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1.发明授权System and method providing protection in the event of current sensing failure for power converter 有权系统和方法在电力变换器电流检测故障的情况下提供保护公开(公告)号：US09362737B2
公开(公告)日：2016-06-07
申请号：US14500665
申请日：2014-09-29
发明人： Dongze Yang , Yaming Cao , Yunchao Zhang , Lieyi Fang
CPC分类号： H02M3/33515 , H02H7/1213 , H02M1/08 , H02M1/32 , H02M3/33507 , H02M2001/0009
摘要： System and method for protecting a power converter. The system includes a first comparator configured to receive a first threshold signal and a first signal and to generate a first comparison signal. The first signal is associated with an input current for a power converter. Additionally, the system includes a second comparator configured to receive a second threshold signal and the first signal and to generate a second comparison signal. The second threshold signal is different from the first threshold signal in magnitude. Moreover, the system includes a first detection component configured to receive at least the second comparison signal, detect the second comparison signal only if one or more predetermined conditions are satisfied, and generate a first detection signal based on at least information associated with the detected second comparison signal.
摘要翻译： 保护电源转换器的系统和方法。 该系统包括被配置为接收第一阈值信号和第一信号并产生第一比较信号的第一比较器。 第一个信号与功率转换器的输入电流相关联。 另外，该系统包括第二比较器，其被配置为接收第二阈值信号和第一信号并产生第二比较信号。 第二阈值信号的大小不同于第一阈值信号。 此外，该系统包括被配置为至少接收第二比较信号的第一检测组件，仅在满足一个或多个预定条件时检测第二比较信号，并且至少基于与检测到的第二比较信号相关联的信息产生第一检测信号 比较信号。
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2.发明申请SYSTEMS AND METHODS FOR REDUCING ELECTROMAGNETIC INTERFERENCE BY ADJUSTING SWITCHING PROCESSES 有权通过调整切换过程减少电磁干扰的系统和方法公开(公告)号：US20160036336A1
公开(公告)日：2016-02-04
申请号：US14821456
申请日：2015-08-07
发明人： Dongze Yang , Miao Li , Lieyi Fang
IPC分类号： H02M3/335
CPC分类号： H02M3/33523 , H02M1/08 , H02M3/33515 , H03K17/162
摘要： System and method for regulating a power conversion system. An example system controller for regulating a power conversion system includes a signal generator and a driving component. The signal generator is configured to receive a feedback signal associated with an output signal of a power conversion system and a current sensing signal associated with a primary current flowing through a primary winding of the power conversion system and generate a modulation signal based on at least information associated with the feedback signal and the current sensing signal. The driving component is configured to receive the modulation signal and output a drive signal to a switch based on at least information associated with the modulation signal.
摘要翻译： 用于调节电力转换系统的系统和方法。 用于调节功率转换系统的示例性系统控制器包括信号发生器和驱动部件。 信号发生器被配置为接收与功率转换系统的输出信号相关联的反馈信号和与流过功率转换系统的初级绕组的初级电流相关联的电流感测信号，并基于至少信息产生调制信号 与反馈信号和电流感测信号相关联。 驱动部件被配置为接收调制信号，并且至少基于与调制信号相关联的信息将驱动信号输出到开关。
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3.发明授权公开(公告)号：US11356025B2
公开(公告)日：2022-06-07
申请号：US15707155
申请日：2017-09-18
发明人： Dongze Yang , Yaming Cao , Yunchao Zhang , Lieyi Fang
摘要： System and method for protecting a power converter. The system includes a first comparator configured to receive a first threshold signal and a first signal and to generate a first comparison signal. The first signal is associated with an input current for a power converter. Additionally, the system includes a second comparator configured to receive a second threshold signal and the first signal and to generate a second comparison signal. The second threshold signal is different from the first threshold signal in magnitude. Moreover, the system includes a first detection component configured to receive at least the second comparison signal, detect the second comparison signal only if one or more predetermined conditions are satisfied, and generate a first detection signal based on at least information associated with the detected second comparison signal.
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4.发明申请System and Method Providing Reliable Over Current Protection for Power Converter 有权系统和方法为电源转换器提供可靠的过流保护公开(公告)号：US20160226239A1
公开(公告)日：2016-08-04
申请号：US14639607
申请日：2015-03-05
发明人： Dongze Yang , Xiaomin Huang , Xiaozhi Kang , Yuan Lin , Huawei Lyu , Lieyi Fang
CPC分类号： H02H7/125 , H02H7/12 , H02H9/025 , H02M1/08 , H02M1/32 , H02M1/44 , H02M3/33507 , H02M3/33523 , H02M2001/0009
摘要： System controller and method for protecting a power converter. The system controller includes a first controller terminal configured to output a drive signal to a switch to affect a first current flowing through a primary winding of a power converter. The power converter further includes a secondary winding coupled to the primary winding, and the drive signal is associated with one or more switching periods. Additionally, the system controller includes a second controller terminal configured to receive a sensing voltage from a sensing resistor. The sensing voltage represents a magnitude of the first current flowing through the primary winding of the power converter. The system controller is configured to process information associated with the sensing voltage and a reference voltage, and determine whether an average output current of the power converter is larger than a current threshold.
摘要翻译： 用于保护电源转换器的系统控制器和方法。 系统控制器包括第一控制器端子，其被配置为将驱动信号输出到开关以影响流过功率转换器的初级绕组的第一电流。 功率转换器还包括耦合到初级绕组的次级绕组，并且驱动信号与一个或多个开关周期相关联。 此外，系统控制器包括被配置为从感测电阻器接收感测电压的第二控制器端子。 感测电压表示流过功率转换器的初级绕组的第一电流的大小。 系统控制器被配置为处理与感测电压和参考电压相关联的信息，并且确定功率转换器的平均输出电流是否大于电流阈值。
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5.发明授权Systems and methods for reducing electromagnetic interference by adjusting switching processes 有权通过调整切换过程减少电磁干扰的系统和方法公开(公告)号：US09143039B2
公开(公告)日：2015-09-22
申请号：US13779583
申请日：2013-02-27
发明人： Dongze Yang , Miao Li , Lieyi Fang
CPC分类号： H02M3/33523 , H02M1/08 , H02M3/33515 , H03K17/162
摘要： System and method for regulating a power conversion system. An example system controller for regulating a power conversion system includes a signal generator and a driving component. The signal generator is configured to receive a feedback signal associated with an output signal of a power conversion system and a current sensing signal associated with a primary current flowing through a primary winding of the power conversion system and generate a modulation signal based on at least information associated with the feedback signal and the current sensing signal. The driving component is configured to receive the modulation signal and output a drive signal to a switch based on at least information associated with the modulation signal.
摘要翻译： 用于调节电力转换系统的系统和方法。 用于调节功率转换系统的示例性系统控制器包括信号发生器和驱动部件。 信号发生器被配置为接收与功率转换系统的输出信号相关联的反馈信号和与流过功率转换系统的初级绕组的初级电流相关联的电流感测信号，并基于至少信息产生调制信号 与反馈信号和电流感测信号相关联。 驱动部件被配置为接收调制信号，并且至少基于与调制信号相关联的信息将驱动信号输出到开关。
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6.发明授权公开(公告)号：US10230304B2
公开(公告)日：2019-03-12
申请号：US15624582
申请日：2017-06-15
发明人： Dongze Yang , Miao Li , Lieyi Fang
摘要： System and method for regulating a power conversion system. An example system controller for regulating a power conversion system includes a signal generator and a driving component. The signal generator is configured to receive a feedback signal associated with an output signal of a power conversion system and a current sensing signal associated with a primary current flowing through a primary winding of the power conversion system and generate a modulation signal based on at least information associated with the feedback signal and the current sensing signal. The driving component is configured to receive the modulation signal and output a drive signal to a switch based on at least information associated with the modulation signal.
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公开(公告)号：US20170163026A1
公开(公告)日：2017-06-08
申请号：US15380693
申请日：2016-12-15
发明人： Dongze Yang , Xiaomin Huang , Xiaozhi Kang , Yuan Lin , Huawei Lyu , Lieyi Fang
CPC分类号： H02H7/125 , H02H7/12 , H02H9/025 , H02M1/08 , H02M1/32 , H02M1/44 , H02M3/33507 , H02M3/33523 , H02M2001/0009
摘要： System controller and method for protecting a power converter. The system controller includes a first controller terminal configured to output a drive signal to a switch to affect a first current flowing through a primary winding of a power converter. The power converter further includes a secondary winding coupled to the primary winding, and the drive signal is associated with one or more switching periods. Additionally, the system controller includes a second controller terminal configured to receive a sensing voltage from a sensing resistor. The sensing voltage represents a magnitude of the first current flowing through the primary winding of the power converter. The system controller is configured to process information associated with the sensing voltage and a reference voltage, and determine whether an average output current of the power converter is larger than a current threshold.
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8.发明申请SYSTEMS AND METHODS FOR REDUCING ELECTROMAGNETIC INTERFERENCE BY ADJUSTING SWITCHING PROCESSES 有权通过调整切换过程减少电磁干扰的系统和方法公开(公告)号：US20140233271A1
公开(公告)日：2014-08-21
申请号：US13779583
申请日：2013-02-27
发明人： Dongze Yang , Miao Li , Lieyi Fang
IPC分类号： H02M3/335
CPC分类号： H02M3/33523 , H02M1/08 , H02M3/33515 , H03K17/162
摘要： System and method for regulating a power conversion system. An example system controller for regulating a power conversion system includes a signal generator and a driving component. The signal generator is configured to receive a feedback signal associated with an output signal of a power conversion system and a current sensing signal associated with a primary current flowing through a primary winding of the power conversion system and generate a modulation signal based on at least information associated with the feedback signal and the current sensing signal. The driving component is configured to receive the modulation signal and output a drive signal to a switch based on at least information associated with the modulation signal.
摘要翻译： 用于调节电力转换系统的系统和方法。 用于调节功率转换系统的示例性系统控制器包括信号发生器和驱动部件。 信号发生器被配置为接收与功率转换系统的输出信号相关联的反馈信号和与流过功率转换系统的初级绕组的初级电流相关联的电流感测信号，并基于至少信息产生调制信号 与反馈信号和电流感测信号相关联。 驱动部件被配置为接收调制信号，并且至少基于与调制信号相关联的信息将驱动信号输出到开关。
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9.发明申请公开(公告)号：US20140203731A1
公开(公告)日：2014-07-24
申请号：US14220040
申请日：2014-03-19
发明人： Huawei Lv , Dongze Yang , Lieyi Fang
IPC分类号： H05B37/02
CPC分类号： H05B37/02 , H05B41/042
摘要： System and method for igniting one or more high-intensity-discharge lamps. A system includes an ignition controller configured to generate one or more signal pulses for a pulse signal during a first predetermined time period and to cause one or more voltage pulses to be applied to the one or more high-intensity-discharge lamps, the pulse signal changing between a first logic level and a second logic level during the first predetermined time period, each of the one or more signal pulses corresponding to a pulse period, the pulse period being no larger than the first predetermined time period. The ignition controller is further configured to, if the one or more high-intensity-discharge lamps are not successfully ignited after the first predetermined time period, stop generating any signal pulse for the pulse signal for a second predetermined time period, the second predetermined time period being equal to or larger than the pulse period.
摘要翻译： 用于点燃一个或多个高强度放电灯的系统和方法。 一种系统包括：点火控制器，被配置为在第一预定时间段期间产生用于脉冲信号的一个或多个信号脉冲，并且使一个或多个电压脉冲施加到所述一个或多个高强度放电灯，所述脉冲信号 在第一预定时间段期间在第一逻辑电平和第二逻辑电平之间切换，所述一个或多个信号脉冲中的每一个对应于脉冲周期，所述脉冲周期不大于所述第一预定时间段。 点火控制器还被配置为如果一个或多个高强度放电灯在第一预定时间段之后没有成功点火，则停止在第二预定时间段内产生脉冲信号的任何信号脉冲，第二预定时间 周期等于或大于脉冲周期。
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公开(公告)号：US10727743B2
公开(公告)日：2020-07-28
申请号：US16205023
申请日：2018-11-29
发明人： Yaming Cao , Dongze Yang , Qiang Luo , Lieyi Fang
摘要： System and method for regulating a power conversion system. For example, a system controller for regulating a power conversion system includes an amplifier, a variable-resistance component, a capacitor, and a modulation and drive component. The amplifier is configured to receive a reference signal and a feedback signal associated with an output signal of the power conversion system, the amplifier including an amplifier terminal. The variable-resistance component is associated with a first variable resistance value, the variable-resistance component including a first component terminal and a second component terminal, the first component terminal being coupled with the amplifier terminal. The capacitor includes a first capacitor terminal and a second capacitor terminal, the first capacitor terminal being coupled with the second component terminal. The modulation and drive component includes a first terminal and a second terminal, the first terminal being coupled with the amplifier terminal.
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