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公开(公告)号：US11183860B2
公开(公告)日：2021-11-23
申请号：US16735390
申请日：2020-01-06
发明人： Miao Li , Lieyi Fang
摘要： System and method for discharging a capacitor. An example system includes a signal detector and a discharge control component. The signal detector is configured to receive an input signal and generate a detection signal based on at least information associated with the input signal, the input signal being associated with an alternate current signal received by a capacitor including a first capacitor terminal and a second capacitor terminal. The discharge control component configured to receive at least the detection signal and generate an output signal to discharge the capacitor if the detection signal satisfies one or more conditions.
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公开(公告)号：US09899849B2
公开(公告)日：2018-02-20
申请号：US15089231
申请日：2016-04-01
发明人： Miao Li , Lieyi Fang
CPC分类号： H02J7/0036 , H02J7/0047 , H02J7/0063 , H02J7/345 , H02M7/219
摘要： System and method for discharging a capacitor. An example system includes a signal detector and a discharge control component. The signal detector is configured to receive an input signal and generate a detection signal based on at least information associated with the input signal, the input signal being associated with an alternate current signal received by a capacitor including a first capacitor terminal and a second capacitor terminal. The discharge control component configured to receive at least the detection signal and generate an output signal to discharge the capacitor if the detection signal satisfies one or more conditions.
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3.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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4.发明申请SYSTEMS AND METHODS FOR CONTROLLING BRIGHTNESS OF COLD-CATHODE FLUORESCENT LAMPS WITH WIDE DIMMING RANGE AND ADJUSTABLE MINIMUM BRIGHTNESS 有权用于控制具有宽度调节范围和可调光最小亮度的冷阴极荧光灯亮度的系统和方法公开(公告)号：US20130147357A1
公开(公告)日：2013-06-13
申请号：US13762222
申请日：2013-02-07
发明人： Miao Li , Liqiang Zhu , Lieyi Fang
IPC分类号： H05B41/39
CPC分类号： H05B41/39 , H05B41/282 , H05B41/3927 , Y02B20/183
摘要： System and method for adjusting brightness of one or more cold-cathode fluorescent lamps. The system includes a voltage selector configured to receive a dimming voltage and a first threshold voltage and generate an output voltage. The output voltage is selected from a group consisting of the dimming voltage and the first threshold voltage. Additionally, the system includes an oscillator coupled to a first capacitor and configured to generate a ramp signal with the first capacitor, and a signal generator configured to receive the ramp signal and the output voltage and generate a first signal. The first signal corresponds to a lamp brightness level. Moreover, the system includes a brightness detector configured to receive the first signal and output a second signal. The second signal indicates whether the lamp brightness level is higher than a threshold brightness level.
摘要翻译： 用于调节一个或多个冷阴极荧光灯的亮度的系统和方法。 该系统包括被配置为接收调光电压和第一阈值电压并产生输出电压的电压选择器。 输出电压从由调光电压和第一阈值电压组成的组中选择。 另外，该系统包括耦合到第一电容器并被配置为产生与第一电容器的斜坡信号的振荡器，以及被配置为接收斜坡信号和输出电压并产生第一信号的信号发生器。 第一个信号对应于灯的亮度级别。 此外，该系统包括配置成接收第一信号并输出第二信号的亮度检测器。 第二信号指示灯亮度是否高于阈值亮度级。
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5.发明申请公开(公告)号：US20170346408A1
公开(公告)日：2017-11-30
申请号：US15624582
申请日：2017-06-15
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.
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公开(公告)号：US20150091470A1
公开(公告)日：2015-04-02
申请号：US14562432
申请日：2014-12-05
发明人： Jun Zhou , Zhougliang Xiong , Miao Li , Yaming Cao , Qiang Luo , Lieyi Fang
IPC分类号： H05B33/08
CPC分类号： H05B33/0845 , H05B33/0815 , H05B33/0851 , H05B37/02
摘要： System and method for dimming control. The system includes a system controller including a first controller terminal and a second controller terminal, a transistor including a first transistor terminal, a second transistor terminal and a third transistor terminal, and a resistor including a first resistor terminal and a second resistor terminal. The system controller is configured to generate a first signal at the first controller terminal based on an input signal and to generate a second signal at the second controller terminal based on the first signal. The first transistor terminal is coupled to the second controller terminal. The first resistor terminal is coupled to the second transistor terminal. The second resistor terminal is coupled to the third transistor terminal. The transistor is configured to receive the second signal at the first transistor terminal and to change between two conditions in response to the second signal.
摘要翻译： 调光控制系统及方法。 该系统包括具有第一控制器端子和第二控制器端子的系统控制器，包括第一晶体管端子，第二晶体管端子和第三晶体管端子的晶体管，以及包括第一电阻端子和第二电阻端子的电阻器。 系统控制器被配置为基于输入信号在第一控制器终端产生第一信号，并且基于第一信号在第二控制器终端产生第二信号。 第一晶体管端子耦合到第二控制器端子。 第一电阻端子耦合到第二晶体管端子。 第二电阻端子耦合到第三晶体管端子。 晶体管被配置为在第一晶体管端子处接收第二信号并响应于第二信号在两个条件之间变化。
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公开(公告)号：US10756687B2
公开(公告)日：2020-08-25
申请号：US16206677
申请日：2018-11-30
发明人： Miao Li , Qiang Luo , Lieyi Fang
摘要： System controller and method for providing at least an output voltage. For example, the system controller includes a first controller terminal configured to receive an input voltage. The input voltage is associated with an input-voltage magnitude. Additionally, the system controller includes a second controller terminal configured to receive a control voltage, and a third controller terminal configured to output an output voltage to a load. Moreover, the system controller includes a supply voltage generator configured to receive the input voltage from the first controller terminal and generate a supply voltage. The supply voltage is associated with a supply voltage magnitude. Also, the system controller includes a ramp voltage generator configured to receive the supply voltage and generate a ramp voltage.
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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：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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9.发明授权High-precision oscillator systems with feed forward compensation for CCFL driver systems and methods thereof 有权具有CCFL驱动器系统的前馈补偿的高精度振荡器系统及其方法公开(公告)号：US09059688B2
公开(公告)日：2015-06-16
申请号：US13763535
申请日：2013-02-08
发明人： Liqiang Zhu , Miao Li , Lieyi Fang
IPC分类号： H03K4/06 , H02M7/538 , H05B41/282 , H02M1/00
CPC分类号： H03K4/06 , H02M7/53803 , H02M2001/0022 , H05B41/282 , H05B41/2824 , H05B41/2828 , Y02B20/183
摘要： System and method for generating one or more ramp signals. The method includes an oscillator configured to generate at least a clock signal, and a ramp signal generator configured to receive at least the clock signal and generate a first ramp signal. Additionally, the ramp signal generator is coupled to a first resistor including a first terminal and a second terminal. The first resistor is configured to receive an input voltage at the first terminal and is coupled to the ramp signal generator at the second terminal. Moreover, the first resistor is associated with a first resistance value. Also, the clock signal is associated with at least a predetermined frequency. The predetermined frequency does not change if the input voltage changes from a first magnitude to a second magnitude. The first magnitude is different from the second magnitude.
摘要翻译： 用于产生一个或多个斜坡信号的系统和方法。 该方法包括被配置为产生至少一个时钟信号的振荡器和被配置为至少接收时钟信号并产生第一斜坡信号的斜坡信号发生器。 另外，斜坡信号发生器耦合到包括第一端子和第二端子的第一电阻器。 第一电阻器被配置为在第一端子处接收输入电压并且在第二端子耦合到斜坡信号发生器。 此外，第一电阻器与第一电阻值相关联。 此外，时钟信号至少与预定频率相关联。 如果输入电压从第一幅度变化到第二幅度，则预定频率不改变。 第一幅度与第二幅度不同。
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公开(公告)号：US10566809B2
公开(公告)日：2020-02-18
申请号：US15835232
申请日：2017-12-07
发明人： Miao Li , Lieyi Fang
摘要： System and method for discharging a capacitor. An example system includes a signal detector and a discharge control component. The signal detector is configured to receive an input signal and generate a detection signal based on at least information associated with the input signal, the input signal being associated with an alternate current signal received by a capacitor including a first capacitor terminal and a second capacitor terminal. The discharge control component configured to receive at least the detection signal and generate an output signal to discharge the capacitor if the detection signal satisfies one or more conditions.
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