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1. 发明申请

US20180234011A1 CHARGE PUMP, SWITCH DRIVER DEVICE, LIGHTING DEVICE, AND VEHICLE 审中-公开
公开(公告)号：US20180234011A1
公开(公告)日：2018-08-16
申请号：US15745272
申请日：2016-06-15
申请人： Rohm Co., Ltd.
发明人： Yasunori MURAMATSU , Tetsuo Tateishi
IPC分类号： H02M3/07 , G05F1/10 , F21S41/12
CPC分类号： H02M3/073 , B60Q1/382 , B60Q1/46 , B60Q11/007 , F21S41/12 , F21Y2115/10 , G05F1/10 , H02M3/07 , H02M2001/0041
摘要： Provided is a charge pump including a flying capacitor, an output capacitor, a switch group arranged to switch connection states of the capacitors so as to generate an output voltage from an input voltage, and a feedback control unit arranged to adjust an interterminal voltage of the flying capacitor to a predetermined target value when charging the same. On the basis of a first node voltage applied to a first terminal of the flying capacitor, the feedback control unit adjusts a second node voltage at a second terminal of the flying capacitor. The feedback control unit includes a voltage detection unit arranged to detect the interterminal voltage of the flying capacitor, and a voltage adjustment unit arranged to adjust the second node voltage according to a result of detection by the voltage detection unit.

2. 发明授权

US09985016B2 Charge pump circuit for providing multiplied voltage 有权
公开(公告)号：US09985016B2
公开(公告)日：2018-05-29
申请号：US15444355
申请日：2017-02-28
申请人： NXP USA, INC.
发明人： Jon S. Choy , Michael G. Neaves
IPC分类号： H03L7/06 , H01L27/02 , H01L27/12
CPC分类号： H01L27/0222 , H01L21/823807 , H01L21/823878 , H01L21/823892 , H01L27/092 , H01L27/1203 , H01L27/1207 , H01L29/78 , H02M3/07 , H02M2001/0041 , H02M2003/071 , H02M2003/077
摘要： A charge pump comprises one or more pump stages for providing a negative boosted output voltage. Each of the one or more pump stages comprises a P-channel transistor formed in an isolated P-well and an N-channel transistor coupled in series with the P-channel transistor. Forming the P-channel transistor in the isolated P-well essentially eliminates a raised threshold voltage due to body effect.

3. 发明申请

US20180123457A1 SWITCHING POWER SUPPLY WITH SHORT CIRCUIT DETECTION 有权
公开(公告)号：US20180123457A1
公开(公告)日：2018-05-03
申请号：US15696679
申请日：2017-09-06
申请人： Fuji Electric Co., Ltd.
发明人： Yukihiro YAGUCHI
IPC分类号： H02M3/158 , H02M1/42
CPC分类号： H02M3/158 , G05F1/10 , H02M1/32 , H02M1/4225 , H02M2001/0032 , H02M2001/0038 , H02M2001/0041 , H03K2217/0036
摘要： A switching power supply includes: a switching device connected between a power supply input terminal and a ground terminal via an inductance element; an output circuit that generates a prescribed output voltage by rectifying and smoothing current obtained from the inductance element as the switching device is switched ON and OFF; an output voltage control circuit that controls an ON time of the switching device on the basis of a feedback voltage obtained through the output voltage of the output circuit; and a short-circuit detection circuit that outputs a short-circuit detection signal by detecting short-circuits in the switching device on the basis of a voltage applied to a control terminal of the switching device when the switching device is ON, the short-circuit detection signal being used to control operation of the output voltage control circuit so as to gradually reduce the ON time of the switching device.

4. 发明授权

US09847723B2 Power conversion device 有权
公开(公告)号：US09847723B2
公开(公告)日：2017-12-19
申请号：US15584041
申请日：2017-05-02
申请人： OMRON Corporation
发明人： Masayuki Suetomi , Katsuji Mitsui , Isao Fujihata , Kesanobu Kuwabara , Yoshihiko Yamaguchi , Makoto Ohashi
IPC分类号： H02M3/315 , H02M3/24 , H02M3/335 , H02M1/00
CPC分类号： H02M3/24 , H02M1/00 , H02M3/33584 , H02M2001/0009 , H02M2001/0025 , H02M2001/0041
摘要： A power conversion device, which includes an insulation type full bridge converter and can switch a power transmission direction at a high speed, is provided. A DC/DC converter (10) constitutes a power conversion device, which operates as a first type converter that converts a voltage within a first range applied to a first input/output terminal pair into a voltage within a second range and outputs the voltage from a second input/output terminal pair or a second type converter that converts a voltage within the second range applied to the second input/output terminal pair into a voltage within the first range and outputs the voltage from the first input/output terminal pair, as a device that performs a predetermined state transition of the DC/DC converter (10) after waiting for a load current value of a primary or secondary side of a transformer (TR) becomes a value within a predetermined current value range.

5. 发明申请

US20170324335A1 POWER CONVERSION DEVICE 有权
公开(公告)号：US20170324335A1
公开(公告)日：2017-11-09
申请号：US15584041
申请日：2017-05-02
申请人： OMRON Corporation
发明人： Masayuki SUETOMI , Katsuji MITSUI , Isao FUJIHATA , Kesanobu KUWABARA , Yoshihiko YAMAGUCHI , Makoto OHASHI
IPC分类号： H02M3/24 , H02M1/00
CPC分类号： H02M3/24 , H02M1/00 , H02M3/33584 , H02M2001/0009 , H02M2001/0025 , H02M2001/0041
摘要： A power conversion device, which includes an insulation type full bridge converter and can switch a power transmission direction at a high speed, is provided. A DC/DC converter (10) constitutes a power conversion device, which operates as a first type converter that converts a voltage within a first range applied to a first input/output terminal pair into a voltage within a second range and outputs the voltage from a second input/output terminal pair or a second type converter that converts a voltage within the second range applied to the second input/output terminal pair into a voltage within the first range and outputs the voltage from the first input/output terminal pair, as a device that performs a predetermined state transition of the DC/DC converter (10) after waiting for a load current value of a primary or secondary side of a transformer (TR) becomes a value within a predetermined current value range.

6. 发明申请

US20160172967A1 SWITCHING POWER SUPPLY CIRCUIT 有权
标题翻译：切换电源电路
公开(公告)号：US20160172967A1
公开(公告)日：2016-06-16
申请号：US14926239
申请日：2015-10-29
申请人： KABUSHIKI KAISHA TOSHIBA
发明人： Taichi OGAWA , Takeshi Ueno , Tetsuro Itakura , Takayuki Miyazaki
IPC分类号： H02M3/04
CPC分类号： H02M3/04 , H02M3/156 , H02M2001/0032 , H02M2001/0041 , H03K17/082 , H03K17/30 , H03K2217/0036 , Y02B70/16
摘要： According to an embodiment, a switching power supply circuit includes a comparison circuit and an operation control circuit. The comparison circuit operates intermittently in response to an operation control signal. The comparison circuit compares a feedback voltage based on the output voltage with a reference voltage to generate a comparison result signal representing a result of comparison. The operation control circuit generates the operation control signal based on the clock signal and the comparison result signal. The operation control circuit generates an operation control signal synchronous with the clock signal, if the comparison result signal is at the first level.
摘要翻译：根据实施例，开关电源电路包括比较电路和运算控制电路。比较电路响应于操作控制信号间歇地工作。比较电路将基于输出电压的反馈电压与参考电压进行比较，以产生表示比较结果的比较结果信号。运算控制电路基于时钟信号和比较结果信号生成运算控制信号。如果比较结果信号处于第一级，则操作控制电路产生与时钟信号同步的操作控制信号。

7. 发明授权

US09362927B2 Advanced clock synchronization circuit 有权
标题翻译：高级时钟同步电路
公开(公告)号：US09362927B2
公开(公告)日：2016-06-07
申请号：US14043674
申请日：2013-10-01
申请人： Steven Patrick Laur , Zbigniew Jan Lata , Jinyu Yang
发明人： Steven Patrick Laur , Zbigniew Jan Lata , Jinyu Yang
IPC分类号： H03L7/10 , H02M3/335 , H03K5/135 , H02M1/00
CPC分类号： H03L7/105 , H02M3/33561 , H02M2001/0041 , H03K5/135 , Y10T307/707
摘要： A circuit and method for switching between a system's internal clock and an external synchronization clock when a stable external clock has been detected, and for switching back to operating the system using said internal clock when a predetermined number of sequential external clock pulses exceed a predetermined switching period dropout threshold or are otherwise missing.
摘要翻译：一种用于当已经检测到稳定的外部时钟时在系统的内部时钟和外部同步时钟之间切换的电路和方法，并且当预定数量的顺序的外部时钟脉冲超过预定的切换时，切换回使用所述内部时钟来操作系统期间退出阈值或以其他方式丢失。

8. 发明授权

US09312765B2 Switch mode power supply including binary pulse skipping 有权
标题翻译：开关电源包括二进制脉冲跳跃
公开(公告)号：US09312765B2
公开(公告)日：2016-04-12
申请号：US14179218
申请日：2014-02-12
申请人： QUALCOMM Incorporated
发明人： Gregory Walsh , Zoran Janosevic , Mathieu Jaloux , Hardik M Patel
IPC分类号： H02M3/157 , H02M1/088 , H02M1/44 , H02M3/156 , H02M1/00
CPC分类号： H02M3/157 , H02M1/088 , H02M1/44 , H02M3/156 , H02M2001/0032 , H02M2001/0041 , Y02B70/16
摘要： In one embodiment, a circuit comprises a sense circuit configured to sense an increase in an output voltage of a switching regulator under a light load condition. A pulse generating circuit generates a control signal to switch on and off a voltage input to the switching regulator. The pulse generating circuit reduces in a binary manner a switching frequency of the control signal under the light load condition as the sensed output voltage increases. As the output voltage rises, a clock signal is divided by two to remove every second pulse and applied to the pulse generating circuit. Further increases in the output voltage cause divisions of the clock frequency by four to remove 3 of 4 pulses so that only every fourth pulse remains. With output voltage increases, the frequency is divided by eight to remove 7 of 8 pulses so that every eighth pulse remains, and so forth.
摘要翻译：在一个实施例中，电路包括感测电路，其被配置为感测在轻负载条件下开关调节器的输出电压的增加。脉冲发生电路产生控制信号以接通和断开输入到开关调节器的电压。脉冲发生电路在感测的输出电压增加时，以轻负载状态以二进制方式降低控制信号的开关频率。当输出电压上升时，将时钟信号除以2以消除每秒脉冲并施加到脉冲发生电路。输出电压的进一步增加会导致时钟频率分割四分之一，以消除4个脉冲中的3个，从而只剩下每四个脉冲。随着输出电压的增加，频率被除以8以消除8个脉冲中的7个，使得每八个脉冲保持等等。

9. 发明申请

US20150312069A1 ELECTRICAL APPARATUS FOR TRANSMITTING ELECTRICAL ENERGY IN A CLOCKED MANNER 审中-公开
标题翻译：用于在时钟中传输电能的电气设备
公开(公告)号：US20150312069A1
公开(公告)日：2015-10-29
申请号：US14441523
申请日：2013-11-04
申请人： ELMOS SEMICONDUCTOR AG
发明人： Andre Sudhaus , Petrus Johannes Devilee
IPC分类号： H04L25/49
CPC分类号： H04L25/4902 , H02M3/156 , H02M2001/0035 , H02M2001/0041 , Y02B70/16
摘要： The electrical apparatus (10) for transmitting electrical energy in a clocked manner or with clocked transmission of electrical energy is provided with an input (32) and also an output (34) and a docked switch (26) which is connected between the input (32) and the output (34). The apparatus (10) further has a drive unit (28) for docking the switch (26) by pulse-width modulation with a fundamental frequency at which drive pulses (38) follow one another. The pulse-width modulation can be operated by periodic clocking during in each case only one drive pulse group comprising a variable, predefinable number of successive drive pulses (38) or drive intervals and therefore at a subharmonic of the fundamental frequency, wherein the minimum permissible minimum number and the maximum permissible maximum number of drive pulses (38) or intervals in the drive pulse group are selected to the exclusion of subharmonics which lie within predefinable subfrequency bands which are below the fundamental frequency.
摘要翻译：用于以时钟方式或时钟传输电能传输电能的电气设备（10）具有输入端（32）以及连接在输入端（32）之间的输出端（34）和对接开关（26） 32）和输出（34）。该设备（10）还具有一个驱动单元（28），用于通过脉冲宽度调制将开关（26）对准驱动脉冲（38）彼此相继的基本频率。脉冲宽度调制可以通过周期性时钟进行操作，在每种情况下，只有一个驱动脉冲组包括可变的，可预定数量的连续驱动脉冲（38）或驱动间隔，因此在基频的次谐波处，其中最小允许选择驱动脉冲组中的最小数量和最大允许最大驱动脉冲数（38）或间隔，以排除位于低于基频的可预定义子频带内的次谐波。

10. 发明授权

US08570014B2 Advanced clock synchronization circuit for switch mode power supplies 有权
标题翻译：高级时钟同步电路，用于开关电源
公开(公告)号：US08570014B2
公开(公告)日：2013-10-29
申请号：US13198179
申请日：2011-08-04
申请人： Steven Patrick Laur , Zbigniew Jan Lata , Jinyu Yang
发明人： Steven Patrick Laur , Zbigniew Jan Lata , Jinyu Yang
IPC分类号： G05F1/00 , G05F3/02 , G06F1/08 , H03K3/00 , H02M1/10
CPC分类号： H03L7/105 , H02M3/33561 , H02M2001/0041 , H03K5/135 , Y10T307/707
摘要： In a switch mode power supply, a circuit and method for switching between an internal clock and an external synchronization clock when a stable external clock has been detected, and for switching back to operating the power supply using said internal clock when a predetermined number of sequential external clock pulses exceed a predetermined switching period dropout threshold or are otherwise missing. In one embodiment, a power system comprises a plurality of power supplies connected in parallel to a common load and where each power supply is synchronized to the external clock when a stable external clock has been detected by each.
摘要翻译：在开关模式电源中，当检测到稳定的外部时钟时，用于在内部时钟和外部同步时钟之间切换的电路和方法，以及当预定数量的顺序时，切换回使用所述内部时钟来操作电源外部时钟脉冲超过预定的开关周期丢失阈值，否则丢失。在一个实施例中，电力系统包括与公共负载并联连接的多个电源，并且当每个电源均被每个电源检测到稳定的外部时钟时，每个电源与外部时钟同步。

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