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1. 发明授权

US08933649B2 Power converter having a switch coupled between windings 有权
标题翻译：功率转换器具有耦合在绕组之间的开关
公开(公告)号：US08933649B2
公开(公告)日：2015-01-13
申请号：US12790412
申请日：2010-05-28
申请人： David Michael Hugh Matthews , Matteo Uccelli
发明人： David Michael Hugh Matthews , Matteo Uccelli
IPC分类号： H05B37/02 , H02M3/155
CPC分类号： H02M3/155
摘要： An example power converter includes a first winding, a second winding, a switch, a controller and an output circuit. The second winding is magnetically coupled to the first winding and the controller includes a feedback terminal and a common terminal. The controller is coupled to control the switch to regulate an output of the power converter in response to a feedback voltage received at the feedback terminal. The output circuit is coupled between the common terminal of the controller and a common reference of the power converter to provide an output voltage to a load. The feedback voltage is a positive voltage with respect to the common terminal and the output voltage is a negative voltage with respect to the common reference of the power converter.
摘要翻译：示例性功率转换器包括第一绕组，第二绕组，开关，控制器和输出电路。第二绕组磁耦合到第一绕组，并且控制器包括反馈端子和公共端子。控制器被耦合以控制开关以响应于在反馈端子处接收的反馈电压来调节功率转换器的输出。输出电路耦合在控制器的公共端子和功率转换器的公共参考电压之间以向负载提供输出电压。反馈电压相对于公共端子是正电压，并且输出电压相对于功率转换器的公共参考值是负电压。

2. 发明授权

US08624562B2 Method and apparatus for implementing a power converter input terminal voltage discharge circuit 有权
标题翻译：用于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：US08624562B2
公开(公告)日：2014-01-07
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。

3. 发明授权

US08115457B2 Method and apparatus for implementing a power converter input terminal voltage discharge circuit 有权
标题翻译：用于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：US08115457B2
公开(公告)日：2012-02-14
申请号：US12533977
申请日：2009-07-31
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 circuit to discharge a capacitance between input terminals of a power system is disclosed. An example circuit includes a control circuit coupled to an input of a power system. The control circuit is coupled to detect whether an electrical energy source is coupled to an input of the power system. A switch is also included and is coupled to the control circuit and to the input of the power system. The control circuit is coupled to drive the switch in a first operating mode when the electrical energy source is coupled to the input of the power system. The control circuit is coupled to drive the switch in a second operating mode when the electrical energy source is uncoupled from the input of the power system. A capacitance coupled between input terminals of the input of the power system is discharged through the switch to a threshold voltage in less than a maximum period of time from when the electrical power source is uncoupled from the input terminals of the power system.
摘要翻译：公开了一种用于在电力系统的输入端子之间放电的电路。示例电路包括耦合到电力系统的输入的控制电路。控制电路被耦合以检测电能源是否耦合到电力系统的输入端。还包括开关并且耦合到控制电路和电力系统的输入。当电能源耦合到电力系统的输入端时，控制电路被耦合以在第一操作模式下驱动开关。当电能源与电力系统的输入分离时，控制电路被耦合以在第二操作模式下驱动开关。耦合在电力系统的输入端的输入端之间的电容通过开关从小于电力从电力系统的输入端分离的最大时间段内被释放到阈值电压。

4. 发明授权

US08098503B2 Method and apparatus to control a power converter having a low loop bandwidth 有权
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：US08098503B2
公开(公告)日：2012-01-17
申请号：US12703108
申请日：2010-02-09
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： A power converter controller is disclosed. An example power converter controller includes a feedback sensor circuit coupled to receive a feedback signal representative of an output of the power converter. The controller also includes a feedback sampling signal generator coupled to generate a feedback sampling signal coupled to be received by the feedback sensor circuit. The feedback sensor circuit is coupled to sample the feedback signal in response to the feedback sampling signal. The controller also includes a state machine coupled to the feedback sensor circuit to control switching of a switch of the power converter circuit according to one of a plurality of operating condition states in response to the feedback sensor circuit. The controller also includes a feedback time period signal generator coupled to generate a feedback time period signal coupled to be received by the state machine. A period of a feedback time period signal is substantially greater than a period of the feedback sampling signal. The state machine is coupled to be updated in response to the feedback time period signal.
摘要翻译：公开了一种电力转换器控制器。示例性功率转换器控制器包括耦合以接收表示功率转换器的输出的反馈信号的反馈传感器电路。控制器还包括反馈采样信号发生器，其被耦合以产生耦合以由反馈传感器电路接收的反馈采样信号。反馈传感器电路被耦合以响应于反馈采样信号对反馈信号进行采样。控制器还包括耦合到反馈传感器电路的状态机，以响应于反馈传感器电路来控制根据多个操作状态中的一个的功率转换器电路的开关的切换。控制器还包括耦合以产生耦合以由状态机接收的反馈时间周期信号的反馈时间周期信号发生器。反馈时间周期信号的周期显着大于反馈采样信号的周期。状态机被耦合以响应于反馈时间周期信号被更新。

5. 发明申请

US20110299306A1 METHOD AND APPARATUS FOR A CONTROL CIRCUIT RESPONSIVE TO AN IMPEDANCE COUPLED TO A CONTROL CIRCUIT TERMINAL 失效
标题翻译：用于与控制电路端子耦合的阻抗的控制电路的方法和装置
公开(公告)号：US20110299306A1
公开(公告)日：2011-12-08
申请号：US13213898
申请日：2011-08-19
申请人： Zhao-Jun Wang , Stefan Bäurle , David Michael Hugh Matthews
发明人： Zhao-Jun Wang , Stefan Bäurle , David Michael Hugh Matthews
IPC分类号： H02M3/335
CPC分类号： H02M3/33523 , H02M1/32 , H02M3/33507
摘要： An example power supply controller includes a regulation circuit, a current sense circuit, and a response circuit. The regulation circuit is coupled to regulate a sense terminal to a voltage level. The current sense circuit is coupled to the sense terminal to sense a current through the sense terminal a measurement delay period after a magnitude of the current through the sense terminal reaches a first threshold current level. The response circuit is coupled to the sense circuit and is responsive to the current through the sense terminal only after the measurement delay period.
摘要翻译：示例性电源控制器包括调节电路，电流检测电路和响应电路。调节电路被耦合以将感测端子调节到电压电平。电流感测电路耦合到感测端子，以在通过感测端子的电流的大小达到第一阈值电流水平之后感测通过感测端子的电流测量延迟周期。响应电路耦合到感测电路，并且仅在测量延迟周期之后才响应于通过感测端子的电流。

6. 发明授权

US08013584B2 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：US08013584B2
公开(公告)日：2011-09-06
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。

7. 发明申请

US20110199798A1 METHOD AND APPARATUS FOR IMPLEMENTING AN UNREGULATED DORMANT MODE IN A POWER CONVERTER 有权
标题翻译：用于在电力转换器中实现不连续的多路复用模式的方法和装置
公开(公告)号：US20110199798A1
公开(公告)日：2011-08-18
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： H02M1/36
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。

8. 发明申请

US20110156689A1 POWER CONVERTER HAVING A SWITCH COUPLED BETWEEN WINDINGS 有权
标题翻译：具有绕组之间的开关的电力转换器
公开(公告)号：US20110156689A1
公开(公告)日：2011-06-30
申请号：US12648003
申请日：2009-12-28
申请人： David Michael Hugh Matthews
发明人： David Michael Hugh Matthews
IPC分类号： G05F1/56
CPC分类号： H02M3/155
摘要： An example power converter includes a first winding, a second winding, a switch, and a controller. The second winding is magnetically coupled to the first winding and the switch is coupled between the first winding and the second winding such that a current flows through the first winding, the second winding and the switch when the switch is in an ON state. The controller is coupled to control the switch to regulate an output of the power converter in response to a feedback signal.
摘要翻译：示例性功率转换器包括第一绕组，第二绕组，开关和控制器。第二绕组磁耦合到第一绕组，并且开关耦合在第一绕组和第二绕组之间，使得当开关处于导通状态时，电流流过第一绕组，第二绕组和开关。控制器被耦合以控制开关以响应于反馈信号来调节功率转换器的输出。

9. 发明授权

US07924132B2 Method and apparatus for transferring energy in a power converter circuit 失效
标题翻译：用于在功率转换器电路中传送能量的方法和装置
公开(公告)号：US07924132B2
公开(公告)日：2011-04-12
申请号：US12349414
申请日：2009-01-06
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.
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。

10. 发明授权

US07834605B2 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：US07834605B2
公开(公告)日：2010-11-16
申请号：US12581054
申请日：2009-10-16
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 that has a first input coupled to sense a voltage representative of a current flowing through a switch during an on time of the switch. The comparator has a second input coupled to receive a variable current limit threshold that increases during the on time of the switch. A feedback circuit is coupled to receive a feedback signal representative of an output voltage at an output of a power supply. A control circuit is coupled to generate a control signal in response to an output of the comparator and in response to an output of the feedback circuit. The control signal is to be coupled to a control terminal of the switch to control switching of the switch.
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，其具有耦合以在开关导通期间感测代表流过开关的电流的电压的第一输入。比较器具有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的第二输入。耦合反馈电路以接收代表电源输出端的输出电压的反馈信号。控制电路被耦合以响应于比较器的输出并且响应于反馈电路的输出而产生控制信号。控制信号要耦合到开关的控制端，以控制开关的切换。

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