-
公开(公告)号：USRE42947E1
公开(公告)日：2011-11-22
申请号：US12813470
申请日：2010-06-10
CPC分类号： G05F1/70 , H02M1/4225 , Y02B70/126
摘要： Circuits, systems, methods and software for controlling a power conversion and/or correcting and/or controlling a power factor in such conversion(s). The present invention generally takes a computational approach to reducing or minimizing zero current periods in the critical mode of power converter operation, and advantageously reduces zero current periods in the critical mode of power converter operation, thereby maximizing the power factor of the power converter in the critical mode and reducing noise that may be injected back into AC power lines. The present power factor controller allows for greater design flexibility, reduced design complexity, and reduced resolution and greater tolerance for error in certain parameter measurements useful in power factor correction and/or control.
-
2.再颁专利Circuits, systems, methods, and software for power factor correction and/or control 有权用于功率因数校正和/或控制的电路，系统，方法和软件公开(公告)号：USRE42946E1
公开(公告)日：2011-11-22
申请号：US12813467
申请日：2010-06-10
CPC分类号： G05F1/70 , H02M1/4225 , Y02B70/126
摘要： Circuits, systems, methods and software for controlling a power conversion and/or correcting and/or controlling a power factor in such conversion(s). The present invention generally takes a computational approach to reducing or minimizing zero current periods in the critical mode of power converter operation, and advantageously reduces zero current periods in the critical mode of power converter operation, thereby maximizing the power factor of the power converter in the critical mode and reducing noise that may be injected back into AC power lines. The present power factor controller allows for greater design flexibility, reduced design complexity, and reduced resolution and greater tolerance for error in certain parameter measurements useful in power factor correction and/or control.
摘要翻译： 用于控制功率转换和/或校正和/或控制这种转换中的功率因数的电路，系统，方法和软件。 本发明通常采用计算方法来减少或最小化功率转换器运行的临界模式中的零电流周期，并且有利地在功率转换器运行的临界模式中减少零电流周期，由此使功率转换器的功率因数最大化 临界模式和减少可能注入到交流电源线中的噪声。 本功率因数控制器允许更大的设计灵活性，降低的设计复杂性和降低的分辨率以及在功率因数校正和/或控制中有用的某些参数测量中对误差的更大误差。
-
3.发明授权Power factor correction boost converter with continuous, discontinuous, or critical mode selection 有权具有连续，不连续或临界模式选择的功率因数校正升压转换器公开(公告)号：US07733678B1
公开(公告)日：2010-06-08
申请号：US11849158
申请日：2007-08-31
IPC分类号： G05F1/70
CPC分类号： H02M1/4225 , Y02B70/126 , Y10S323/901
摘要： In a method and apparatus for controlling power factor correction in mixed operation modes, a frequency of the input voltage is obtained by detecting the zero crossing points of the input voltage. A peak of the input voltage is obtained by detecting input voltage with 90 degree phase. Thus, the present invention predicts the input voltage by its frequency and peak and the characteristic of the sine wave. A digital signal processor computes the duty and frequency of a boost switch, switching the operation mode of the boost converter among continuous mode, critical mode and discontinuous mode according to input voltage or the load. According to another aspect, the operation is switched to critical mode from the average current mode when a zero current is detected before the charging and recharging cycle of the boost switch is finished. Overcurrent protection may be achieved by controlling current in response to detected voltage to provide a substantially constant power level. The overcurrent protection may be adaptive in nature.
摘要翻译： 在混合动作模式中的功率因数校正控制方法和装置中，通过检测输入电压的过零点来获得输入电压的频率。 通过检测90度相位的输入电压可以获得输入电压的峰值。 因此，本发明通过其频率和峰值以及正弦波的特性来预测输入电压。 数字信号处理器计算升压开关的占空比和频率，根据输入电压或负载将升压转换器的工作模式切换到连续模式，临界模式和不连续模式。 根据另一方面，当在升压开关的充电和再充电循环完成之前检测到零电流时，操作从平均电流模式切换到临界模式。 过电流保护可以通过响应于检测到的电压来控制电流来实现，以提供基本上恒定的功率电平。 过电流保护本质上可能是适应性的。
-
公开(公告)号：US07266001B1
公开(公告)日：2007-09-04
申请号：US10804660
申请日：2004-03-19
IPC分类号： H02M7/00
摘要： In a method and apparatus for controlling power factor correction in mixed operation modes, a frequency of the input voltage is obtained by detecting the zero crossing points of the input voltage. A peak of the input voltage is obtained by detecting input voltage with 90 degree phase. Thus, the present invention predicts the input voltage by its frequency and peak and the characteristic of the sine wave. A digital signal processor computes the duty and frequency of a boost switch, switching the operation mode of the boost converter among continuous mode, critical mode and discontinuous mode according to input voltage or the load. According to another aspect, the operation is switched to critical mode from the average current mode when a zero current is detected before the charging and recharging cycle of the boost switch is finished.
摘要翻译： 在混合动作模式中的功率因数校正控制方法和装置中，通过检测输入电压的过零点来获得输入电压的频率。 通过检测90度相位的输入电压可以获得输入电压的峰值。 因此，本发明通过其频率和峰值以及正弦波的特性来预测输入电压。 数字信号处理器计算升压开关的占空比和频率，根据输入电压或负载将升压转换器的工作模式切换到连续模式，临界模式和不连续模式。 根据另一方面，当在升压开关的充电和再充电循环完成之前检测到零电流时，操作从平均电流模式切换到临界模式。
-
公开(公告)号：US07990740B1
公开(公告)日：2011-08-02
申请号：US12100345
申请日：2008-04-09
IPC分类号： H02M7/04
CPC分类号： H02M1/4225 , Y02B70/126
摘要： In a method and apparatus for controlling power factor correction (PFC) in mixed operation modes, a frequency of the input voltage is obtained by detecting the zero crossing points of the input voltage. A peak of the input voltage is obtained by detecting input voltage with 90 degree phase. Thus, the present invention predicts the input voltage by its frequency and peak and the characteristic of the sine wave. A digital signal processor computes the duty and frequency of a boost switch, switching the operation mode of the boost converter among continuous mode, critical mode and discontinuous mode according to input voltage or the load. According to another aspect, the operation is switched to critical mode from the average current mode when a zero current is detected before the charging and recharging cycle of the boost switch is finished. Overcurrent protection may be achieved by controlling current in response to detected voltage to provide a substantially constant power level. The overcurrent protection may be adaptive in nature. In this aspect, an adaptive driver for a PFC controller reduces the slew rate of signals over the boost switch of the PFC controller. The adaptive driver may have a group of transistors which may be divided into a plurality of branches. The charging current through the boost switch may be increased by turning on an increasing number of branches until the voltage over the switch exceeds a reference voltage, and this may determine the number of branches to drive the boost switch during normal operation.
摘要翻译： 在混合动作模式中，用于控制功率因数校正（PFC）的方法和装置中，通过检测输入电压的过零点来获得输入电压的频率。 通过检测90度相位的输入电压可以获得输入电压的峰值。 因此，本发明通过其频率和峰值以及正弦波的特性来预测输入电压。 数字信号处理器计算升压开关的占空比和频率，根据输入电压或负载将升压转换器的工作模式切换到连续模式，临界模式和不连续模式。 根据另一方面，当在升压开关的充电和再充电循环完成之前检测到零电流时，操作从平均电流模式切换到临界模式。 过电流保护可以通过响应于检测到的电压来控制电流来实现，以提供基本上恒定的功率电平。 过电流保护本质上可能是适应性的。 在这方面，用于PFC控制器的自适应驱动器通过PFC控制器的升压开关降低信号的转换速率。 自适应驱动器可以具有可以被分成多个分支的一组晶体管。 可以通过接通越来越多的分支直到开关上的电压超过参考电压来增加通过升压开关的充电电流，这可以确定在正常操作期间驱动升压开关的分支数。
-
6.发明授权Circuits, systems, methods, and software for power factor correction and/or control 有权用于功率因数校正和/或控制的电路，系统，方法和软件公开(公告)号：US07511460B1
公开(公告)日：2009-03-31
申请号：US11977869
申请日：2007-10-26
申请人： Xiaopeng Chen , Jianqing Lin
发明人： Xiaopeng Chen , Jianqing Lin
CPC分类号： G05F1/70 , H02M1/4225 , Y02B70/126
摘要： Circuits, systems, methods and software for controlling a power conversion and/or correcting and/or controlling a power factor in such conversion(s). The present invention generally takes a computational approach to reducing or minimizing zero current periods in the critical mode of power converter operation, and advantageously reduces zero current periods in the critical mode of power converter operation, thereby maximizing the power factor of the power converter in the critical mode and reducing noise that may be injected back into AC power lines. The present power factor controller allows for greater design flexibility, reduced design complexity, and reduced resolution and greater tolerance for error in certain parameter measurements useful in power factor correction and/or control.
摘要翻译： 用于控制功率转换和/或校正和/或控制这种转换中的功率因数的电路，系统，方法和软件。 本发明通常采用计算方法来减少或最小化功率转换器运行的临界模式中的零电流周期，并且有利地在功率转换器运行的临界模式中减少零电流周期，由此使功率转换器的功率因数最大化 临界模式和减少可能注入到交流电源线中的噪声。 本功率因数控制器允许更大的设计灵活性，降低的设计复杂性和降低的分辨率以及在功率因数校正和/或控制中有用的某些参数测量中对误差的更大误差。
-
7.发明授权Circuits, systems, methods, and software for power factor correction and/or control 有权用于功率因数校正和/或控制的电路，系统，方法和软件公开(公告)号：US07292013B1
公开(公告)日：2007-11-06
申请号：US10949624
申请日：2004-09-24
申请人： Xiaopeng Chen , Jianqing Lin
发明人： Xiaopeng Chen , Jianqing Lin
CPC分类号： G05F1/70 , H02M1/4225 , Y02B70/126
摘要： Circuits, systems, methods and software for controlling a power conversion and/or correcting and/or controlling a power factor in such conversion(s). The present invention generally takes a computational approach to reducing or minimizing zero current periods in the critical mode of power converter operation, and advantageously reduces zero current periods in the critical mode of power converter operation, thereby maximizing the power factor of the power converter in the critical mode and reducing noise that may be injected back into AC power lines. The present power factor controller allows for greater design flexibility, reduced design complexity, and reduced resolution and greater tolerance for error in certain parameter measurements useful in power factor correction and/or control.
摘要翻译： 用于控制功率转换和/或校正和/或控制这种转换中的功率因数的电路，系统，方法和软件。 本发明通常采用计算方法来减少或最小化功率转换器运行的临界模式中的零电流周期，并且有利地在功率转换器运行的临界模式中减少零电流周期，由此使功率转换器的功率因数最大化 临界模式和减少可能注入到交流电源线中的噪声。 本功率因数控制器允许更大的设计灵活性，降低的设计复杂性和降低的分辨率以及在功率因数校正和/或控制中有用的某些参数测量中对误差的更大误差。
-
公开(公告)号：US08111050B2
公开(公告)日：2012-02-07
申请号：US12902440
申请日：2010-10-12
申请人： Sehat Sutardja , Jianqing Lin
发明人： Sehat Sutardja , Jianqing Lin
CPC分类号： H02M7/217 , G05F1/70 , H02M1/4225 , Y02B70/126
摘要： A boost converter comprises an inductance that receives an input signal. A switch controls current supplied by the inductance to a load. A power factor control module comprises a mode control module that selects an operating mode of the boost converter and a switch control module that switches the switch at a frequency. The frequency is equal to a first frequency when the mode control module selects a continuous mode and equal to a second frequency when the mode control module selects a discontinuous mode. The first frequency is greater than the second frequency.
摘要翻译： 升压转换器包括接收输入信号的电感。 开关将电感提供给负载。 功率因数控制模块包括选择升压转换器的工作模式的模式控制模块和以一定频率切换开关的开关控制模块。 当模式控制模块选择不连续模式时，当模式控制模块选择连续模式并等于第二频率时，频率等于第一频率。 第一个频率大于第二个频率。
-
公开(公告)号：US20110026284A1
公开(公告)日：2011-02-03
申请号：US12902440
申请日：2010-10-12
申请人： Sehat Sutardja , Jianqing Lin
发明人： Sehat Sutardja , Jianqing Lin
IPC分类号： H02M7/06
CPC分类号： H02M7/217 , G05F1/70 , H02M1/4225 , Y02B70/126
摘要： A boost converter comprises an inductance that receives an input signal. A switch controls current supplied by the inductance to a load. A power factor control module comprises a mode control module that selects an operating mode of the boost converter and a switch control module that switches the switch at a frequency. The frequency is equal to a first frequency when the mode control module selects a continuous mode and equal to a second frequency when the mode control module selects a discontinuous mode. The first frequency is greater than the second frequency.
摘要翻译： 升压转换器包括接收输入信号的电感。 开关将电感提供给负载。 功率因数控制模块包括选择升压转换器的工作模式的模式控制模块和以一定频率切换开关的开关控制模块。 当模式控制模块选择不连续模式时，当模式控制模块选择连续模式并等于第二频率时，频率等于第一频率。 第一个频率大于第二个频率。
-
公开(公告)号：US08680822B2
公开(公告)日：2014-03-25
申请号：US13366951
申请日：2012-02-06
申请人： Sehat Sutardja , Jianqing Lin
发明人： Sehat Sutardja , Jianqing Lin
IPC分类号： G05F1/613
CPC分类号： H02M7/217 , G05F1/70 , H02M1/4225 , Y02B70/126
摘要： A boost converter comprises an inductance that receives an input signal. A switch controls current supplied by the inductance to a load. A power factor control module comprises a mode control module that selects an operating mode of the boost converter and a switch control module that switches the switch at a frequency. The frequency is equal to a first frequency when the mode control module selects a continuous mode and equal to a second frequency when the mode control module selects a discontinuous mode. The first frequency is greater than the second frequency.
摘要翻译： 升压转换器包括接收输入信号的电感。 开关将电感提供给负载。 功率因数控制模块包括选择升压转换器的工作模式的模式控制模块和以一定频率切换开关的开关控制模块。 当模式控制模块选择不连续模式时，当模式控制模块选择连续模式并等于第二频率时，频率等于第一频率。 第一个频率大于第二个频率。
-
-
-
-
-
-
-
-
-
搜索结果
17 条记录 (耗时 0.022 秒)
