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71. 发明授权

US09306014B1 High-electron-mobility transistors 有权
标题翻译：高电子迁移率晶体管
公开(公告)号：US09306014B1
公开(公告)日：2016-04-05
申请号：US14581645
申请日：2014-12-23
申请人： POWER INTEGRATIONS, INC.
发明人： Alexey Kudymov , Jamal Ramdani , Linlin Liu
IPC分类号： H01L29/778 , H01L29/40 , H01L29/66 , H01L29/51
CPC分类号： H01L29/7787 , H01L29/2003 , H01L29/205 , H01L29/404 , H01L29/518 , H01L29/66462 , H01L29/7786
摘要： High-electron-mobility transistors that include field plates are described. In a first implementation, a HEMT includes a first and a second semiconductor material disposed to form a heterojunction at which a two-dimensional electron gas arises and source, a drain, and gate electrodes. The gate electrode is disposed to regulate conduction in the heterojunction between the source electrode and the drain electrode. The gate has a drain-side edge. A gate-connected field plate is disposed above a drain-side edge of the gate electrode and extends laterally toward the drain. A second field plate is disposed above a drain-side edge of the gate-connected field plate and extends laterally toward the drain.
摘要翻译：描述了包括场板的高电子迁移率晶体管。在第一实施方案中，HEMT包括第一和第二半导体材料，其设置成形成二维电子气产生的异质结，源极，漏极和栅电极。栅电极设置成调节源电极和漏电极之间的异质结中的导通。门具有排水侧边缘。栅极连接的场板设置在栅电极的漏极侧边缘的上方并且横向地朝向漏极延伸。第二场板设置在栅极连接的场板的漏极侧边缘的上方，并且朝向漏极横向延伸。

72. 发明授权

US09271352B2 Line ripple compensation for shimmerless LED driver 有权
标题翻译：无闪烁LED驱动器的线路纹波补偿
公开(公告)号：US09271352B2
公开(公告)日：2016-02-23
申请号：US14303301
申请日：2014-06-12
申请人： Power Integrations, Inc.
发明人： Mingming Mao , Tiziano Pastore , Ricardo Luis Janezic Pregitzer , Michael Yue Zhang , Peter Vaughan
IPC分类号： H05B37/02 , H05B33/08
CPC分类号： H05B33/0815 , H02M1/14 , H02M3/33507 , H05B33/0845
摘要： A power converter controller includes an oscillator, a drive circuit, and a frequency modulator. The drive circuit receives a clock signal from the oscillator and generates a drive signal in response thereto to control switching of a switch of the power converter. The frequency modulator controls the frequency of the clock signal in response to an inductor voltage across an inductor of the energy transfer element to reduce a peak-to-peak ripple value in an output current of the power converter. The frequency modulator controls the frequency of the clock signal during each line half cycle to be a fixed frequency when the inductor voltage is less than or equal to a threshold voltage. When the inductor voltage is greater than the threshold voltage the frequency modulator varies the frequency to be less than the fixed frequency to adjust a shape of an input current of the power converter.
摘要翻译：电力转换器控制器包括振荡器，驱动电路和频率调制器。驱动电路从振荡器接收时钟信号，并响应于此产生驱动信号以控制功率转换器的开关的切换。频率调制器响应于能量传递元件的电感器上的电感器电压来控制时钟信号的频率，以减小功率转换器的输出电流中的峰 - 峰纹波值。当电感电压小于或等于阈值电压时，频率调制器将每个线路半周期期间的时钟信号的频率控制为固定频率。当电感电压大于阈值电压时，频率调制器将频率改变为小于固定频率，以调整功率转换器的输入电流的形状。

73. 发明授权

US09263934B2 Method and apparatus for determining zero-crossing of an ac input voltage to a power supply 有权
标题翻译：用于确定交流输入电压到电源的过零点的方法和装置
公开(公告)号：US09263934B2
公开(公告)日：2016-02-16
申请号：US13974884
申请日：2013-08-23
申请人： Power Integrations, Inc.
发明人： Yury Gaknoki , Mingming Mao , Tiziano Pastore
IPC分类号： H02M3/335 , H02M1/08 , H02M7/06
CPC分类号： H02M1/083 , H02M3/33507 , H02M3/33523 , H02M7/06
摘要： An example controller for a power supply includes a first circuit and a drive signal generator. The first circuit receives a first signal representative of a switch current flowing through a switch of the power supply and then generates a second signal in response the switch current not reaching a current threshold within an amount of time. The second signal indicates when a dimming circuit at an input of the power supply is utilized. The drive signal generator generates a drive signal to control switching of the switch in response to the second signal, where energy is transferred across an energy transfer element of the power supply in response to the switching of the switch.
摘要翻译：用于电源的示例性控制器包括第一电路和驱动信号发生器。第一电路接收表示流过电源开关的开关电流的第一信号，然后响应于在一段时间内未达到电流阈值的开关电流产生第二信号。第二信号指示何时利用电源输入端的调光电路。驱动信号发生器响应于第二信号产生驱动信号以控制开关的切换，其中响应于开关的切换，能量跨越电源的能量传递元件传递。

74. 发明授权

US09245879B2 Static discharge system 有权
标题翻译：静电放电系统
公开(公告)号：US09245879B2
公开(公告)日：2016-01-26
申请号：US13537443
申请日：2012-06-29
申请人： Alexey Kudymov , Jamal Ramdani
发明人： Alexey Kudymov , Jamal Ramdani
IPC分类号： H01L27/088 , H01L27/06 , H01L29/778 , H01L29/20
CPC分类号： H01L23/60 , H01L21/8252 , H01L27/0274 , H01L27/0605 , H01L27/088 , H01L29/2003 , H01L29/205 , H01L29/404 , H01L29/66462 , H01L29/7786 , H01L29/7787 , H03K17/08104
摘要： A semiconductor circuit includes a three-terminal high voltage semiconductor device, a charge distribution structure and a static discharge system. The charge distribution structure has a plurality of conductors with a floating potential. The charge distribution structure is capacitively coupled to a first terminal of the semiconductor device. The static discharge system removes charge that accumulates on at least a subset of the conductors. The static discharge system removes the charge that accumulates on the subset of conductors when the semiconductor device is in a first state while allowing charge to accumulate on the subset of conductors when the semiconductor device is in a second state.
摘要翻译：半导体电路包括三端高压半导体器件，电荷分配结构和静电放电系统。电荷分布结构具有多个具有浮动电位的导体。电荷分布结构电容耦合到半导体器件的第一端子。静电放电系统去除在至少一个导体子集上积累的电荷。当半导体器件处于第一状态时，当半导体器件处于第二状态时允许电荷累积在导体子集上时，静电放电系统去除累积在导体子集上的电荷。

75. 发明授权

US09219418B2 Method and apparatus to reduce audio frequencies in a switching power supply 有权
标题翻译：降低开关电源中音频的方法和装置
公开(公告)号：US09219418B2
公开(公告)日：2015-12-22
申请号：US13971490
申请日：2013-08-20
申请人： Power Integrations, Inc.
发明人： Balu Balakrishnan , Arthur B. Odell
IPC分类号： H02M3/335 , H02M1/00
CPC分类号： H02M3/33507 , H02M3/335 , H02M3/33515 , H02M2001/0035 , Y02B70/16
摘要： An example power supply regulator includes an energy transfer element, a switch, and a controller. The controller includes a switch signal generator, a modulation circuit, and a multi-cycle modulator circuit. The modulation circuit modulates the period of a modulation switching signal when an equivalent switching frequency is greater than a reference frequency and fixes the switching period when the equivalent switching frequency is less than the reference frequency. The multi-cycle modulator circuit enables the switch signal generator to provide a switch signal uninterrupted if the equivalent switching frequency is greater than the reference frequency and disables the switch signal generator for a first time period and then enables the switch signal generator for a second time period when the equivalent frequency is less than the reference frequency. The multi-cycle modulator circuit varies the first time period to regulate the output.
摘要翻译：示例性电源调节器包括能量传递元件，开关和控制器。控制器包括开关信号发生器，调制电路和多周期调制器电路。当等效开关频率大于参考频率时，调制电路调制调制切换信号的周期，并且当等效开关频率小于参考频率时固定开关周期。如果等效开关频率大于参考频率，则多周期调制器电路使得开关信号发生器不间断地提供开关信号，并且在第一时间段内禁用开关信号发生器，然后再次使能开关信号发生器当等效频率小于参考频率时。多周期调制器电路在第一时间段内改变以调节输出。

76. 发明申请

US20150333764A1 DIGITAL-TO-ANALOG CONVERTER CIRCUIT FOR USE IN A POWER CONVERTER 有权
标题翻译：用于电源转换器的数字到模拟转换器电路
公开(公告)号：US20150333764A1
公开(公告)日：2015-11-19
申请号：US14276834
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： H03M1/68 , H03M1/74 , H02M3/335
CPC分类号： H03M1/68 , H02M3/33507 , H02M3/33515 , H03M1/742 , H03M1/745 , H03M1/825
摘要： A digital-to-analog converter circuit includes an input to receive a digital input signal having multiple bits. A modulation circuit is coupled to respond to less significant bits of the digital input signal by outputting a modulation signal that alternates between a logic low level and a logic high level. A digital-to-analog circuit is configured to convert more significant bits of the digital input signal to a first analog level. The digital-to-analog circuit is configured to alternate an analog output between the first analog level corresponding to a value of the more significant bits and a second analog level corresponding to one of adjacent values of the more significant bits in response to the modulation signal.
摘要翻译：数模转换器电路包括用于接收具有多个位的数字输入信号的输入端。耦合调制电路以通过输出在逻辑低电平和逻辑高电平之间交替的调制信号来响应数字输入信号的较低有效位。数模转换电路被配置为将数字输入信号的更高有效位转换为第一模拟电平。数模转换电路被配置为在对应于较高有效位的值的第一模拟电平和对应于较高有效位的相邻值之一的第二模拟电平之间交替模拟输出，以响应于调制信号。

77. 发明授权

US09166575B2 Low threshold voltage comparator 有权
标题翻译：低阈值电压比较器
公开(公告)号：US09166575B2
公开(公告)日：2015-10-20
申请号：US13791723
申请日：2013-03-08
申请人： Power Integrations, Inc.
发明人： Balu Balakrishnan , Alex B. Djenguerian , Leif Lund
IPC分类号： H03K5/153 , H03K5/08 , H02M3/335 , H03K5/24
CPC分类号： H03K5/084 , H02M3/33576 , H02M3/33592 , H03K5/2436 , Y02B70/1475
摘要： A voltage comparator includes an amplifier coupled to receive an input signal at an amplifier input and generate an output signal at an amplifier output in response to the input signal. The amplifier includes a current generation circuit coupled to generate a first current flowing through a first branch and a second current flowing through a second branch. A first transistor has a first terminal coupled to the amplifier input and a second terminal coupled to the first branch. A second transistor has a third terminal coupled to the second branch, a fourth terminal coupled to a reference voltage. A second control terminal of the second transistor is coupled to the first control terminal. An output circuit is coupled to the amplifier output to generate a comparator output signal in response to the output signal. The amplifier output is coupled to the second branch.
摘要翻译：电压比较器包括放大器，耦合以在放大器输入处接收输入信号，并响应于输入信号在放大器输出端产生输出信号。该放大器包括电流产生电路，其被耦合以产生流过第一分支的第一电流和流过第二分支的第二电流。第一晶体管具有耦合到放大器输入的第一端子和耦合到第一分支的第二端子。第二晶体管具有耦合到第二分支的第三端子，耦合到参考电压的第四端子。第二晶体管的第二控制端耦合到第一控制端。输出电路耦合到放大器输出以响应于输出信号产生比较器输出信号。放大器输出耦合到第二分支。

78. 发明申请

US20150295500A1 SAMPLING FOR DIMMER EDGE DETECTION IN POWER CONVERTER 有权
标题翻译：在电源转换器中采集调光器边缘检测
公开(公告)号：US20150295500A1
公开(公告)日：2015-10-15
申请号：US14253190
申请日：2014-04-15
申请人： POWER INTEGRATIONS, INC.
发明人： Mingming Mao , Tiziano Pastore , Ricardo Luis Janezic Pregitzer , Peter Vaughan
IPC分类号： H02M3/335 , H02M1/08 , H05B33/08
CPC分类号： H02M3/33515 , H02M1/081 , H02M1/4258 , H02M5/257 , H05B33/0815 , Y02B20/346 , Y02B70/126
摘要： A controller and a method for controlling a power converter includes a sample block coupled to generate a first, second, and third sample by sampling an input sense signal that is representative of an input voltage of the power converter. An enable signal is asserted when a first difference between the first sample and the second sample exceeds a first threshold. An edge signal is asserted when both the enable signal is asserted and a second difference between the first sample and the third sample exceeds a second threshold. 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.
摘要翻译：用于控制功率转换器的控制器和方法包括：采样块，被耦合以通过对代表功率转换器的输入电压的输入检测信号进行采样来产生第一，第二和第三采样。当第一样本和第二样本之间的第一差异超过第一阈值时，使能信号被断言。当两个使能信号被断言并且第一个采样和第三个采样之间的第二个差值超过第二个阈值时，边沿信号被置位。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。

79. 发明授权

US09136765B2 Techniques for controlling a power converter using multiple controllers 有权
标题翻译：使用多个控制器控制功率转换器的技术
公开(公告)号：US09136765B2
公开(公告)日：2015-09-15
申请号：US13791732
申请日：2013-03-08
申请人： Power Integrations, Inc.
发明人： Balu Balakrishnan , Alex B. Djenguerian , Sheng Liu
IPC分类号： H02M1/36 , H02M3/335 , H02M3/156
CPC分类号： H02M3/33523 , H02M1/36 , H02M3/156 , H02M3/335 , H02M3/33553
摘要： A power converter controller includes a primary controller that is galvanically isolated from a secondary controller. The primary controller controls a state of a power switch during a first mode of operation according to a switching pattern defined by the primary controller. During a second mode of operation, the primary controller controls the state of the power switch in response to control signals received via a communication link. The secondary controller operates in a powered down state during the first mode of operation. The secondary controller initiates a transition operation with the primary controller that transitions the primary controller and the secondary controller from the first mode of operation to the second mode of operation. In the second mode of operation, the secondary controller transmit the control signals to the primary controller via the communication link.
摘要翻译：电力转换器控制器包括与次级控制器电隔离的主控制器。主控制器根据由主控制器定义的切换模式在第一操作模式期间控制电源开关的状态。在第二操作模式期间，主控制器响应于经由通信链路接收的控制信号来控制电源开关的状态。在第一操作模式期间，次级控制器处于断电状态。辅助控制器通过主控制器启动转换操作，主控制器将主控制器和次控制器从第一操作模式转换到第二操作模式。在第二操作模式中，次级控制器经由通信链路将控制信号发送到主控制器。

80. 发明授权

US09087713B2 Semiconductor device with shared region 有权
标题翻译：具有共享区域的半导体器件
公开(公告)号：US09087713B2
公开(公告)日：2015-07-21
申请号：US13650484
申请日：2012-10-12
申请人： Power Integrations, Inc.
发明人： Sujit Banerjee
IPC分类号： H01L29/808 , H01L27/07 , H01L29/861 , H01L29/06 , H02M1/32 , H02M1/36 , H02M1/00
CPC分类号： H01L27/0727 , H01L29/0623 , H01L29/0696 , H01L29/808 , H01L29/861 , H01L29/8611 , H02M1/32 , H02M1/36 , H02M2001/0006
摘要： A semiconductor device having a JFET and diode, includes a substrate, a second well region, and a second doped region that are of a first conductivity type. The JFET also includes a first well region, a first doped region, and a shared region that are of the second conductivity type. The second well region is disposed in the substrate adjacent to the first well region. A source of the JFET includes the first doped region disposed in the first well region. An anode of the diode includes the second doped region disposed in the second well region. Both a drain of the JFET and a cathode of the diode include the shared region disposed in the first well region. A diode current flows along a first lateral axis of the device while a JFET current flows along a second lateral axis of the device.
摘要翻译：具有JFET和二极管的半导体器件包括第一导电类型的衬底，第二阱区和第二掺杂区。 JFET还包括第一导电类型的第一阱区，第一掺杂区和共享区。第二阱区域设置在与第一阱区域相邻的衬底中。 JFET的源极包括设置在第一阱区域中的第一掺杂区域。二极管的阳极包括设置在第二阱区中的第二掺杂区。 JFET的漏极和二极管的阴极都包括设置在第一阱区域中的共享区域。二极管电流沿器件的第一横向轴流动，而JFET电流沿器件的第二横向轴流动。

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