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31.发明授权Method and apparatus to provide temporary peak power from a switching regulator 失效从开关调节器提供临时峰值功率的方法和装置公开(公告)号：US07388360B2
公开(公告)日：2008-06-17
申请号：US11805725
申请日：2007-05-23
CPC分类号： H02M3/33507
摘要： Various techniques directed to providing temporary peak power from a switching regulator are disclosed. In one aspect, a switching regulator includes a switch that is to be coupled between a power supply input and an energy transfer element of the power supply. A controller is coupled to be responsive to a feedback signal to be received from an output of the power supply. The controller is coupled to switch the switch in response to the feedback signal to regulate the output of the power supply. An oscillator is coupled to provide an oscillating signal to the controller to determine a maximum switching frequency of the switch. The oscillating signal is coupled to oscillate at a first frequency under a first moderate load condition at the power supply output. The oscillating signal is coupled to oscillate at a second frequency under a second peak load condition at the power supply output.
摘要翻译： 公开了用于提供来自开关调节器的临时峰值功率的各种技术。 在一个方面，开关调节器包括要耦合在电源输入和电源的能量传递元件之间的开关。 控制器被耦合以响应于从电源的输出接收的反馈信号。 控制器耦合以响应于反馈信号切换开关以调节电源的输出。 振荡器被耦合以向控制器提供振荡信号以确定开关的最大开关频率。 振荡信号被耦合以在电源输出处的第一中等负载条件下以第一频率振荡。 振荡信号被耦合以在电源输出处的第二峰值负载条件下以第二频率振荡。
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32.发明授权公开(公告)号：US07170381B2
公开(公告)日：2007-01-30
申请号：US10617245
申请日：2003-07-09
IPC分类号： H01F5/00
CPC分类号： H01F27/306 , H01F27/022 , H01F27/324
摘要： A reduced cost energy transfer element for power converter circuits. In one embodiment, an energy transfer element according to an embodiment of the present invention includes a magnetic element having an external surface with at least a first winding and a second winding wound around the external surface of the magnetic element without a bobbin. As such, energy to be received from a power converter circuit input is to be transferred from the first winding to the second winding through a magnetic coupling provided by the magnetic element to a power converter circuit output.
摘要翻译： 用于功率转换器电路的降低成本的能量传递元件。 在一个实施例中，根据本发明的实施例的能量传递元件包括具有至少第一绕组的外表面和缠绕在磁性元件的外表面上的第二绕组的磁性元件，而没有线轴。 因此，要从功率转换器电路输入接收的能量将通过由磁性元件提供的电磁耦合而从第一绕组传递到第二绕组到功率转换器电路输出。
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33.发明申请公开(公告)号：US20130057316A1
公开(公告)日：2013-03-07
申请号：US13664213
申请日：2012-10-30
申请人： William M. Polivka
发明人： William M. Polivka
IPC分类号： H03K9/06
摘要： A time-differential analog comparator includes a variable frequency signal source, a timing circuit, a counting circuit, and an evaluation circuit. The variable frequency signal source provides a repeating signal having a frequency corresponding to a value of an analog input. The timing circuit defines a timing sequence including a first time interval and a second time interval and generates a mode select signal at a time between the first time interval and the second time interval to stimulate a change in the analog input. The counting circuit is coupled to the timing circuit to count the periods of the repeating signal. The evaluation circuit coupled generates a decision signal in response to a count of the periods of the repeating signal indicated by the counting circuit. The first time interval is not equal to the second time interval to generate an offset in the decision signal.
摘要翻译： 时差微分模拟比较器包括可变频率信号源，定时电路，计数电路和评估电路。 可变频率信号源提供具有对应于模拟输入的值的频率的重复信号。 定时电路定义包括第一时间间隔和第二时间间隔的定时序列，并且在第一时间间隔和第二时间间隔之间的时间产生模式选择信号，以刺激模拟输入的变化。 计数电路耦合到定时电路以对重复信号的周期进行计数。 所耦合的评估电路响应于由计数电路指示的重复信号的周期的计数而产生判定信号。 第一时间间隔不等于在判定信号中产生偏移的第二时间间隔。
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公开(公告)号：US08243477B2
公开(公告)日：2012-08-14
申请号：US13182378
申请日：2011-07-13
IPC分类号： H02M3/335
CPC分类号： H02M3/33523 , H02M3/33592 , Y02B70/1475
摘要： A controller that forces primary regulation is disclosed. An example controller includes a switched element to be coupled to a second winding of an energy transfer element of a power supply. A secondary control circuit is coupled to the switched element. The secondary control circuit is to be coupled across an output of the second winding to switch the switched element in response to a difference between an actual output value at the output of the second winding and a desired output value to force a current in a third winding of the energy transfer element that is representative of the difference between the actual output value at the output of the second winding and the desired output value. A primary switch is to be coupled to a first winding of the energy transfer element. A primary control circuit is coupled to the primary switch. The primary control circuit is to be coupled to receive the current forced in the third winding of the energy transfer element in response to the secondary control circuit. The primary control circuit is coupled to switch the primary switch to regulate an output of the power supply coupled to the output of the second winding in response to the forced current.
摘要翻译： 公开了强制初级调节的控制器。 示例性控制器包括要耦合到电源的能量传递元件的第二绕组的开关元件。 二次控制电路耦合到开关元件。 次级控制电路将被耦合在第二绕组的输出端上，以响应于在第二绕组的输出处的实际输出值与期望的输出值之间的差来切换开关元件，以迫使第三绕组中的电流 的能量传递元件，其表示第二绕组的输出端的实际输出值与期望的输出值之间的差。 初级开关将耦合到能量传递元件的第一绕组。 主控制电路耦合到主开关。 主控制电路将被耦合以响应于次级控制电路接收强制在能量传递元件的第三绕组中的电流。 主控制电路被耦合以切换主开关以响应于强制电流来调节耦合到第二绕组的输出的电源的输出。
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35.发明申请公开(公告)号：US20120161815A1
公开(公告)日：2012-06-28
申请号：US13409959
申请日：2012-03-01
申请人： William M. Polivka
发明人： William M. Polivka
IPC分类号： H03K9/06
摘要： A time-differential analog comparator is disclosed. An example apparatus according to aspects of the present invention includes a source of a variable frequency signal having a frequency responsive to an analog input. A counting circuit is coupled to count cycles of the variable frequency signal. The counting circuit is coupled to count in a first direction for a first time interval and is coupled to count in a second direction opposite to the first direction for a second time interval that occurs after an end of the first time interval. The counting circuit outputs a digital count signal and an evaluation circuit is coupled to generate a decision signal in response to the digital count signal after an end of the second time interval. The first time interval is not equal to the second time interval to generate an offset in the decision signal.
摘要翻译： 公开了一种时差微分模拟比较器。 根据本发明的方面的示例性装置包括具有响应于模拟输入的频率的可变频率信号的源。 计数电路耦合到可变频率信号的周期。 计数电路被耦合以在第一方向上计数第一时间间隔，并且在与第一方向相反的第二方向上耦合以在第一时间间隔结束之后发生的第二时间间隔进行计数。 计数电路输出数字计数信号，并且评估电路被耦合以在第二时间间隔结束之后响应于数字计数信号而产生判定信号。 第一时间间隔不等于在判定信号中产生偏移的第二时间间隔。
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36.发明授权Method and apparatus to regulate an output voltage of a power converter at light/no load conditions 有权在轻/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
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。
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公开(公告)号：US20100157630A1
公开(公告)日：2010-06-24
申请号：US12341353
申请日：2008-12-22
IPC分类号： H02M3/335
CPC分类号： H02M3/33523 , H02M3/33592 , Y02B70/1475
摘要： A flyback converter with forced primary regulation is disclosed. An example flyback converter includes a coupled inductor including a first winding, a second winding, and a third winding. The first winding is coupled to an input voltage and the second winding is coupled to an output of the power converter. A switched element is coupled to the second winding. A secondary control circuit is coupled to the switched element and the second winding. The secondary control circuit is coupled to switch the switched element in response to a difference between a desired output value and an actual output value to force a current in the third winding that is representative of the difference between the desired output value and the actual output value. A primary switch is coupled to the first winding. A primary control circuit is coupled to the primary switch and the third winding. The primary control circuit is coupled to switch the primary switch to regulate the output of the power converter in response to the forced current.
摘要翻译： 公开了一种具有强制初级调节的反激式转换器。 示例性反激转换器包括耦合电感器，其包括第一绕组，第二绕组和第三绕组。 第一绕组耦合到输入电压，并且第二绕组耦合到功率转换器的输出端。 开关元件耦合到第二绕组。 次级控制电路耦合到开关元件和第二绕组。 二次控制电路被耦合以响应于期望输出值和实际输出值之间的差来切换开关元件，以迫使第三绕组中的电流表示期望输出值与实际输出值之间的差 。 初级开关耦合到第一绕组。 主控制电路耦合到初级开关和第三绕组。 主控制电路被耦合以切换主开关以响应于强制电流来调节功率转换器的输出。
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38.发明申请METHOD AND APPARATUS TO PROVIDE TEMPORARY PEAK POWER FROM A SWITCHING REGULATOR 失效从开关稳压器提供临时峰值功率的方法和装置公开(公告)号：US20090212755A1
公开(公告)日：2009-08-27
申请号：US12430709
申请日：2009-04-27
IPC分类号： G05F1/00
CPC分类号： H02M3/33507
摘要： Various techniques directed to providing temporary peak power from a switching regulator are disclosed. In one aspect, a switching regulator includes a switch that is to be coupled between a power supply input and an energy transfer element of the power supply. A controller is coupled to be responsive to a feedback signal to be received from an output of the power supply. The controller is coupled to switch the switch in response to the feedback signal to regulate the output of the power supply. An oscillator is coupled to provide an oscillating signal to the controller to determine a maximum switching frequency of the switch. The oscillating signal is coupled to oscillate at a first frequency under a first moderate load condition at the power supply output. The oscillating signal is coupled to oscillate at a second frequency under a second peak load condition at the power supply output.
摘要翻译： 公开了用于提供来自开关调节器的临时峰值功率的各种技术。 在一个方面，开关调节器包括要耦合在电源输入和电源的能量传递元件之间的开关。 控制器被耦合以响应于从电源的输出接收的反馈信号。 控制器耦合以响应于反馈信号切换开关以调节电源的输出。 振荡器被耦合以向控制器提供振荡信号以确定开关的最大开关频率。 振荡信号被耦合以在电源输出处的第一中等负载条件下以第一频率振荡。 振荡信号被耦合以在电源输出处的第二峰值负载条件下以第二频率振荡。
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39.发明申请公开(公告)号：US20090153285A1
公开(公告)日：2009-06-18
申请号：US12349414
申请日：2009-01-06
CPC分类号： H01F27/306 , H01F27/022 , H01F27/324
摘要： A reduced cost energy transfer element for power converter circuits. In one embodiment, an energy transfer element according to an embodiment of the present invention includes a magnetic element having an external surface with at least a first winding and a second winding wound around the external surface of the magnetic element without a bobbin. As such, energy to be received from a power converter circuit input is to be transferred from the first winding to the second winding through a magnetic coupling provided by the magnetic element to a power converter circuit output.
摘要翻译： 用于功率转换器电路的降低成本的能量传递元件。 在一个实施例中，根据本发明的实施例的能量传递元件包括具有至少第一绕组的外表面和缠绕在磁性元件的外表面上的第二绕组的磁性元件，而没有线轴。 因此，要从功率转换器电路输入接收的能量将通过由磁性元件提供的电磁耦合而从第一绕组传递到第二绕组到功率转换器电路输出。
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40.发明授权公开(公告)号：US07482905B2
公开(公告)日：2009-01-27
申请号：US11716110
申请日：2007-03-08
IPC分类号： H01F5/00
CPC分类号： H01F27/306 , H01F27/022 , H01F27/324
摘要： A reduced cost energy transfer element for power converter circuits. In one embodiment, an energy transfer element according to an embodiment of the present invention includes a magnetic element having an external surface with at least a first winding and a second winding wound around the external surface of the magnetic element without a bobbin. As such, energy to be received from a power converter circuit input is to be transferred from the first winding to the second winding through a magnetic coupling provided by the magnetic element to a power converter circuit output.
摘要翻译： 用于功率转换器电路的降低成本的能量传递元件。 在一个实施例中，根据本发明的实施例的能量传递元件包括具有至少第一绕组的外表面和缠绕在磁性元件的外表面上的第二绕组的磁性元件，而没有线轴。 因此，要从功率转换器电路输入接收的能量将通过由磁性元件提供的电磁耦合而从第一绕组传递到第二绕组到功率转换器电路输出。
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