公开(公告)号：US20110148379A1

公开(公告)日：2011-06-23

申请号：US12642542

申请日：2009-12-18

申请人： Yiding (Eric) Gu ,  Hong Ren

发明人： Yiding (Eric) Gu ,  Hong Ren

IPC分类号： G05F1/618

CPC分类号： H02M3/158 ,  H02M3/156 ,  H02M2001/0003

摘要： A valley current mode DC-to-DC converter may include an electronic control system configured to cause the DC-to-DC converter to operate under a continuous current mode and a discontinuous current mode. The electronic control system may include a current sensing system configured to sense current traveling through an inductance, a dual threshold generator configured to generate a first and a different second threshold, and a comparator system configured to compare current sensed by the current sensing system with the first threshold when the DC-to-DC converter is operating in the continuous current mode and with the second threshold when the DC-to-DC converter is operating in the discontinuous current mode.

摘要翻译： 谷值电流模式DC-DC转换器可以包括被配置为使得DC-DC转换器在连续电流模式和不连续电流模式下操作的电子控制系统。 电子控制系统可以包括电流感测系统，其被配置为感测通过电感行进的电流;配置成产生第一和不同的第二阈值的双阈值发生器;以及比较器系统，被配置为将由电流感测系统感测的电流与 当DC-DC转换器工作在连续电流模式时和第二阈值，当DC-DC转换器工作在不连续电流模式时，第一阈值。

公开(公告)号：US20100320974A1

公开(公告)日：2010-12-23

申请号：US12489184

申请日：2009-06-22

申请人： Gregory J. Manlove ,  Andrew J. Gardner ,  Yiding (Eric) Gu

发明人： Gregory J. Manlove ,  Andrew J. Gardner ,  Yiding (Eric) Gu

IPC分类号： G05F1/10

CPC分类号： H02M3/157

摘要： A switching regulator is configured to provide a regulated voltage to a load while maintaining a substantially maximum output current limit, the switching regulator having a loop gain. In accordance with one aspect the switching regulator comprises: a circuit for adjusting the maximum output current limit in response to a programmable signal independently of the loop gain. In accordance with another aspect, the switching regulator comprises: a resistance sensing element for providing the current output of the regulator, and having a resistance which varies with temperature; and a circuit for maintaining the output current limit at a level independent of the temperature of the sensing element. In addition, in accordance with one aspect, a method of providing a regulated voltage to a load is disclosed in which a substantially maximum output current limit of a switching regulator is maintained. In one aspect the method comprises: adjusting the maximum output current limit in response to a programmable signal independently of the loop gain. In accordance with a second aspect, the method comprises: maintaining the output current limit at a level independent of the temperature of the sensing element and a constant transient response to load perturbations as a function of temperature and current limit setting.

摘要翻译： 开关调节器被配置为向负载提供调节电压，同时保持基本上最大的输出电流限制，所述开关调节器具有环路增益。 根据一个方面，开关调节器包括：用于独立于环路增益而响应于可编程信号调整最大输出电流限制的电路。 根据另一方面，开关调节器包括：电阻感测元件，用于提供调节器的电流输出，并具有随温度变化的电阻; 以及用于将输出电流限制保持在与感测元件的温度无关的水平的电路。 此外，根据一个方面，公开了一种向负载提供调节电压的方法，其中维持开关调节器的基本上最大的输出电流限制。 在一个方面，该方法包括：独立于环路增益，响应于可编程信号调整最大输出电流限制。 根据第二方面，该方法包括：将输出电流限制保持在独立于感测元件的温度的水平上，以及对作为温度和电流限制设置的函数的负载扰动的恒定瞬态响应。

公开(公告)号：US20110062929A1

公开(公告)日：2011-03-17

申请号：US12561912

申请日：2009-09-17

申请人： Johan Strydom ,  Yiding (Eric) Gu

发明人： Johan Strydom ,  Yiding (Eric) Gu

IPC分类号： G05F1/10

CPC分类号： H02M3/158

摘要： A current mode power conversion system and method are described that provide a stable output voltage and a maximum-limited output current to a load. The system comprises: a feedback control linearly operable so as to control the output voltage across the load during constant load conditions, and non-linearly operable so as to control the output voltage across the load during certain detected changes in load conditions above a predetermined threshold so as to speed up the transient response of the power conversion system.

摘要翻译： 描述了向负载提供稳定的输出电压和最大限制的输出电流的电流模式功率转换系统和方法。 该系统包括：线性可操作的反馈控制，以便在恒定负载条件期间控制跨过负载的输出电压，并且非线性地操作，以便在负载状态的某些检测到的变化高于预定阈值时控制负载两端的输出电压 以加快电力转换系统的瞬态响应。

公开(公告)号：US08786265B2

公开(公告)日：2014-07-22

申请号：US12489184

申请日：2009-06-22

申请人： Gregory J. Manlove ,  Andrew J. Gardner ,  Yiding (Eric) Gu

发明人： Gregory J. Manlove ,  Andrew J. Gardner ,  Yiding (Eric) Gu

IPC分类号： G05F1/00

CPC分类号： H02M3/157

摘要： A switching regulator is configured to provide a regulated voltage to a load while maintaining a substantially maximum output current limit, the switching regulator having a loop gain. In accordance with one aspect the switching regulator comprises: a circuit for adjusting the maximum output current limit in response to a programmable signal independently of the loop gain. In accordance with another aspect, the switching regulator comprises: a resistance sensing element for providing the current output of the regulator, and having a resistance which varies with temperature; and a circuit for maintaining the output current limit at a level independent of the temperature of the sensing element. In addition, in accordance with one aspect, a method of providing a regulated voltage to a load is disclosed in which a substantially maximum output current limit of a switching regulator is maintained. In one aspect the method comprises: adjusting the maximum output current limit in response to a programmable signal independently of the loop gain. In accordance with a second aspect, the method comprises: maintaining the output current limit at a level independent of the temperature of the sensing element and a constant transient response to load perturbations as a function of temperature and current limit setting.

摘要翻译： 开关调节器被配置为向负载提供调节电压，同时保持基本上最大的输出电流限制，所述开关调节器具有环路增益。 根据一个方面，开关调节器包括：用于独立于环路增益而响应于可编程信号调整最大输出电流限制的电路。 根据另一方面，开关调节器包括：电阻感测元件，用于提供调节器的电流输出，并具有随温度变化的电阻; 以及用于将输出电流限制保持在与感测元件的温度无关的水平的电路。 此外，根据一个方面，公开了一种向负载提供调节电压的方法，其中维持开关调节器的基本上最大的输出电流限制。 在一个方面，该方法包括：独立于环路增益，响应于可编程信号调整最大输出电流限制。 根据第二方面，该方法包括：将输出电流限制保持在独立于感测元件的温度的水平上，以及对作为温度和电流限制设置的函数的负载扰动的恒定瞬态响应。

公开(公告)号：US08587274B2

公开(公告)日：2013-11-19

申请号：US12561912

申请日：2009-09-17

申请人： Johan Strydom ,  Yiding (Eric) Gu

发明人： Johan Strydom ,  Yiding (Eric) Gu

IPC分类号： G05F1/40

CPC分类号： H02M3/158

摘要： A current mode power conversion system and method are described that provide a stable output voltage and a maximum-limited output current to a load. The system comprises: a feedback control linearly operable so as to control the output voltage across the load during constant load conditions, and non-linearly operable so as to control the output voltage across the load during certain detected changes in load conditions above a predetermined threshold so as to speed up the transient response of the power conversion system.

摘要翻译： 描述了向负载提供稳定的输出电压和最大限制的输出电流的电流模式功率转换系统和方法。 该系统包括：线性可操作的反馈控制，以便在恒定负载条件期间控制跨过负载的输出电压，并且非线性地操作，以便在负载状态的某些检测到的变化高于预定阈值时控制负载两端的输出电压 以加快电力转换系统的瞬态响应。