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1. 发明专利

JP2014017971A Dc-dc converter 有权
标题翻译： DC-DC转换器
公开(公告)号：JP2014017971A
公开(公告)日：2014-01-30
申请号：JP2012153746
申请日：2012-07-09
申请人： Denso Corp , 株式会社デンソー , Nippon Soken Inc , 株式会社日本自動車部品総合研究所
发明人： YAMAZAKI SHOTARO , ISHIKAWA MASAMICHI , HAYASHI YUJI
IPC分类号： H02M3/28
摘要： PROBLEM TO BE SOLVED: To provide a DC-DC converter capable of suppressing electromagnetic noise radiated from a rectifier circuit section over a wide frequency range.SOLUTION: A DC-DC converter 1 includes a transformer 2 having a primary coil and a secondary coil, a rectifier circuit section 3 connected to the secondary coil, and a base plate 4 on which the transformer 2 and the rectifier circuit section 3 are mounted. The DC-DC converter 1 further includes a magnetic material 5 disposed so as to cover the rectifier circuit section 3 with the base plate 4 from the opposite side of the base plate 4, and a pedestal 6 fixed to the base plate 4 and supporting the magnetic material 5 from the rectifier circuit section 3 side. The pedestal 6 is composed of a conductor and has an annular shape when viewed from the stacking direction of the base plate 4, the rectifier circuit section 3, and the magnetic material 5.
摘要翻译：要解决的问题：提供能够抑制在宽频率范围内从整流电路部分辐射的电磁噪声的DC-DC转换器。解决方案：DC-DC转换器1包括具有初级线圈和次级线圈的变压器2，连接到次级线圈的整流电路部分3和安装有变压器2和整流电路部分3的基板4。 DC-DC转换器1还包括磁性材料5，该磁性材料5被设置成覆盖整流电路部分3，基板4从基板4的相对侧，以及基座6，固定到基板4并支撑来自整流电路部3侧的磁性材料5。基座6由导体构成，从基板4的堆叠方向，整流电路部3和磁性体5观察时呈环状。

2. 发明专利

JP2013090520A Dc/dc converter 审中-公开
标题翻译： DC / DC转换器
公开(公告)号：JP2013090520A
公开(公告)日：2013-05-13
申请号：JP2011231462
申请日：2011-10-21
申请人： Nippon Soken Inc , 株式会社日本自動車部品総合研究所 , Denso Corp , 株式会社デンソー
发明人： SHIGEOKA KEIJI , NAKAMURA KIMIKAZU , HAYASHI YUJI
IPC分类号： H02M3/155 , H02M3/28
摘要： PROBLEM TO BE SOLVED: To provide a DC/DC converter CV of digital control system capable of suitably suppressing ripples of output voltage thereof.SOLUTION: In an AD conversion unit B1, output voltage from a DC/DC converter CV is sampled, every period thereof, in a time interval obtained by dividing one period of the output voltage by N-th power (N=1) of 2, and the output voltage thus sampled is acquired as digital data. In an average value calculation unit B2, average value VA of the output voltage Vout, as the digital data thus acquired, is calculated by digital processing. In a feedback control unit B3, a threshold Cα for feedback controlling the average value VA to a target voltage VREF is calculated, and an operation signal SW (PWM signal) for a switching element 16 is generated using the threshold Cα thus calculated as an input.
摘要翻译：要解决的问题：提供能够适当地抑制其输出电压的波动的数字控制系统的DC / DC转换器CV。解决方案：在AD转换单元B1中，在通过将输出电压的一个周期除以N次幂（N = 1）而获得的时间间隔中，对每个周期对来自DC / DC转换器CV的输出电压进行采样）为2，并且作为数字数据获取如此采样的输出电压。在平均值计算单元B2中，通过数字处理来计算作为如此获取的数字数据的输出电压Vout的平均值VA。在反馈控制单元B3中，计算用于反馈控制平均值VA至目标电压VREF的阈值Cα，并且使用这样计算的阈值Cα作为输入产生用于开关元件16的操作信号SW（PWM信号）。版权所有（C）2013，JPO＆INPIT

3. 发明专利

JP2013062916A Power conversion device 有权
标题翻译：电源转换器件
公开(公告)号：JP2013062916A
公开(公告)日：2013-04-04
申请号：JP2011198635
申请日：2011-09-12
申请人： Nippon Soken Inc , 株式会社日本自動車部品総合研究所 , Denso Corp , 株式会社デンソー
发明人： SUMI TAKASHI , SAKAKIBARA HIROYUKI , HAYASHI YUJI
IPC分类号： H02M3/28
CPC分类号： H02M1/40 , H02M3/3376
摘要： PROBLEM TO BE SOLVED: To provide a power conversion device that suppresses biased magnetization of a transformer owing to characteristic variations of components.SOLUTION: If there are any characteristic variations of FETs 110-113, a positive or negative DC component is included in a current flowing through a primary winding 100. A control circuit 13, however, determines a pulse voltage on the basis of an output voltage of an output side circuit 12 and a current flowing through the primary winding 100 in the application of the second last pulse voltage. Specifically, a positive pulse voltage is determined on the basis of a positive current flowing through the primary winding 100 to control the positive current, and a negative pulse voltage is determined on the basis of a negative current to control the negative current. This can finally suppress the DC component to suppress biased magnetization of the transformer owing to the characteristic variations of the FETs 110-113.
摘要翻译：要解决的问题：提供一种功率转换装置，其由于部件的特性变化而抑制变压器的偏磁化。解决方案：如果FET 110-113有任何特性变化，则在流过初级绕组100的电流中包括正或负DC分量。然而，控制电路13基于输出侧电路12的输出电压和施加第二脉冲电压时流过初级绕组100的电流。具体地说，根据流经初级绕组100的正电流来确定正脉冲电压以控制正电流，并且基于负电流确定负脉冲电压以控制负电流。由于FET 110-113的特性变化，这可以最终抑制DC分量来抑制变压器的偏磁化。版权所有（C）2013，JPO＆INPIT

4. 发明专利

JP2012196080A Switching power supply apparatus 有权
标题翻译：切换电源设备
公开(公告)号：JP2012196080A
公开(公告)日：2012-10-11
申请号：JP2011059340
申请日：2011-03-17
申请人： Nippon Soken Inc , Denso Corp , 株式会社デンソー , 株式会社日本自動車部品総合研究所
发明人： KANESHIRO HIROBUMI , HAYASHI YUJI
IPC分类号： H02M3/155 , H02M3/28
摘要： PROBLEM TO BE SOLVED: To provide a switching power supply apparatus that reduces conduction loss in windings and is downsized in its entirety.SOLUTION: A rectifying device 13 that smooths an output voltage Vout into a direct current is connected in reverse bias to a direct-current power supply 11 via a switching element 12. The switching element 12 is connected between a positive terminal of the direct-current power supply 11 and a cathode terminal of the rectifying device 13 and interrupts a current from the direct-current power supply 11. One end of an induction element 16a is connected to the connection of the switching element 12 and the rectifying device 13. A capacitative element 17 is connected between the other end of the induction element 16a and a negative terminal of the direct-current power supply 11. The output voltage Vout between both ends of the capacitative elements 17 is provided to a load not shown. An auxiliary winding 16b is magnetically coupled to the induction element 16a, and a clamp element 15 is connected in series to the auxiliary winding 16b. A current according to a surge voltage generating at the rectifying device 13 is passed from the clamp element 15 to the direct-current power supply 11 via the auxiliary winding 16b.
摘要翻译：要解决的问题：提供一种降低绕组中的导通损耗并且整体小型化的开关电源装置。解决方案：将输出电压Vout平滑化成直流电的整流装置13通过开关元件12以反向偏压连接到直流电源11.开关元件12连接在直流电源的正极端子直流电源11和整流装置13的阴极端子，并且中断来自直流电源11的电流。感应元件16a的一端连接到开关元件12和整流装置13的连接电感元件17连接在感应元件16a的另一端和直流电源11的负极之间。电容元件17的两端之间的输出电压Vout被提供给未示出的负载。辅助绕组16b磁耦合到感应元件16a，并且夹紧元件15与辅助绕组16b串联连接。根据在整流装置13产生的浪涌电压的电流经由辅助绕组16b从钳位元件15传递到直流电源11。版权所有（C）2013，JPO＆INPIT

5. 发明专利

JP2012034525A Switching power supply device 有权
标题翻译：切换电源设备
公开(公告)号：JP2012034525A
公开(公告)日：2012-02-16
申请号：JP2010173410
申请日：2010-08-02
申请人： Denso Corp , Nippon Soken Inc , 株式会社デンソー , 株式会社日本自動車部品総合研究所
发明人： KANESHIRO HIROBUMI , HAYASHI YUJI
IPC分类号： H02M3/28
摘要： PROBLEM TO BE SOLVED: To provide a switching power supply device that can reliably reduce reverse voltage applied to a rectifier element connected to a secondary winding of a transformer and minimize increase of loss as a whole device.SOLUTION: A switching power supply device 1 comprises a transformer 10, a main switching element 120, an active clamp circuit 121, surge suppression circuits 122 and 123, and diodes 130 and 131. The transformer 10 comprises a primary winding 100, a secondary winding 101, and an auxiliary winding 102. Inter-terminal voltage of the auxiliary winding 102 is fixed to battery voltage during non-conductive state of the diode 131 and is fixed to inter-terminal voltage of a capacitor 121a which constitute the active clamp circuit 121 during non-conductive state of the diode 130. This allows the device to reliably reduce the reverse voltage applied to the diodes 130 and 131 connected to the secondary winding 101 of the transformer 10 and minimize increase of loss as the whole device.
摘要翻译：要解决的问题：提供一种可以可靠地降低施加到连接到变压器的次级绕组的整流元件的反向电压的开关电源装置，并将作为整体装置的损耗的增加最小化。解决方案：开关电源装置1包括变压器10，主开关元件120，有源钳位电路121，浪涌抑制电路122和123以及二极管130和131.变压器10包括初级绕组100，次级绕组101和辅助绕组102.辅助绕组102的端子间电压在二极管131的非导通状态期间被固定为电池电压，并被固定为构成有源的电容器121a的端子间电压钳位电路121在二极管130的非导通状态期间。这允许器件可靠地降低施加到连接到变压器10的次级绕组101的二极管130和131的反向电压，并且使整个器件的损耗最小化。版权所有（C）2012，JPO＆INPIT

6. 发明专利

JP2010093153A Transformer 有权
标题翻译：变压器
公开(公告)号：JP2010093153A
公开(公告)日：2010-04-22
申请号：JP2008263531
申请日：2008-10-10
申请人： Denso Corp , Nippon Soken Inc , 株式会社デンソー , 株式会社日本自動車部品総合研究所
发明人： HAYASHI YUJI , FURUMURA HIROKI
IPC分类号： H01F30/00 , H01F27/28
摘要： PROBLEM TO BE SOLVED: To provide a transformer which has a small radiation amount of electromagnetic noise. SOLUTION: The transformer has a core 4 made of a magnetic body. Further, the transformer has a primary coil 10 having a primary winding portion 11 wound around the core 4 a plurality of times, and primary-side terminals 12 led out of both ends of the primary winding portion 11. Further, the transformer has, on one side in the axial direction of the primary coil 10, a secondary coil 20 having a secondary winding portion 21 disposed concentrically with the primary coil 10, wound around the core 4, and formed in a flat plate shape of one turn, and secondary-side terminals 22 led out of both ends of the primary winding portion 21. The whole primary winding portion 11 is configured to overlap the secondary winding portion 21 in the axial direction. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供具有小的电磁噪声辐射量的变压器。
解决方案：变压器具有由磁体制成的芯4。此外，变压器具有初级线圈10，其具有多次卷绕在芯体4上的初级绕组部分11，以及从初级绕组部分11的两端引出的初级侧端子12.此外，变压器具有在初级线圈10的轴向的一侧，具有与初级线圈10同心配置的次级绕组部21的次级线圈20缠绕在芯部4上，形成为一圈的平板状，侧面端子22从初级绕组部分21的两端引出。整个初级绕组部分11构造成在次级绕组部分21的轴向方向上重叠。版权所有（C）2010，JPO＆INPIT

7. 发明专利

JP2007228650A Drive circuit for power switching element 有权
标题翻译：电源开关元件驱动电路
公开(公告)号：JP2007228650A
公开(公告)日：2007-09-06
申请号：JP2006043597
申请日：2006-02-21
申请人： Denso Corp , Nippon Soken Inc , 株式会社デンソー , 株式会社日本自動車部品総合研究所
发明人： NAKAMURA KIMIKAZU , YAMASHITA TAKESHI , HOSODA TAKESHI , HAYASHI YUJI
IPC分类号： H02M1/08
CPC分类号： H02M1/38 , H03K17/04123 , H03K17/162 , H03K17/6871 , H03K17/691 , H03K2017/066
摘要： PROBLEM TO BE SOLVED: To provide a drive circuit for power switching elements which has P-channel transistors Tpu, Tpd for making a charge path for charging a positive charge to gates of the power switching elements 16, 18 be conductive, and N-channel transistors Tnu, Tnd for making a discharge path for discharging the gates be conductive in accordance with a rise and a fall of an output pulse from a transformer, and properly maintains their reliability. SOLUTION: Resistors 50u, 50d, 52u, 52d are provided so as to suppress a through current when both of the P-channel transistors Tpu, Tpd and the N-channel transistors Tnu, Tnd are simultaneously turned on. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：为了提供具有用于使用于对功率开关元件16,18的栅极充电正电荷的充电路径的P沟道晶体管Tpu，Tpd的功率开关元件的驱动电路是导通的，以及根据来自变压器的输出脉冲的上升和下降，用于使用于使栅极放电的放电路径的N沟道晶体管Tnu，Tnd导通，并且适当地保持其可靠性。提供电阻器50u，50d，52u，52d，以便当P沟道晶体管Tpu，Tpd和N沟道晶体管Tnu，Tnd同时导通时抑制贯通电流。版权所有（C）2007，JPO＆INPIT

8. 发明专利

JP2005151700A Pulse transformer type gate driving circuit 有权
标题翻译：脉冲变压器类型门驱动电路
公开(公告)号：JP2005151700A
公开(公告)日：2005-06-09
申请号：JP2003385776
申请日：2003-11-14
申请人： Denso Corp , Nippon Soken Inc , 株式会社デンソー , 株式会社日本自動車部品総合研究所
发明人： HAYASHI YUJI , YAMASHITA TAKESHI
IPC分类号： H02M1/08
摘要： PROBLEM TO BE SOLVED: To provide a pulse transformer type gate driving circuit for driving a gate transistor which is excellent in resistance to noises and voltage fluctuations and in which the use range of a duty ratio can be set wider.
SOLUTION: When a terminal on the capacitor side of an output winding Co of a pulse transformer T1 reaches a high level, a transistor Q1 is turned on, a diode D1 is turned off, and a switching element 1 is turned on by feeding the power of the output winding Co to a gate electrode of the switching element 1 through the transistor Q1. At that time, though a diode 2 is turned on, its effect of acting on the gate electrode of the switching element 1 is prevented by the off-state of the transistor Q2. When a terminal on the capacitor side of the output winding Co reaches a low level, the transistor Q2 is turned on, the diode 2 is turned off, and the switching element 1 is turned off by discharging gate electric charges of the switching element 1 through the output winding Co. At that time, though the diode D1 is turned on, its effect of acting on the gate electrode of the switching element 1 is prevented by the off-state of the transistor Q1.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种用于驱动栅极晶体管的脉冲变压器型栅极驱动电路，该栅极晶体管具有优异的耐噪声和电压波动，并且可以将占空比的使用范围设定得更宽。解决方案：当脉冲变压器T1的输出绕组Co的电容器侧的端子达到高电平时，晶体管Q1导通，二极管D1截止，开关元件1导通，开关元件1通过通过晶体管Q1将输出绕组Co的功率馈送到开关元件1的栅电极。此时，尽管二极管2导通，但是通过晶体管Q2的截止状态来防止其作用在开关元件1的栅极上的影响。当输出绕组Co的电容器侧的端子达到低电平时，晶体管Q2导通，二极管2截止，并且通过对开关元件1的栅极电荷进行放电而使开关元件1截止此时，尽管二极管D1导通，但是通过晶体管Q1的截止状态来防止其作用于开关元件1的栅电极的效果。版权所有（C）2005，JPO＆NCIPI

9. 发明专利

JP2002369508A Dc-dc converter 有权
标题翻译： DC-DC转换器
公开(公告)号：JP2002369508A
公开(公告)日：2002-12-20
申请号：JP2001170702
申请日：2001-06-06
申请人： Denso Corp , Nippon Soken Inc , 株式会社デンソー , 株式会社日本自動車部品総合研究所
发明人： KAWASAKI KOJI , SUGIURA TOSHIHIKO , HIRASHIMA SHIGEO , MATSUMAE HIROSHI , HAYASHI YUJI
IPC分类号： H02M3/155
摘要： PROBLEM TO BE SOLVED: To provide a DC-DC converter that can reduce electromagnetic noise and surface voltages, and that can be simplified in circuit configuration and control action.
SOLUTION: When a transistor Q1 is turned off, an auxiliary LC circuit 400 suppresses the potential drop at a junction C of the output terminal of the transistor Q1, by discharging the energy stored during the turned-on period of the transistor Q1 to the junction C. Consequently, the switching loss of transistor Q and surge noise can be reduced, because the potential difference (voltage drop) between both terminals of the transistor Q, when the transistor Q1 is in a turned off state is reduced.
COPYRIGHT: (C)2003,JPO
摘要翻译：要解决的问题：提供可以降低电磁噪声和表面电压的DC-DC转换器，并且可以简化电路配置和控制动作。解决方案：当晶体管Q1截止时，辅助LC电路400通过将在晶体管Q1的接通周期期间存储的能量放电到结点来抑制晶体管Q1的输出端的结C处的电位降因此，由于当晶体管Q1处于截止状态时晶体管Q的两个端子之间的电位差（电压降）减小，所以可以减小晶体管Q的开关损耗和浪涌噪声。

10. 发明专利

JP2014230460A 電力変換装置有权
标题翻译：电力转换系统
公开(公告)号：JP2014230460A
公开(公告)日：2014-12-08
申请号：JP2013110867
申请日：2013-05-27
申请人：株式会社デンソー , Denso Corp , 株式会社日本自動車部品総合研究所 , Nippon Soken Inc
发明人： NAKAMURA KIMIKAZU , HAYASHI YUJI
IPC分类号： H02M3/28 , H02M3/155 , H02M7/48
CPC分类号： H02H7/1213 , G05F1/573 , H02H3/44 , H02H9/02 , H02M1/32 , H02M3/155 , H02M3/335 , H02M7/5387
摘要：【課題】従来よりもコストや体格を抑えられる電力変換装置を提供することである。【解決手段】スイッチングゲート制御信号PLSに基づいて駆動されるスイッチング素子Q1〜Q4にて構成されるスイッチ回路11Aと、スイッチ回路11Aに入力される入力電圧Vin(入力値)を検出する電圧センサ13a(13)と、スイッチングゲート制御信号PLSを出力するスイッチ制御部17とを備える電力変換装置10において、検出回路18Aは、電圧センサ13aで検出される入力電圧Vinに基づいて、入力電圧Vinに関する状態信号Siと、スイッチング素子Q1〜Q4の強制停止に関する第1保護停止信号S1とをスイッチ制御部17に伝達する。この構成によれば、耐圧の高いスイッチング素子を必要しないのでコストを抑えられ、磁気部品の体格を小さく抑えられる。【選択図】図1
摘要翻译：要解决的问题：提供一种能够限制成本和体积增加的电力转换系统，与常规的相比。解决方案：电力转换系统10包括：开关电路11A，其由开关元件Q1至Q4组成基于开关栅极控制信号PLS驱动; 被配置为检测提供给开关电路11A的输入电压Vin（输入值）的电压传感器13a（13）以及配置为输出开关栅极控制信号PLS的开关控制部17。在电力转换系统10中，检测电路18A将与输入电压Vin有关的状态信号Si和与开关元件Q1〜Q4的强制停止有关的第一保护停止信号S1发送到开关控制部17 关于由电压传感器13a检测的输入电压Vin。在该结构中，由于不需要耐压性高的开关元件，所以成本上升受到限制，磁性部件的体积最小化。

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