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31. 发明授权

US08310845B2 Power supply circuit with a control terminal for different functional modes of operation 失效
标题翻译：电源电路具有不同功能操作模式的控制端子
公开(公告)号：US08310845B2
公开(公告)日：2012-11-13
申请号：US12658479
申请日：2010-02-10
申请人： Yury Gaknoki , Tiziano Pastore , Mingming Mao , David Michael Hugh Matthews
发明人： Yury Gaknoki , Tiziano Pastore , Mingming Mao , David Michael Hugh Matthews
IPC分类号： H02M3/335
CPC分类号： H05B33/0815 , H02M3/156 , H02M3/33507
摘要： A method of operation for flyback power converter includes operating a controller of the flyback power converter in a regulation mode when a control signal is below a first threshold. The control signal is provided as an input to a terminal of the flyback power converter. When the control signal is below a second threshold and above the first threshold, the controller is operated in a limiting mode. The controller is operated in an external command mode when the control signal is below a third threshold and above the second threshold. Lastly, when the control signal is above the third threshold, the controller is operated in a protection mode.
摘要翻译：用于反激式功率转换器的操作方法包括当控制信号低于第一阈值时，以调节模式操作回扫功率转换器的控制器。该控制信号被提供给反激式功率转换器的端子作为输入。当控制信号低于第二阈值并高于第一阈值时，控制器在限制模式下操作。当控制信号低于第三阈值并高于第二阈值时，控制器以外部命令模式操作。最后，当控制信号高于第三阈值时，控制器工作在保护模式。

32. 发明授权

US08300434B2 Method and apparatus to control a power converter having a low loop bandwidth 失效
标题翻译：控制具有低环路带宽的功率转换器的方法和装置
公开(公告)号：US08300434B2
公开(公告)日：2012-10-30
申请号：US13315166
申请日：2011-12-08
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
CPC分类号： H02M3/33507 , H02M1/4258 , H02M3/33515 , H05B33/0815 , Y02B20/346 , Y02B70/126
摘要： An example controller includes a feedback sensor circuit that receives a feedback signal representative of an output of a power converter. A feedback sampling signal generator is coupled to generate a feedback sampling signal. The feedback sensor circuit samples the feedback signal in response to the feedback sampling signal. A state machine controls switching of a switch of a power converter circuit according to one of a plurality of operating condition states in response to the feedback sensor circuit. Each of the plurality of operating condition states includes a substantially fixed switch on time. A feedback time period signal generator generates a feedback time period signal received by the state machine. A period of the feedback time period signal is substantially greater than a period of the feedback sampling signal. The state machine is updated in response to the feedback time period signal.
摘要翻译：示例性控制器包括反馈传感器电路，其接收表示功率转换器的输出的反馈信号。耦合反馈采样信号发生器以产生反馈采样信号。反馈传感器电路响应于反馈采样信号对反馈信号进行采样。响应于反馈传感器电路，状态机根据多个操作状态中的一个来控制功率转换器电路的开关的切换。多个操作状态中的每一个包括基本上固定的开关开关。反馈时间周期信号发生器产生由状态机接收的反馈时间周期信号。反馈时间周期信号的周期显着大于反馈采样信号的周期。响应于反馈时间段信号更新状态机。

33. 发明申请

US20120105018A1 METHOD AND APPARATUS FOR IMPLEMENTING A POWER CONVERTER INPUT TERMINAL VOLTAGE DISCHARGE CIRCUIT 有权
标题翻译：实现功率转换器输入端子电压放电电路的方法和装置
公开(公告)号：US20120105018A1
公开(公告)日：2012-05-03
申请号：US13345257
申请日：2012-01-06
申请人： Balu Balakrishnan , David Kung , Raymond Kenneth Orr , David Michael Hugh Matthews
发明人： Balu Balakrishnan , David Kung , Raymond Kenneth Orr , David Michael Hugh Matthews
IPC分类号： H02J7/00
CPC分类号： H02M1/32 , H02M1/12 , H02M1/126 , H02M1/36 , H02M2001/322
摘要： A switch is coupled to a control circuit and to an input of a power converter. The control circuit is coupled to drive the switch in a first operating mode to transfer energy from the input to an output of the power converter when an electrical energy source is coupled to the input of the power converter. The control circuit is coupled to drive the switch in a second operating mode when the electrical energy source is uncoupled from the input. A capacitance is coupled between input terminals of the input of the power converter and is discharged to a threshold voltage in less than a maximum period of time from when the electrical energy source is uncoupled from the input terminals. The control circuit is coupled to drive the switch to have a high average impedance in the first operating mode.
摘要翻译：开关耦合到控制电路和功率转换器的输入端。当电能源耦合到功率转换器的输入端时，控制电路被耦合以在第一操作模式下驱动开关以将能量从输入传递到功率转换器的输出端。当电能源与输入端分离时，控制电路被耦合以在第二操作模式下驱动开关。电容耦合在功率转换器的输入端的输入端之间，并且在电能从输入端分离之后的最小时间内被放电到阈值电压。控制电路被耦合以驱动开关以在第一操作模式中具有高平均阻抗。

34. 发明授权

US08159839B2 Method and apparatus for implementing an unregulated dormant mode in a power converter 有权
标题翻译：在功率转换器中实现未调节休眠模式的方法和装置
公开(公告)号：US08159839B2
公开(公告)日：2012-04-17
申请号：US13090102
申请日：2011-04-19
申请人： David Michael Hugh Matthews
发明人： David Michael Hugh Matthews
IPC分类号： H02M3/335 , G05F1/575
CPC分类号： H02M3/33523 , H02J9/005 , H02M3/00 , Y10T307/406
摘要： A control circuit for use in a power converter with an unregulated dormant mode of operation is disclosed. In one aspect a power converter includes a drive signal generator that is coupled to generate a drive signal to control switching of a power switch coupled to the control circuit to regulate a flow of energy to an output of the power converter in response to an energy requirement of one or more loads coupled to the output of the power converter. A regulator circuit is coupled to charge a capacitor. The capacitor determines a time period. The regulator circuit is coupled to not charge the capacitor if the energy requirement of the one or more loads coupled to the output of the power converter falls below a threshold. The regulator is coupled to again charge the capacitor after the time period has elapsed. An unregulated dormant mode control circuit is coupled to render dormant the drive signal generator and the regulator circuit during the time period thereby causing regulation of the flow of energy to the output of power converter output to cease. The unregulated dormant mode control circuit is further coupled to power up the drive signal generator and the regulator after the time period has elapsed.
摘要翻译：公开了一种用于具有未调节的休眠操作模式的功率转换器的控制电路。在一个方面，功率转换器包括驱动信号发生器，其被耦合以产生驱动信号以控制耦合到控制电路的功率开关的切换，以响应于能量需求来调节能量流到功率转换器的输出耦合到功率转换器的输出的一个或多个负载。耦合电容器的调节器电路。电容器确定一个时间段。如果耦合到功率转换器的输出的一个或多个负载的能量需求低于阈值，则调节器电路被耦合以不对电容器充电。在经过时间之后，稳压器被耦合以对电容器再次充电。耦合不调节的休眠模式控制电路以在该时间段期间使驱动信号发生器和调节器电路休眠，由此导致能量流向功率转换器输出的输出的调节停止。未调节的休眠模式控制电路还被耦合以在经过该时间段之后给驱动信号发生器和调节器供电。

35. 发明申请

US20110085358A1 METHOD AND APPARATUS FOR HIGH-SIDE INPUT WINDING REGULATION 有权
标题翻译：高压输入调速方法与装置
公开(公告)号：US20110085358A1
公开(公告)日：2011-04-14
申请号：US12579247
申请日：2009-10-14
申请人： David Michael Hugh Matthews
发明人： David Michael Hugh Matthews
IPC分类号： H02M3/335
CPC分类号： H02M3/33507
摘要： A power supply control circuit for use in a power supply is disclosed. An example power supply control circuit includes a power switch coupled between first and second terminals. The first terminal is to be coupled to a positive input supply rail of the power supply. The second terminal is to be coupled to an energy transfer element input of the power supply. A sampling circuit is coupled to a third terminal. The sampling circuit coupled to sample a signal across the energy transfer element input of the power supply during an off time of the power switch to provide a sampled output of the power supply. The sampled output of the power supply is disabled from being be resampled by the sampling circuit during an on time of the power switch. A control circuit coupled to the sampling circuit and the power switch, the control circuit coupled to switch the power switch in response to the sampled output of the power supply.
摘要翻译：公开了一种用于电源的电源控制电路。示例性电源控制电路包括耦合在第一和第二端子之间的功率开关。第一个端子要耦合到电源的正输入电源轨。第二端子被耦合到电源的能量传递元件输入端。采样电路耦合到第三端子。所述采样电路耦合以在所述电源开关的断开时间期间跨越所述电源的所述能量传递元件输入端采样信号，以提供所述电源的采样输出。在电源开关接通时，电源的采样输出被禁止被采样电路重新采样。耦合到采样电路和电源开关的控制电路，所述控制电路被耦合以响应于电源的采样输出来切换电源开关。

36. 发明授权

US07898826B2 Method and apparatus for limiting maximum output power of a power converter 有权
标题翻译：用于限制功率转换器的最大输出功率的方法和装置
公开(公告)号：US07898826B2
公开(公告)日：2011-03-01
申请号：US12422823
申请日：2009-04-13
申请人： David Michael Hugh Matthews
发明人： David Michael Hugh Matthews
IPC分类号： H02M3/335
CPC分类号： H02M1/32 , H02M3/33507
摘要： An example power converter includes a power switch, a controller, and a current offset circuit. The controller is coupled to switch the power switch between an ON state and an OFF state to regulate an output of the power converter. The controller is adapted to terminate the ON state of the power switch in response to a switch current flowing through the power switch reaching a switch current threshold. The current offset circuit is coupled to generate an offset current in response to an input voltage of the power converter and an input current of the power converter is adjusted in response to the offset current.
摘要翻译：示例功率转换器包括电源开关，控制器和电流补偿电路。控制器被耦合以在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。控制器适于响应于流过功率开关的开关电流达到开关电流阈值而终止电源开关的接通状态。电流偏移电路被耦合以响应于功率转换器的输入电压而产生偏移电流，并且响应于偏移电流来调整功率转换器的输入电流。

37. 发明申请

US20110025288A1 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维持线路电压的恒定负载电流的方法和装置
公开(公告)号：US20110025288A1
公开(公告)日：2011-02-03
申请号：US12904015
申请日：2010-10-13
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 regulator including a variable current limit threshold that increases during an on time of a switch. In one aspect, a power supply regulator includes a comparator coupled to receive a signal representative of a current through a switch during an on time of the switch. The comparator is further coupled to receive a variable current limit threshold that increases during the on time of the switch. The power supply regulator also includes a feedback circuit coupled to receive a feedback signal representative of an output of a power supply. A control circuit is also included and is coupled to the switch, to an output of the comparator, and to an output of the feedback circuit. The control circuit is coupled to control a switching of the switch in response the output of the comparator and the output of the feedback circuit to regulate the output of the power supply.
摘要翻译：一种电源调节器，其包括在开关导通时间期间增加的可变电流限制阈值。在一个方面，电源调节器包括比较器，其耦合以在开关的接通时间期间接收表示通过开关的电流的信号。比较器还被耦合以接收在开关导通时间期间增加的可变电流限制阈值。电源调节器还包括耦合以接收表示电源的输出的反馈信号的反馈电路。还包括控制电路，并且耦合到开关，比较器的输出端和反馈电路的输出端。控制电路被耦合以响应于比较器的输出和反馈电路的输出来控制开关的开关，以调节电源的输出。

38. 发明申请

US20100254166A1 METHOD AND APPARATUS FOR ON/OFF CONTROL OF A POWER CONVERTER 失效
标题翻译：电源转换器开/关控制的方法和装置
公开(公告)号：US20100254166A1
公开(公告)日：2010-10-07
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。

39. 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。

40. 发明授权

US07489120B2 Method and apparatus for a high voltage power supply circuit 失效
标题翻译：高压电源电路的方法和装置
公开(公告)号：US07489120B2
公开(公告)日：2009-02-10
申请号：US11485657
申请日：2006-07-12
申请人： David Michael Hugh Matthews
发明人： David Michael Hugh Matthews
IPC分类号： G05F1/40
CPC分类号： H02M7/062
摘要： A high voltage power supply method and apparatus is disclosed. An apparatus according to aspects of the present invention includes a power supply circuit having a rectifier circuit coupled to input terminals of the power supply circuit that are to be coupled to receive an AC input voltage. A switchmode power converter circuit is coupled to the rectifier circuit to receive a rectified input voltage to generate a regulated output voltage in response to the rectified input voltage. A switch is coupled between the rectifier circuit and the switchmode power converter circuit. A sense circuit is coupled to detect the AC input voltage. The switch is coupled to be switched in response to the sense circuit. The switch is coupled to be switched off when an absolute value of the AC input voltage exceeds a first threshold value. The switch is coupled to be switched on when the absolute value of the AC input voltage is below a second threshold value.
摘要翻译：公开了一种高压电源方法和装置。根据本发明的方面的装置包括具有联接到要被耦合以接收AC输入电压的电源电路的输入端的整流电路的电源电路。开关模式功率转换器电路被耦合到整流器电路以接收经整流的输入电压响应于经整流的输入电压，以产生一个调节的输出电压。开关耦合在整流器电路和开关模式功率转换器电路之间。耦合感测电路以检测AC输入电压。开关被耦合以响应于感测电路而被切换。当交流输入电压的绝对值超过第一阈值时，开关被耦合以被关断。当AC输入电压的绝对值低于第二阈值时，开关被耦合以被接通。

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