公开(公告)号：US20190157969A1

公开(公告)日：2019-05-23

申请号：US16194903

申请日：2018-11-19

Applicant: DENSO CORPORATION ,  TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Koichi NISHIBATA ,  Yusuke SHINDO ,  Tomohisa OSE ,  Junichi FUKUTA ,  Yasuhiro TERAO ,  Eiichiro SHIGEHARA ,  Keisuke HATA

IPC: H02M1/32 ,  H02P27/06 ,  H02M7/5387 ,  H02P29/024 ,  H02H1/00 ,  H02H7/122

CPC classification number: H02M1/32 ,  H02H1/0007 ,  H02H7/1222 ,  H02M1/08 ,  H02M7/53871 ,  H02P27/06 ,  H02P29/0241 ,  H03K17/18

Abstract: In a control circuit for controlling a power converter that includes a switch, a power supply circuit outputs electrical power, and a command generator generates a switching command that controls switching operations of the switch, based on the electrical power output from the power supply circuit. A failure mode determiner executes a determination of whether which of failure modes has occurred in the power supply circuit, and outputs a result of the determination. A switch controller selectively executes, based on the result of the determination, a first switch control task and a second switch control task. The first switch control task forcibly shuts down the switch independently of the switching command, and the second switch control task enables the switching operations of the switch to be continuously controlled based on the switching command.

公开(公告)号：US20140218099A1

公开(公告)日：2014-08-07

申请号：US14168388

申请日：2014-01-30

Applicant: DENSO CORPORATION

Inventor： Sho YAMADA ,  Yosuke WATANABE ,  Junichi FUKUTA ,  Tsuneo MAEBARA

IPC: H03K17/60

CPC classification number: H03K17/0412

Abstract: An electronic apparatus is provided which includes switching elements, resonance suppression resistors which have first ends connected to control terminals of the switching elements and second ends having a common connection, an on-drive circuit which has an on-drive resistor and is connected to a drive power circuit, and which is supplied with voltage from the drive power circuit and applies electric charge to the control terminals of the switching elements via the on-drive resistor to turn on the switching elements, and an off-drive circuit which has an off-drive resistor and releases electric charge from the control terminals of the switching elements via the off-drive resistor to turn off the switching elements. A resistance of the off-drive resistor is set to be smaller than a resistance of the resonance suppression resistors. The off-drive circuit releases electric charge from the control terminals of the switching elements not via the resonance suppression resistors.

Abstract translation: 提供一种电子设备，其包括开关元件，谐振抑制电阻器，其具有连接到开关元件的控制端子和具有公共连接的第二端的第一端，驱动电路，其具有驱动电阻器并连接到 驱动电源电路，并且从驱动电源电路提供电压，并且经由驱动电阻器向开关元件的控制端子施加电荷以接通开关元件，以及断开驱动电路 驱动电阻，并通过断开驱动电阻从开关元件的控制端子释放电荷，以关断开关元件。 断开驱动电阻器的电阻被设定为小于谐振抑制电阻器的电阻。 断开驱动电路不通过谐振抑制电阻从开关元件的控制端子释放电荷。

公开(公告)号：US20130242438A1

公开(公告)日：2013-09-19

申请号：US13837503

申请日：2013-03-15

Applicant: DENSO CORPORATION

Inventor： Junichi FUKUTA ,  Tsuneo Maebara

IPC: H02H1/00

CPC classification number: H02H1/0007 ,  H02H7/16 ,  H02P29/027 ,  H02P29/028 ,  H02P29/032 ,  H03K17/0828 ,  H03K2217/0027

Abstract: In a driver, a dissipating unit dissipates, upon a potential difference between input and output terminals of a switching element being lower than a predetermined potential, electrical charge for overcurrent detection between the input and output terminals. The dissipating unit includes a rectifier having a pair of first and second conductive terminals. The first conductive terminal is connected to the input terminal of the switching element. An overcurrent determiner determines that an overcurrent flows between the input and output terminals of the switching element upon determination that electrical charge has not been dissipated by the dissipating unit despite the change of the switching element from the off state to the on state. A failure determiner determines whether there is a failure in the dissipating unit as a function of a potential at a point on the first electrical path from the failure determiner to the second conductive terminal.

Abstract translation: 在驱动器中，耗散单元在开关元件的输入和输出端子之间的电位差低于预定电位时消耗用于输入和输出端子之间的过电流检测的电荷。 散热单元包括具有一对第一和第二导电端子的整流器。 第一导电端子连接到开关元件的输入端。 尽管切换元件从断开状态变为接通状态，但是过电流确定器确定在确定没有由耗散单元耗散电荷的情况下，过电流在开关元件的输入和输出端子之间流动。 故障确定器确定在从故障确定器到第二导电端子的第一电路上的点处的电位是否在耗散单元中是否存在故障。

公开(公告)号：US20160226386A1

公开(公告)日：2016-08-04

申请号：US15012448

申请日：2016-02-01

Applicant: DENSO CORPORATION

Inventor： Junichi FUKUTA

IPC: H02M3/335

CPC classification number: B60L11/18 ,  H02P21/22 ,  H02P29/027 ,  H03K17/0412 ,  H03K17/162 ,  H03K17/168 ,  Y02T10/643 ,  Y02T10/7005

Abstract: In a driving device for changing a semiconductor switching element, having an on-off control terminal, between an on state and an off state according to a power supply voltage input thereto, a constant-current driver generates a constant current based on the power supply voltage. The constant-current driver performs one of charging and discharging of the on-off control terminal of the semiconductor switching element based on the generated constant current so as to change the semiconductor switching element from one of the on state and off state to the other thereof. A rate varying unit adjusts, based on correlation information between the power supply voltage and the constant current, a value of the constant current so as to vary a rate of changing the semiconductor switching element from one of the on state and the off state to the other thereof.

Abstract translation: 在根据输入的电源电压改变具有开 - 关控制端子的导通状态和截止状态的半导体开关元件的驱动装置中，恒流驱动器基于电源产生恒定电流 电压。 恒流驱动器基于产生的恒定电流来执行半导体开关元件的通断控制端子的充电和放电之一，以便将半导体开关元件从导通状态和断开状态之一改变为另一个 。 速率变化单元基于电源电压和恒定电流之间的相关信息来调整恒定电流的值，以便将半导体开关元件从接通状态和断开状态中的一个改变到 其他。

公开(公告)号：US20140327431A1

公开(公告)日：2014-11-06

申请号：US14264195

申请日：2014-04-29

Applicant: DENSO CORPORATION

Inventor： Syota NAKAMURA ,  Junichi FUKUTA

IPC: G01R35/00

CPC classification number: G01R31/42 ,  G01R19/0084

Abstract: A voltage detection device controls operation of system main relays to change an applied voltage supplied to detection circuits. An error of each of the detection circuits is corrected on the basis of a detection value of each of the detection circuits when the applied voltage is changed. In particular, an offset value is corrected on the basis of a detection value of each of the detection circuits when the system main relays and booster switches are controlled so that a voltage of a high voltage battery supplied to each of the detection circuits becomes zero. A gain error is further corrected on the basis of a detection value of each of the detection circuits when the system main relays and the booster switches are controlled so that the applied voltage supplied to each of the detection circuits becomes equal to the voltage of the high voltage battery.

Abstract translation: 电压检测装置控制系统主继电器的操作，以改变提供给检测电路的施加电压。 基于每个检测电路在施加电压改变时的检测值来校正每个检测电路的误差。 特别地，当系统主继电器和升压开关被控制使得提供给每个检测电路的高电压电池的电压变为零时，基于每个检测电路的检测值来校正偏移值。 当系统主继电器和升压开关被控制时，基于每个检测电路的检测值进一步校正增益误差，使得提供给每个检测电路的施加电压变得等于高电压 电压电池。

公开(公告)号：US20140197869A1

公开(公告)日：2014-07-17

申请号：US14154645

申请日：2014-01-14

Applicant: DENSO CORPORATION

Inventor： Yousuke WATANABE ,  Junichi FUKUTA ,  Tsuneo MAEBARA

IPC: H03K17/56

CPC classification number: H03K17/18

Abstract: A circuit control device controlling a switching circuit which has a semiconductor switching element, having a main controller, a drive signal output portion and an obtaining portion. The main controller outputs a drive control signal. The drive signal output portion receives the drive control signal and outputs a drive signal to the switching element, the switching element acting on the basis of the drive signal. The obtaining portion obtains circuit information on status of the switching circuit in synchronization with the drive control signal.

Abstract translation: 控制具有半导体开关元件的开关电路的电路控制装置，具有主控制器，驱动信号输出部分和获取部分。 主控制器输出驱动控制信号。 驱动信号输出部分接收驱动控制信号并向开关元件输出驱动信号，开关元件基于驱动信号而起作用。 获取部分与驱动控制信号同步地获得关于开关电路的状态的电路信息。

公开(公告)号：US20130314132A1

公开(公告)日：2013-11-28

申请号：US13901222

申请日：2013-05-23

Applicant: DENSO CORPORATION

Inventor： Junichi FUKUTA ,  Tsuneo MAEBARA

IPC: H03K17/18

CPC classification number: H03K17/18 ,  H03K2017/0806

Abstract: In a driving system for driving a switching element, a controller controls the switching element. A temperature measuring module measures a temperature of the switching element, and output a first signal representing the measured temperature of the switching element as first information. A state determining module determines whether the switching element is in a specified temperature state based on the first signal, and outputs a second signal representing a result of the determination as second information. A communication medium communicably connects between the controller and the state determining module, and the second signal output from the state determining module being transferred to the controller via the communication medium. The controller determines how to drive the switching element based on the second information in the second signal transferred thereto via the communication medium.

Abstract translation: 在用于驱动开关元件的驱动系统中，控制器控制开关元件。 温度测量模块测量开关元件的温度，并将表示开关元件的测量温度的第一信号作为第一信息输出。 状态确定模块基于第一信号确定开关元件是否处于规定的温度状态，并且将表示该确定的结果的第二信号作为第二信息输出。 通信介质可通信地连接在控制器和状态确定模块之间，并且从状态确定模块输出的第二信号经由通信介质传送到控制器。 控制器基于经由通信介质传送到其的第二信号中的第二信息来确定如何驱动开关元件。

公开(公告)号：US20160380563A1

公开(公告)日：2016-12-29

申请号：US15190464

申请日：2016-06-23

Applicant: DENSO CORPORATION

Inventor： Junichi FUKUTA

IPC: H02P6/08 ,  H02M7/48

CPC classification number: H02P27/085 ,  B60L3/003 ,  B60L15/007 ,  B60L2210/30 ,  B60L2210/40 ,  B60L2240/421 ,  B60L2240/429 ,  B60L2240/526 ,  B60L2240/527 ,  B60L2240/529 ,  B60L2240/547 ,  H02M1/32 ,  H02M7/53871 ,  H02M2001/007 ,  Y02T10/644 ,  Y02T10/645 ,  Y02T10/7241

Abstract: In a power conversion control apparatus incorporated in a power conversion system for converting a direct current (DC) voltage output from a converter into an alternating current (AC) using an inverter. The power conversion control apparatus includes a converter drive circuit configured to drive the converter, an inverter drive circuit, and a control electronic control unit (ECU). The inverter drive circuit operates a plurality of switching elements forming the inverter at a variably set switching speed. The control ECU outputs to the converter drive circuit an input voltage change command for changing an input voltage command for an input voltage to be output from the converter and input to the inverter. The control ECU outputs to the inverter drive circuit a drive command for driving the plurality of switching elements and a switching speed change command for changing the switching speed for the plurality of switching elements.

Abstract translation: 在并入电力转换系统的电力转换控制装置中，用于使用逆变器将从转换器输出的直流（DC）电压转换成交流电（AC）。 电力转换控制装置包括驱动转换器的变换器驱动电路，逆变器驱动电路和控制电子控制单元（ECU）。 逆变器驱动电路以可变设定的切换速度操作形成逆变器的多个开关元件。 控制ECU向转换器驱动电路输出用于改变输入电压指令的输入电压变化指令，以从转换器输出的输入电压输入到逆变器。 控制ECU向变频器驱动电路输出用于驱动多个开关元件的驱动指令和用于改变多个开关元件的切换速度的切换速度变更指令。

公开(公告)号：US20140307495A1

公开(公告)日：2014-10-16

申请号：US14253125

申请日：2014-04-15

Applicant: DENSO CORPORATION

Inventor： Junichi FUKUTA ,  Yoshiyuki HAMANAKA ,  Masatoshi TAGUCHI ,  Tsuneo MAEBARA

IPC: H03K17/94 ,  H02H3/08 ,  H02M7/5387

CPC classification number: H02H3/08 ,  H02M7/5387 ,  H03K17/0828 ,  H03K17/165 ,  H03K17/168 ,  H03K2217/0081

Abstract: In a driver having a reference point with a reference potential for driving a target switching element having an on-off control terminal, a charging path electrically connects the on-off control terminal of the target switching element and a driving power source for charging the on-off control terminal of the target switching element. A bypass path electrically connects the on-off control terminal of the target switching element and the driving power source. A storage has a first conductive end electrically connected to the bypass path and a second conductive end electrically connected to the reference point of the target switching element, and is configured for storing therein charge sent through the bypass path.

Abstract translation: 在具有用于驱动具有开 - 关控制端子的目标开关元件的参考电位的参考点的驱动器中，充电路径将目标开关元件的通断控制端和驱动电源电连接，用于对导通 目标开关元件的控制端子。 旁通路将目标开关元件的通断控制端子与驱动电源电连接。 存储器具有电连接到旁路路径的第一导电端和电连接到目标开关元件的参考点的第二导电端，并且被配置为存储通过旁路路径发送的电荷。

公开(公告)号：US20140217942A1

公开(公告)日：2014-08-07

申请号：US14172945

申请日：2014-02-05

Applicant: Denso Corporation

Inventor： Junichi FUKUTA ,  Tsuneo Maebara

IPC: H02P6/00

CPC classification number: H02M7/53875 ,  H02M1/08 ,  H02M1/38 ,  H03K17/78

Abstract: In a driving system, an applying module apples, in response to an input of an on or off command as a switching command, a switch signal to a target switching element as a high- or low-side switching element to switch the target switching element to be an on or off state. A measuring module measures a delay period defined as a time interval from a first time to a second time. The first time represents a time at which the switching command is switched from one of the on command and the off command to the other. The second time represents a time at which the target switching element is actually switched to be the on or off state. An adjusting module adjusts, based on the delay period, an input timing of a next switch signal applied from the applying module to the target switching element.

Abstract translation: 在驱动系统中，应用模块响应于作为开关命令的接通或关断命令的输入，将切换信号作为高侧或低侧开关元件切换到目标开关元件，以切换目标开关元件 成为一个开或关状态。 测量模块测量定义为从第一次到第二次的时间间隔的延迟时间。 第一次表示切换命令从开启命令和关闭命令之一切换到另一个的时间。 第二次表示目标开关元件实际切换为开启或关闭状态的时间。 调整模块基于延迟周期调整从施加模块施加到目标开关元件的下一个开关信号的输入定时。