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81. 发明授权

US09343978B2 Method and apparatus for a control circuit with multiple operating modes 有权
标题翻译：具有多种工作模式的控制电路的方法和装置
公开(公告)号：US09343978B2
公开(公告)日：2016-05-17
申请号：US14308467
申请日：2014-06-18
申请人： Power Integrations, Inc.
发明人： Stefan Bäurle , Giao Pham
IPC分类号： H02M3/335
CPC分类号： H02M3/33515 , H02M3/33507
摘要： 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.
摘要翻译：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。

82. 发明授权

US09343953B2 Pre-distortion of sensed current in a power factor correction circuit 有权
标题翻译：在功率因数校正电路中检测电流的预失真
公开(公告)号：US09343953B2
公开(公告)日：2016-05-17
申请号：US14018954
申请日：2013-09-05
申请人： Power Integrations, Inc.
发明人： Roger Colbeck
IPC分类号： H02M7/68 , H02M1/42 , H02M1/00
CPC分类号： H02M1/42 , H02M1/4225 , H02M2001/0009 , Y02B70/126 , H02M2001/0022 , H02M2001/0016
摘要： 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.
摘要翻译：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。

83. 发明授权

US09332614B2 LED driver circuit with open load detection 有权
标题翻译： LED驱动电路具有开路负载检测功能
公开(公告)号：US09332614B2
公开(公告)日：2016-05-03
申请号：US14500841
申请日：2014-09-29
申请人： Power Integrations, Inc.
发明人： Peter Vaughan , Ricardo L. J. Pregitzer
IPC分类号： H05B37/02 , H05B33/08
CPC分类号： H05B33/089 , H05B33/0815 , H05B33/0845 , H05B33/0887 , H05B37/02
摘要： 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.
摘要翻译：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。

84. 发明授权

US09331587B2 Power converter controller with multiple power sources 有权
标题翻译：具有多个电源的电源转换器控制器
公开(公告)号：US09331587B2
公开(公告)日：2016-05-03
申请号：US13747089
申请日：2013-01-22
申请人： Power Integrations, Inc.
发明人： Alex B. Djenguerian , Sheng Liu , Leif Lund
IPC分类号： H02M3/335 , H02M1/00
CPC分类号： H02M3/33515 , H02M3/33523 , H02M3/33592 , H02M2001/0006 , Y02B70/1475
摘要： 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.
摘要翻译：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。

85. 发明授权

US09330837B2 Energy transfer assembly with tuned leakage inductance and common mode noise compensation 有权
标题翻译：具有调谐漏电感和共模噪声补偿的能量传输组件
公开(公告)号：US09330837B2
公开(公告)日：2016-05-03
申请号：US14085521
申请日：2013-11-20
申请人： Power Integrations, Inc.
发明人： Jason E. Cuadra , John R. Estabrooks , Raymond K. Orr
IPC分类号： H01F27/28 , H01F27/30 , H01F38/14 , H01F27/32 , H01F27/34 , H02M3/338 , H02M1/44
CPC分类号： H01F38/14 , H01F27/324 , H01F27/34 , H02M1/44 , H02M3/3382 , Y02B70/1433
摘要： 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.
摘要翻译：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。

86. 发明授权

US09275946B2 Switch mode power converters using magnetically coupled galvanically isolated lead frame communication 有权
标题翻译：开关模式电源转换器采用磁耦合电隔离引线框架通讯
公开(公告)号：US09275946B2
公开(公告)日：2016-03-01
申请号：US14629227
申请日：2015-02-23
申请人： Power Integrations, Inc.
发明人： Balu Balakrishnan , David Michael Hugh Matthews
IPC分类号： H01L23/495 , H02M3/00 , H01L23/48 , H01L23/552 , H01L23/66 , H01L23/00 , H02M3/335
CPC分类号： 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
摘要： 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.
摘要翻译：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。

87. 发明授权

US09253832B2 Power supply circuit with a control terminal for different functional modes of operation 有权
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：US09253832B2
公开(公告)日：2016-02-02
申请号：US14151423
申请日：2014-01-09
申请人： Power Integrations, Inc.
发明人： Yury Gaknoki , Tiziano Pastore , Mingming Mao , David Michael Hugh Matthews
IPC分类号： H02M3/335 , H05B33/08 , H02M3/156
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。

88. 发明授权

US09214851B1 Trailing edge detector using current collapse 有权
标题翻译：使用电流崩溃的后缘检测器
公开(公告)号：US09214851B1
公开(公告)日：2015-12-15
申请号：US14322760
申请日：2014-07-02
申请人： Power Integrations, Inc.
发明人： Mingming Mao , Ricardo Luis Janezic Pregitzer , Tiziano Pastore , Michael Yue Zhang
IPC分类号： H05B37/00 , H02M1/08 , H02M3/335
CPC分类号： H02M3/33507 , H02M1/08 , H03K5/1534 , H05B33/0815
摘要： A controller for a power converter compares a voltage sense signal to a first reference and compares a current sense signal to a current sense signal. The voltage sense signal is representative of an input voltage of the power converter. The current sense signal is representative of a current through the power converter. A slope of the voltage sense signal is measured over time. An edge detection is asserted by the controller when (1) the voltage sense signal is larger than the first reference, (2) the current sense signal is lower than the second reference, and (3) the slope is a negative slope.
摘要翻译：用于功率转换器的控制器将电压检测信号与第一参考电压进行比较，并将电流检测信号与电流检测信号进行比较。电压检测信号代表功率转换器的输入电压。电流检测信号代表通过功率转换器的电流。随时间测量电压检测信号的斜率。（1）电压检测信号大于第一参考值时，由控制器确定边沿检测，（2）电流检测信号低于第二参考值，（3）斜率为负斜率。

89. 发明申请

US20150333630A1 MULTI-PACE CONTROLLER 有权
标题翻译：多控制器
公开(公告)号：US20150333630A1
公开(公告)日：2015-11-19
申请号：US14276812
申请日：2014-05-13
申请人： Power Integrations, Inc.
发明人： Tiziano Pastore , Ricardo Luis Janezic Pregitzer , Mingming Mao , Peter Vaughan
IPC分类号： H02M3/335
CPC分类号： H02M3/33515 , H02M1/4258 , H02M3/33507 , H02M2001/0012 , H02M2001/0025 , Y02B70/126
摘要： A controller for controlling a power supply includes a feedback signal generator to generate a feedback signal representative of an output current in response to an output sense signal. A state selector circuit receives the feedback signal and outputs a digital state signal to set an operational state of a switch of the power supply. The state selector circuit adjusts the digital state signal in response to feedback information at an end of a feedback period. A driver circuit receives the digital state signal and generates a drive signal in response to the digital state signal. The drive signal drives switching of the switch in accordance with the operational state of the switch.
摘要翻译：用于控制电源的控制器包括反馈信号发生器，以响应于输出感测信号产生表示输出电流的反馈信号。状态选择器电路接收反馈信号并输出数字状态信号以设置电源开关的操作状态。状态选择器电路响应于在反馈周期结束时的反馈信息来调整数字状态信号。驱动电路接收数字状态信号并响应数字状态信号产生驱动信号。驱动信号根据开关的工作状态驱动开关的切换。

90. 发明申请

US20150312978A1 MULTI-BLEEDER MODE CONTROL FOR IMPROVED LED DRIVER PERFORMANCE 有权
标题翻译：用于改进LED驱动器性能的多BEREDER模式控制
公开(公告)号：US20150312978A1
公开(公告)日：2015-10-29
申请号：US14261271
申请日：2014-04-24
申请人： Power Integrations, Inc.
发明人： Peter VAUGHAN , Ricardo L. J. PREGITZER
IPC分类号： H05B33/08
CPC分类号： H05B33/089 , H05B33/0815 , H05B33/0845 , H05B37/02
摘要： Various examples directed to phase-dimming LED driver input circuitry having multiple bleeder circuits activated by a controller with multi-bleeder mode control are disclosed. In one example, the input circuitry may include multiple bleeder circuits controlled by the controller in an open-loop or closed-loop configuration. The controller may selectively activate or deactivate the multiple bleeder circuits based on the input line voltage, the dimming state, and the type of dimming being implemented to improve performance of the LED driver by preventing or reducing shimmering/blinking and by reducing bleeder loss.
摘要翻译：公开了涉及具有多个泄放电路的相位调光LED驱动器输入电路的各种示例，该多个泄放电路由具有多次放电模式控制的控制器激活。在一个示例中，输入电路可以包括以开环或闭环配置由控制器控制的多个泄放电路。控制器可以基于输入线路电压，调光状态和调光类型来选择性地启动或停用多个泄放电路，以通过防止或减少闪烁/闪烁并减少泄放损失来提高LED驱动器的性能。

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