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1. 发明申请

US20190097542A1 HALF BRIDGE RESONANT CONVERTERS, CIRCUITS USING THEM, AND CORRESPONDING CONTROL METHODS 审中-公开
公开(公告)号：US20190097542A1
公开(公告)日：2019-03-28
申请号：US16087014
申请日：2017-04-11
申请人： PHILIPS LIGHTING HOLDING B.V.
发明人： JOHANNES HUBERTUS GERARDUS OP HET VELD , DAVE LLEWELLYN JOHN , REINHOLD ELFERICH , WILLIAM PETER MECHTIDIS MARIE JANS
IPC分类号： H02M3/335 , H02M3/07 , H02M1/08 , H05B33/08 , H02M7/537
CPC分类号： H02M3/33569 , H02M1/08 , H02M3/07 , H02M3/335 , H02M3/3378 , H02M7/537 , H02M7/53832 , H02M2007/4815 , H05B33/0809 , H05B33/0815 , Y02B20/348 , Y02B70/1433 , Y02B70/1441
摘要： A half bridge resonant converter comprises a half bridge inverter having a high side switch and a low side switch with an output defined from a node between the high side switch and the low side switch. The output connects to a resonant circuit. There are separate control circuits for generating the gate drive signals for controlling the switching of the high side switch and low side switch, in dependence on an electrical feedback parameter, each with different reference voltage supplies.

2. 发明授权

US10079535B2 Voltage control apparatus 有权
公开(公告)号：US10079535B2
公开(公告)日：2018-09-18
申请号：US15614933
申请日：2017-06-06
申请人： FUJITSU LIMITED
发明人： Shogo Hiyama , Kentarou Yuasa
IPC分类号： H02M1/08 , H02M3/337 , H02M3/158 , H02M1/00
CPC分类号： H02M1/08 , H02M1/36 , H02M3/1582 , H02M3/1584 , H02M3/3378 , H02M2001/0022 , H02M2001/0067 , H02M2001/007 , H02M2003/1586
摘要： A voltage control apparatus includes a boost converter configured to convert an input voltage to a voltage equal to or higher than a first voltage in an operative state and directly output the input voltage in an inoperative state, a buck-boost converter coupled with the boost converter in parallel and configured to convert the input voltage to a second voltage lower than the first voltage, a memory, and a processor coupled to the memory and configured to keep the buck-boost converter in the operative state, set the boost converter to the inoperative state when the input voltage is equal to or higher than the first voltage, and change the boost converter to the operative state when the input voltage is lower than the first voltage.

3. 发明授权

US10050471B2 Inductive rotary joint with multimode inverter 有权
公开(公告)号：US10050471B2
公开(公告)日：2018-08-14
申请号：US14972562
申请日：2015-12-17
申请人： SCHLEIFRING GMBH
发明人： Nils Krumme , Ulrich Herrmann
IPC分类号： A61B6/03 , H01F38/18 , H02J5/00 , H05G1/10 , H02J50/10 , H02J50/12 , H02M3/335 , H02M3/337 , H02M1/00
CPC分类号： H02J50/10 , A61B6/03 , H01F38/18 , H02J5/005 , H02J50/12 , H02M3/335 , H02M3/3378 , H02M2001/0058 , H05G1/10 , Y02B70/1491
摘要： An inductive power transfer circuit or inductive rotary joint has an inductive rotating coupler with a primary side and a primary winding rotatably arranged against a secondary side and a secondary winding. The secondary side is connected via a rectifier to a load. The stray inductance of the coupler together with a resonance capacitor a series resonance circuit having a series resonance frequency. An inverter in a full bridge circuit is provided for converting a DC input voltage into an AC voltage. The inverter is operable in a full bridge mode to deliver a high power level and in a half bridge mode to deliver a low power level. This results in a broad dynamic range, soft power on and improved safety, as switching between the modes may be controlled by a simple hardware.

4. 发明授权

US09941806B2 Modulation method for the boost converter operating mode of a push-pull converter 有权
公开(公告)号：US09941806B2
公开(公告)日：2018-04-10
申请号：US15126917
申请日：2015-01-29
申请人： Robert Bosch GmbH
发明人： David Tastekin
IPC分类号： H02M3/335 , H02M3/337 , H02M1/08 , H02M1/00
CPC分类号： H02M3/3378 , H02M1/08 , H02M3/33584 , H02M2001/0009
摘要： The invention relates to a method for modulating the boost converter operating mode of a push-pull converter having a low-voltage-side circuit, having a first low-voltage-side switching device and a second low-voltage-side switching device; having a transformer having a high-voltage-side winding; and having a high-voltage-side circuit, which is configured as a full-bridge rectifier, having a first and a second rectification element which form a first half-bridge and a third and a fourth rectification element which form a second half-bridge; wherein the method comprises the steps of closing the first low-voltage-side switching device while simultaneously short-circuiting the high-voltage-side winding via the first or the fourth rectification element during a first time segment; opening the rectification element used for short-circuiting the high-voltage-side winding during a second time segment; opening the first low-voltage-side switching device and closing the second low-voltage-side switching device while simultaneously short-circuiting the high-voltage-side winding via the third or the fourth rectification element in the second half-bridge during a third time segment; and opening the rectification element used for short-circuiting the high-voltage-side winding during a fourth time segment.

5. 发明授权

US09774263B1 Power converter with extended hold-up time 有权
公开(公告)号：US09774263B1
公开(公告)日：2017-09-26
申请号：US15229151
申请日：2016-08-05
申请人： SCHNEIDER ELECTRIC IT CORPORATION
发明人： Hui-Jung Chen , Damir Klikic , Kuo-Liang Lee , Hsuang-Chang Chiang
IPC分类号： H02M3/337 , H02M3/335 , H02M1/08 , H02M1/00
CPC分类号： H02M3/33507 , H02J7/345 , H02J9/06 , H02M1/08 , H02M3/33569 , H02M3/337 , H02M3/3372 , H02M3/3376 , H02M3/3378 , H02M7/217 , H02M2001/0009 , H02M2001/0096 , H02M2001/325
摘要： According to one aspect, embodiments herein provide an AC-DC converter comprising a rectifier, a capacitor, a DC bus coupled to the capacitor, a plurality of first switches coupled to the DC bus, a plurality of second switches coupled between the rectifier and the first switches, a transformer having a primary winding and a secondary winding, the primary winding coupled to the plurality of first switches, the plurality of second switches, and the rectifier, and the secondary winding coupled to an output, and a controller configured, in response to a determination that the input AC power is acceptable, to operate the plurality of second switches and the plurality of first switches such that output DC voltage is maintained at a desired output DC voltage level, and operate the plurality of first switches such that a DC bus voltage on the DC bus is maintained at a desired DC bus voltage level.

6. 发明授权

US09744856B2 Power conversion apparatus 有权
公开(公告)号：US09744856B2
公开(公告)日：2017-08-29
申请号：US14677362
申请日：2015-04-02
申请人： Toyota Jidosha Kabushiki Kaisha
发明人： Kenichiro Nagashita
IPC分类号： H02J1/10 , B60L1/00 , B60L11/18 , H02M1/10 , H02M3/335 , H02M3/337 , H02M1/00
CPC分类号： B60L1/00 , B60L11/1812 , H02M1/10 , H02M3/33584 , H02M3/3378 , H02M2001/0003 , Y02T10/7005 , Y02T10/7072 , Y02T10/7216 , Y02T10/7241 , Y02T90/127 , Y02T90/14
摘要： A power conversion apparatus is configured to supply a power to an auxiliary device provided in a vehicle, and the power conversion apparatus includes: a primary side circuit including a primary side port; a secondary side circuit including a plurality of secondary side ports and magnetically coupled with the primary side circuit via a transformer; a control unit configured to control a transmitted power that is transmitted between the primary side circuit and the secondary side circuit by changing a phase difference between a switching of the primary side circuit and a switching of the secondary side circuit; an inverter connected to a first secondary side port and supplying the power to the auxiliary device via the primary side port; and a charger connected to a second secondary side port and supplying the power to the auxiliary device via the primary side port.

7. 发明申请

US20170093288A1 MODULATION METHOD FOR THE BOOST CONVERTER OPERATING MODE OF A PUSH-PULL CONVERTER 有权
公开(公告)号：US20170093288A1
公开(公告)日：2017-03-30
申请号：US15126917
申请日：2015-01-29
申请人： Robert Bosch GmbH
发明人： David Tastekin
IPC分类号： H02M3/337 , H02M1/08
CPC分类号： H02M3/3378 , H02M1/08 , H02M3/33584 , H02M2001/0009
摘要： The invention relates to a method for modulating the boost converter operating mode of a push-pull converter having a low-voltage-side circuit, having a first low-voltage-side switching device and a second low-voltage-side switching device; having a transformer having a high-voltage-side winding; and having a high-voltage-side circuit, which is configured as a full-bridge rectifier, having a first and a second rectification element which form a first half-bridge and a third and a fourth rectification element which form a second half-bridge; wherein the method comprises the steps of closing the first low-voltage-side switching device whilst simultaneously short-circuiting the high-voltage-side winding via the first or the fourth rectification element during a first time segment; opening the rectification element used for short-circuiting the high-voltage-side winding during a second time segment; opening the first low-voltage-side switching device and closing the second low-voltage-side switching device whilst simultaneously short-circuiting the high-voltage-side winding via the third or the fourth rectification element in the second half-bridge during a third time segment; and opening the rectification element used for short-circuiting the high-voltage-side winding during a fourth time segment.

8. 发明授权

US09520772B2 Multi-level voltage regulator system 有权
标题翻译：多电平稳压系统
公开(公告)号：US09520772B2
公开(公告)日：2016-12-13
申请号：US13968955
申请日：2013-08-16
申请人： TDK-Lambda Corporation
发明人： Jin He , Jeffrey John Boylan
IPC分类号： H02M3/04 , G05F1/10 , H02M3/337 , H02M3/335 , H02M1/00
CPC分类号： H02M3/04 , G05F1/10 , H02M3/33592 , H02M3/3378 , H02M2001/0022 , H02M2001/008 , Y02B70/1475
摘要： A multi-level voltage regulator system/method providing discrete regulation of a DC-DC intermediate bus converter (IBC) output voltage (Vout) is disclosed. The disclosed system/method allows IBC Vout to be regulated in discrete steps during periods where IBC input voltage (Vin) falls below nominal operating values. Rather than shutting down or degrading IBC Vout in an unpredictable non-linear fashion based on IBC input/loading, IBC Vout is regulated in fixed discrete steps, allowing IBC-connected point-of-load (POL) converters to obtain stable power input that is well-defined over IBC Vin. IBC operating parameters may define multi-dimensional operational state spaces of IBC Vout regulation that ensure optimum power flow to attached POLs while maintaining operational stability within the IBC regulator. Instabilities in IBC/POL performance across variations in IBC Vin, load transients, POL loading, and environmental variables may be prevented using Vin voltage step hysteresis.
摘要翻译：公开了一种提供DC-DC中间总线转换器（IBC）输出电压（Vout）的离散调节的多电平稳压器系统/方法。所公开的系统/方法允许IBC Vout在IBC输入电压（Vin）低于额定工作值的时段内以离散步骤进行调节。 IBC Vout不是以基于IBC输入/负载的不可预测的非线性方式关闭或降级IBC Vout，而是以固定的离散步骤进行调节，允许IBC连接的负载点（POL）转换器获得稳定的功率输入，对IBC Vin的定义非常明确。 IBC操作参数可以定义IBC Vout调节的多维操作状态空间，其确保在连接的POL处获得最佳功率流，同时保持IBC调节器内的操作稳定性。使用Vin电压阶跃滞后可以防止IBC Vin，IB负载变化，负载瞬变，POL负载和环境变量之间IBC / POL性能的不稳定性。

9. 发明授权

US09467059B2 Activation apparatus and method for activating a direct voltage converter 有权
标题翻译：用于激活直流电压转换器的激活装置和方法
公开(公告)号：US09467059B2
公开(公告)日：2016-10-11
申请号：US14348505
申请日：2012-08-02
申请人： Eric Hueckel , Stefan Koch , Florian Lieblang , Stephan Binhack , Tobias Pristl , Michael Zeller , Stephan Mueller , Jian Tian , Ralf Bochat , Ralf-Peter Bergmann
发明人： Eric Hueckel , Stefan Koch , Florian Lieblang , Stephan Binhack , Tobias Pristl , Michael Zeller , Stephan Mueller , Jian Tian , Ralf Bochat , Ralf-Peter Bergmann
IPC分类号： H02M3/335 , H02M3/337 , H02M1/36 , H02M1/00
CPC分类号： H02M3/3378 , H02M1/36 , H02M3/33592 , H02M2001/0025 , Y02B70/1475
摘要： The invention relates to an activation apparatus (20) for a galvanically decoupled direct voltage converter having a synchronous rectifier, comprising a signal generating device (22), which is designed to generate control signals (22c, 22d) for switch devices of the synchronous rectifier and a reference current signal (22b), a first comparator device (23), which is coupled to the signal generating device (22), and which is designed to detect the secondary-side output current (Jo) of the synchronous rectifier, compare it to the reference current signal (22b) and generate a current control signal in dependence on the comparison, and a pulse width modulation device (25), which is coupled to the signal generating device (22) and the first comparator device (23) and which is designed to generate pulse width modulated activation signals (25a) for the switch devices of the synchronous rectifier on the basis of the control signals (22c, 22d) and the current control signal, wherein the signal generating device (22) is furthermore designed to reduce the reference current signal (22b) within a first predetermined timespan to a predetermined reference current threshold.
摘要翻译：本发明涉及一种用于具有同步整流器的电流去耦直流电压转换器的激活装置（20），其包括信号发生装置（22），其被设计成产生用于同步整流器的开关装置的控制信号（22c，22d）和参考电流信号（22b），耦合到所述信号发生装置（22）并被设计成检测所述同步整流器的次级侧输出电流（Jo）的第一比较器装置（23）进行比较与参考电流信号（22b）相关并根据比较产生电流控制信号，以及耦合到信号产生装置（22）和第一比较器装置（23）的脉宽调制装置（25）并且其被设计成基于控制信号（22c，22d）和电流控制信号来产生用于同步整流器的开关装置的脉冲宽度调制的激活信号（25a），其中信号g 激励装置（22）还被设计为将第一预定时间段内的参考电流信号（22b）减小到预定的参考电流阈值。

10. 发明申请

US20160219757A1 COOLING STRUCTURE 有权
标题翻译：冷却结构
公开(公告)号：US20160219757A1
公开(公告)日：2016-07-28
申请号：US14532919
申请日：2014-11-04
申请人： GE Aviation Systems LLC
发明人： Michael Pietrantonio , Michael Carl Ludwig , Mohamed Aly Elsayed
IPC分类号： H05K7/20 , H02M3/335
CPC分类号： H05K7/20927 , H02M3/3378
摘要： A cooling structure for a heat-producing power magnetics device having at least two faces, includes a first cold plate having a first coolant passage and conductively coupled with at least the first face of the magnetics device and wherein at least a portion of heat generated by the power magnetics device is removed from the device by way of thermal conduction to the first coolant passage, and a coolant reservoir fluidly coupled with the first and second coolant passages.
摘要翻译：一种用于具有至少两个表面的发热功率磁性装置的冷却结构，包括具有第一冷却剂通道的第一冷板，并且至少与所述磁性装置的第一面导电耦合，并且其中至少一部分热量由通过热传导到第一冷却剂通道以及与第一和第二冷却剂通道流体耦合的冷却剂储存器将功率磁性装置从装置移除。

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