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1. 发明授权

US08374006B2 Method and apparatus to regulate an output voltage of a power converter at light/no load conditions 有权
标题翻译：在轻/无负载条件下调节功率转换器的输出电压的方法和装置
公开(公告)号：US08374006B2
公开(公告)日：2013-02-12
申请号：US13411297
申请日：2012-03-02
申请人： Leif Lund , Alex B. Djenguerian , William M. Polivka
发明人： Leif Lund , Alex B. Djenguerian , William M. Polivka
IPC分类号： H02H7/122
CPC分类号： H02M3/33507 , H02M3/33523 , H02M2001/0025
摘要： An example controller for a primary side control power converter includes a feedback circuit, a driver circuit, and an adjustable voltage reference circuit. The feedback circuit is coupled to compare a feedback signal representative of a bias winding voltage of the power converter with a voltage reference. The driver circuit is coupled to output a switching signal to control a switch of the power converter to regulate an output of the power converter in response the feedback circuit. The adjustable voltage reference circuit is coupled to adjust the voltage reference such that the bias winding voltage is adjusted nonlinearly in response to a load condition at the output of the power converter. The adjustable voltage reference circuit is further coupled to detect the load condition in response to the switching signal.
摘要翻译：用于初级侧控制功率转换器的示例性控制器包括反馈电路，驱动电路和可调电压基准电路。反馈电路被耦合以将表示功率转换器的偏置绕组电压的反馈信号与参考电压进行比较。驱动电路被耦合以输出开关信号以控制功率转换器的开关，以响应于反馈电路来调节功率转换器的输出。耦合可调电压参考电路以调整电压参考，使得偏置绕组电压响应于功率转换器的输出处的负载条件而非线性地调节。可调电压参考电路还被耦合以响应于开关信号检测负载条件。

2. 发明申请

US20120163043A1 METHOD AND APPARATUS TO REGULATE AN OUTPUT VOLTAGE OF A POWER CONVERTER AT LIGHT/NO LOAD CONDITIONS 有权
标题翻译：在轻/无负载条件下调节功率转换器的输出电压的方法和装置
公开(公告)号：US20120163043A1
公开(公告)日：2012-06-28
申请号：US13411297
申请日：2012-03-02
申请人： Leif Lund , Alex B. Djenguerian , William M. Polivka
发明人： Leif Lund , Alex B. Djenguerian , William M. Polivka
IPC分类号： H02M3/335
CPC分类号： H02M3/33507 , H02M3/33523 , H02M2001/0025
摘要： An example controller for a primary side control power converter includes a feedback circuit, a driver circuit, and an adjustable voltage reference circuit. The feedback circuit is coupled to compare a feedback signal representative of a bias winding voltage of the power converter with a voltage reference. The driver circuit is coupled to output a switching signal to control a switch of the power converter to regulate an output of the power converter in response the feedback circuit. The adjustable voltage reference circuit is coupled to adjust the voltage reference such that the bias winding voltage is adjusted nonlinearly in response to a load condition at the output of the power converter. The adjustable voltage reference circuit is further coupled to detect the load condition in response to the switching signal.
摘要翻译：用于初级侧控制功率转换器的示例性控制器包括反馈电路，驱动电路和可调电压基准电路。反馈电路被耦合以将表示功率转换器的偏置绕组电压的反馈信号与参考电压进行比较。驱动电路被耦合以输出开关信号以控制功率转换器的开关，以响应于反馈电路来调节功率转换器的输出。耦合可调电压参考电路以调整电压参考，使得偏置绕组电压响应于功率转换器的输出处的负载条件而非线性地调节。可调电压参考电路还被耦合以响应于开关信号检测负载条件。

3. 发明申请

US20100194367A1 METHOD AND APPARATUS TO REGULATE AN OUTPUT VOLTAGE OF A POWER CONVERTER AT LIGHT/NO LOAD CONDITIONS 有权
标题翻译：在轻/无负载条件下调节功率转换器的输出电压的方法和装置
公开(公告)号：US20100194367A1
公开(公告)日：2010-08-05
申请号：US12363657
申请日：2009-01-30
申请人： Leif Lund , Alex B. Djenguerian , William M. Polivka
发明人： Leif Lund , Alex B. Djenguerian , William M. Polivka
IPC分类号： G05F1/00
CPC分类号： H02M3/33507 , H02M3/33523 , H02M2001/0025
摘要： An example apparatus to regulate an output voltage of a power converter at light/no load conditions includes a driver circuit, a feedback circuit, and an adjustable voltage reference circuit. The driver circuit is coupled to output a drive signal to switch a power switch between an ON state and an OFF state to regulate an output of the power converter. The feedback circuit is coupled to the driver circuit and is further coupled to output an enable signal to switch the power switch to an ON state in response to an output voltage signal. The adjustable voltage reference circuit is coupled to adjust a voltage reference such that a bias winding voltage of the power converter is adjusted nonlinearly in response to a load that is to be coupled to the output of the power converter.
摘要翻译：在轻/无负载条件下调节功率转换器的输出电压的示例性装置包括驱动电路，反馈电路和可调电压参考电路。驱动电路被耦合以输出驱动信号，以在ON状态和OFF状态之间切换电力开关，以调节功率转换器的输出。反馈电路耦合到驱动器电路，并且还被耦合以输出使能信号，以响应于输出电压信号将功率开关切换到ON状态。耦合可调电压参考电路以调整电压参考，使得响应于要耦合到功率转换器的输出的负载，非线性地调整功率转换器的偏置绕组电压。

4. 发明授权

US08159843B2 Method and apparatus to regulate an output voltage of a power converter at light/no load conditions 有权
标题翻译：在轻/无负载条件下调节功率转换器的输出电压的方法和装置
公开(公告)号：US08159843B2
公开(公告)日：2012-04-17
申请号：US12363657
申请日：2009-01-30
申请人： Leif Lund , Alex B. Djenguerian , William M. Polivka
发明人： Leif Lund , Alex B. Djenguerian , William M. Polivka
IPC分类号： H02H7/122
CPC分类号： H02M3/33507 , H02M3/33523 , H02M2001/0025
摘要： An example apparatus to regulate an output voltage of a power converter at light/no load conditions includes a driver circuit, a feedback circuit, and an adjustable voltage reference circuit. The driver circuit is coupled to output a drive signal to switch a power switch between an ON state and an OFF state to regulate an output of the power converter. The feedback circuit is coupled to the driver circuit and is further coupled to output an enable signal to switch the power switch to an ON state in response to an output voltage signal. The adjustable voltage reference circuit is coupled to adjust a voltage reference such that a bias winding voltage of the power converter is adjusted nonlinearly in response to a load that is to be coupled to the output of the power converter.
摘要翻译：在轻/无负载条件下调节功率转换器的输出电压的示例性装置包括驱动电路，反馈电路和可调电压参考电路。驱动电路被耦合以输出驱动信号，以在ON状态和OFF状态之间切换电力开关，以调节功率转换器的输出。反馈电路耦合到驱动器电路，并且还被耦合以输出使能信号，以响应于输出电压信号将功率开关切换到ON状态。耦合可调电压参考电路以调整电压参考，使得响应于要耦合到功率转换器的输出的负载，非线性地调整功率转换器的偏置绕组电压。

5. 发明授权

US08194421B2 Method and apparatus for implementing an unregulated dormant mode with an event counter in a power converter 有权
标题翻译：用于通过功率转换器中的事件计数器来实现未调节的休眠模式的方法和装置
公开(公告)号：US08194421B2
公开(公告)日：2012-06-05
申请号：US13170018
申请日：2011-06-27
申请人： Alex B. Djenguerian , Leif Lund
发明人： Alex B. Djenguerian , Leif Lund
IPC分类号： H02M3/335
CPC分类号： H02M3/33523 , H02M1/08 , H02M3/33507 , H02M2001/0009 , H02M2001/0032 , Y02B70/16 , Y10T307/406
摘要： A method for controlling an output of a power converter includes generating a drive signal with a control circuit, entering a dormant mode of operation that includes powering down the control circuit if a flow of energy to an output of the power converter is less than a threshold value for more than a first period of time, and powering up the control circuit after it is in the dormant mode of operation for a second period of time.
摘要翻译：用于控制功率转换器的输出的方法包括利用控制电路产生驱动信号，进入休眠模式，其包括如果对功率转换器的输出的能量流量小于阈值的电源，则控制电路断电值超过第一时间段，并且在控制电路处于第二时间段的休眠模式之后上电。

6. 发明申请

US20100194445A1 POWER SUPPLY CONTROLLER WITH INPUT VOLTAGE COMPENSATION FOR EFFICIENCY AND MAXIMUM POWER OUTPUT 有权
标题翻译：具有输入电压补偿功能和最大功率输出的电源控制器
公开(公告)号：US20100194445A1
公开(公告)日：2010-08-05
申请号：US12363550
申请日：2009-01-30
申请人： Balu Balakrishnan , Alex B. Djenguerian , Leif Lund
发明人： Balu Balakrishnan , Alex B. Djenguerian , Leif Lund
IPC分类号： H03B1/00
CPC分类号： H02M3/33507 , H02M1/44 , H02M7/527 , H02M2001/007
摘要： A controller for a power supply includes a logic block and a time-to-frequency converter. The logic block is to generate a drive signal in response to a clock signal. The drive signal is to be coupled to control switching of a power switch of the power supply to regulate an output of the power supply. The time-to-frequency converter is coupled to the logic block and generates the clock signal having a frequency responsive to a time period of the drive signal.
摘要翻译：用于电源的控制器包括逻辑块和时间 - 频率转换器。逻辑块是响应于时钟信号产生驱动信号。驱动信号被耦合以控制电源的电源开关的切换以调节电源的输出。时间 - 频率转换器耦合到逻辑块，并产生具有响应于驱动信号的时间周期的频率的时钟信号。

7. 发明授权

US08908395B2 Method and apparatus for implementing an unregulated dormant mode with an event counter in a power converter 有权
标题翻译：用于通过功率转换器中的事件计数器来实现未调节的休眠模式的方法和装置
公开(公告)号：US08908395B2
公开(公告)日：2014-12-09
申请号：US13465882
申请日：2012-05-07
申请人： Alex B. Djenguerian , Leif Lund
发明人： Alex B. Djenguerian , Leif Lund
IPC分类号： H02M5/27 , G05F1/577 , H02J3/14 , H02M3/335
CPC分类号： H02M3/33523 , H02M1/08 , H02M3/33507 , H02M2001/0009 , H02M2001/0032 , Y02B70/16 , Y10T307/406
摘要： An example power converter includes an energy transfer element, a switch, and a control circuit. The control circuit includes a drive signal generator and an unregulated dormant mode control circuit. The unregulated dormant mode control circuit renders dormant the drive signal generator thereby ceasing the regulation of the output by the drive signal generator when the energy requirement of the one or more loads falls below a threshold for more than a first period of time. The drive signal generator is unresponsive to changes in the energy requirements of the one or more loads when dormant. The unregulated dormant mode control circuit powers up the drive signal generator after a second period of time has elapsed, such that the drive signal generator is again responsive to changes in the energy requirement of the one or more loads after the second period of time has elapsed.
摘要翻译：示例性功率转换器包括能量传递元件，开关和控制电路。控制电路包括驱动信号发生器和未调节的休眠模式控制电路。当所述一个或多个负载的能量需求低于阈值超过第一时间段时，所述非调节休眠模式控制电路使所述驱动信号发生器休眠，由此停止所述驱动信号发生器输出的调节。当休眠时，驱动信号发生器对一个或多个负载的能量需求的变化无响应。未经调节的休眠模式控制电路在经过第二时间段之后对驱动信号发生器供电，使得驱动信号发生器再次响应于在第二时间段之后的一个或多个负载的能量需求的变化已经过去。

8. 发明申请

US20120250368A1 POWER SUPPLY CONTROLLER WITH INPUT VOLTAGE COMPENSATION FOR EFFICIENCY AND MAXIMUM POWER OUTPUT 有权
标题翻译：具有输入电压补偿功能和最大功率输出的电源控制器
公开(公告)号：US20120250368A1
公开(公告)日：2012-10-04
申请号：US13523570
申请日：2012-06-14
申请人： Balu Balakrishnan , Alex B. Djenguerian , Leif Lund
发明人： Balu Balakrishnan , Alex B. Djenguerian , Leif Lund
IPC分类号： H02M3/335
CPC分类号： H02M3/33507 , H02M1/44 , H02M7/527 , H02M2001/007
摘要： A controller for regulating an output of a power supply includes a logic block and an oscillator. The logic block generates the drive signal to control switching of a power switch in response to a clock signal. The clock signal has a frequency that decreases responsive to a time period of the drive signal, where a decrease in the time period of the drive signal represents an increase in an input voltage of the power supply. The oscillator is coupled to generate the clock signal in response to a waveform having an amplitude swing. The oscillator alters the waveform in response to the time period of the drive signal.
摘要翻译：用于调节电源的输出的控制器包括逻辑块和振荡器。逻辑块产生驱动信号，以响应于时钟信号来控制功率开关的切换。时钟信号具有响应于驱动信号的时间段而减小的频率，其中驱动信号的时间段的减小表示电源的输入电压的增加。振荡器被耦合以响应于具有幅度摆幅的波形而产生时钟信号。振荡器响应于驱动信号的时间周期来改变波形。

9. 发明授权

US08669751B2 Power supply controller with input voltage compensation for efficiency and maximum power output 有权
标题翻译：电源控制器具有输入电压补偿效率和最大功率输出
公开(公告)号：US08669751B2
公开(公告)日：2014-03-11
申请号：US13523570
申请日：2012-06-14
申请人： Balu Balakrishnan , Alex B. Djenguerian , Leif Lund
发明人： Balu Balakrishnan , Alex B. Djenguerian , Leif Lund
IPC分类号： G05F5/00 , G05F1/00 , H02M3/335 , H03K5/01
CPC分类号： H02M3/33507 , H02M1/44 , H02M7/527 , H02M2001/007
摘要： A controller for regulating an output of a power supply includes a logic block and an oscillator. The logic block generates the drive signal to control switching of a power switch in response to a clock signal. The clock signal has a frequency that decreases responsive to a time period of the drive signal, where a decrease in the time period of the drive signal represents an increase in an input voltage of the power supply. The oscillator is coupled to generate the clock signal in response to a waveform having an amplitude swing. The oscillator alters the waveform in response to the time period of the drive signal.
摘要翻译：用于调节电源的输出的控制器包括逻辑块和振荡器。逻辑块产生驱动信号，以响应于时钟信号来控制功率开关的切换。时钟信号具有响应于驱动信号的时间段而减小的频率，其中驱动信号的时间段的减小表示电源的输入电压的增加。振荡器被耦合以响应于具有幅度摆幅的波形而产生时钟信号。振荡器响应于驱动信号的时间周期来改变波形。

10. 发明授权

US08542468B2 Fault condition protection 失效
标题翻译：故障条件保护
公开(公告)号：US08542468B2
公开(公告)日：2013-09-24
申请号：US13451383
申请日：2012-04-19
申请人： Balu Balakrishnan , Alex B. Djenguerian , Leif Lund
发明人： Balu Balakrishnan , Alex B. Djenguerian , Leif Lund
IPC分类号： H02H7/00
CPC分类号： H02M1/32 , B29C45/82 , B29C2045/824 , F16D31/02 , H02H7/1213 , H02M1/36 , H02M3/33507
摘要： A switched mode power supply includes a transformer and an integrated circuit regulator. The integrated circuit regulator is coupled to the transformer and includes switching regulator logic, a counter, and a switching transistor. The regulator logic generates a switching signal in response to the feedback signal. The counter receives the feedback signal, where the feedback signal periodically cycles between a first state and a second state when the switched mode power supply operates normally. An output of the counter indicates an auto-restart mode of the regulator in response to the feedback signal remaining in the first state for a predetermined count due to a fault condition. The switching transistor is coupled to be turned on and off in response to the switching signal when the output of the counter does not indicate the auto-restart mode and is disabled when the output of the counter indicates the auto-restart mode.
摘要翻译：开关电源包括变压器和集成电路调节器。集成电路调节器耦合到变压器并且包括开关调节器逻辑，计数器和开关晶体管。调节器逻辑响应于反馈信号产生开关信号。计数器接收反馈信号，当开关模式电源正常工作时，反馈信号周期性地在第一状态和第二状态之间循环。计数器的输出表示由于故障状况而响应于反馈信号在第一状态下保持预定计数的自动重启模式。当计数器的输出不指示自动重启模式时，开关晶体管被响应于开关信号而被接通和断开，并且当计数器的输出指示自动重启模式时，开关晶体管被禁止。

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