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1. 发明授权

US08139384B2 Method and apparatus for input charge control of a power supply 有权
标题翻译：电源输入充电控制的方法和装置
公开(公告)号：US08139384B2
公开(公告)日：2012-03-20
申请号：US12477058
申请日：2009-06-02
申请人： David Kung , William M. Polivka
发明人： David Kung , William M. Polivka
IPC分类号： H02M7/44
CPC分类号： H02M3/33523 , H02M2001/0009
摘要： An example controller includes a constant current control circuit and an integrator included in the constant current control circuit. The constant current control circuit is to be coupled to receive an input current sense signal, an input voltage sense signal, and an output voltage sense signal. The control circuit is adapted to regulate an output current of a power supply by generating a control signal to control switching of a switch. The integrator is coupled to integrate the input current sense signal during a switching period of the control signal to generate an integrated signal representative of a charge taken from an input voltage source of the power supply. The constant current control circuit is adapted to control the switching of the switch such that the integrated signal is proportional to a ratio of the output voltage sense signal to the input voltage sense signal.
摘要翻译：示例性控制器包括恒流控制电路和包括在恒流控制电路中的积分器。恒流控制电路将被耦合以接收输入电流感测信号，输入电压感测信号和输出电压感测信号。控制电路适于通过产生控制信号来调节电源的输出电流来控制开关的切换。耦合该积分器以在控制信号的开关周期期间集成输入电流感测信号，以产生代表从电源的输入电压源获取的电荷的积分信号。恒流控制电路适于控制开关的开关，使得积分信号与输出电压感测信号与输入电压感测信号的比例成比例。

2. 发明申请

US20120146607A1 METHOD AND APPARATUS FOR INPUT CHARGE CONTROL OF A POWER SUPPLY 失效
标题翻译：电源输入充电控制方法与装置
公开(公告)号：US20120146607A1
公开(公告)日：2012-06-14
申请号：US13401674
申请日：2012-02-21
申请人： David Kung , William M. Polivka
发明人： David Kung , William M. Polivka
IPC分类号： G05F1/10
CPC分类号： H02M3/33523 , H02M2001/0009
摘要： An example power supply includes an energy transfer element, a switch and a controller. The controller includes a logic circuit and a constant current control circuit. The logic circuit generates a drive signal to control the switch in response to a control signal. The constant current control circuit generates the control signal in response to a received input current sense signal, input voltage sense signal, and output voltage sense signal. An integrator included in the constant current control circuit integrates the input current sense signal to generate an integrated signal representative of a charge taken from the input voltage source. The constant current control circuit is adapted to generate the control signal to provide a constant current at the output of the power supply such that the integrated signal is proportional to a ratio of the output voltage sense signal to the input voltage sense signal.
摘要翻译：示例性电源包括能量传递元件，开关和控制器。控制器包括逻辑电路和恒流控制电路。逻辑电路响应于控制信号产生驱动信号以控制开关。恒流控制电路根据接收的输入电流检测信号，输入电压检测信号和输出电压检测信号产生控制信号。包括在恒流控制电路中的积分器将输入电流检测信号积分，以产生表示从输入电压源获取的电荷的积分信号。恒流控制电路适于产生控制信号以在电源的输出处提供恒定电流，使得积分信号与输出电压感测信号与输入电压感测信号的比例成比例。

3. 发明授权

US08325505B2 Method and apparatus for input charge control of a power supply 失效
标题翻译：电源输入充电控制的方法和装置
公开(公告)号：US08325505B2
公开(公告)日：2012-12-04
申请号：US13401674
申请日：2012-02-21
申请人： David Kung , William M. Polivka
发明人： David Kung , William M. Polivka
IPC分类号： H02M7/44
CPC分类号： H02M3/33523 , H02M2001/0009
摘要： An example power supply includes an energy transfer element, a switch and a controller. The controller includes a logic circuit and a constant current control circuit. The logic circuit generates a drive signal to control the switch in response to a control signal. The constant current control circuit generates the control signal in response to a received input current sense signal, input voltage sense signal, and output voltage sense signal. An integrator included in the constant current control circuit integrates the input current sense signal to generate an integrated signal representative of a charge taken from the input voltage source. The constant current control circuit is adapted to generate the control signal to provide a constant current at the output of the power supply such that the integrated signal is proportional to a ratio of the output voltage sense signal to the input voltage sense signal.
摘要翻译：示例性电源包括能量传递元件，开关和控制器。控制器包括逻辑电路和恒流控制电路。逻辑电路响应于控制信号产生驱动信号以控制开关。恒流控制电路根据接收的输入电流检测信号，输入电压检测信号和输出电压检测信号产生控制信号。包括在恒流控制电路中的积分器将输入电流检测信号积分，以产生表示从输入电压源获取的电荷的积分信号。恒流控制电路适于产生控制信号以在电源的输出处提供恒定电流，使得积分信号与输出电压感测信号与输入电压感测信号的比例成比例。

4. 发明申请

US20100301821A1 METHOD AND APPARATUS FOR INPUT CHARGE CONTROL OF A POWER SUPPLY 有权
标题翻译：电源输入充电控制方法与装置
公开(公告)号：US20100301821A1
公开(公告)日：2010-12-02
申请号：US12477058
申请日：2009-06-02
申请人： David Kung , William M. Polivka
发明人： David Kung , William M. Polivka
IPC分类号： G05F1/10
CPC分类号： H02M3/33523 , H02M2001/0009
摘要： An example controller includes a constant current control circuit and an integrator included in the constant current control circuit. The constant current control circuit is to be coupled to receive an input current sense signal, an input voltage sense signal, and an output voltage sense signal. The control circuit is adapted to regulate an output current of a power supply by generating a control signal to control switching of a switch. The integrator is coupled to integrate the input current sense signal during a switching period of the control signal to generate an integrated signal representative of a charge taken from an input voltage source of the power supply. The constant current control circuit is adapted to control the switching of the switch such that the integrated signal is proportional to a ratio of the output voltage sense signal to the input voltage sense signal.
摘要翻译：示例性控制器包括恒流控制电路和包括在恒流控制电路中的积分器。恒流控制电路将被耦合以接收输入电流感测信号，输入电压感测信号和输出电压感测信号。控制电路适于通过产生控制信号来调节电源的输出电流来控制开关的切换。耦合该积分器以在控制信号的开关周期期间集成输入电流感测信号，以产生代表从电源的输入电压源获取的电荷的积分信号。恒流控制电路适于控制开关的开关，使得积分信号与输出电压感测信号与输入电压感测信号的比例成比例。

5. 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。

6. 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。

7. 发明授权

US07759922B2 Method and apparatus to provide temporary peak power from a switching regulator 失效
标题翻译：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：US07759922B2
公开(公告)日：2010-07-20
申请号：US12430709
申请日：2009-04-27
申请人： Stefan Bäurle , William M. Polivka , David Michael Hugh Matthews
发明人： Stefan Bäurle , William M. Polivka , David Michael Hugh Matthews
IPC分类号： G05F1/40 , H02H7/122
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。

8. 发明授权

US07539028B2 Method and apparatus for fault detection in a switching power supply 失效
标题翻译：开关电源中故障检测的方法和装置
公开(公告)号：US07539028B2
公开(公告)日：2009-05-26
申请号：US11174183
申请日：2005-07-01
申请人： Stefan Bäurle , William M. Polivka
发明人： Stefan Bäurle , William M. Polivka
IPC分类号： H02M3/335
CPC分类号： H02M3/33507 , H02M1/32 , H02M1/36
摘要： Techniques are disclosed to detect a fault in the feedback circuit of a switching power supply while the power supply operates in a mode where the output is below its regulated value. The power supply delivers maximum power at a given switching frequency without a feedback signal while the output is below its regulated value. A fault protection circuit substantially reduces the average output power if there is no feedback signal for the duration of a fault time. When there is no feedback signal, the power supply increases the maximum output power by increasing the switching frequency before the end of the fault time to increase the output to a regulated value. The presence of a feedback signal when the output reaches a regulated value restores the original switching frequency and returns the output to its unregulated value. The absence of a feedback signal at the end of the fault time engages the fault protection circuit to substantially reduce the output power.
摘要翻译：公开了用于检测开关电源的反馈电路中的故障的技术，同时电源以输出低于其调节值的模式操作。电源在给定开关频率下提供最大功率，而无需反馈信号，而输出低于其调节值。如果在故障时间的持续时间内没有反馈信号，则故障保护电路大大降低了平均输出功率。当没有反馈信号时，电源通过在故障时间结束之前增加开关频率来增加最大输出功率，以将输出增加到一个规定值。当输出达到规定值时反馈信号的存在恢复原始开关频率并将输出返回到其未调节值。在故障时间结束时没有反馈信号与故障保护电路相结合，从而显着降低输出功率。

9. 发明授权

US07205877B2 Method and apparatus for transferring energy in a power converter circuit 失效
公开(公告)号：US07205877B2
公开(公告)日：2007-04-17
申请号：US11201031
申请日：2005-08-10
申请人： William M. Polivka , David Michael Hugh Matthews
发明人： William M. Polivka , David Michael Hugh Matthews
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.

10. 发明授权

US5068776A Switched-mode DC-DC power converter for reducing effects of magnetization current 失效
标题翻译：开关型DC-DC电源转换器，用于降低磁化电流的影响
公开(公告)号：US5068776A
公开(公告)日：1991-11-26
申请号：US619608
申请日：1990-11-29
申请人： William M. Polivka
发明人： William M. Polivka
IPC分类号： H02M3/28 , G01R15/18 , G01R19/20 , H02M3/335 , H02M3/337
CPC分类号： G01R15/185 , G01R19/20 , H02M3/3353 , H02M3/33546 , H02M3/3376
摘要： A circuit structure is described for a switched-mode DC-DC converter to eliminate the degrading effect of magnetization current on sensed load current, by forming the power transformer with an additional winding, other than its usual primary and secondary windings. The additional winding is coupled magnetically with the power transformer to obtain a voltage proportional to the voltage on the primary of the power transformer, but the additional winding is connected electrically in series with the secondary winding of a current-sensing transformer. A current-sensing circuit is described that includes the additional winding and the current-sensing transformer in order to effectively eliminate the effects of the magnetization current from the sensed load current.
摘要翻译：描述了用于开关模式DC-DC转换器的电路结构，以通过除了其通常的初级和次级绕组之外通过用附加绕组形成电力变压器来消除磁化电流对感测负载电流的降级影响。附加绕组与电力变压器磁耦合以获得与电力变压器的初级电压成比例的电压，但是附加绕组与电流感测变压器的次级绕组串联连接。描述了一种电流感测电路，其包括附加绕组和电流感测变压器，以便有效地消除来自感测负载电流的磁化电流的影响。

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