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    • 2. 发明申请
    • LOAD DRIVING APPARATUS
    • 负载驱动装置
    • US20120126858A1
    • 2012-05-24
    • US13296429
    • 2011-11-15
    • Yasutaka SENDARyotaro MIURAKazuki YAMAUCHI
    • Yasutaka SENDARyotaro MIURAKazuki YAMAUCHI
    • G05F1/10H03K3/00
    • H03K17/0406G05F1/561H03K17/163H03K17/168H03K2217/0036
    • A load driving apparatus for driving a load with a constant current includes a shunt resistor and a driver circuit. A shunt current corresponding to the constant current flows though the shunt resistor. The driver circuit is connected to a first end of the shunt resistor to supply the constant current corresponding to the shunt current to the load. The driver circuit includes a reference voltage source for generating a predetermined reference voltage. The driver circuit adjusts the magnitude of the constant current by performing a feedback-control of the magnitude of the shunt current in such a manner that a first voltage corresponding to the reference voltage and a second voltage corresponding to a voltage at the first end of the shunt resistor become equal to each other.
    • 用于以恒定电流驱动负载的负载驱动装置包括分流电阻器和驱动器电路。 对应于恒流的分流电流流过分流电阻。 驱动电路连接到分流电阻的第一端,以将与分流电流相对应的恒定电流提供给负载。 驱动器电路包括用于产生预定参考电压的参考电压源。 驱动器电路通过对分流电流的大小进行反馈控制来调整恒定电流的大小,使得对应于参考电压的第一电压和对应于参考电压的第一端的电压的第二电压 分流电阻互相相等。
    • 3. 发明申请
    • POWER CONVERSION APPARATUS
    • 功率转换装置
    • US20110058400A1
    • 2011-03-10
    • US12877338
    • 2010-09-08
    • Junichi FukutaTsuneo MaebaraYusuke ShindoRyotaro Miura
    • Junichi FukutaTsuneo MaebaraYusuke ShindoRyotaro Miura
    • H02M7/537
    • H02M7/5387H02M1/084H02M7/003H02M2001/0006
    • The power conversion apparatus includes a power conversion circuit including parallel-connected pairs of a high-side switching element and a low-side switching element connected in series, high-side driver circuits to drive the high-side switching elements, low-side driver circuits to drive the low-side switching elements, and a transformer to supply voltages to drive the high-side switching and low-side switching elements to the high-side and low-side driver circuits. The high-side switching elements are mounted in a row along a first direction on a wiring board, and the low-side switching elements are mounted in a row along the first direction on the wiring board side by side with the row of the high-side switching elements. The transformer is mounted on the wiring board on the side of the row of the high-side switching elements opposite to the row of the low-side switching elements.
    • 电力转换装置包括:电力转换电路,包括串联连接的高侧开关元件和低侧开关元件的并联对,用于驱动高侧开关元件的高侧驱动电路,低侧驱动器 用于驱动低侧开关元件的电路,以及用于提供电压以将高侧开关和低侧开关元件驱动到高侧和低侧驱动器电路的变压器。 高侧开关元件沿着布线板上的第一方向安装成一行,并且低侧开关元件沿着第一方向在布线板上并排安装在一排高端开关元件上, 侧开关元件。 变压器安装在与低侧开关元件的行相对的高侧开关元件的一侧的配线板上。
    • 5. 发明授权
    • Drive device for electric power conversion circuit
    • 电力转换电路驱动装置
    • US08659248B2
    • 2014-02-25
    • US12971526
    • 2010-12-17
    • Ryotaro MiuraTsuneo MaebaraYusuke ShindoJunichi FukutaJunichi Nagata
    • Ryotaro MiuraTsuneo MaebaraYusuke ShindoJunichi FukutaJunichi Nagata
    • H02P6/14H02P6/00H02P25/00H02P27/04
    • H02P6/24H02M7/53875H02M2001/0048H02M2001/0051H03K17/0828Y02B70/1491
    • A drive device has a break circuit. The break circuit inputs phase-current values transferred from phase-current sensors mounted on an electrical path of a motor generator. A power switching element is equipped with a freewheel diode connected in parallel with each other. An inverter has pairs of the power switching elements. In each pair, the power switching element in a high voltage side and the power switching element in a low voltage side are connected in series. It is detected for the freewheel diode to be in a freewheel mode when a forward current flows in the freewheel diode. The break circuit detects the freewheel mode where the current flows in the freewheel diode in a lower arm when the phase-current value is not less than a predetermined threshold value. The break circuit detects the freewheel mode where the current flows in the freewheel diode in an upper arm when the phase-current value is not more than the threshold current value.
    • 驱动装置具有断路电路。 断路电路输入从安装在电动发电机的电路上的相电流传感器传送的相电流值。 功率开关元件配备有彼此并联连接的续流二极管。 逆变器具有成对的功率开关元件。 在每对中,高压侧的功率开关元件和低压侧的功率开关元件串联连接。 当正向电流流过续流二极管时,检测到续流二极管处于续流模式。 当相电流值不小于预定阈值时,断路电路检测电流在下臂中的续流二极管中流动的续流模式。 当相电流值不大于阈值电流值时,断路电路检测电流在上臂中的续流二极管中流动的续流模式。
    • 8. 发明授权
    • Electronic device
    • 电子设备
    • US08842405B2
    • 2014-09-23
    • US13239749
    • 2011-09-22
    • Ryotaro MiuraYasunari TanimuraNoriyuki Takagi
    • Ryotaro MiuraYasunari TanimuraNoriyuki Takagi
    • H02H7/00H02M1/32H03K17/082H02M7/5387
    • H02M1/32H02M7/53871H03K17/0828
    • An electronic device that is capable of detecting an abnormal state such that a switching element is unable to be turned off in spite of a drive signal instructing turn-off of the switching element. The device includes a switching element that is driven by controlling a voltage on its control terminal, a drive circuit that controls the voltage on the control terminal of the switching element on the basis on an inputted drive signal to drive the switching element. In cases where there exists a current flowing through the switching element in spite of the drive signal instructing turn-off of the switching element, the drive circuit determines that the switching element is in an abnormal state, and cuts off supply of voltage from a drive power supply circuit to the control terminal of the switching element to thereby turn off the switching element.
    • 能够检测异常状态的电子设备,使得即使驱动信号指示开关元件的关断,开关元件也不能被断开。 该装置包括通过控制其控制端子上的电压驱动的开关元件,驱动电路,其基于输入的驱动信号来控制开关元件的控制端子上的电压以驱动开关元件。 在驱动信号指示关断开关元件的情况下,存在流过开关元件的电流的情况下,驱动电路确定开关元件处于异常状态,并切断来自驱动器的电压供应 电源电路连接到开关元件的控制端子,从而断开开关元件。