公开(公告)号：US08797769B2

公开(公告)日：2014-08-05

申请号：US13248786

申请日：2011-09-29

申请人： Yury Gaknoki ,  David Kung ,  Michael Yue Zhang

发明人： Yury Gaknoki ,  David Kung ,  Michael Yue Zhang

IPC分类号： H02M3/335

CPC分类号： H02M3/33515 ,  H02M1/08 ,  H02M3/33523 ,  H02M2001/0025

摘要： An example controller for a power converter includes a feedback sampling circuit, drive logic and a false sampling prevention circuit. The feedback sampling circuit is coupled to sample a feedback signal received from a terminal of the controller and to generate a sample signal representative of a value of the feedback signal. The drive logic is coupled to the feedback sampling circuit and coupled to control the power switch to regulate an output of the power converter in response to the sample signal. The false sampling prevention circuit is coupled to receive a sampling complete signal that indicates when the sampling of the feedback signal is complete. The false sampling prevention circuit is further coupled to the drive logic to extend the off time of the power switch until the sampling complete signal indicates that the sampling of the feedback signal by the feedback sampling circuit is complete.

摘要翻译： 用于功率转换器的示例性控制器包括反馈采样电路，驱动逻辑和假采样防止电路。 反馈采样电路被耦合以对从控制器的端子接收的反馈信号进行采样，并产生表示反馈信号的值的采样信号。 驱动逻辑耦合到反馈采样电路并被耦合以响应于采样信号来控制功率开关来调节功率转换器的输出。 虚假采样防止电路被耦合以接收指示反馈信号的采样何时完成的采样完成信号。 假采样防止电路还耦合到驱动逻辑以延长电源开关的关断时间，直到采样完成信号指示反馈采样电路的反馈信号的采样完成为止。

公开(公告)号：US20130083565A1

公开(公告)日：2013-04-04

申请号：US13248786

申请日：2011-09-29

申请人： Yury Gaknoki ,  David Kung

发明人： Yury Gaknoki ,  David Kung

IPC分类号： H02M3/335

CPC分类号： H02M3/33515 ,  H02M1/08 ,  H02M3/33523 ,  H02M2001/0025

摘要： An example controller for a power converter includes a feedback sampling circuit, drive logic and a false sampling prevention circuit. The feedback sampling circuit is coupled to sample a feedback signal received from a terminal of the controller and to generate a sample signal representative of a value of the feedback signal. The drive logic is coupled to the feedback sampling circuit and coupled to control the power switch to regulate an output of the power converter in response to the sample signal. The false sampling prevention circuit is coupled to receive a sampling complete signal that indicates when the sampling of the feedback signal is complete. The false sampling prevention circuit is further coupled to the drive logic to extend the off time of the power switch until the sampling complete signal indicates that the sampling of the feedback signal by the feedback sampling circuit is complete.

摘要翻译： 用于功率转换器的示例性控制器包括反馈采样电路，驱动逻辑和假采样防止电路。 反馈采样电路被耦合以对从控制器的端子接收的反馈信号进行采样，并产生表示反馈信号的值的采样信号。 驱动逻辑耦合到反馈采样电路并被耦合以响应于采样信号来控制功率开关来调节功率转换器的输出。 虚假采样防止电路被耦合以接收指示反馈信号的采样何时完成的采样完成信号。 假采样防止电路还耦合到驱动逻辑以延长电源开关的关断时间，直到采样完成信号指示反馈采样电路的反馈信号的采样完成为止。

公开(公告)号：US09093906B2

公开(公告)日：2015-07-28

申请号：US13249060

申请日：2011-09-29

申请人： Guangchao (Darson) Zhang ,  Yury Gaknoki

发明人： Guangchao (Darson) Zhang ,  Yury Gaknoki

IPC分类号： H02M7/10 ,  H02M3/335 ,  H02M1/00

CPC分类号： H02M3/33507 ,  H02M2001/0003

摘要： Methods and apparatuses are disclosed for providing improved feedback sampling in a primary-side regulated power converter. A test sample may be taken prior to the default feedback sample. The voltage of the test sample may be compared to the voltage of the default feedback sample to determine if the voltage difference between the two samples exceeds a threshold. If the default sample is lower than the test sample by more than the threshold, the default sample may be flagged as being a potential false sample. If more than a set number of potentially false samples are obtained, the power converter may enter an auto-restart mode.

摘要翻译： 公开了用于在初级侧调节功率转换器中提供改进的反馈采样的方法和装置。 测试样品可以在默认反馈样品之前进行。 可以将测试样本的电压与默认反馈样本的电压进行比较，以确定两个样本之间的电压差是否超过阈值。 如果默认样本低于测试样本超过阈值，则默认样本可能被标记为潜在的假样本。 如果获得多于一组潜在的假样本，则功率转换器可以进入自动重启模式。

公开(公告)号：US08462523B2

公开(公告)日：2013-06-11

申请号：US13332107

申请日：2011-12-20

申请人： Yury Gaknoki ,  Mingming Mao ,  Tiziano Pastore

发明人： Yury Gaknoki ,  Mingming Mao ,  Tiziano Pastore

IPC分类号： H02H7/122

CPC分类号： H02M3/33507 ,  G05F1/455 ,  H02M3/33523 ,  H02M7/217 ,  H05B33/0815 ,  H05B33/0851 ,  H05B33/0854 ,  H05B41/2827 ,  H05B41/3922 ,  Y02B20/346

摘要： An example controller for a switched mode power supply includes a zero-crossing detector and a drive signal generator. The zero-crossing detector is coupled to generate a zero-crossing signal representative of a phase angle of a dimmer output voltage for a half line cycle of the power supply. The drive signal generator controls switching of a switch to regulate an output of the power supply in response to a feedback signal representative of the output. The drive signal generator further controls switching of the switch to adjust dimming of the output of the power supply in response to the phase angle indicated by the zero-crossing signal.

摘要翻译： 用于开关模式电源的示例性控制器包括过零检测器和驱动信号发生器。 耦合过零检测器以产生代表电源半行周期的调光输出电压的相位角的过零信号。 驱动信号发生器响应于表示输出的反馈信号来控制开关的开关以调节电源的输出。 驱动信号发生器进一步控制开关的切换，以响应于由过零信号指示的相位角来调节电源的输出的调光。

公开(公告)号：US08299730B2

公开(公告)日：2012-10-30

申请号：US12703072

申请日：2010-02-09

申请人： Yury Gaknoki ,  Mingming Mao ,  Tiziano Pastore

发明人： Yury Gaknoki ,  Mingming Mao ,  Tiziano Pastore

IPC分类号： H05B37/02

CPC分类号： H02M1/4258 ,  H02M5/2573 ,  H05B33/0815 ,  Y02B20/346 ,  Y02B70/126

摘要： An example controller for a switched mode power supply includes a zero-crossing detector, drive logic, and an on-time extension block. The zero-crossing detector is coupled to generate a first signal prior to a zero-crossing of an input voltage of the power supply. The drive logic is to generate a drive logic output signal in response to a feedback signal, where the drive logic output signal is representative of an initial on-time. The on-time extension block is coupled to the zero-crossing detector and to the drive logic to generate a drive signal in response to the drive logic output signal. The drive signal controls switching of a switch to remove charge from a filter capacitor of the power supply. The drive signal is representative of a total on-time of the switch equal to a sum of the initial on-time and an extended on-time, where the extended on-time is responsive to the first signal.

摘要翻译： 用于开关模式电源的示例性控制器包括过零检测器，驱动逻辑和导通时间延伸块。 过零检测器被耦合以在电源的输入电压过零之前产生第一信号。 驱动逻辑是响应于反馈信号产生驱动逻辑输出信号，其中驱动逻辑输出信号代表初始接通时间。 导通时间延伸块耦合到过零检测器和驱动逻辑以响应于驱动逻辑输出信号产生驱动信号。 驱动信号控制开关的切换以从电源的滤波电容器去除电荷。 驱动信号代表开关的总接通时间等于初始接通时间和延长接通时间的总和，其中延长的导通时间响应于第一信号。

公开(公告)号：US20110254525A1

公开(公告)日：2011-10-20

申请号：US12764026

申请日：2010-04-20

申请人： Yury Gaknoki ,  Mingming Mao

发明人： Yury Gaknoki ,  Mingming Mao

IPC分类号： G05F1/00 ,  G05F5/00

CPC分类号： H05B33/0815 ,  H02M3/33507 ,  H05B33/0848 ,  Y02B20/346

摘要： A controller for dimming control of a switching power supply includes a phase angle measurement block and a drive logic block. The phase angle measurement block is to be coupled to receive an input sense signal. The phase angle measurement block generates a phase angle signal representative of a phase angle of an input voltage of the power supply in response to the input sense signal. The drive logic block is to be coupled to control switching of a switch included in the power supply. The drive logic block controls the switch in a closed loop dimming control when the phase angle is less than or equal to a phase threshold and in a open loop dimming control when the phase angle is greater than the phase threshold.

摘要翻译： 用于开关电源的调光控制的控制器包括相位角测量块和驱动逻辑块。 相位角测量块将被耦合以接收输入感测信号。 相位角测量块响应于输入感测信号产生表示电源的输入电压的相位角的相位角信号。 驱动逻辑块被耦合以控制包括在电源中的开关的切换。 当相位角小于或等于相位阈值时，驱动逻辑块控制闭环调光控制中的开关，并且当相位角大于相位阈值时，控制开环调光控制。

公开(公告)号：US20110194309A1

公开(公告)日：2011-08-11

申请号：US12703108

申请日：2010-02-09

申请人： Yury Gaknoki ,  Mingming Mao ,  David Michael Hugh Matthews ,  Tiziano Pastore

发明人： Yury Gaknoki ,  Mingming Mao ,  David Michael Hugh Matthews ,  Tiziano Pastore

IPC分类号： H02M3/335 ,  H05B37/02

CPC分类号： H02M3/33507 ,  H02M1/4258 ,  H02M3/33515 ,  H05B33/0815 ,  Y02B20/346 ,  Y02B70/126

摘要： A power converter controller is disclosed. An example power converter controller includes a feedback sensor circuit coupled to receive a feedback signal representative of an output of the power converter. The controller also includes a feedback sampling signal generator coupled to generate a feedback sampling signal coupled to be received by the feedback sensor circuit. The feedback sensor circuit is coupled to sample the feedback signal in response to the feedback sampling signal. The controller also includes a state machine coupled to the feedback sensor circuit to control switching of a switch of the power converter circuit according to one of a plurality of operating condition states in response to the feedback sensor circuit. The controller also includes a feedback time period signal generator coupled to generate a feedback time period signal coupled to be received by the state machine. A period of a feedback time period signal is substantially greater than a period of the feedback sampling signal. The state machine is coupled to be updated in response to the feedback time period signal.

摘要翻译： 公开了一种电力转换器控制器。 示例性功率转换器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反馈传感器电路。 控制器还包括反馈采样信号发生器，其被耦合以产生耦合以由反馈传感器电路接收的反馈采样信号。 反馈传感器电路被耦合以响应于反馈采样信号对反馈信号进行采样。 控制器还包括耦合到反馈传感器电路的状态机，以响应于反馈传感器电路来控制根据多个操作状态中的一个的功率转换器电路的开关的切换。 控制器还包括耦合以产生耦合以由状态机接收的反馈时间周期信号的反馈时间周期信号发生器。 反馈时间周期信号的周期显着大于反馈采样信号的周期。 状态机被耦合以响应于反馈时间周期信号被更新。

公开(公告)号：US09287784B2

公开(公告)日：2016-03-15

申请号：US13243813

申请日：2011-09-23

申请人： Michael Zhang ,  Yury Gaknoki ,  Mingming Mao

发明人： Michael Zhang ,  Yury Gaknoki ,  Mingming Mao

IPC分类号： H02M3/335

CPC分类号： H02M3/33507

摘要： Methods and apparatuses are disclosed for generating an adjustable bias current. The value of the adjustable bias current may be determined based in part on an error signal representative of a difference between an actual output value and a desired output value of a power converter. When the error signal is below a lower threshold voltage, the adjustable bias current may be set to a first value. When the error signal is above an upper threshold voltage, the adjustable bias current may be set to a second, higher value. When the error signal is between the lower threshold voltage and the upper threshold voltage, the adjustable bias current may change linearly with the error signal.

摘要翻译： 公开了用于产生可调偏置电流的方法和装置。 部分地可以基于表示功率转换器的实际输出值和期望输出值之间的差的误差信号来确定可调偏置电流的值。 当误差信号低于较低的阈值电压时，可调节的偏置电流可被设置为第一值。 当误差信号高于高阈值电压时，可调节的偏置电流可被设置为第二较高的值。 当误差信号在下阈值电压和上限阈值电压之间时，可调偏置电流可能随误差信号而线性变化。

公开(公告)号：US08823353B2

公开(公告)日：2014-09-02

申请号：US13278087

申请日：2011-10-20

申请人： Guangchao Zhang ,  Yury Gaknoki ,  Mingming Mao

发明人： Guangchao Zhang ,  Yury Gaknoki ,  Mingming Mao

IPC分类号： H02M3/156

CPC分类号： H02M3/33507 ,  H02M2001/0035 ,  Y02B70/16

摘要： A power converter control circuit includes a ramp signal circuit, a blanking circuit, and a pulse driver circuit. The ramp signal circuit provides a ramp signal in response to a power converter feedback signal and an enable signal. The blanking circuit provides a blanking signal in response to the ramp signal and a clock signal. The blanking signal is provided when both the ramp signal is increasing in value and the enable signal indicates a light load operating condition. The pulse driver circuit provides a power switch control pulse in accordance with the clock signal and in the absence of the blanking signal.

摘要翻译： 电力转换器控制电路包括斜坡信号电路，消隐电路和脉冲驱动电路。 斜坡信号电路响应于功率转换器反馈信号和使能信号而提供斜坡信号。 消隐电路响应于斜坡信号和时钟信号提供消隐信号。 当斜坡信号的值都增加且使能信号指示轻负载工作条件时，提供消隐信号。 脉冲驱动电路根据时钟信号和没有消隐信号提供电源开关控制脉冲。

公开(公告)号：US20130100714A1

公开(公告)日：2013-04-25

申请号：US13278087

申请日：2011-10-20

申请人： Guangchao Zhang ,  Yury Gaknoki ,  Mingming Mao

发明人： Guangchao Zhang ,  Yury Gaknoki ,  Mingming Mao

IPC分类号： H02M3/335

CPC分类号： H02M3/33507 ,  H02M2001/0035 ,  Y02B70/16

摘要： A power converter control circuit includes a ramp signal circuit, a blanking circuit, and a pulse driver circuit. The ramp signal circuit provides a ramp signal in response to a power converter feedback signal and an enable signal. The blanking circuit provides a blanking signal in response to the ramp signal and a clock signal. The blanking signal is provided when both the ramp signal is increasing in value and the enable signal indicates a light load operating condition. The pulse driver circuit provides a power switch control pulse in accordance with the clock signal and in the absence of the blanking signal.

摘要翻译： 电力转换器控制电路包括斜坡信号电路，消隐电路和脉冲驱动电路。 斜坡信号电路响应于功率转换器反馈信号和使能信号而提供斜坡信号。 消隐电路响应于斜坡信号和时钟信号提供消隐信号。 当斜坡信号的值都增加且使能信号指示轻负载工作条件时，提供消隐信号。 脉冲驱动电路根据时钟信号和没有消隐信号提供电源开关控制脉冲。