公开(公告)号：US09419528B2

公开(公告)日：2016-08-16

申请号：US14937662

申请日：2015-11-10

Applicant: POWER INTEGRATIONS, INC.

Inventor： Mingming Mao ,  Ricardo Luis Janezic Pregitzer ,  Tiziano Pastore ,  Michael Yue Zhang

IPC: H02M3/00 ,  H02M3/335 ,  H02M1/08 ,  H05B33/08 ,  H03K5/1534

CPC classification number: H02M3/33507 ,  H02M1/08 ,  H03K5/1534 ,  H05B33/0815

Abstract: A controller for a power converter includes an edge detection circuit including a first circuit coupled to coupled to compare a voltage sense signal representative of an input voltage to a first reference, and a second circuit coupled to compare a current sense signal representative of an input current to a second reference. A slope sense circuit is coupled to measure a slope of the voltage sense signal over time. An edge driver circuit is coupled to generate an edge signal that indicates that an edge has been determined when the voltage sense signal is greater than the first reference, the current sense signal is lower than the second reference, and the slope is negative. A drive circuit is coupled to output a drive signal in response to the edge signal. The drive signal is for controlling a switch coupled to regulate an output of the power converter.

Abstract translation: 一种用于功率转换器的控制器包括边缘检测电路，其包括耦合以耦合以将表示输入电压的电压感测信号与第一参考值进行比较的第一电路和耦合以比较表示输入电流的电流感测信号的第二电路 到第二个参考。 耦合斜率检测电路以测量电压检测信号随时间的斜率。 边缘驱动器电路被耦合以产生边缘信号，其指示当电压检测信号大于第一参考值时电流检测信号低于第二参考值，并且斜率为负值时已经确定了边沿。 驱动电路被耦合以响应于边缘信号输出驱动信号。 驱动信号用于控制耦合以调节功率转换器的输出的开关。

公开(公告)号：US09408261B2

公开(公告)日：2016-08-02

申请号：US14246770

申请日：2014-04-07

Applicant: Power Integrations, Inc.

Inventor： Christian Pura Angeles ,  Marvin C. Espino

IPC: H05B33/08 ,  H02M7/155 ,  H02M7/217 ,  H02M1/00

CPC classification number: H05B33/0815 ,  H02M7/1557 ,  H02M7/2176 ,  H02M2001/0022 ,  H05B33/0809 ,  H05B33/0845

Abstract: A circuit to be utilized for an LED driver bleeder activation. The circuit comprises a circuit block for timing a duration of any removed portion of a rectified line signal. The input of the circuit to be coupled to receive the phase controlled rectified line signal through a voltage divider. Comparing the divided rectified line signal with a threshold voltage and output a comparison result. A timer coupled to the comparator and responsive to the comparison result to time the duration of the removed portion of the rectified line signal and activate the bleeder activation circuitry to turn on the switching element of the bleeder to sink a controlled current from the input line.

Abstract translation: 用于LED驱动器泄放器激活的电路。 电路包括用于定时整流线路信号的任何去除部分的持续时间的电路块。 待耦合的电路的输入端通过分压器接收相控整流线路信号。 将分频整流线信号与阈值电压进行比较，并输出比较结果。 一个定时器，其耦合到所述比较器，并且响应于所述比较结果来对所述经整流的线路信号的去除部分的持续时间进行计时，并启动所述放电器启动电路以接通所述放电器的所述开关元件以从所述输入线吸收受控电流。

公开(公告)号：US09401660B2

公开(公告)日：2016-07-26

申请号：US14157786

申请日：2014-01-17

Applicant: Power Integrations, Inc.

Inventor： David Kung ,  Balu Balakrishnan

IPC: H02M7/219 ,  H02M7/217

CPC classification number: H02M7/219 ,  H02M7/217 ,  H02M7/2176 ,  H02M2007/2195

Abstract: An integrated circuit (IC) comprises a rectifier/regulator circuit coupled to receive an ac source voltage and output a regulated dc voltage. The rectifier/regulator circuit includes first and second switching elements that provide charging current when enabled. The first and second switching elements do not provide charging current when disabled. A sensor circuit is coupled to sense the regulated dc voltage and generate a feedback control signal coupled to the rectifier/regulator circuit that enables the first and second switching elements when the regulated do voltage is above a target voltage, and disables the first and second switching elements when the regulated do voltage is below the target voltage.

Abstract translation: 集成电路（IC）包括整流器/调节器电路，其耦合以接收交流电源电压并输出调节的直流电压。 整流器/调节器电路包括当使能时提供充电电流的第一和第二开关元件。 禁用时，第一和第二开关元件不提供充电电流。 传感器电路被耦合以感测调节的直流电压并且产生耦合到整流器/调节器电路的反馈控制信号，当调节的电压高于目标电压时，能够使第一和第二开关元件，并且禁用第一和第二开关 当调节的电压低于目标电压时，元件。

公开(公告)号：US09401634B2

公开(公告)日：2016-07-26

申请号：US13644822

申请日：2012-10-04

Applicant: Power Integrations, Inc.

Inventor： Yury Gaknoki ,  Mingming Mao ,  Robert J. Mayell

IPC: H02M3/22 ,  H02M1/40 ,  H02M3/335

CPC classification number: H02M1/40 ,  H02M3/22 ,  H02M3/33538 ,  H02M3/33546

Abstract: A controller for use in a power converter includes logic circuits to turn on and off a switch to regulate an output quantity. A first integrating capacitor is charged with a combination of a first current and a second current while the switch is turned on. The first current is proportional to a reset voltage and the second current is proportional to an input voltage. A reference generation circuit including a second integrating capacitor is charged with the first current during a previous switching cycle of the switch. The reference generation circuit generates a reference voltage in response to the second integrating capacitor. A comparator provides a stop signal to the logic circuits to turn off the switch in response to a comparison of a voltage across the first integrating capacitor with the reference voltage.

Abstract translation: 用于功率转换器的控制器包括用于打开和关闭开关以调节输出量的逻辑电路。 当开关导通时，第一积分电容器被充以第一电流和第二电流的组合。 第一电流与复位电压成比例，第二电流与输入电压成比例。 包括第二积分电容器的参考生成电路在开关的先前切换周期期间被充入第一电流。 参考产生电路响应于第二积分电容产生参考电压。 比较器响应于第一积分电容器两端的电压与参考电压的比较，向逻辑电路提供停止信号以关断开关。

公开(公告)号：US09343978B2

公开(公告)日：2016-05-17

申请号：US14308467

申请日：2014-06-18

Applicant: Power Integrations, Inc.

Inventor： Stefan Bäurle ,  Giao Pham

IPC: H02M3/335

CPC classification number: H02M3/33515 ,  H02M3/33507

Abstract: A controller for use in a power converter includes an oscillator that generates a first signal that determines a duration of a switching cycle period of a switch included in the power converter. The controller also includes a logic circuit that generates a second signal to control switching of the switch in response to a feedback signal and in response to the first signal. The logic circuit generates the second signal to control a peak switch current of the switch during each switching cycle period according to either a first mode of operation or a second mode of operation. The peak switch current of the switch is varied in the first mode of operation in response to the feedback signal indicating that an output load is greater than a threshold and the peak switch current of the switch is kept at a constant value in the second mode of operation in response to the feedback signal indicating that the output load is less than the threshold.

Abstract translation: 用于功率转换器的控制器包括产生确定电力转换器中包括的开关的开关周期的持续时间的第一信号的振荡器。 控制器还包括逻辑电路，其产生响应于反馈信号并且响应于第一信号来控制开关的开关的第二信号。 逻辑电路产生第二信号，以根据第一操作模式或第二操作模式在每个开关周期期间控制开关的峰值开关电流。 开关的峰值开关电流在第一操作模式下响应于反馈信号指示输出负载大于阈值而变化，并且开关的峰值开关电流在第二模式中保持在恒定值 响应于反馈信号指示输出负载小于阈值的操作。

公开(公告)号：US09343953B2

公开(公告)日：2016-05-17

申请号：US14018954

申请日：2013-09-05

Applicant: Power Integrations, Inc.

Inventor： Roger Colbeck

IPC: H02M7/68 ,  H02M1/42 ,  H02M1/00

CPC classification number: H02M1/42 ,  H02M1/4225 ,  H02M2001/0009 ,  Y02B70/126 ,  H02M2001/0022 ,  H02M2001/0016

Abstract: An example controller includes a power factor enhancer, an on-time controller, and a switching signal generator. The power factor enhancer is coupled to generate a pre-distortion signal each half-line cycle of an ac input voltage of a PFC converter. The on-time controller ends an on-time of a PFC switch in response to a sensed PFC switch current of the PFC converter multiplied by the pre-distortion signal. The switching signal generator controls an input current waveform of the PFC converter to substantially follow a shape of an input voltage waveform by generating a switching signal in response to the on-time controller to control switching of the PFC switch. The power factor enhancer adjusts the pre-distortion signal to pre-distort the sensed PFC switch current to compensate for distortion in the input current waveform.

Abstract translation: 示例性控制器包括功率因数增强器，导通时间控制器和开关信号发生器。 功率因数增强器被耦合以产生PFC转换器的交流输入电压的每个半行周期的预失真信号。 导通时间控制器响应于PFC转换器感测的PFC开关电流乘以预失真信号而结束PFC开关的接通时间。 开关信号发生器通过响应于导通时间控制器产生开关信号来控制PFC转换器的输入电流波形，以基本上遵循输入电压波形的形状，以控制PFC开关的切换。 功率因数增强器调整预失真信号，以使所感测的PFC开关电流预失真，以补偿输入电流波形中的失真。

公开(公告)号：US09332614B2

公开(公告)日：2016-05-03

申请号：US14500841

申请日：2014-09-29

Applicant: Power Integrations, Inc.

Inventor： Peter Vaughan ,  Ricardo L. J. Pregitzer

IPC: H05B37/02 ,  H05B33/08

CPC classification number: H05B33/089 ,  H05B33/0815 ,  H05B33/0845 ,  H05B33/0887 ,  H05B37/02

Abstract: Various examples directed to LED driver circuits capable of detecting the removal of an LED load are disclosed. In one example, the LED driver circuit may include a bleeder and load disconnect detection circuit having a bleeder circuit and a bleeder controller coupled to control the bleeder circuit. The bleeder controller may cause the bleeder circuit to draw a bleeder current that functions to supplement a load current drawn by an LED load to cause an input current of the LED driver circuit to be greater than a minimum holding current of a dimmer circuit. The bleeder controller may be further configured to detect a disconnect of the LED load based on the input current of the LED driver circuit, the bleeder control signal, and/or the bleeder current. In response to detecting a disconnect of the LED load, the bleeder controller may disable operation of the bleeder circuit.

Abstract translation: 公开了针对能够检测LED负载的去除的LED驱动电路的各种示例。 在一个示例中，LED驱动器电路可以包括泄放器和负载断开检测电路，其具有泄放电路和耦合以控制泄放电路的泄放控制器。 泄放控制器可以使泄放电路抽出泄放电流，其功能用于补充由LED负载引起的负载电流，以使LED驱动电路的输入电流大于调光电路的最小保持电流。 泄放控制器还可以被配置为基于LED驱动电路的输入电流，泄放控制信号和/或泄放电流来检测LED负载的断开。 响应于检测到LED负载的断开，泄放控制器可以禁止泄放电路的操作。

公开(公告)号：US09331587B2

公开(公告)日：2016-05-03

申请号：US13747089

申请日：2013-01-22

Applicant: Power Integrations, Inc.

Inventor： Alex B. Djenguerian ,  Sheng Liu ,  Leif Lund

IPC: H02M3/335 ,  H02M1/00

CPC classification number: H02M3/33515 ,  H02M3/33523 ,  H02M3/33592 ,  H02M2001/0006 ,  Y02B70/1475

Abstract: A controller includes a bypass terminal, a first power circuit, a second power circuit, and a charging control circuit. The bypass terminal is to be coupled to a bypass capacitor coupled to a secondary side of an isolated power converter. The first power circuit is coupled to the bypass terminal and a first terminal to be coupled to a first node of the secondary side. The first power circuit transfers charge from the first terminal to the bypass terminal for storage on the bypass capacitor. The second power circuit is coupled to the bypass terminal and a second terminal to be coupled to a second node of the secondary side. The second power circuit transfers charge from the second terminal to the bypass terminal for storage on the bypass capacitor. The charging control circuit controls which of the first and second power circuits transfers charge to the bypass terminal.

Abstract translation: 控制器包括旁路端子，第一电源电路，第二电源电路和充电控制电路。 旁路端子将耦合到耦合到隔离功率转换器的次级侧的旁路电容器。 第一电源电路耦合到旁路端子和要耦合到次级侧的第一节点的第一端子。 第一个电源电路将电荷从第一个端子传输到旁路端子，用于存储在旁路电容器上。 第二电源电路耦合到旁路端子和第二端子以耦合到次级侧的第二节点。 第二电源电路将电荷从第二端子转移到旁路端子以用于存储在旁路电容器上。 充电控制电路控制第一和第二电力电路中的哪一个将电荷转移到旁路端子。

公开(公告)号：US09330837B2

公开(公告)日：2016-05-03

申请号：US14085521

申请日：2013-11-20

Applicant: Power Integrations, Inc.

Inventor： Jason E. Cuadra ,  John R. Estabrooks ,  Raymond K. Orr

IPC: H01F27/28 ,  H01F27/30 ,  H01F38/14 ,  H01F27/32 ,  H01F27/34 ,  H02M3/338 ,  H02M1/44

CPC classification number: H01F38/14 ,  H01F27/324 ,  H01F27/34 ,  H02M1/44 ,  H02M3/3382 ,  Y02B70/1433

Abstract: An energy transfer assembly includes first and second windings wound around a bobbin. The first winding has a first number of layers proximate to a first end and a second number of layers proximate to a second end of the bobbin. The second winding has a third number of layers proximate to the first end and a fourth number of layers proximate to the second end. At least a portion of one of the first and second windings overlaps at least a portion of the other one of the first and second windings. A degree of overlap between the first and second windings is non-uniform. An isolation barrier is between the first and second windings and around the bobbin. A distance between the isolation barrier and an axis of the bobbin varies along the length of the bobbin.

Abstract translation: 能量传递组件包括缠绕在线轴上的第一和第二绕组。 第一绕组具有靠近第一端的第一数量的层和靠近线轴的第二端的第二数量的层。 第二绕组具有靠近第一端的第三数量的层和靠近第二端的第四数量的层。 第一和第二绕组中的一个的至少一部分与第一和第二绕组中的另一个的至少一部分重叠。 第一和第二绕组之间的重叠程度是不均匀的。 隔离屏障是在第一和第二绕组之间以及绕线筒。 隔离屏障和线轴之间的距离沿着线轴的长度而变化。

公开(公告)号：US09275946B2

公开(公告)日：2016-03-01

申请号：US14629227

申请日：2015-02-23

Applicant: Power Integrations, Inc.

Inventor： Balu Balakrishnan ,  David Michael Hugh Matthews

IPC: H01L23/495 ,  H02M3/00 ,  H01L23/48 ,  H01L23/552 ,  H01L23/66 ,  H01L23/00 ,  H02M3/335

CPC classification number: H01L23/49575 ,  H01L23/48 ,  H01L23/495 ,  H01L23/49541 ,  H01L23/552 ,  H01L23/66 ,  H01L24/48 ,  H01L24/49 ,  H01L2224/29099 ,  H01L2224/32245 ,  H01L2224/48247 ,  H01L2224/48257 ,  H01L2224/4911 ,  H01L2224/49111 ,  H01L2224/49171 ,  H01L2224/73265 ,  H01L2924/00014 ,  H01L2924/12032 ,  H01L2924/1305 ,  H01L2924/13055 ,  H01L2924/13091 ,  H01L2924/181 ,  H01L2924/19107 ,  H01L2924/30107 ,  H02M3/00 ,  H02M3/33523 ,  H01L2924/00 ,  H01L2224/45099

Abstract: An integrated circuit package for use in a switch mode power converter includes a portion of a lead frame disposed within an encapsulation. The lead frame includes a first conductor having an inner conductive loop disposed within the encapsulation, and a second conductor galvanically isolated from the first conductor having an outer conductive loop disposed within the encapsulation and magnetically coupled to the first conductive loop to provide a communication link between the first and second conductors. First and second control circuits are coupled to the first and second conductors, respectively. The first control circuit is coupled to control a switching circuit in response to one or more control signals communicated between first and second dice that include the first and second control circuits, respectively, through the communication link to regulate a transfer of energy from an input to an output of the switch mode power converter.

Abstract translation: 用于开关模式功率转换器的集成电路封装包括布置在封装内的引线框架的一部分。 引线框架包括具有设置在封装内的内部导电回路的第一导体，以及与第一导体电隔离的第二导体，其具有布置在封装内的外部导电环，并且磁耦合到第一导电环，以提供 第一和第二导体。 第一和第二控制电路分别耦合到第一和第二导体。 第一控制电路被耦合以响应于通过通信链路分别在包括第一和第二控制电路的第一和第二骰子之间传送的一个或多个控制信号来控制开关电路，以调节能量从输入到 开关模式电源转换器的输出。