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1. 发明授权

US08406013B2 Method and apparatus for sensing multiple voltage values from a single terminal of a power converter controller 有权
标题翻译：用于从功率转换器控制器的单个端子感测多个电压值的方法和装置
公开(公告)号：US08406013B2
公开(公告)日：2013-03-26
申请号：US13279157
申请日：2011-10-21
申请人： Alex B. Djenguerian , Balu Balakrishnan
发明人： Alex B. Djenguerian , Balu Balakrishnan
IPC分类号： H02M3/335
CPC分类号： H02M3/33507 , H02M1/08 , H02M1/32 , H02M1/36 , H02M3/24 , H02M3/33523 , H02M2001/0009
摘要： An example controller for a power converter includes a switching control coupled to switch a power switch of the power converter to control a transfer of energy from an input of the power converter to an output of the power converter. A sensor is coupled to sample a single terminal of the controller during a portion of an off time of the power switch to output a signal representative of an output voltage of the power converter. The sensor is further coupled to sample the single terminal during a portion of an on time of the power switch to output a signal representative of a line input voltage of the power converter. The switching control is responsive to the sensor.
摘要翻译：用于功率转换器的示例性控制器包括开关控制，其耦合以切换功率转换器的功率开关以控制从功率转换器的输入到功率转换器的输出的能量传递。耦合传感器以在电源开关的断开时间的一部分期间对控制器的单个端子进行采样，以输出表示功率转换器的输出电压的信号。传感器还被耦合以在功率开关的导通时间的一部分期间对单个端子进行采样，以输出表示功率转换器的线路输入电压的信号。切换控制响应于传感器。

2. 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。

3. 发明授权

US08031491B2 Method and apparatus for on/off control of a power converter 失效
标题翻译：用于电力转换器的开/关控制的方法和装置
公开(公告)号：US08031491B2
公开(公告)日：2011-10-04
申请号：US12816982
申请日：2010-06-16
申请人： Alex B. Djenguerian , Balu Balakrishnan , Erdem Bircan , David Michael Hugh Matthews
发明人： Alex B. Djenguerian , Balu Balakrishnan , Erdem Bircan , David Michael Hugh Matthews
IPC分类号： H02M3/335
CPC分类号： H02M3/33515 , H02M3/157
摘要： A power converter control method and apparatus is disclosed. An example power converter controller according to aspects of the present invention includes a feedback sampling circuit coupled to receive a feedback signal representative of an output of a power converter to generate feedback signal samples during enabled switching cycles. The power converter controller also includes a switch conduction control circuit coupled to the feedback sampling circuit. The switch conduction control circuit includes switch conduction enable circuitry coupled to enable or disable the conduction of a power switch during a switching cycle in response to the feedback signal samples. The switch conduction control circuit also includes switch conduction scheduling circuitry coupled to determine a varying number of future enabled and disabled switching cycles in response to the feedback signal samples from a present switching cycle and one or more past switching cycles.
摘要翻译：公开了一种功率转换器控制方法和装置。根据本发明的方面的示例性功率转换器控制器包括反馈采样电路，其被耦合以接收表示功率转换器的输出的反馈信号，以在启用的开关周期期间产生反馈信号采样。电力转换器控制器还包括耦合到反馈采样电路的开关导通控制电路。开关导通控制电路包括开关导通使能电路，其耦合以响应于反馈信号采样而在开关周期期间启用或禁用功率开关的导通。开关导通控制电路还包括耦合以响应于来自当前开关周期和一个或多个过去开关周期的反馈信号样本确定未来启用和禁用的开关周期的变化数量的开关导通调度电路。

4. 发明授权

US07881027B2 Fault condition protection 有权
标题翻译：故障条件保护
公开(公告)号：US07881027B2
公开(公告)日：2011-02-01
申请号：US12836518
申请日：2010-07-14
申请人： Balu Balakrishnan , Alex B. Djenguerian , Leif O. Lund
发明人： Balu Balakrishnan , Alex B. Djenguerian , Leif O. 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 regulator for a switched mode power supply includes switching regulator logic, a counter and a logic gate. The switching regulator logic is coupled to receive a feedback signal and to generate a switching signal in response. The feedback signal periodically cycles between a first state and a second state when the power supply operates normally. The counter is coupled to receive the feedback signal and 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. An output of the logic gate enables the power switch to turn on and off in response to the switching signal when the output of the counter does not indicate the auto-restart mode and the output of the logic gate disables the power switch in response to the output of the counter indicating the auto-restart mode.
摘要翻译：用于开关模式电源的稳压器包括开关稳压器逻辑，计数器和逻辑门。开关稳压器逻辑被耦合以接收反馈信号并且响应地产生开关信号。当电源正常工作时，反馈信号周期性地在第一状态和第二状态之间循环。计数器被耦合以接收反馈信号，并且计数器的输出指示响应于在第一状态下保持预定计数的反馈信号的调节器的自动重启模式。当计数器的输出不指示自动重启模式时，逻辑门的输出使得电源开关响应于开关信号而导通和截止，并且逻辑门的输出响应于计数器的输出指示自动重启模式。

5. 发明授权

US07876587B2 Method and apparatus providing a multi-function terminal for a power supply controller 有权
标题翻译：提供电源控制器的多功能端子的方法和装置
公开(公告)号：US07876587B2
公开(公告)日：2011-01-25
申请号：US12544986
申请日：2009-08-20
申请人： Balu Balakrishnan , Alex B. Djenguerian , Leif O. Lund
发明人： Balu Balakrishnan , Alex B. Djenguerian , Leif O. Lund
IPC分类号： H02M3/24
CPC分类号： H02M1/32 , H02M3/33507
摘要： A method for controlling a power supply is disclosed. An example method includes deactivating the power supply in response to a first current through a first terminal of a power supply controller falling below a first threshold value. The power supply is activated in response to the first current through the first terminal rising above a second threshold value. Deactivating the power comprises causing a power switch coupled to a primary winding of the power supply not to receive a switching waveform for more than one cycle until the power supply is activated.
摘要翻译：公开了一种用于控制电源的方法。示例性方法包括响应于通过电源控制器的第一端子落在第一阈值以下的第一电流而停用电源。响应于通过第一端子的第一电流升高到高于第二阈值，电源被激活。停用电源包括使得耦合到电源的初级绕组的电源开关不会在电源被激活之前不接收多于一个周期的开关波形。

6. 发明申请

US20100321039A1 METHOD AND APPARATUS TO SELECT A PARAMETER/MODE BASED ON A TIME MEASUREMENT 失效
标题翻译：基于时间测量选择参数/模式的方法和装置
公开(公告)号：US20100321039A1
公开(公告)日：2010-12-23
申请号：US12862654
申请日：2010-08-24
申请人： David Michael Hugh Matthews , Alex B. Djenguerian , Kent Wong , Balu Balakrishnan
发明人： David Michael Hugh Matthews , Alex B. Djenguerian , Kent Wong , Balu Balakrishnan
IPC分类号： G01R27/26
CPC分类号： G01R27/26 , G01R27/2605 , H01L2924/0002 , H02M3/33523 , H02M2001/0025 , H01L2924/00
摘要： An example integrated control circuit includes a regulator, a first comparator, a second comparator, and a counter. The regulator is to charge, during a time period, a capacitor. The first comparator is to provide an output indicating when a voltage on the capacitor reaches a first threshold voltage. The second comparator is coupled to provide an output indicating when the voltage on the capacitor reaches a second threshold voltage. The counter is coupled to begin counting in response to the first threshold voltage being reached and is coupled to stop counting in response to the second threshold voltage being reached. The counter is coupled to provide an output representative of the capacitance value of the capacitor during the time period and the integrated control circuit receives a bias current at the terminal from the capacitor to provide power to operate the integrated control circuit after the time period has ended.
摘要翻译：示例性集成控制电路包括调节器，第一比较器，第二比较器和计数器。调节器在一段时间内对电容器充电。第一比较器是提供一个输出，指示电容器上的电压何时达到第一阈值电压。第二比较器被耦合以提供指示电容器上的电压何时达到第二阈值电压的输出。计数器被耦合以响应于达到第一阈值电压而开始计数，并且被耦合以响应于达到第二阈值电压而停止计数。该计数器被耦合以提供表示在该时间段期间电容器的电容值的输出，并且集成控制电路从该电容器接收端子处的偏置电流，以在该时间段结束之后提供对集成控制电路的操作的电力。

7. 发明授权

US07646184B2 Method and apparatus for maintaining a constant load current with line voltage in a switch mode power supply 有权
标题翻译：用于在开关模式电源中用线电压维持恒定负载电流的方法和装置
公开(公告)号：US07646184B2
公开(公告)日：2010-01-12
申请号：US11784560
申请日：2007-04-06
申请人： Balu Balakrishnan , Alex B. Djenguerian , Kent Wong , David Michael Hugh Matthews
发明人： Balu Balakrishnan , Alex B. Djenguerian , Kent Wong , David Michael Hugh Matthews
IPC分类号： G05F1/40
CPC分类号： H02M3/33523 , H02M3/33507 , H02M2001/0009 , H03K17/0822
摘要： A power supply including a regulation circuit that maintains an approximately constant load current with line voltage. In one embodiment, a regulation circuit includes a semiconductor switch and current sense circuitry to sense the current in the semiconductor switch. The current sense circuitry has a current limit threshold. The regulation circuit current limit threshold is varied from a first level to a second level during the time when the semiconductor switch is on. One embodiment of the regulation circuit is used in a power supply having an output characteristic having an approximately constant output voltage below an output current threshold and an approximately constant output current below an output voltage threshold.
摘要翻译：一种电源，包括一个调节电路，该电路用线路电压保持大致恒定的负载电流。在一个实施例中，调节电路包括用于感测半导体开关中的电流的半导体开关和电流检测电路。电流检测电路具有电流限制阈值。在半导体开关导通的时间期间，调节电路电流限制阈值从第一电平变化到第二电平。调节电路的一个实施例用于具有低于输出电流阈值的近似恒定的输出电压和低于输出电压阈值的近似恒定的输出电流的输出特性的电源。

8. 发明授权

US07596005B2 Method and apparatus providing a multi-function terminal for a power supply controller 有权
标题翻译：提供电源控制器的多功能端子的方法和装置
公开(公告)号：US07596005B2
公开(公告)日：2009-09-29
申请号：US11825903
申请日：2007-07-09
申请人： Balu Balakrishnan , Alex B. Djenguerian , Leif O. Lund
发明人： Balu Balakrishnan , Alex B. Djenguerian , Leif O. Lund
IPC分类号： H02M3/335
CPC分类号： H02M1/32 , H02M3/33507
摘要： A power supply controller circuit in one embodiment comprises a power switch, a multifunction circuit, and a control circuit. The power switch comprises a source and a drain respectively coupled to first and second terminals of the power supply controller circuit. The multifunction circuit comprises a first input that is coupled to a third terminal of the controller circuit, wherein the third terminal is to receive a first current control signal, and wherein the multifunction circuit is to generate a second current control signal in response to the first current control signal. The control circuit generates a switching waveform to drive a control input of the power switch in response to: an oscillating signal, a signal that is representative of current flowing through the power switch, and the second current control signal.
摘要翻译：一个实施例中的电源控制器电路包括电源开关，多功能电路和控制电路。电源开关包括分别耦合到电源控制器电路的第一和第二端子的源极和漏极。所述多功能电路包括耦合到所述控制器电路的第三端子的第一输入端，其中所述第三端子用于接收第一电流控制信号，并且其中所述多功能电路响应于所述第一电流控制信号产生第二电流控制信号电流控制信号。控制电路响应于振荡信号，表示流过电源开关的电流的信号和第二电流控制信号，产生开关波形，以驱动电源开关的控制输入。

9. 发明授权

US07400122B2 Method and apparatus for reducing audio noise in a switching regulator 有权
标题翻译：用于减少开关调节器中的音频噪声的方法和装置
公开(公告)号：US07400122B2
公开(公告)日：2008-07-15
申请号：US11729262
申请日：2007-03-27
申请人： Balu Balakrishnan , Alex B. Djenguerian , Kent Wong
发明人： Balu Balakrishnan , Alex B. Djenguerian , Kent Wong
IPC分类号： G05F1/40
CPC分类号： H02M3/33507 , H02M1/44 , H02M3/33515 , H02M2001/0025 , H02M2001/0032 , Y02B70/16
摘要： A switching regulator utilizing on/off control that reduces audio noise at light loads by adjusting the current limit of the switching regulator. In one embodiment, a switching regulator includes a state machine that adjusts the current limit of the switching regulator based on a pattern of feedback signal values from the output of the power supply for a preceding N cycles of the drive signal. The state machine adjusts the current limit lower at light loads such that cycles are not skipped to reduce the operating frequency of the switching regulator into the audio frequency range until the flux density through the transformer is sufficiently low to reduce the generation of audio noise.
摘要翻译：利用开/关控制的开关调节器，通过调节开关调节器的电流限制来减轻轻负载时的音频噪声。在一个实施例中，开关调节器包括状态机，其基于来自驱动信号的先前N个周期的电源的输出的反馈信号值的模式来调整开关调节器的电流限制。状态机在轻负载下调节电流限制，使得不跳过周期以将开关调节器的工作频率降低到音频频率范围，直到通过变压器的磁通密度足够低以减少音频噪声的产生。

10. 发明授权

US06992471B2 Method and apparatus for trimming current limit and frequency to maintain a constant maximum power 失效
标题翻译：用于调整电流限制和频率以保持恒定最大功率的方法和装置
公开(公告)号：US06992471B2
公开(公告)日：2006-01-31
申请号：US11071380
申请日：2005-03-02
申请人： Balu Balakrishnan , Alex B. Djenguerian , David Michael Hugh Matthews
发明人： Balu Balakrishnan , Alex B. Djenguerian , David Michael Hugh Matthews
IPC分类号： G05F1/40
CPC分类号： H02M1/32 , G05F3/262 , H02M3/156 , H02M3/33507 , H02M7/003 , H02M2001/0093 , H03K17/0822
摘要： Methods and apparatuses to trim current limit (Ip ) and frequency (f) to maintain a constant maximum power. In one aspect of the invention, a power supply regulator having a peak current limit detection threshold and an operating frequency is disclosed. The peak current limit threshold or the operating frequency are adjusted specifically to maintain the Ipm·fn product substantially constant from one power supply controller to another where m is substantially equal to 2 and n is substantially equal to 1. In another aspect of the invention, the power supply regulator has a control circuit having a control threshold current. The peak current limit threshold or the operating frequency are adjusted specifically to maintain the product of Ipm·fn divided by the control threshold current substantially constant from one power supply controller to another where m is substantially equal to 2 and n is substantially equal to 1.
摘要翻译：限制电流极限（I SUB）和频率（f）的方法和装置以维持恒定的最大功率。在本发明的一个方面，公开了具有峰值电流限制检测阈值和工作频率的电源调节器。峰值电流限制阈值或工作频率被特别地调整，以保持从一个电源控制器基本上恒定的电压I n 到另一个，其中m基本上等于2，并且n基本上等于1.在本发明的另一方面，电源调节器具有具有控制阈值电流的控制电路。对峰值电流限制阈值或工作频率进行特殊调整，以保持I / O的乘积除以控制阈值电流从一个电源控制器基本上恒定到另一个，其中m基本上等于2，并且n基本上等于1。

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