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1. 发明专利

JP2008228447A Drive device of switching element 有权
标题翻译：开关元件驱动装置
公开(公告)号：JP2008228447A
公开(公告)日：2008-09-25
申请号：JP2007063165
申请日：2007-03-13
申请人： Denso Corp , 株式会社デンソー
发明人： FUKUDA JUNICHI , INOSHITA RYOSUKE , MAEHARA TSUNEO
IPC分类号： H02M1/08 , H02P6/12
摘要： PROBLEM TO BE SOLVED: To solve the problem that voltage applied to a conduction control terminal temporarily becomes unstable when a voltage applying means which can variably set voltage output to the conduction control terminal of a switching element of a voltage driving type is installed and the switching element is driven. SOLUTION: A voltage setting part 40 increases voltage output to a gate of the switching element SW by increasing a duty against a driving voltage generating circuit 26 when a temperature of the switching element SW, which is detected by a temperature sensing diode D, becomes not less than a prescribed temperature. Switching of a switching state and change of output voltage of the driving voltage generating circuit 26 are prevented from being overlapped based on a driving signal of the switching element SW. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题是，为了解决当电压驱动型的开关元件的导通控制端子输出电压可变地设定的电压施加单元被安装时，为了解决施加到导通控制端子的电压暂时变得不稳定的问题并且驱动开关元件。解决方案：当温度感测二极管D检测到开关元件SW的温度时，电压设定部分40通过增加对驱动电压产生电路26的占空比来增加对开关元件SW的栅极的输出电压，变得不小于规定的温度。基于开关元件SW的驱动信号，防止开关状态的切换和驱动电压产生电路26的输出电压的变化重叠。版权所有（C）2008，JPO＆INPIT

2. 发明专利

JP2006113023A Rotation angle detecting device 有权
标题翻译：旋转角度检测装置
公开(公告)号：JP2006113023A
公开(公告)日：2006-04-27
申请号：JP2004303241
申请日：2004-10-18
申请人： Denso Corp , 株式会社デンソー
发明人： SUMIYA KAZUYOSHI , MURAKAMI YOSHIFUMI , ISOMURA HIROBUMI , KODA AKINORI , HONDA TAKAYOSHI , ISHIZUKA KOJI , INOSHITA RYOSUKE
IPC分类号： G01D5/244 , G01D5/245
摘要： PROBLEM TO BE SOLVED: To provide a rotation angle detecting device capable of calculating more precisely than the conventional ones.
SOLUTION: A microcomputer 121 detects the pulse edge of a pulse signal from an analog signal and the pulse signal that are input from a crank angle sensor 110 to an ECU 120, as a reference angle signal. Also, the analog signal turns into a digital signal A/D by conversion in a signal processing circuit 122 and sampling every predetermined interval, and then the microcomputer 121 compares this digital signal with a plurality of threshold values prestored into an EEPROM, and the angle signals interpolating between the reference angle signals are obtained from the comparison results. Then, the microcomputer 121 calculates the value in °CA of the rotation angle of the crank shaft (i.e., an interpolation rotation angle) from the angle signals based on the pulse edges of the pulse signals and the angle signals for interpolating based on the digital signals.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供能够比常规的计算更精确的旋转角度检测装置。解决方案：微型计算机121将来自模拟信号的脉冲信号的脉冲边缘和从曲柄角传感器110输入到ECU120的脉冲信号作为参考角度信号。此外，模拟信号通过信号处理电路122中的转换变为数字信号A / D，并且每隔预定间隔进行采样，然后微计算机121将该数字信号与预先存储到EEPROM中的多个阈值进行比较，从比较结果获得参考角度信号之间的内插信号。然后，微型计算机121基于脉冲信号的脉冲边缘和用于内插的角度信号，根据角度信号计算曲轴的旋转角度（即，内插旋转角度）的°CA的值，基于数字信号。版权所有（C）2006，JPO＆NCIPI

3. 发明专利

JP2009278793A Semiconductor switching circuit for power 有权
标题翻译：功率半导体开关电路
公开(公告)号：JP2009278793A
公开(公告)日：2009-11-26
申请号：JP2008128537
申请日：2008-05-15
申请人： Denso Corp , 株式会社デンソー
发明人： OHAMA KENICHI , INOSHITA RYOSUKE
IPC分类号： H02M1/00 , H02M1/08
摘要： PROBLEM TO BE SOLVED: To provide a power semiconductor switching circuit capable of suppressing failure due to saturation current fluctuation of a power semiconductor switching element due to temperature variation. SOLUTION: A power supply voltage which a power supply voltage stabilizing circuit 5 outputs to a drive circuit 4 is adjusted so that a saturation current variation in a power semiconductor switching element 1 by a temperature variation tends to decline, based on a temperature of the power semiconductor switching element 1 which is detected by a temperature detecting circuit 3 and a relationship between the temperature stored in advance and the power supply voltage of the drive circuit 4. Since variation in saturation current decreases even if a temperature variation occurs in the power semiconductor switching element 1, various protection control can be executed with less margin. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：解决的问题：提供能够抑制由于温度变化引起的功率半导体开关元件的饱和电流波动引起的故障的功率半导体开关电路。解决方案：电源电压稳定电路5向驱动电路4输出的电源电压被调整为使得功率半导体开关元件1中的温度变化的饱和电流变化趋于下降，基于温度由温度检测电路3检测到的功率半导体开关元件1和预先存储的温度与驱动电路4的电源电压之间的关系。由于饱和电流的变化即使在功率半导体开关元件1，可以以较小的余量执行各种保护控制。版权所有（C）2010，JPO＆INPIT

4. 发明专利

JP2009177873A Dead time inspection method and dead time inspection device 审中-公开
标题翻译：死亡时间检查方法和死亡时间检查装置
公开(公告)号：JP2009177873A
公开(公告)日：2009-08-06
申请号：JP2008011202
申请日：2008-01-22
申请人： Denso Corp , 株式会社デンソー
发明人： IINO JUNICHI , INOSHITA RYOSUKE
IPC分类号： H02M7/48
摘要： PROBLEM TO BE SOLVED: To provide a method and device for inspecting dead time, which can shorten the dead time inspection time of electronic equipment with a multi-phase bridge circuit comprising switching elements and with its drive circuit. SOLUTION: The dead time inspection device 3 is constituted of a switching signal output circuit 30 and a determination circuit 31. The switching signal output circuit 30 outputs a high potential side switching signal and a low potential side switching signal. When both a high potential side IGBT drive signal output from high potential side IGBT drive circuits 11a to 11c and a low potential side IGBT drive signal output from low potential side IGBT drive circuits 11d to 11f, have an off-drive period simultaneously, the determination circuit 31 determines that the high potential side IGBT drive signal and the low potential side IGBT drive signal have the dead time. Thus, repetitive inspections for each group of the high potential side IGBT and the low potential side IGBT connected in series are not necessary as before, with the dead time inspection time shortened. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种用于检查死区时间的方法和装置，其可以通过包括开关元件及其驱动电路的多相桥式电路缩短电子设备的死区时间检查时间。解决方案：死区检测装置3由开关信号输出电路30和判定电路31构成。开关信号输出电路30输出高电位侧切换信号和低电位侧切换信号。当从高电位侧IGBT驱动电路11a〜11c输出的高电位侧IGBT驱动信号和从低电位侧IGBT驱动电路11d〜11f输出的低电位侧IGBT驱动信号同时具有断开驱动周期时，电路31确定高电位侧IGBT驱动信号和低电位侧IGBT驱动信号具有死区时间。因此，如前所述，不需要对串联连接的高电位侧IGBT和低电位侧IGBT的各组进行重复检查，从而缩短死区时间检查时间。版权所有（C）2009，JPO＆INPIT

5. 发明专利

JP2009060358A Overcurrent protection circuit and power conversion system 审中-公开
标题翻译：过流保护电路和电源转换系统
公开(公告)号：JP2009060358A
公开(公告)日：2009-03-19
申请号：JP2007225498
申请日：2007-08-31
申请人： Denso Corp , 株式会社デンソー
发明人： FUKUDA JUNICHI , INOSHITA RYOSUKE , MAEHARA TSUNEO , INAMURA HIROSHI , TAKAGI NORIYUKI
IPC分类号： H03K17/08 , H02M7/48 , H03K17/16 , H03K17/56
摘要： PROBLEM TO BE SOLVED: To solve the following problem: fail processing is performed erroneously due to the influence of noise in an overcurrent protection circuit which, when current flowing in a switching element SW is determined to be a threshold or more based on detection of an electrical state amount (sense voltage) correlated with the above current, generates a fail signal indicating that the overcurrent flows in the switching element SW. SOLUTION: When a sense voltage keeps a first threshold voltage vref1 or higher for a specified time Delay1 or longer, an output signal of an OR circuit 47 is becomes logic "H", thereby the fail signal FL is output from a fail signal generating circuit 53. When a driving signal of the switching element SW is OFF, however, since an output signal of an AND circuit 52 becomes logic "L", even when the sense voltage keeps the first threshold voltage vref1 or higher for the specific time Delay1 or longer, the fail signal FL is prohibited from being generated. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：为了解决以下问题：由于过电流保护电路中的噪声的影响导致错误处理错误，当过流保护电路中流过开关元件SW的电流被确定为阈值以上时检测与上述电流相关的电状态量（感测电压），生成表示开关元件SW中的过电流流过的故障信号。解决方案：当感测电压在指定时间Delay1或更长时间内保持第一阈值电压vref1或更高时，OR电路47的输出信号变为逻辑“H”，从而从故障输出故障信号FL 信号发生电路53.然而，当开关元件SW的驱动信号为OFF时，由于AND电路52的输出信号变为逻辑“L”，所以即使感测电压保持第一阈值电压vref1或更高的特定时间延迟1或更长时间，则禁止产生故障信号FL。版权所有（C）2009，JPO＆INPIT

6. 发明专利

JP2008283766A Motor driving device for vehicle 有权
标题翻译：汽车驾驶装置
公开(公告)号：JP2008283766A
公开(公告)日：2008-11-20
申请号：JP2007124806
申请日：2007-05-09
申请人： Denso Corp , 株式会社デンソー
发明人： KAMIYA YASUHIRO , INOSHITA RYOSUKE
IPC分类号： H02P5/74 , B60L9/18 , H02M3/155
CPC分类号： Y02T10/7241
摘要： PROBLEM TO BE SOLVED: To provide a motor driving device for vehicles that is compact and can carry out high-speed signal transmission at low error rate. SOLUTION: A driver circuit that controls connection and disconnection of the power switching elements of a booster circuit 1 and three-phase inverters 21, 22 is mounted on a common circuit board 3. The booster circuit 1, three-phase inverters 21, 22, and common circuit board 3 and a motor controller 6 are housed in the same case. This makes it possible to drive and control multiple three-phase generator motors MG1, MG2 by a motor driving device for vehicles that is compact and excellent in safety. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种紧凑型车辆的马达驱动装置，能够以低误码率进行高速信号传输。解决方案：控制升压电路1和三相逆变器21,22的电源开关元件的连接和断开的驱动电路安装在公共电路板3上。升压电路1，三相逆变器21 ，22，共用电路板3和电动机控制器6被容纳在相同的壳体中。这使得可以通过紧凑且安全性优异的用于车辆的电动机驱动装置来驱动和控制多个三相发电机MG1，MG2。版权所有（C）2009，JPO＆INPIT

7. 发明专利

JP2010004728A Power conversion apparatus 审中-公开
标题翻译：功率转换装置
公开(公告)号：JP2010004728A
公开(公告)日：2010-01-07
申请号：JP2008262724
申请日：2008-10-09
申请人： Denso Corp , 株式会社デンソー
发明人： KOMATSU TAKEYASU , SHINDO YUSUKE , OKAMURA MAKOTO , INOSHITA RYOSUKE
IPC分类号： H02M7/48 , H02M7/66
摘要： PROBLEM TO BE SOLVED: To provide a power conversion apparatus for detecting current flowing bidirectionally with a simple constitution. SOLUTION: A step-up/step-down converter device 1 includes IGBTs 12, 13, flywheel diodes 14, 15, and a current sensing resistor 16. The flywheel diodes 14, 15 are connected between the collector and emitter of the IGBTs 12, 13. The IGBT 12 and the flywheel diode 14 have current sensing terminals 120, 140. One end of the sensing resistor 16 is connected to the current sensing terminals 120, 140, while the other end is connected to the collector of the IGBT 12. When the collector current flows at the IGBT 12, the current of the current sensing terminal 120 is converted to voltage at the current sensing resistor 16. When the flywheel current flows at the flywheel diode 14, the current of the current sensing terminal 140 is converted to voltage at the current sensing resistor 16. In this way, the power conversion apparatus for detecting current flowing bidirectionally with a simple constitution can be configured. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种电力转换装置，用于以简单的结构双向检测电流。解决方案：升压/降压转换器装置1包括IGBT 12,13，续流二极管14,15和电流感测电阻器16.续流二极管14,15连接在集成电路和发射极之间 IGBT 12,13，IGBT 12和续流二极管14具有电流检测端子120,140。感测电阻器16的一端连接到电流检测端子120,140，而另一端连接到电流检测端子120,140。 IGBT12。当集电极电流在IGBT 12处流动时，电流感测端子120的电流被转换为电流感测电阻器16的电压。当飞轮电流在续流二极管14流动时，电流感测端子 140被转换为电流检测电阻器16上的电压。这样，可以构成用简单结构检测双向流动的电力转换装置。版权所有（C）2010，JPO＆INPIT

8. 发明专利

JP2009213305A Power converter 审中-公开
标题翻译：电源转换器
公开(公告)号：JP2009213305A
公开(公告)日：2009-09-17
申请号：JP2008055461
申请日：2008-03-05
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 , H03K17/08 , H03K17/56 , H03K17/687
摘要： PROBLEM TO BE SOLVED: To provide a power converter having a function of protecting a switching element that does not reduce the level of a voltage control signal applied to a control terminal of the switching element and also suppresses variations when the switching element for power conversion is protected from an abnormal current. SOLUTION: The power converter 1 having a pair of main terminals and a control terminal for controlling a current flowing through the pair of main terminals, includes: switching elements 134 to 139 for power conversion, in which each low potential side terminal of the main terminals is connected to a low potential side; a current detection circuit 4 that detects a main current flowing through the pair of main terminals; a main capacitor 5 positioned between the control terminal and the low potential side; and a switching element 6 for protection, which performs a switching operation so that the main capacitor 5 is electrically connected between the control terminal and the low potential side when the main current detected by the current detection circuit 4 exceeds a predetermined value of the switching elements 134 to 139. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种具有保护开关元件的功能的功率转换器，该开关元件不会降低施加到开关元件的控制端子的电压控制信号的电平，并且当开关元件用于电源转换保护免受异常电流的影响。解决方案：具有一对主端子和用于控制流过该对主端子的电流的控制端子的功率转换器1包括：用于功率转换的开关元件134至139，其中每个低电位侧端子主端子连接到低电位侧; 检测流过该对主端子的主电流的电流检测电路4; 位于控制端子和低电位侧之间的主电容器5; 以及用于保护的开关元件6，当由电流检测电路4检测到的主电流超过开关元件的预定值时，执行开关操作，使得主电容器5电连接在控制端子和低电位侧之间 134至139.版权所有（C）2009，JPO＆INPIT

9. 发明专利

JP2008178200A Power semiconductor switching circuit 有权
标题翻译：功率半导体开关电路
公开(公告)号：JP2008178200A
公开(公告)日：2008-07-31
申请号：JP2007008413
申请日：2007-01-17
申请人： Denso Corp , 株式会社デンソー
发明人： INOSHITA RYOSUKE , MAEHARA TSUNEO
IPC分类号： H02M7/00 , H02M1/08
摘要： PROBLEM TO BE SOLVED: To provide a power semiconductor switching circuit wherein heating from a power semiconductor switching element and switching surge are reduced in a balanced manner. SOLUTION: The temperature of the power semiconductor switching element is detected (S102). When the temperature rises (S104), a supply voltage applied to a drive circuit for driving the power semiconductor switching element is increased (S110) to reduce resistance loss in the power semiconductor switching element. When the temperature falls, the supply voltage applied to the drive circuit for driving the power semiconductor switching element is reduced (S106) to reduce the switching surge voltage of the power semiconductor switching element. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种功率半导体开关电路，其中从功率半导体开关元件的加热和开关浪涌以平衡的方式减小。解决方案：检测功率半导体开关元件的温度（S102）。当温度升高时（S104），增加施加到用于驱动功率半导体开关元件的驱动电路的电源电压（S110），以减小功率半导体开关元件中的电阻损耗。当温度降低时，施加到用于驱动功率半导体开关元件的驱动电路的电源电压降低（S106），以降低功率半导体开关元件的开关浪涌电压。版权所有（C）2008，JPO＆INPIT

10. 发明专利

JP2006230166A Gate drive circuit 有权
标题翻译：门控驱动电路
公开(公告)号：JP2006230166A
公开(公告)日：2006-08-31
申请号：JP2005044273
申请日：2005-02-21
申请人： Denso Corp , 株式会社デンソー
发明人： KIMURA TOMONORI , INOSHITA RYOSUKE
IPC分类号： H02M1/08 , H03K17/04 , H03K17/16 , H03K17/56
CPC分类号： H03K17/168 , H02M1/08 , H03K17/0406
摘要： PROBLEM TO BE SOLVED: To provide a gate drive circuit by which both of a switching loss and a noise are reduced, and control is easy, even when an interval between turning on and turning off is short. SOLUTION: When switching elements are turned on from an off-state retaining mode in which switches 13, 15 are turned off and switches 14, 16 are turned on, a turn-on preparation mode is set in which switches other than the switch 15 are turned on, then a reactor current Ir is caused to flow toward a negative electrode side end P2 from a positive electrode side end P1 of a reactor, after which a turn-on execution mode is set in which only the switch 16 is turned on. On the other hand, when the switching elements are turned off from an on-state retaining mode in which the switches 13, 15 are turned on, and the switches 14, 16 are turned off, a turn-off preparation mode is set in which the switches other than the switch 16 are turned on, and the reactor current Ir is caused to flow in the same direction as at the turn-on preparation mode, after which a turn-off execution mode is set where only the switch 15 is turned on. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：即使在打开和关闭之间的间隔短的情况下，也提供了开关损耗和噪声都降低了并且控制容易的栅极驱动电路。解决方案：当开关元件从断开状态保持模式（其中开关13,15关闭并且开关14,16导通）接通时，设置接通准备模式，其中开关开关15接通，则使电抗器电流Ir从电抗器的正极侧端部P1向负极侧端部P2流动，之后设定仅开关16为开启状态的接通执行模式打开。另一方面，当开关元件从开关13,15导通的导通状态保持模式和开关14,16断开时断开时，设置关断准备模式，其中，开关16以外的开关导通，并且使电抗器电流Ir沿着与开机准备模式相同的方向流动，之后设定关断执行模式，其中只有开关15转动上。版权所有（C）2006，JPO＆NCIPI

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