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11. 发明专利

JP2010068658A Power converter 有权
标题翻译：电源转换器
公开(公告)号：JP2010068658A
公开(公告)日：2010-03-25
申请号：JP2008233737
申请日：2008-09-11
申请人： Denso Corp , 株式会社デンソー
发明人： KAMIYA YASUHIRO , KOBAYASHI TETSUYA , OKAMURA MAKOTO , INOSHITA RYOSUKE
IPC分类号： H02M7/48
摘要： PROBLEM TO BE SOLVED: To reduce the size of a printed circuit board mounted with a plurality of drive elements.
SOLUTION: A power converter 1 includes: a plurality of switching elements 3 for power conversion; and a plurality of drive circuits which individually correspond to these switching elements 3 to drive them. A plurality of semiconductor chips having the drive circuits mutually include an insulating spacing in which potential interference does not occur. Each of them uses a low breakdown voltage LVIC package 50L which is sealed with an insulating material and the LVIC package 50L is disposed in an insulating region between conductor patterns 5U or in an insulating region between the conductor patterns 5U and 5D, on a substrate 4 mounted with the switching elements 3 with a predetermined insulating spacing, and is mounted while driving the switching elements 3.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：减小安装有多个驱动元件的印刷电路板的尺寸。电源转换器1包括：用于电力转换的多个开关元件3; 以及分别对应于这些开关元件3驱动它们的多个驱动电路。具有驱动电路的多个半导体芯片相互包括不发生电位干扰的绝缘间隔。它们各自使用用绝缘材料密封的低击穿电压LVIC封装50L，并且LVIC封装50L设置在导体图案5U之间的绝缘区域中或者布置在导体图案5U和5D之间的绝缘区域中，在基板4上安装有开关元件3，具有预定的绝缘间距，并且在驱动开关元件3时安装。版权所有（C）2010，JPO＆INPIT

12. 发明专利

JP2010035339A Motor controller 审中-公开
标题翻译：电机控制器
公开(公告)号：JP2010035339A
公开(公告)日：2010-02-12
申请号：JP2008195138
申请日：2008-07-29
申请人： Denso Corp , 株式会社デンソー
发明人： TAKAGI NORIYUKI , MAEHARA TSUNEO , INOSHITA RYOSUKE
IPC分类号： H02P27/06
摘要： PROBLEM TO BE SOLVED: To provide a motor controller by which the number of current detecting means is suppressed, and all the phase currents are continuously detected even when one of the phase currents detected by the current detecting means becomes abnormal. SOLUTION: The motor controller includes: a power conversion circuit 11; current sensors 13 to 15; and a control circuit 16. The current sensors 13 to 15 are provided one by one for each phase. A control circuit 16 controls a power conversion circuit 11 based on detection results of the current sensors 13 to 15. When one phase current out of the phase currents detected by the current sensors 13 to 15 is abnormal, the phase current corresponding to an abnormal phase is obtained from a normally detected phase current. Then, the power conversion circuit 11 is controlled based on the normally detected phase current and the obtained phase current. As a result, the number of the current sensors is suppressed from the conventional required four units to three units, and all the phase currents are continuously detected even when one of the phase currents detected by the current sensors 13 to 15 becomes abnormal. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：为了提供电流检测装置的数量被抑制的电动机控制器，并且即使当由电流检测装置检测到的相电流之一变得异常时，所有相电流也被连续检测。电机控制器包括：电源转换电路11; 电流传感器13至15; 和控制电路16.电流传感器13至15每个相逐个提供。控制电路16根据电流传感器13〜15的检测结果来控制电力变换电路11.当电流传感器13〜15检测出的相电流之间的一相电流异常时，与异常相位对应的相电流从正常检测的相电流获得。然后，基于正常检测的相电流和获得的相电流来控制功率转换电路11。结果，电流传感器的数量从传统的所需四个单元抑制到三个单元，并且即使当由电流传感器13至15检测到的相电流之一变得异常时，所有相电流也被连续检测。版权所有（C）2010，JPO＆INPIT

13. 发明专利

JP2009055654A Driver of power switching element and power conversion system 有权
标题翻译：电力开关元件和电力转换系统的驱动器
公开(公告)号：JP2009055654A
公开(公告)日：2009-03-12
申请号：JP2007217260
申请日：2007-08-23
申请人： Denso Corp , 株式会社デンソー
发明人： TAKAGI NORIYUKI , MAEHARA TSUNEO , INOSHITA RYOSUKE
IPC分类号： H02M1/08 , H02M7/48
摘要： PROBLEM TO BE SOLVED: To solve a problem that it is difficult to suppress increase in switching loss of a voltage drive type power switching element while suppressing the surge. SOLUTION: The gate of a switching element SW is connected with a power supply 30 for charging and turning the switching element SW on by means of a switching element 32 and a transistor 34 constituting a charging route. The gate of the switching element SW is connected with the earth 36 for discharging and turning the switching element SW off by means of a switching element 38 and a transistor 40 constituting a discharging route. The amount of current flowing through the charging route or the discharging route can be varied by adjusting the base current of these transistors 34 and 40. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：解决的问题为了解决在抑制浪涌的同时难以抑制电压驱动型功率开关元件的开关损耗增加的问题。解决方案：开关元件SW的栅极与用于通过构成充电路径的开关元件32和晶体管34对开关元件SW进行充电和转动的电源30连接。开关元件SW的栅极与接地36连接，用于通过构成放电路径的开关元件38和晶体管40使开关元件SW放电和转动。可以通过调节这些晶体管34和40的基极电流来改变流过充电路径或放电路径的电流量。（C）2009，JPO＆INPIT

14. 发明专利

JP2008206345A Power converter 审中-公开
标题翻译：电源转换器
公开(公告)号：JP2008206345A
公开(公告)日：2008-09-04
申请号：JP2007041088
申请日：2007-02-21
申请人： Denso Corp , 株式会社デンソー
发明人： INOSHITA RYOSUKE
IPC分类号： H02M7/00 , H02M1/00
摘要： PROBLEM TO BE SOLVED: To provide a power converter having an excellent thermal protection function. SOLUTION: This power converter 1 includes a plurality of semiconductor modules 2 in which a semiconductor device is built, and a cooler 3 having a plurality of cooling pipes 31 disposed at both the main surfaces of the semiconductor module 2 for cooling the semiconductor modules 2. The power converter is constituted so as to perform thermal protection control of the power converter 1 by using temperature information of the semiconductor device in a module 20 to be inspected which is a part of the plurality of semiconductor modules 2. The semiconductor module 2 having the semiconductor device of which temperature rise is the largest at least during usage is the module 20 to be inspected. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供具有优异的热保护功能的功率转换器。解决方案：该电力转换器1包括其中构建半导体器件的多个半导体模块2和冷却器3，其具有设置在半导体模块2的两个主表面处的多个冷却管31，用于冷却半导体模块2.电力转换器构成为通过使用作为多个半导体模块2的一部分的待检查的模块20中的半导体器件的温度信息来执行功率转换器1的热保护控制。半导体模块 2具有至少在使用期间温度上升最大的半导体器件是待检查的模块20。版权所有（C）2008，JPO＆INPIT

15. 发明专利

JP2008141841A Overcurrent protection circuit 有权
标题翻译：过流保护电路
公开(公告)号：JP2008141841A
公开(公告)日：2008-06-19
申请号：JP2006324413
申请日：2006-11-30
申请人： Denso Corp , 株式会社デンソー
发明人： INOSHITA RYOSUKE , OHAMA KENICHI
IPC分类号： H02H3/093 , H02H7/20 , H02M1/00 , H02M7/00
摘要： PROBLEM TO BE SOLVED: To solve a problem that it is difficult to properly detect an overcurrent immediately after the on-operation of a switching element SW when detecting the overcurrent by detecting a current flowing in the switching element SW by using a sense voltage. SOLUTION: The sense voltage is applied to each non-inverting input terminal of an overcurrent comparator 43 and a penetration current comparator 44 via an RC filter circuit 42. Threshold voltages Vref1, Vref2 are applied to inverting input terminals of the overcurrent comparator 43 and the penetration current comparator 44. When a duration in which the sense voltage becomes the threshold voltage Vref1 or higher reaches a specified time Delay1 or longer, and when a duration in which the sense voltage becomes the threshold voltage Vref2 or higher reaches a specified time Delay2 or longer, the switching element SW is shut off. The specified time Delay2 and the threshold voltage Vref2 are set for a penetration current. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：解决的问题为了解决在通过使用感测检测开关元件SW中流动的电流来检测过电流时，难以适当地检测开关元件SW的接通动作之后的过电流的问题电压。解决方案：通过RC滤波器电路42将感测电压施加到过电流比较器43和穿透电流比较器44的每个非反相输入端。阈值电压Vref1，Vref2被施加到过电流比较器的反相输入端 43和穿透电流比较器44.当感测电压变为阈值电压Vref1或更高的持续时间达到指定时间Delay1或更长时，并且当感测电压变为阈值电压Vref2或更高的持续时间达到指定的时间延迟2或更长时间，开关元件SW被切断。针对穿透电流设定指定时间Delay2和阈值电压Vref2。版权所有（C）2008，JPO＆INPIT

16. 发明专利

JP2008141390A Overcurrent protection circuit 有权
标题翻译：过流保护电路
公开(公告)号：JP2008141390A
公开(公告)日：2008-06-19
申请号：JP2006324415
申请日：2006-11-30
申请人： Denso Corp , 株式会社デンソー
发明人： INOSHITA RYOSUKE
IPC分类号： H03K17/08 , H02M1/08 , H02M7/00 , H03K17/56
摘要： PROBLEM TO BE SOLVED: To resolve the problem that it is difficult to properly limit a current flowing to a voltage driven switching element SW in the case that a voltage applied to a conduction control terminal of the switching element SW is variably set. SOLUTION: A sense voltage is applied via a RC filter circuit 42 to respective non-inverting input terminals of a comparator 43 for overcurrent and a comparator 44 for through current. Threshold voltages Vref1 and Vref2 are applied to respective inverting input terminals of the comparator 43 for overcurrent and the comparator 44 for through current. When the time for which the sense voltage is kept equal to or higher than the threshold voltage Vref1 is equal to or longer than a prescribed time Delay1 or the time for which the sense voltage is kept equal to or higher than the threshold voltage Vref2 is equal to or longer than a prescribed time Delay2, the switching element SW is cut off. Threshold voltages Vref1 and Vref2 are variably set in accordance with a voltage applied to a gate of the switching element SW. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：解决的问题为了解决在施加到开关元件SW的导通控制端子的电压是可变地设定的情况下难以适当地限制流向电压驱动的开关元件SW的电流的问题。解决方案：通过RC滤波器电路42将感测电压施加到用于过电流的比较器43的相应非反相输入端子和用于直流电流的比较器44。阈值电压Vref1和Vref2被施加到用于过电流的比较器43的相应反相输入端，而比较器44被施加于过电流。当感测电压保持等于或高于阈值电压Vref1的时间等于或大于规定时间Delay1或者感测电压保持等于或高于阈值电压Vref2的时间相等达到或超过规定时间Delay2时，开关元件SW被切断。阈值电压Vref1和Vref2根据施加到开关元件SW的栅极的电压可变地设定。版权所有（C）2008，JPO＆INPIT

17. 发明专利

JP2008136335A Overcurrent detection circuit 有权
标题翻译：过流检测电路
公开(公告)号：JP2008136335A
公开(公告)日：2008-06-12
申请号：JP2007077247
申请日：2007-03-23
申请人： Denso Corp , 株式会社デンソー
发明人： ISHIURA DAISUKE , MAEHARA TSUNEO , INOSHITA RYOSUKE , OHAMA KENICHI
IPC分类号： H02M7/00 , H02M1/00
CPC分类号： H03K17/0828 , H03K17/14 , H03K2017/0806 , H03K2217/0027
摘要： PROBLEM TO BE SOLVED: To solve the problem of inconvenience which occurs by deciding whether overcurrent flows between the input/output terminals of a switching element by using a digital circuit. SOLUTION: The current flowing between the collector and the emitter of a switching element SW is detected indirectly as a voltage drop amount, caused by a minute current outputted from a sense terminal ST, and is applied to an inversion input terminal of a comparator 30. The temperature of the switching element SW is detected by a thermosensitive diode D. The output of the thermosensitive diode D is converted by an output conversion circuit 50. As a result of this, output signal Vo is such a signal that corresponds to the threshold, in deciding whether the current, flowing between the collector and the emitter of the switching element SW, is equal to or higher than the threshold. This output signal Vo is applied to a non-inversion input terminal of the comparator 30. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：通过使用数字电路来决定开关元件的输入/输出端子之间的过电流是否流过来解决发生的不便的问题。解决方案：开关元件SW的集电极和发射极之间流动的电流被间接地检测为由从感测端子ST输出的微小电流引起的电压降量，并被施加到反相输入端子开关元件SW的温度由热敏二极管D检测。热敏二极管D的输出由输出转换电路50转换。结果，输出信号Vo是对应于在判定开关元件SW的集电极和发射极之间的电流是否等于或高于阈值时的阈值。该输出信号Vo被施加到比较器30的非反相输入端。版权所有（C）2008，JPO＆INPIT

18. 发明专利

JP2011130571A Controller for power conversion circuit 有权
标题翻译：电源转换电路控制器
公开(公告)号：JP2011130571A
公开(公告)日：2011-06-30
申请号：JP2009286184
申请日：2009-12-17
申请人： Denso Corp , 株式会社デンソー
发明人： TAKASU HISASHI , INOSHITA RYOSUKE
IPC分类号： H02M1/08 , H02M3/28 , H02M7/48
CPC分类号： H02M3/1582 , H02P27/06
摘要： PROBLEM TO BE SOLVED: To solve the problem, wherein when the voltage of a direct-current power supply is converted and outputted by repeating the operation of turning on and off a power switching element Si to increase or decrease the absolute value of current passing through a coil, when a period for which the power switching element is to be turned on is short, on-time controllability is degraded. SOLUTION: The voltage of a capacitor 58 is applied to the gate of the power switching element Si. Prior to the power switching element Si being turned on at this time, the maximum value of current passing during the on-operation period is estimated, and the voltage of the capacitor 58 is varied and set, according to whether the estimated value is equal to or higher than the threshold. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：解决问题的方案为了解决这样的问题，当通过重复打开和关闭功率开关元件Si的操作来转换和输出直流电源的电压时，增加或减少直流电源的绝对值通过线圈的电流，当功率开关元件要接通的周期短时，导通时间可控性降低。解决方案：将电容器58的电压施加到功率开关元件Si的栅极。在此时电源开关元件Si导通之前，估计接通运行期间的电流通过的最大值，并根据估计值是否等于电容器58的电压进行变化和设定或高于阈值。版权所有（C）2011，JPO＆INPIT

19. 发明专利

JP2011066963A Power converter 有权
标题翻译：电源转换器
公开(公告)号：JP2011066963A
公开(公告)日：2011-03-31
申请号：JP2009213223
申请日：2009-09-15
申请人： Denso Corp , 株式会社デンソー
发明人： INOSHITA RYOSUKE
IPC分类号： H02M1/08 , H02M7/5387
摘要： PROBLEM TO BE SOLVED: To provide a power converter which turns off a switching element by applying a negative voltage while suppressing a loss. SOLUTION: Positive voltages are always applied to a high-side driving circuit 111a and a low-side driving circuit 131a by a second power source 140 and a bootstrap circuit comprising a first capacitor 111c and a first diode 111d, and a negative voltage is always applied to the high-side driving circuit 111a by the first power source 111b. Moreover, while a high-side element 110 is OFF and a low-side element 130 is ON, the negative voltage is applied to the low-side driving circuit 131a, and the second capacitor 141 is charged by the first power source 111b. Then, while the high-side element 110 is ON and the low-side element 130 is OFF, the second capacitor 141 is discharged, and a negative voltage is applied to the low-side driving circuit 131a. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种功率转换器，其通过在抑制损耗的同时施加负电压来关断开关元件。解决方案：正电压总是通过第二电源140和包括第一电容器111c和第一二极管111d的自举电路施加到高侧驱动电路111a和低侧驱动电路131a，而负电压电压总是通过第一电源111b施加到高侧驱动电路111a。此外，当高侧元件110为OFF并且低侧元件130接通时，负电压被施加到低侧驱动电路131a，并且第二电容器141由第一电源111b充电。然后，当高侧元件110接通并且低侧元件130断开时，第二电容器141被放电，并且负电压被施加到低侧驱动电路131a。版权所有（C）2011，JPO＆INPIT

20. 发明专利

JP2009300353A Current detector 审中-公开
标题翻译：电流检测器
公开(公告)号：JP2009300353A
公开(公告)日：2009-12-24
申请号：JP2008157567
申请日：2008-06-17
申请人： Denso Corp , 株式会社デンソー
发明人： KURE KENJI , INOSHITA RYOSUKE
IPC分类号： G01R15/20
摘要： PROBLEM TO BE SOLVED: To provide a current detector hardly affected by heat generation of an electric power line. SOLUTION: This current detector is provided with a magneto-electric conversion element 10 arranged in a position adjacent to the electric power line 2, and for outputting a voltage corresponding to an intensity of a magnetic field generated in the periphery of the electric power line 2 by an electric current. The current detector is also provided with a signal processing circuit board 11 having at least an amplifying function for amplifying an output voltage from the magneto-electric conversion element 10. The signal processing circuit board 11 is provided in a position other than a just vertically upper side of the electric power line 2 in the periphery of the electric power line 2. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供几乎不受电力线的发热影响的电流检测器。解决方案：该电流检测器设置有布置在与电力线2相邻的位置的磁电转换元件10，并且用于输出对应于电气周边产生的磁场的强度的电压电力线2通过电流。电流检测器还设置有至少具有用于放大来自磁电转换元件10的输出电压的放大功能的信号处理电路板11.信号处理电路板11设置在除垂直上方电力线2的外围的电力线2的侧面。（C）2010年，JPO＆INPIT

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