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11. 发明授权

US09024612B2 Buck converter having pulse skipping mode and related method of operation 有权
标题翻译：具有脉冲跳跃模式的降压转换器和相关操作方法
公开(公告)号：US09024612B2
公开(公告)日：2015-05-05
申请号：US13710614
申请日：2012-12-11
申请人： Samsung Electronics Co., Ltd.
发明人： Jinhyuck Yu , Minkyu Song
IPC分类号： H02M3/156 , G05F1/618
CPC分类号： G05F1/618 , H02M3/1588 , H02M2001/0035 , Y02B70/1466 , Y02B70/16
摘要： A buck converter comprises a switching unit configured to control a connection between a power terminal and a load terminal, a PWM controller configured to provide a PWM signal to the switching unit, and a control signal generator configured to generate a first control signal and a second control signal based on a current flowing to the load terminal, wherein the first control signal controls generation of the PWM signal and the second control signal controls a pulse width of the PWM signal.
摘要翻译：降压转换器包括被配置为控制电源端子和负载端子之间的连接的开关单元，配置成向开关单元提供PWM信号的PWM控制器，以及被配置为产生第一控制信号的第二控制信号发生器基于流向负载端子的电流的控制信号，其中第一控制信号控制PWM信号的产生，第二控制信号控制PWM信号的脉冲宽度。

12. 发明授权

US08947191B2 Reactor 有权
标题翻译：反应堆
公开(公告)号：US08947191B2
公开(公告)日：2015-02-03
申请号：US13983886
申请日：2012-02-09
申请人： Kouhei Yoshikawa
发明人： Kouhei Yoshikawa
IPC分类号： H01F17/04 , H01F27/24 , H01F27/30 , H01F27/02 , H01F27/40 , H01F37/00 , G05F1/618 , H02M7/44
CPC分类号： H01F27/02 , G05F1/618 , H01F27/324 , H01F27/402 , H01F37/00 , H01F2027/406 , H02M7/44
摘要： A small reactor capable of appropriately measuring the temperature of a coil is provided. The reactor includes a coil 2 including a pair of coil elements 2a and 2b and a magnetic core including a pair of inner core portions 31 disposed in the respective coil elements 2a and 2b and outer core portions that connect the inner core portions 31 to form a closed magnetic circuit. Each of the coil elements 2a and 2b has an end face shape having a rounded corner portion 21, which is a corner portion of a rectangle that is rounded. A temperature sensor 7 is disposed in a trapezoidal space between the rounded corner portions 21 of the coil elements 2a and 2b that face each other. The temperature sensor 7 is pressed so as to contact the rounded corner portions 21 by the sensor holder portion 54 provided on an insulator, and is capable of appropriately measuring the temperature of the coil 2. When the temperature sensor 7 is disposed in a region in which the inner core portions 31 are not disposed in the respective coil elements 2a and 2b, the coil elements 2a and 2b can be positioned near each other and the size of the reactor can be reduced.
摘要翻译：提供能适当测量线圈温度的小型反应器。电抗器包括线圈2，线圈2包括一对线圈元件2a和2b以及一个磁芯，该磁芯包括设置在各个线圈元件2a和2b中的一对内芯部分31和连接内芯部分31以形成封闭磁路。每个线圈元件2a和2b具有端面形状，其具有圆角部分21，该圆角部分是圆形的矩形的角部。温度传感器7设置在彼此相对的线圈元件2a和2b的圆角部分21之间的梯形空间中。温度传感器7被按压以通过设置在绝缘体上的传感器保持器部分54与圆角部分21接触，并且能够适当地测量线圈2的温度。当温度传感器7设置在内芯部31不配置在各线圈元件2a，2b中，线圈元件2a，2b可以彼此靠近，能够减小反应器的尺寸。

13. 发明授权

US08928248B2 Step up/down converter 有权
标题翻译：升压/降压转换器
公开(公告)号：US08928248B2
公开(公告)日：2015-01-06
申请号：US13762947
申请日：2013-02-08
申请人： Panasonic Corporation
发明人： Takuya Ishii , Takeshi Azuma
IPC分类号： H05B37/02 , G05F1/618 , H02M3/158 , H05B33/08 , H02M1/00
CPC分类号： G05F1/618 , H02M3/1582 , H02M2001/0009 , H05B33/0818 , H05B37/02
摘要： Provided is a step up/down converter, in which the inductor current can be easily detected by a simple configuration in any connecting mode of the switches. This comprises a first switch, one end of which is connected to an input power source, and the other end of which is connected to one end of the inductor, a second switch, one end of which is connected to the one end of the inductor, and the other end of which is connected to a reference potential applying unit, a third switch and a fourth switch, one end of which is connected to the other end of the inductor; a capacitor circuit element, connected between the other end of the third switch and the other end of the fourth switch, and configured to generate an output voltage for applying to a load, a detecting resistor, connected between the other end of the second switch and the other end of the third switch, and configured to detect an inductor current flowing through the inductor, and a control circuit configured to perform control from the first switch to the fourth switch based on the inductor current detected by the detecting resistor.
摘要翻译：提供了一种升压/降压转换器，其中可以通过开关的任何连接模式中的简单配置容易地检测电感器电流。这包括第一开关，其一端连接到输入电源，另一端连接到电感器的一端;第二开关，其一端连接到电感器的一端并且其另一端连接到参考电位施加单元，第三开关和第四开关，其一端连接到电感器的另一端; 电容器电路元件，连接在第三开关的另一端和第四开关的另一端之间，并且被配置为产生用于施加到负载的输出电压，检测电阻器，连接在第二开关的另一端和第三开关的另一端，并且被配置为检测流过电感器的电感器电流;以及控制电路，被配置为基于由检测电阻器检测的电感电流来执行从第一开关到第四开关的控制。

14. 发明授权

US08872496B2 DC-DC converter and method of controlling DC-DC converter 有权
标题翻译： DC-DC转换器和DC-DC转换器的控制方法
公开(公告)号：US08872496B2
公开(公告)日：2014-10-28
申请号：US13716137
申请日：2012-12-15
申请人： Fujitsu Semiconductor Limited
发明人： Toru Miyamae
IPC分类号： G05F1/618 , G05F1/46
CPC分类号： G05F1/46 , H02M3/158 , H02M2001/0009 , H02M2001/0025
摘要： A DC-DC converter includes a drive circuit configured to drive a first switching element, and a second switching element coupled between a low potential power terminal of the drive circuit and a first node corresponding to the input voltage or the output voltage. A current detecting section detects a load current flowing in the output terminal. A control circuit turns on a third switching element, which is coupled between the low potential power terminal of the drive circuit and a second node having a potential lower than both the input voltage and the output voltage, in a case where a difference between the input voltage and the output voltage is lower than a threshold. The control circuit controls the second and third switching elements based on a detection result of the current detecting section in a case where the difference is equal to or greater than the threshold.
摘要翻译： DC-DC转换器包括被配置为驱动第一开关元件的驱动电路和耦合在驱动电路的低电位端子与对应于输入电压或输出电压的第一节点之间的第二开关元件。电流检测部分检测在输出端子中流动的负载电流。控制电路接通第三开关元件，该第三开关元件耦合在驱动电路的低电位端子和具有低于输入电压和输出电压两者的电位的第二节点之间，在输入端电压和输出电压低于阈值。在差异等于或大于阈值的情况下，控制电路基于电流检测部分的检测结果控制第二和第三开关元件。

15. 发明申请

US20140218001A1 CURRENT-PARKING SWITCHING REGULATOR DOWNSTREAM CONTROLLER PRE-DRIVER 有权
标题翻译：电流停车开关调节器下行控制器预驱动器
公开(公告)号：US20140218001A1
公开(公告)日：2014-08-07
申请号：US13759964
申请日：2013-02-05
申请人： NVIDIA CORPORATION
发明人： William J. Dally
IPC分类号： G05F1/618
CPC分类号： G05F1/618 , G06F1/26 , H02M1/00 , H02M3/158 , H02M3/1582 , H02M3/1584
摘要： A system and method are provided for generating non-overlapping enable signals. A peak voltage level is measured at an output of a current source that is configured to provide current to a voltage control mechanism. The non-overlapping enable signals are generated for the voltage control mechanism based on the peak voltage level. A system includes the current source, a downstream controller, and the voltage control mechanism that is coupled to the load. The current source is configured to provide current to the voltage control mechanism. The controller is configured to measure the peak voltage level at the output of the current source and generate the non-overlapping enable signals based on the peak voltage level. The non-overlapping enable signals provide a portion of the current to the load.
摘要翻译：提供了一种用于产生不重叠使能信号的系统和方法。在被配置为向电压控制机构提供电流的电流源的输出处测量峰值电压电平。基于峰值电压电平为电压控制机构产生不重叠的使能信号。系统包括电流源，下游控制器和耦合到负载的电压控制机构。电流源被配置成向电压控制机构提供电流。控制器被配置为测量电流源的输出处的峰值电压电平，并基于峰值电压电平产生不重叠的使能信号。不重叠的使能信号将电流的一部分提供给负载。

16. 发明申请

US20140210548A1 SOFT TURN-OFF FOR BOOST CONVERTERS 有权
标题翻译：软启动用于升压转换器
公开(公告)号：US20140210548A1
公开(公告)日：2014-07-31
申请号：US13752282
申请日：2013-01-28
申请人： QUALCOMM INCORPORATED
发明人： Song S. Shi , Pengfei Li , Lennart Karl-Axel Mathe
IPC分类号： G05F1/618 , H03G1/00
CPC分类号： H03G1/0005 , H02M1/088 , H02M3/158 , H02M2001/0045 , H02M2001/0058 , Y02B70/1491
摘要： Techniques for reducing ringing arising from L-C coupling in a boost converter circuit during a transition from a boost ON state to a boost OFF state. In an aspect, during an OFF state of the boost converter circuit, the size of the high-side switch coupling a boost inductor to the load is gradually increased over time. In this manner, the on-resistance of the high-side switch is decreased from a first value to a second (lower) value over time, which advantageously reduces ringing (due to high quality factor or Q) when initially entering the OFF state, while maintaining low conduction losses during the remainder of the OFF state. Further techniques are provided for implementing the high-side switch as a plurality of parallel-coupled transistors.
摘要翻译：在升压转换电路从升压导通状态转换到升压关断状态时，减少由升压转换器电路中的L-C耦合引起振铃的技术。在一方面，在升压转换器电路的OFF状态期间，将升压电感器耦合到负载的高侧开关的尺寸随时间逐渐增加。以这种方式，高边开关的导通电阻随着时间从第一值降低到第二（较低）值，这有利于当初始进入截止状态时减少振铃（由于高品质因数或Q）同时在关闭状态的剩余期间保持低导通损耗。提供了用于将高侧开关实现为多个并联耦合晶体管的进一步技术。

17. 发明申请

US20140132237A1 DYNAMIC IMPEDANCE MATCHING FOR IMPROVED TRANSIENT PERFORMANCE IN A DIRECT CURRENT-TO-DIRECT CURRENT ('DC/DC') CONVERTER FOR DELIVERING A LOAD TO AN ELECTRICAL COMPONENT 失效
公开(公告)号：US20140132237A1
公开(公告)日：2014-05-15
申请号：US13673206
申请日：2012-11-09
申请人： INTERNATIONAL BUSINESS MACHINES CORP
发明人： JAMAICA L. BARNETTE , BOBBY J. HEMINGWAY
IPC分类号： G05F1/618
CPC分类号： G05F1/46 , H02M3/1584 , H02M2001/0064 , H02M2003/1566
摘要： A direct current-to-direct current (‘DC/DC’) converter for delivering a load to an electrical component, the DC/DC converter including: a coupled inductor, wherein the coupled inductor receives a source input voltage level and a outputs an output voltage level; a transient winding; and a variable impedance switch coupled to the transient winding, the variable impedance switch configured to operate by adjusting a delivered resistance level in dependence upon a change in the load to be delivered to the electrical component by the DC/DC converter.

18. 发明授权

US08717005B2 Inherently accurate adjustable switched capacitor voltage reference with wide voltage range 有权
标题翻译：具有宽电压范围的固有精确的可调开关电容器电压基准
公开(公告)号：US08717005B2
公开(公告)日：2014-05-06
申请号：US13540380
申请日：2012-07-02
申请人： Gregory L. Schaffer
发明人： Gregory L. Schaffer
IPC分类号： G05F1/59 , G05F1/618
CPC分类号： G05F3/30
摘要： A switched capacitor voltage reference including a single bias current source, three capacitors, diode devices, an amplifier and switching circuits for developing a temperature independent reference voltage. A single current source avoids having to match multiple current sources. A first capacitor and at least one diode device set a voltage having a negative temperature coefficient. A second capacitor and each of the diode devices set a voltage having a positive temperature coefficient. A third capacitor allows adjustable gain to enable a wide voltage range including a low voltage such as less than one volt. The switching circuits switch between multiple modes for developing and then combining the different temperature coefficient voltages. The topology allows a simple amplifier to be used. The topology is inherently accurate and does not require device trimming. An averaging method may be used to compensate for any mismatch between the diode devices.
摘要翻译：开关电容器电压基准包括单个偏置电流源，三个电容器，二极管器件，用于开发独立于温度的参考电压的放大器和开关电路。单个电流源避免了匹配多个电流源。第一电容器和至少一个二极管器件设置具有负温度系数的电压。第二电容器和每个二极管器件设置具有正温度系数的电压。第三个电容器允许可调节的增益使得能够实现包括低电压（例如小于1伏）的宽电压范围。开关电路在多种模式之间切换，用于开发，然后组合不同的温度系数电压。该拓扑结构允许使用简单的放大器。拓扑本质上是准确的，不需要设备修整。可以使用平均方法来补偿二极管器件之间的任何不匹配。

19. 发明申请

US20140070786A1 Power Converter Including Integrated Driver Providing Overcurrent Protection 有权
标题翻译：包括提供过流保护的集成驱动器的电源转换器
公开(公告)号：US20140070786A1
公开(公告)日：2014-03-13
申请号：US13958320
申请日：2013-08-02
申请人： International Rectifier Corporation
发明人： Alberto Guerra , Sergio Morini , Marco Giandalia
IPC分类号： G05F1/618
CPC分类号： G05F1/618 , H03K17/0822 , H03K17/567 , H03K2017/6875
摘要： In one implementation, a power converter includes an output stage integrated circuit (IC) in a group III-V die including a depletion mode group III-V transistor, and a driver IC in a group IV die. The driver IC is configured to drive the output stage IC. In addition, a group IV control switch in the group IV die is cascoded with the depletion mode group III-V transistor. The power converter further includes an overcurrent protection circuit for the depletion mode group III-V transistor, the overcurrent protection circuit monolithically integrated in the group IV die.
摘要翻译：在一个实施方案中，功率转换器包括在包括耗尽型组III-V晶体管的III-V族晶片管中的输出级集成电路（IC）和组IV晶片管中的驱动器IC。驱动器IC被配置为驱动输出级IC。另外，IV族管芯中的IV族控制开关与耗尽型III-V族晶体管共同成形。功率转换器还包括用于耗尽型组III-V晶体管的过电流保护电路，过电流保护电路单片集成在组IV芯片中。

20. 发明授权

US08531167B2 Circuit 失效
标题翻译：电路
公开(公告)号：US08531167B2
公开(公告)日：2013-09-10
申请号：US13343824
申请日：2012-01-05
申请人： Daisuke Yamaguchi , Yuki Kamata , Eiji Hori , Katsuyuki Omi
发明人： Daisuke Yamaguchi , Yuki Kamata , Eiji Hori , Katsuyuki Omi
IPC分类号： G05F1/575 , G05F1/618
CPC分类号： H02M3/1588 , Y02B70/1466
摘要： A DC-DC converter has an error amplifier that amplifies a potential difference between a first voltage based on an output voltage at the output terminal and a reference voltage, and outputs a resultant error amplified signal; a differential detecting circuit that senses an inclination of a temporal change of the output voltage by differentiating the first voltage, outputs a control signal according to a result of the sensing; and a PWM generating circuit that compares a synthetic signal obtained by conducting computation on the amplified error signal and the control signal with a periodically changing comparison signal, and outputs a PWM signal having a duty ratio controlled according to a result of the comparison.
摘要翻译： DC-DC转换器具有误差放大器，其放大基于输出端子的输出电压的第一电压与基准电压之间的电位差，并输出合成误差放大信号; 差分检测电路，通过对第一电压进行微分来检测输出电压的时间变化的倾斜度，根据检测结果输出控制信号; 以及PWM生成电路，其通过对经放大的误差信号进行计算而获得的合成信号与控制信号与周期性变化的比较信号进行比较，并输出根据比较结果控制的占空比的PWM信号。

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