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131. 发明专利

JP2013240247A Switching element drive circuit 有权
标题翻译：开关元件驱动电路
公开(公告)号：JP2013240247A
公开(公告)日：2013-11-28
申请号：JP2012113323
申请日：2012-05-17
申请人： Denso Corp , 株式会社デンソー
发明人： DEWA TETSUYA , MAEHARA TSUNEO
IPC分类号： H02M1/00 , H02M1/08 , H02M3/155 , H02M7/48
摘要： PROBLEM TO BE SOLVED: To provide a new version of a switching element S*# (*=c, u, v, w; #=p, n) drive circuit having an overcurrent protective function for a switching element S*#, which can avoid a reduction in the reliability of the switching element S*#.SOLUTION: When a sense voltage Vse is found to have exceeded a first threshold for the duration of a designated time, processing to turn a soft cutoff switching element 44 on is executed. Also, first clamp processing to limit a gate voltage Vge sequentially by a first clamp voltage Vc1 and a second clamp voltage Vc2 is executed before the gate voltage Vge reaches a terminal voltage VH of a constant voltage power supply 22 while gate electric charges are charged. Furthermore, when the sense voltage Vse is found to have exceeded a second threshold which is larger than the first threshold, second clamp processing to limit the gate voltage Vge by the first clamp voltage Vc1 or the second clamp voltage Vc2 is executed.
摘要翻译：要解决的问题：为开关元件S *＃提供具有过电流保护功能的开关元件S *＃（* = c，u，v，w;＃= p，n）驱动电路的新版本，可以避免开关元件S *＃的可靠性的降低。解决方案：当在指定时间内发现感测电压Vse超过第一阈值时，执行使软断开开关元件44接通的处理。此外，在栅极电荷充电之前，在栅极电压Vge达到恒定电压电源22的端子电压VH之前，执行第一钳位电压Vc1和第二钳位电压Vc2顺序地限制栅极电压Vge的第一钳位处理。此外，当发现感测电压Vse已经超过大于第一阈值的第二阈值时，执行将栅极电压Vge限制为第一钳位电压Vc1或第二钳位电压Vc2的第二钳位处理。

132. 发明专利

JP2013236498A 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：JP2013236498A
公开(公告)日：2013-11-21
申请号：JP2012108126
申请日：2012-05-10
申请人： Denso Corp , 株式会社デンソー
发明人： ASAKO YOSUKE , MAEHARA TSUNEO
IPC分类号： H02M7/48 , H02M1/00 , H02M1/08
CPC分类号： H02H9/02 , H03K17/0828 , H03K2017/0806 , H03K2217/0027
摘要： PROBLEM TO BE SOLVED: To provide a driving device of a switching element S*# (*=c, u, v, w:#=p, n) having an overcurrent protective function of the switching element S*#, capable of promptly detecting that an overcurrent is running through the switching element S*#.SOLUTION: When it is determined that a collector-emitter voltage Vs is lower than a first specified voltage when a switching element S*# is in an off state, a switch 40 is operated so that a resistor 36 and a contact P2 are connected. Thus, when an operation signal g*# is subsequently switched to an on operation command, driving of the switching element S*# can be prohibited.
摘要翻译：要解决的问题：为了提供具有开关元件S *＃的过电流保护功能的开关元件S *＃（* = c，u，v，w：＃= p，n）的驱动装置，能够及时地检测过电流是否通过开关元件S *＃解决方案：当开关元件S *＃处于断开状态时，当确定集电极 - 发射极电压Vs低于第一规定电压时，开关40 被操作，使得电阻器36和触点P2连接。因此，当操作信号g *＃随后切换到接通操作命令时，可以禁止开关元件S *＃的驱动。

133. 发明专利

JP2013198185A Drive circuit for switching element 有权
标题翻译：用于切换元件的驱动电路
公开(公告)号：JP2013198185A
公开(公告)日：2013-09-30
申请号：JP2012059653
申请日：2012-03-16
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 , H02M7/48
CPC分类号： H02H1/0007 , H02H7/16 , H02P29/027 , H02P29/028 , H02P29/032 , H03K17/0828 , H03K2217/0027
摘要： PROBLEM TO BE SOLVED: To provide a drive circuit for a switching element capable of detecting occurrence of a defect in an overcurrent detection function of a switching element S*#.SOLUTION: A terminal T6 of a drive IC 20 is connected to a collector of a switching element S*# via a resistor 42 and a diode 44. A connection point of the resistor 42 and a capacitor 46 is connected to an emitter of the switching element S*# via the capacitor 46. In such a configuration, a drive circuit for the switching element S*# performs defect determination processing that determines whether a short-circuit defect occurs in the resistor 42 or the capacitor 46 or whether a leakage defect and the like occurs in the diode 44, on the basis of a voltage Vdesat of the terminal T6.
摘要翻译：要解决的问题：提供一种用于检测开关元件S *＃的过电流检测功能中出现缺陷的开关元件的驱动电路。解决方案：驱动IC 20的端子T6连接到开关元件S *＃经由电阻器42和二极管44.电阻器42和电容器46的连接点通过电容器46连接到开关元件S *＃的发射极。在这种配置中，驱动器用于开关元件S *＃的电路执行基于电压Vdesat来确定电阻器42或电容器46中是否发生短路缺陷或者二极管44中是否发生漏电缺陷等的缺陷确定处理的终端T6。

134. 发明专利

JP2013183600A 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：JP2013183600A
公开(公告)日：2013-09-12
申请号：JP2012047852
申请日：2012-03-05
申请人： Denso Corp , 株式会社デンソー
发明人： MIYAUCHI SHUN , FUKUDA JUNICHI , MURAHO TOMOYUKI , KOMATSU TAKEYASU , MAEHARA TSUNEO
IPC分类号： H02M1/08 , H02M7/48
CPC分类号： H03K17/56 , H03K17/14
摘要： PROBLEM TO BE SOLVED: To provide a drive unit for switching elements S*# which can perform active gate control and can favorably suppress increase of surge voltages or switching loss which are caused by individual differences in threshold voltages of the switching elements S*#.SOLUTION: In discharge processing, at a point in time between the start and the completion of discharge of gate charge when a sensing voltage Vse as the potential difference between the two ends of a sensing resistor 32 crosses and exceeds a specified voltage Vα*#, the discharge rate is changed from high speed to low speed. Here, the higher the threshold voltages serving as information on the individual differences in the switching elements S*# are, the higher the specified voltage Vα*# is set.
摘要翻译：要解决的问题：提供一种能够进行有源栅极控制的开关元件S *＃的驱动单元，并且可以有利地抑制由开关元件S *＃的阈值电压的个体差异引起的浪涌电压或开关损耗的增加。解决方案：在放电处理中，当感测电阻32的两端之间的电位差的感测电压Vse超过规定电压Vα*时，在栅极电荷放电开始和完成之间的时间点，放电速度从高速变为低速。这里，用作开关元件S *＃中的各个差异的信息的阈值电压越高，则设定指定电压Vα*＃越高。

135. 发明专利

JP2013038971A Power conversion device 有权
标题翻译：电源转换器件
公开(公告)号：JP2013038971A
公开(公告)日：2013-02-21
申请号：JP2011174330
申请日：2011-08-09
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 , H02M3/28
CPC分类号： B60L15/007 , H02M1/44 , H02M3/33561 , Y02T10/645
摘要： PROBLEM TO BE SOLVED: To provide a power conversion device capable of preventing the intersection of a wiring pattern connecting a rectification circuit for feedback and a control circuit and a wiring pattern connecting the control circuit and a switching element, and capable of suppressing adverse effects due to noise.SOLUTION: A wiring pattern W101, which connects a diode 143f and an output-voltage stabilization circuit 145, is formed in a rear-side region of two regions partitioned by a straight line L10 connecting a connection point A10 at the diode 143f side and a connection point B10 at the output-voltage stabilization circuit 145 side. A wiring pattern W102, which connects the output-voltage stabilization circuit 145 and a MOSFET 141, is in a region other than a region surrounded by the straight line 10 and the wiring pattern W101. As a result, the intersection of the wiring pattern W101 and the wiring pattern W102 can be prevented, thereby suppressing adverse effects due to noise associated with a pulse signal.
摘要翻译：解决的问题：提供一种电力转换装置，其能够防止连接用于反馈的整流电路的布线图案和控制电路以及连接控制电路和开关元件的布线图案，并且能够抑制由于噪音造成的不利影响解决方案：连接二极管143f和输出电压稳定电路145的布线图案W101形成在由连接二极管143f的连接点A10的直线L10分隔的两个区域的后部区域中侧和连接点B10在输出稳定电路145侧。连接输出电压稳定电路145和MOSFET141的布线图案W102位于由直线10和布线图案W101包围的区域以外的区域。结果，可以防止布线图案W101和布线图案W102的交叉，从而抑制由于与脉冲信号相关的噪声引起的不利影响。版权所有（C）2013，JPO＆INPIT

136. 发明专利

JP2012205232A Information transmission apparatus 有权
标题翻译：信息传输装置
公开(公告)号：JP2012205232A
公开(公告)日：2012-10-22
申请号：JP2011070253
申请日：2011-03-28
申请人： Denso Corp , 株式会社デンソー
发明人： HAMANAKA YOSHIYUKI , MAEHARA TSUNEO , IWAMURA TAKEHIRO
IPC分类号： H04L25/49
CPC分类号： H02P27/06
摘要： PROBLEM TO BE SOLVED: To provide an information transmission apparatus capable of surely transmitting a plurality of pieces of data with a simple configuration.SOLUTION: A transmission circuit transmits a header pulse signal of which the signal length is twice a reference time and has a predetermined pulse period as well as a continuous pulse pause period which is lower than the reference time, by way of a single signal line. After that, a plurality of data pulse signals are transmitted continuously, of which the signal length is the reference time and has a pulse period corresponding to data and a pulse pause period before/after the pulse period. A micro computer receives the pulse signal transmitted from a transmission circuit by way of a single signal line. The header pulse signal is recognized based on the pulse pause time from the received pulse signal. A plurality of pieces of data are acquired based on the pulse period of the pulse signal after the header pulse signal. A plurality of pieces of data can be transmitted/received by way of a single signal line. A plurality of circuits are not required to be provided for each data as in the conventional case. Consequently, a plurality of pieces of data is surely transmitted with a simple configuration.
摘要翻译：要解决的问题：提供一种能够以简单的配置可靠地发送多条数据的信息传输装置。解决方案：发送电路通过单个发送信号发送信号长度为基准时间的两倍的标题脉冲信号，并且具有预定的脉冲周期以及低于参考时间的连续脉冲暂停时段信号线。之后，连续发送多个数据脉冲信号，其中信号长度为基准时间，并且具有对应于数据的脉冲周期和在脉冲周期之前/之后的脉冲暂停时段。微计算机通过单个信号线接收从发送电路发送的脉冲信号。基于从接收到的脉冲信号的脉冲暂停时间识别头脉冲信号。基于头部脉冲信号之后的脉冲信号的脉冲周期，获取多条数据。可以通过单个信号线来发送/接收多条数据。如常规情况那样，不需要为每个数据提供多个电路。因此，以简单的结构可靠地发送多条数据。版权所有（C）2013，JPO＆INPIT

137. 发明专利

JP2012186968A Power inverter apparatus 有权
标题翻译：电力逆变器装置
公开(公告)号：JP2012186968A
公开(公告)日：2012-09-27
申请号：JP2011049871
申请日：2011-03-08
申请人： Denso Corp , 株式会社デンソー
发明人： MURAHO TOMOYUKI , MAEHARA TSUNEO , HAMANAKA YOSHIYUKI
IPC分类号： H02M7/48 , H02M7/5387
摘要： PROBLEM TO BE SOLVED: To provide a power inverter apparatus capable of accurately estimating a temperature without influence of characteristic variations of a switching element.SOLUTION: A microcomputer 124 finds a difference ΔR between on-resistances of an IGBT 110e and an IGBT 110f from on-resistances R0 and R1 stored in a memory 123 of, respectively, the IGBTs 110e and 110f. The microcomputer 124 finds, from data indicating relationship between on-resistance difference of the IGBTs stored in the memory 123 and a temperature difference associated with the on-resistance difference as well as the found on-resistance difference ΔR, a temperature difference ΔT associated with the on-resistance difference ΔR using the on-resistance R0 of the IGBT 110e as a reference. Further, the microcomputer 124 adds the found temperature difference ΔT to a detected temperature of the IGBT 110e to estimate a temperature of the IGBT 110f not detected. Therefore, the temperature can be accurately estimated without influence of the characteristic variations of the IGBT.
摘要翻译：要解决的问题：提供一种能够在不影响开关元件的特性变化的情况下精确地估计温度的电力逆变器装置。解决方案：微型计算机124分别从IGBT 110e和110f的存储器123中存储的导通电阻R0和R1得到IGBT110e和IGBT110f的导通电阻之差ΔR。微型计算机124从表示存储在存储器123中的IGBT的导通电阻差与导通电阻差有关的温度差以及发现的导通电阻差ΔR之间的关系的数据，求出与使用IGBT110e的导通电阻R0作为基准的导通电阻差ΔR。此外，微型计算机124将发现的温度差ΔT与IGBT110e的检测温度相加，以估计未检测到的IGBT110f的温度。因此，可以不影响IGBT的特性变化来精确地估计温度。版权所有（C）2012，JPO＆INPIT

138. 发明专利

JP2012178951A Switching element and driving circuit 有权
标题翻译：开关元件与驱动电路
公开(公告)号：JP2012178951A
公开(公告)日：2012-09-13
申请号：JP2011041650
申请日：2011-02-28
申请人： Denso Corp , 株式会社デンソー
发明人： MIYAUCHI SHUN , MAEHARA TSUNEO , HAMANAKA YOSHIYUKI , MIURA RYOTARO
IPC分类号： H02M1/00 , H02M1/08 , H02M7/48
CPC分类号： H03K17/18 , H03K17/0828
摘要： PROBLEM TO BE SOLVED: To solve a problem of overcurrent protection that may become non-functional due to abnormal short circuit of terminals T6 and T7 when the number of object to be driven by a drive IC20 is one.SOLUTION: A drive IC20, which is capable of driving two switching elements, drives a single switching element S*# herein. At the driving, the voltage drop amount (voltage Vsd) of a resistor 50, which is generated by a minute current having a correlation with a current flowing through the switching element S*# is input into both of the terminals T6 and T7. The drive IC20 determines whether or not an overcurrent is flowing through the switching element S*# based on the magnitude relation between the voltage of the terminals T6 and T7 and the reference voltage of a reference power source 56.
摘要翻译：要解决的问题：为了解决当由驱动IC20驱动的物体的数量为1时由于端子T6和T7的异常短路而可能变得不起作用的过电流保护的问题。解决方案：能够驱动两个开关元件的驱动IC20在这里驱动单个开关元件S *＃。在驱动时，通过与流过开关元件S *＃的电流相关的微小电流产生的电阻器50的电压降（电压Vsd）被输入到端子T6和T7中。驱动IC20基于端子T6和T7的电压与参考电源56的参考电压之间的大小关系来确定过流是否流过开关元件S *＃。版权所有（C））2012，JPO＆INPIT

139. 发明专利

JP2012165618A Electronic device 有权
标题翻译：电子设备
公开(公告)号：JP2012165618A
公开(公告)日：2012-08-30
申请号：JP2011026166
申请日：2011-02-09
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 , H03K17/08
摘要： PROBLEM TO BE SOLVED: To provide an electronic device that can detect an anomaly in at least any one of a current controlling transistor, a current detecting resistance and an off-driving switching element.SOLUTION: If a gate voltage of an IGBT 110d is higher than a mirror voltage Vm at an end time t4 of a normal mirror period Tm, a control circuit determines that a current controlling FET 121a has short-circuited or a current detecting resistance 121b has short-circuited. Specifically, an anomaly is detected on the basis of the gate voltage of the IGBT 110d at t4, a predetermined time T1 after a rise time t2 of the gate voltage of the IGBT 110d. An anomaly can thus be detected in the current controlling FET 121a or the current detecting resistance 121b.
摘要翻译：要解决的问题：提供一种能够检测电流控制晶体管，电流检测电阻和截止驱动开关元件中的至少任何一个的异常的电子器件。解决方案：如果IGBT 110d的栅极电压高于正常反射镜周期Tm的结束时间t4时的镜面电压Vm，则控制电路确定电流控制FET 121a具有短路或电流检测电阻121b短路。具体地说，在IGBT110d的栅极电压的上升时间t2之后的预定时间T1，基于t0的IGBT110d的栅极电压检测出异常。因此，可以在电流控制FET 121a或电流检测电阻121b中检测到异常。版权所有（C）2012，JPO＆INPIT

140. 发明专利

JP2012157222A Electronic apparatus 有权
标题翻译：电子设备
公开(公告)号：JP2012157222A
公开(公告)日：2012-08-16
申请号：JP2011016718
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
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 controller 125 identifies voltage limiting circuit control information from stored characteristic information about an IGBT 110d. The control circuit 124 controls the voltage limiting circuit 123 based on the identified voltage limiting circuit control information. Without using two power supplies as before, the on-driving constant current circuit 121 and the voltage limiting circuit 123 can adjust a 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.控制器125从存储的关于IGBT的特性信息中识别电压限制电路控制信息 110D。控制电路124基于所识别的电压限制电路控制信息来控制电压限制电路123。驱动恒流电路121和电压限制电路123不使用如前所述的两个电源，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

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