense circuit having a current sense terminal to conduct a current to be sensed by the current sense circuit. A voltage difference between the current sense terminal and a voltage reference terminal is substantially fixed when the current to be sensed by the current sense circuit is substantially equal to a first current sense threshold. The voltage regulation circuit also includes a first impedance coupled between the current sense terminal and the voltage reference terminal to provide a second current sense threshold. The second current sense threshold is equal to a sum of the first current sense threshold and a current to flow through the first impedance. The voltage regulation circuit further includes a second impedance coupled between the current sense terminal and an input terminal. The input terminal has a voltage threshold relative to the voltage reference terminal that is different from a voltage at the current sense terminal by an amount that is a product of the second impedance and the second current threshold.

摘要翻译： 用于开关式电源的降低成本的电压调节电路。 在一个实施例中，电压调节电路包括具有电流检测端子的电流检测电路，以传导由电流感测电路感测的电流。 当电流检测电路要感测的电流基本上等于第一电流检测阈值时，电流检测端子与电压参考端子之间的电压差基本上是固定的。 电压调节电路还包括耦合在电流检测端子和电压参考端子之间的第一阻抗以提供第二电流检测阈值。 第二电流检测阈值等于第一电流检测阈值和流过第一阻抗的电流之和。 电压调节电路还包括耦合在电流感测端子和输入端子之间的第二阻抗。 输入端子具有相对于电压参考端子的电压阈值，该电压阈值与电流检测端子处的电压不同于第二阻抗和第二电流阈值的乘积量。

公开(公告)号：US07368894B2

公开(公告)日：2008-05-06

申请号：US11336728

申请日：2006-01-20

申请人： Kent Wong ,  Arthur B. Odell ,  Stefan Bäurle

发明人： Kent Wong ,  Arthur B. Odell ,  Stefan Bäurle

IPC分类号： G05F1/10 ,  G05F1/652 ,  G05F1/613

CPC分类号： H02M1/32 ,  H02M3/156 ,  H02M2001/0009 ,  H02M2001/0025

摘要： A reduced cost voltage regulation circuit for switched mode power supplies. In one example, a current sense circuit includes a current sense terminal of a voltage regulation circuit. A voltage difference between the current sense terminal and a voltage reference terminal of the voltage regulation circuit is substantially fixed when a first current to be sensed by the current sense circuit at the current sense terminal is substantially equal to a first current sense threshold. A power transistor is also included and is coupled to the current sense circuit and coupled between a power supply input terminal of the voltage regulation circuit and a power supply output terminal of the voltage regulation circuit. The power transistor is coupled to be switched in response to the first current to be sensed by the current sense circuit at the current sense terminal to control a transfer of energy from the input of the power supply to the output of the power supply to regulate an output voltage of the power supply.

摘要翻译： 用于开关式电源的降低成本的电压调节电路。 在一个示例中，电流检测电路包括电压调节电路的电流检测端子。 当电流感测端子处的电流感测电路要感测的第一电流基本上等于第一电流检测阈值时，电流检测端子和电压调节电路的电压参考端子之间的电压差基本上是固定的。 还包括功率晶体管，并且耦合到电流感测电路并且耦合在电压调节电路的电源输入端子和电压调节电路的电源输出端子之间。 功率晶体管被耦合以响应于由电流感测端子处的电流感测电路感测的第一电流而被切换，以控制从电源的输入到电源的输出的能量传递，以调节 电源的输出电压。

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。