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61. 发明专利

JP2014147266A Drive unit for switching element 有权
标题翻译：用于开关元件的驱动单元
公开(公告)号：JP2014147266A
公开(公告)日：2014-08-14
申请号：JP2013015659
申请日：2013-01-30
申请人： Denso Corp , 株式会社デンソー
发明人： ASAKO YOSUKE , MAEHARA TSUNEO
IPC分类号： H02M1/08 , H02M1/00 , H02M7/48
摘要： PROBLEM TO BE SOLVED: To provide a drive unit for switching element capable of avoiding constraint on occasions of deterioration diagnosis of a switching element S*#.SOLUTION: A drive IC 20 includes: a driving control section 22 that has a function for driving a switching element S*#, and a memory 24 that stores a threshold time Tth being a driving time of a switching element S*# assumed that the switching element S*# has been deteriorated. The driving control section 22, when a counter value corresponding to an input time of an on-driving signal is determined to be not less than the threshold value Tth stored in the memory 24, performs deterioration diagnosis for diagnosing whether or not the switching element S*# has been deteriorated.
摘要翻译：要解决的问题：提供一种能够避免对开关元件S *＃的劣化诊断的限制的开关元件的驱动单元。解决方案：驱动IC20包括：驱动控制部22，其具有用于驱动开关元件开关元件S *＃以及存储作为开关元件S *＃的驱动时间的阈值时间Tth的存储器24，假设开关元件S *＃已经劣化。驱动控制部22将与驱动信号的输入时间对应的计数值确定为不小于存储器24中存储的阈值Tth的情况下，进行劣化诊断，以诊断开关元件S *＃已经恶化

62. 发明专利

JP2014073055A Electronic circuit 审中-公开
标题翻译：电子电路
公开(公告)号：JP2014073055A
公开(公告)日：2014-04-21
申请号：JP2012219755
申请日：2012-10-01
申请人： Denso Corp , 株式会社デンソー
发明人： SUZUKI TOMOKI , MAEHARA TSUNEO
IPC分类号： H02M1/08
CPC分类号： H02M7/537 , H02M1/08 , H02M3/33507 , H02M7/003 , H02M7/538 , H03K17/691 , H03K17/7955 , H03K2217/0081
摘要： PROBLEM TO BE SOLVED: To provide an electronic circuit using an insulated power supply as its power source and equipped with a drive IC 26 for driving a switching element S¥#(¥=u, v, w:#=p, n), the size of which circuit being reducible.SOLUTION: A drive IC 26 includes therein: a high voltage side control unit 38 provided in a high voltage region and used to drive a switching element S¥# using an insulated power supply as its power source; and a third photocoupler 62 for transmitting a signal pertaining to an output voltage Vfb of the insulated power supply from the high voltage region to a low voltage region. The drive IC 26 further includes a low voltage side control unit 64 provided in a low voltage region and exerting feedback control on the output voltage Vfb to bring it to its target value on the basis of the signal transmitted by the third photocoupler 62.
摘要翻译：要解决的问题：为了提供使用绝缘电源作为其电源并配备有用于驱动开关元件S＃（¥= u，v，w：＃= p，n））的驱动IC 26的电子电路，其电路的尺寸是可还原的。解决方案：驱动IC26包括：高压侧控制单元38，设置在高压区域中，用于使用绝缘电源作为其电源驱动开关元件S＃＃; 以及第三光电耦合器62，用于将与绝缘电源的输出电压Vfb有关的信号从高电压区域发送到低电压区域。驱动IC26还包括设置在低电压区域中的低电压侧控制单元64，并且基于由第三光电耦合器62发送的信号对输出电压Vfb进行反馈控制以使其达到其目标值。

63. 发明专利

JP2014011701A Circuit for driving switching element 有权
标题翻译：驱动开关元件电路
公开(公告)号：JP2014011701A
公开(公告)日：2014-01-20
申请号：JP2012148116
申请日：2012-07-02
申请人： Denso Corp , 株式会社デンソー
发明人： WATANABE KEISUKE , MAEHARA TSUNEO
IPC分类号： H03K17/08 , H02M1/08 , H02M7/537 , H03K17/56
摘要： PROBLEM TO BE SOLVED: To provide a circuit for driving a switching element which can accurately determine that an overcurrent flows through a switching element S*# (*=c, u, v, w; #=p, n) even if a phase-to-phase short circuit occurs.SOLUTION: While turning on a switching element S*#, a drive control section 48 performs the process of determining whether or not a voltage change rate Sse is a negative value and below a specified voltage. An affirmative determination in the process asserts that there is a phase-to-phase short circuit, and triggers the process of turning on a soft cutoff switching element 40 and turning off a constant current switching element 26 and also a discharging switching element 30.
摘要翻译：要解决的问题：为了提供一种用于驱动开关元件的电路，即使在相位上能够精确地确定过电流流过开关元件S *＃（* = c，u，v，w;＃= p，n）同相短路。解决方案：在打开开关元件S *＃的同时，驱动控制部分48执行确定电压变化率Sse是否为负值并低于指定电压的处理。在该过程中肯定地确定存在相间短路，并且触发接通软断路开关元件40并关断恒流开关元件26以及放电开关元件30的处理。

64. 发明专利

JP2013250175A Temperature detection device 有权
标题翻译：温度检测装置
公开(公告)号：JP2013250175A
公开(公告)日：2013-12-12
申请号：JP2012125670
申请日：2012-06-01
申请人： Denso Corp , 株式会社デンソー
发明人： WATANABE KAZUNORI , MAEHARA TSUNEO , FUKUDA JUNICHI
IPC分类号： G01K7/01 , H02M7/48
CPC分类号： G01K7/02 , G01K1/026 , G01K7/01 , G01N25/72
摘要： PROBLEM TO BE SOLVED: To provide a temperature detection device the constituent part number of which can be reduced.SOLUTION: A first temperature-sensitive diode and a second temperature-sensitive diode are provided correspondingly to a first switching element and a second switching element, respectively. The temperature-sensitive diodes are connected in series. A common constant-current power supply 24 supplies current to the temperature-sensitive diodes. In this configuration, a potential difference detection circuit 26 detects a potential difference Vsd across the serial connection body of the first and second temperature-sensitive diodes. The potential difference Vsd detected by the potential difference detection circuit 26 is transmitted through a pulse signal output circuit 28 and a photocoupler as an interface 18 to a control circuit 14.
摘要翻译：要解决的问题：提供一种能够降低其构成部件数量的温度检测装置。解决方案：第一温度敏感二极管和第二温度敏感二极管相应于第一开关元件和第二开关元件设置，分别。温度敏感二极管串联连接。公共恒流电源24向温度敏感二极管供电。在该结构中，电位差检测电路26检测第一和第二感温二极管的串联连接体上的电位差Vsd。由电位差检测电路26检测的电位差Vsd通过脉冲信号输出电路28和作为接口18的光电耦合器发送到控制电路14。

65. 发明专利

JP2013240210A Driver of driven switching element 有权
标题翻译：驱动开关元件的驱动
公开(公告)号：JP2013240210A
公开(公告)日：2013-11-28
申请号：JP2012112122
申请日：2012-05-16
申请人： Denso Corp , 株式会社デンソー
发明人： FUKUDA JUNICHI , MAEHARA TSUNEO , MIURA RYOTARO , KOMATSU TAKEYASU
IPC分类号： H02M1/08 , H02M7/5387
CPC分类号： H03K17/30 , H03K17/06 , H03K2017/066
摘要： PROBLEM TO BE SOLVED: To solve such a problem that other abnormalities cannot be detected when determining only whether or not the gate voltage Vge of a switching element S¥# is an intermediate voltage, in order to deal with an abnormality that the gate voltage Vge becomes the intermediate voltage which is lower than the voltage VH of a DC voltage source 22 but higher than a threshold voltage for bringing about the on state.SOLUTION: An operation signal g¥# of a switching element S¥# is input to a drive control unit 34. When the operation signal g¥# becomes an off operation command, a switching element 26 for charging is turned off and a switching element 32 for discharging is turned on. Furthermore, a determination is made whether or not a gate voltage Vge goes below a specified value which is equal to or lower than a threshold voltage. When it does not go below the specified value, a soft interruption switching element 54 or an off holding switching element 60 configuring a discharge path not including the switching element 32 for discharging is turned on, thus turning the switching element S¥# off forcibly.
摘要翻译：要解决的问题为了解决在仅确定开关元件S＃＃的栅极电压Vge是否是中间电压的情况下不能检测到其他异常的问题，为了处理栅极电压Vge 成为低于直流电压源22的电压VH但高于用于使接通状态的阈值电压的中间电压。解决方案：将开关元件S¥＃的操作信号g¥＃输入到驱动器控制单元34.当操作信号g¥＃成为关闭操作命令时，关闭用于充电的开关元件26，并且用于放电的开关元件32导通。此外，确定栅极电压Vge是否低于等于或低于阈值电压的规定值。当不低于指定值时，导通构成不包括用于放电的开关元件32的放电路径的软断开开关元件54或断开保持开关元件60，从而强制转动开关元件S＃。

66. 发明专利

JP2013143882A Circuit for driving switching element 有权
标题翻译：驱动开关元件电路
公开(公告)号：JP2013143882A
公开(公告)日：2013-07-22
申请号：JP2012003741
申请日：2012-01-12
申请人： Denso Corp , 株式会社デンソー
发明人： FUKUDA JUNICHI , MAEHARA TSUNEO
IPC分类号： H02M1/08 , H02M7/5387 , H03K17/08
CPC分类号： H02P27/06 , H02M7/5387 , H02P27/08 , H03K17/063 , H03K17/166 , H03K17/168
摘要： PROBLEM TO BE SOLVED: To provide a circuit for driving a switching element S*# adapted for active gate control which appropriately avoids degrading the effect of reducing a switching loss.SOLUTION: If a sense voltage Vse in an on state of the switching element S*# is found to be equal to or higher than a threshold voltage, active gate control is performed. If the sense voltage Vse is found to be lower than the threshold voltage, on the other hand, the process of discharging a gate of the switching element S*# is performed with a gate discharging rate at a high rate in the absence of such active gate control.
摘要翻译：要解决的问题：提供一种用于驱动适用于有源栅极控制的开关元件S *＃的电路，其适当地避免降低开关损耗的降低效果。解决方案：如果开关元件S的导通状态下的感测电压Vse *＃被发现等于或高于阈值电压，执行有效栅极控制。如果发现感测电压Vse低于阈值电压，另一方面，在不存在这种有效的情况下，以高速率的栅极放电速率执行对开关元件S *＃的栅极放电的处理门控制。

67. 发明专利

JP2013126270A Drive circuit of switching element 有权
标题翻译：开关元件驱动电路
公开(公告)号：JP2013126270A
公开(公告)日：2013-06-24
申请号：JP2011272478
申请日：2011-12-13
申请人： Denso Corp , 株式会社デンソー
发明人： WATANABE KAZUNORI , MAEHARA TSUNEO , HAMANAKA YOSHIYUKI , FUKUDA JUNICHI , TAKAGI NORIYUKI , MIYAUCHI SHUN
IPC分类号： H02M1/08 , H02M7/5387
摘要： PROBLEM TO BE SOLVED: To provide a drive circuit of a switching element which performs active gate control for adjusting discharge speed of a gate electric charge of a switching element S*#, capable of appropriately suppressing increase in the number of components.SOLUTION: In a state where an operation signal g*# is an off operation command, in the middle of a period starting from a discharge start of a gate electric charge of a switching element S*# till completion of the discharge, a discharge process of a gate is performed in which a discharge path of the gate electric charge of the switching element S*# is changed from a discharge path equipped with a discharge resistor 28 and off holding switching element 36 to a discharge path equipped with the discharge resistor 28 and a discharge switching element 30.
摘要翻译：要解决的问题：提供一种开关元件的驱动电路，该开关元件执行有源栅极控制，以调节开关元件S *＃的栅极电荷的放电速度，能够适当地抑制分量数量的增加。解决方案：在操作信号g *＃为关闭操作命令的状态下，在从开关元件S *＃的栅极电荷的放电开始直到完成放电的期间的中间，执行栅极的放电处理，其中开关元件S *＃的栅极电荷的放电路径从装备有放电电阻器28和关断保持开关元件36的放电路径改变到配备有放电电阻28和放电开关元件30.版权所有（C）2013，JPO＆INPIT

68. 发明专利

JP2013038895A Discharge circuit for capacitor 有权
标题翻译：放电电路用于电容器
公开(公告)号：JP2013038895A
公开(公告)日：2013-02-21
申请号：JP2011172552
申请日：2011-08-08
申请人： Denso Corp , 株式会社デンソー
发明人： WATANABE KAZUNORI , MAEHARA TSUNEO
IPC分类号： H02M7/48
CPC分类号： H02M7/48 , B60L2210/14 , H02M2001/322 , Y02T10/7225
摘要： PROBLEM TO BE SOLVED: To provide a discharge circuit for a capacitor that ensures a discharge path for a capacitor 17 even if a failure occurs in a resistive element of a discharge circuit 20.SOLUTION: An electric power system includes: a high-voltage battery 16; an inverter 12 that has a pair of input terminals and is connected to the high-voltage battery 16 via the input terminals; and a capacitor 17 that is connected between the pair of input terminals. In the system, a parallel connection body of high resistive elements 26 and 28 is connected between the pair of input terminals of the inverter 12. Each of the high resistive elements 26 and 28 is a series connection body composed of a plurality of resistive elements.
摘要翻译：要解决的问题：即使在放电电路20的电阻元件中发生故障，也提供确保电容器17的放电路径的电容器的放电电路。解决方案：电力系统包括高压电池16; 反相器12，具有一对输入端子，并经由输入端子连接到高电压电池16; 以及连接在该对输入端子之间的电容器17。在该系统中，高电阻元件26和28的并联连接体连接在逆变器12的一对输入端之间。高电阻元件26和28中的每一个是由多个电阻元件组成的串联连接体。版权所有（C）2013，JPO＆INPIT

69. 发明专利

JP2012157223A Electronic apparatus 有权
标题翻译：电子设备
公开(公告)号：JP2012157223A
公开(公告)日：2012-08-16
申请号：JP2011016732
申请日：2011-01-28
申请人： Denso Corp , 株式会社デンソー
发明人： ITO HARUHITO , MAEHARA TSUNEO , KOMATSU TAKEYASU
IPC分类号： H02M1/08 , H02M7/5387
CPC分类号： H03K17/04126 , H03K17/0828 , H03K17/127 , H03K17/163 , H03K17/168
摘要： PROBLEM TO BE SOLVED: To provide an electronic apparatus that can appropriately control a switching element in accordance with characteristics with a simple configuration.SOLUTION: A control device 12 includes an on-driving constant current circuit 121, a voltage limiting circuit 123, a control circuit 124 and a controller 125. The control circuit 124 controls the voltage limiting circuit 123 based on stored characteristic information about an IGBT 110d. Without using two power supplies as before, the on-driving constant current circuit 121 and the voltage limiting circuit 123 can adjust gate voltage of the IGBT 110d. This results in a simplified circuit configuration. The voltage limiting circuit 123 is controlled based on the characteristic information about the IGBT 110d stored beforehand. The IGBT 110d can thus be appropriately controlled in accordance with characteristics.
摘要翻译：要解决的问题：提供一种能够以简单的结构根据特性适当地控制开关元件的电子设备。解决方案：控制装置12包括驱动型恒流电路121，电压限制电路123，控制电路124和控制器125.控制电路124基于存储的关于 IGBT 110d。不用如前所述使用两个电源，驱动用恒流电路121和限压电路123可以调节IGBT110d的栅极电压。这导致简化的电路配置。电压限制电路123根据事先存储的IGBT110d的特性信息进行控制。因此，IGBT 110d可以根据特性进行适当的控制。版权所有（C）2012，JPO＆INPIT

70. 发明专利

JP2012034450A Driving device of switching element 有权
标题翻译：开关元件的驱动装置
公开(公告)号：JP2012034450A
公开(公告)日：2012-02-16
申请号：JP2010169944
申请日：2010-07-29
申请人： Denso Corp , 株式会社デンソー
发明人： FUKUDA JUNICHI , MAEHARA TSUNEO , MIURA RYOTARO
IPC分类号： H02M1/08
CPC分类号： H02M1/08 , H02M1/32 , H02M7/5387
摘要： PROBLEM TO BE SOLVED: To solve the problem in which: a driving device of a switching element is unable to handle intermediate voltage anomalies in which conduction control terminal voltage of a voltage-controlled switching element S*# becomes lower than output voltage (gate applied voltage VgH) of a series regulator 22 under normal conditions.SOLUTION: A window comparator 70 outputs a signal of logic HIGH by determining that gate voltage Vge is the intermediate voltage between turn-on voltage of a switching element S*# and gate applied voltage VgH. The signal is fed to an intermediate voltage anomaly detector 74 through a low-pass filter 72. The intermediate voltage anomaly detector 74 switches a switching element for discharging 30, a switching element for soft-shutdown 42, and a switching element for off-state holding 60 to an on-state, and turns a switching element for charging 24 and the series regulator 22 to an off-state when output of the low-pass filter 72 goes logic HIGH.
摘要翻译：解决的问题为了解决以下问题：开关元件的驱动装置不能处理电压控制开关元件S *＃的导通控制端子电压低于输出电压的中间电压异常（栅极施加电压VgH）。解决方案：窗口比较器70通过确定栅极电压Vge是开关元件S *＃的导通电压和栅极施加电压VgH之间的中间电压来输出逻辑高电平的信号。信号通过低通滤波器72馈送到中间电压异常检测器74.中间电压异常检测器74切换用于放电的开关元件30，用于软关断的开关元件42以及用于关断状态的开关元件将60保持为导通状态，并且当低通滤波器72的输出变为逻辑高时，将用于充电的开关元件24和串联调节器22转换为截止状态。版权所有（C）2012，JPO＆INPIT

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