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41. 发明授权

US07453710B2 Transformerless safety isolation in a power supply using safety capacitors for galvanic isolation 有权
标题翻译：使用安全电容器进行电隔离的电源中的无变压器安全隔离
公开(公告)号：US07453710B2
公开(公告)日：2008-11-18
申请号：US11412630
申请日：2006-04-26
申请人： Stefan Bäurle , David Michael Hugh Matthews , Roland S. Saint-Pierre
发明人： Stefan Bäurle , David Michael Hugh Matthews , Roland S. Saint-Pierre
IPC分类号： H02H7/125
CPC分类号： H02M3/07
摘要： An apparatus and method are disclosed to provide transformerless safety isolation in a power supply. One example regulated power converter includes input terminals included in a primary circuit of the power converter. Output terminals are included in a secondary circuit of the power converter. A plurality of safety capacitors including first and second safety capacitors are also included. Each of the plurality of safety capacitors includes a respective first terminal coupled to the primary circuit and a respective second terminal coupled to the secondary circuit. The plurality of safety capacitors galvanically isolates the primary circuit from the secondary circuit. A power switch is included in the primary circuit. The power switch is coupled such that switching of the power switch causes energy to transfer between the primary and secondary circuits through the plurality of safety capacitors. Substantially all of the energy that is transferred between the primary and secondary circuits is through the plurality of safety capacitors.
摘要翻译：公开了一种在电源中提供无变压器安全隔离的装置和方法。一个示例性调节功率转换器包括包括在功率转换器的初级电路中的输入端子。输出端子被包括在功率转换器的次级电路中。还包括包括第一和第二安全电容器的多个安全电容器。多个安全电容器中的每一个包括耦合到主电路的相应的第一端子和耦合到次级电路的相应的第二端子。多个安全电容器将初级电路与次级电路电隔离。电源开关包含在主电路中。功率开关被耦合，使得功率开关的切换导致能量通过多个安全电容器在初级和次级电路之间传递。在主电路和次级电路之间传输的基本上所有的能量通过多个安全电容器。

42. 发明申请

US20080136392A1 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维持恒定最大功率的方法和装置
公开(公告)号：US20080136392A1
公开(公告)日：2008-06-12
申请号：US12020435
申请日：2008-01-25
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： G05F1/00
CPC分类号： H02M1/32 , G05F3/262 , H02M3/156 , H02M3/33507 , H02M7/003 , H02M2001/0093 , H03K17/0822
摘要： A method which regulates a power supply. In one aspect of the invention, the method includes switching a power switch of a power supply regulator at an operating frequency (f) during operation of the power supply regulator. A current through the power switch is controlled to keep the current through the power switch below a peak current limit threshold (Ip) during operation of the power supply regulator. The maximum deliverable power value of a power supply to be regulated by the power supply regulator is controlled by trimming of the power supply such that the operating frequency (f) and the peak current limit threshold (Ip) are substantially dependent upon each other.
摘要翻译：调节电源的方法。在本发明的一个方面，该方法包括在电源调节器运行期间以工作频率（f）切换电源调节器的电源开关。通过电源开关的电流被控制，以在电源调节器的操作期间使电流通过电源开关低于峰值电流限制阈值（I
P ）。通过修整电源来控制由电源调节器调节的电源的最大可输出功率值，使得工作频率（f）和峰值电流限制阈值（I P）基本上彼此依赖。

43. 发明申请

US20080084712A1 Method and apparatus for a control circuit responsive to an impedance coupled to a control circuit terminal 有权
标题翻译：用于响应耦合到控制电路端子的阻抗的控制电路的方法和装置
公开(公告)号：US20080084712A1
公开(公告)日：2008-04-10
申请号：US11543506
申请日：2006-10-04
申请人： Zhao-Jun Wang , Stefan Baurle , David Michael Hugh Matthews
发明人： Zhao-Jun Wang , Stefan Baurle , David Michael Hugh Matthews
IPC分类号： H02M3/335
CPC分类号： H02M3/33523 , H02M1/32 , H02M3/33507
摘要： A power supply controller method and apparatus measuring impedance is disclosed. An apparatus according to aspects of the present invention includes a sense circuit coupled to a sense terminal. A regulation circuit coupled to the sense circuit and coupled to regulate the sense terminal to a first voltage level when a current flowing through the sense terminal is less than a first threshold current level. The regulation circuit is further coupled to regulate the sense terminal to a second voltage level when the current flowing through the sense terminal reaches the first threshold current level. A response circuit is coupled to the sense circuit and is responsive to the current flowing through the sense terminal when the sense terminal is regulated at the second voltage level.
摘要翻译：公开了一种测量阻抗的电源控制器方法和装置。根据本发明的方面的装置包括耦合到感测端子的感测电路。耦合到所述感测电路并且被耦合以在流过所述感测端子的电流小于第一阈值电流电平时将所述感测端子调节到第一电压电平的调节电路。当流过感测端的电流达到第一阈值电流电平时，调节电路还被耦合以将感测端子调节到第二电压电平。响应电路耦合到感测电路，并且当感测端子被调节在第二电压电平时响应于流过感测端子的电流。

44. 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.

45. 发明授权

US07109696B2 Method and apparatus for trimming current limit and frequency to maintain a constant maximum power 有权
公开(公告)号：US07109696B2
公开(公告)日：2006-09-19
申请号：US11237254
申请日：2005-09-28
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 , G02B5/32
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.

46. 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。

47. 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。

48. 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。

49. 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。

50. 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。

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