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11. 发明授权

US09130463B2 Drive circuit for switching element 有权
标题翻译：开关元件驱动电路
公开(公告)号：US09130463B2
公开(公告)日：2015-09-08
申请号：US13430804
申请日：2012-03-27
申请人： Takeyasu Komatsu , Yoshiyuki Hamanaka , Tsuneo Maebara , Ryotaro Miura
发明人： Takeyasu Komatsu , Yoshiyuki Hamanaka , Tsuneo Maebara , Ryotaro Miura
IPC分类号： H02P1/00 , H02M1/32 , H03K17/082 , H03K17/0812 , H02M7/5387
CPC分类号： H02M1/32 , H02M7/5387 , H03K17/08128 , H03K17/0828
摘要： A drive circuit for a switching element includes a constant-current control unit and a restriction unit. The constant-current control unit performs a constant-current control for charging an open/close control terminal of a switching element to be driven which is a voltage-controlled switching element with electric charge for turning on the switching element. The restriction unit restricts, to a reference voltage, a voltage between the open/close control terminal and a first end of a pair of ends of a current flow path of the switching element for a predetermined period following a start of the constant-current control within a charging process period during which the open/close control terminal is charged with the electric charge such that the switching element is turned on.
摘要翻译：用于开关元件的驱动电路包括恒流控制单元和限制单元。恒流控制单元进行恒流控制，用于对作为用于接通开关元件的电荷的电压控制开关元件的被驱动开关元件的开/关控制端子进行充电。限制单元在开始恒定电流控制之后的预定时间段内将开关元件的电流流路的一对端部的开/关控制端子与第一端之间的电压限制为参考电压在开/闭控制端子充电电荷的充电处理期间内使开关元件导通。

12. 发明申请

US20120242376A1 LOAD DRIVE APPARATUS AND SEMICONDUCTOR SWITCHING DEVICE DRIVE APPARATUS 审中-公开
标题翻译：负载驱动装置和半导体开关装置驱动装置
公开(公告)号：US20120242376A1
公开(公告)日：2012-09-27
申请号：US13426949
申请日：2012-03-22
申请人： Tomohisa OSE , Yoshiyuki Hamanaka , Yasutaka Senda , Ryotaro Miura , Kenji Yamamoto
发明人： Tomohisa OSE , Yoshiyuki Hamanaka , Yasutaka Senda , Ryotaro Miura , Kenji Yamamoto
IPC分类号： H03K17/08
CPC分类号： H03K17/0828 , H03K17/14
摘要： A load drive apparatus includes a switching device, a gate drive circuit, a clamp circuit, a temperature detection circuit, and an arithmetic device. The switching device controls an on-off state of current supply to a load. The gate drive circuit turns on the switching device by controlling a gate voltage of the switching device so that the switching device operates in a full-on state. The clamp circuit clamps the gate voltage of the switching device to a clamp voltage lower than the gate voltage in the full-on state and higher than a mirror voltage. The temperature detection circuit detects a temperature of the switching device. The arithmetic device calculates a voltage corresponding to a variation in a mirror voltage based on the detected temperature and controls the clamp voltage in the clamp circuit so as to be the calculated voltage.
摘要翻译：负载驱动装置包括开关装置，栅极驱动电路，钳位电路，温度检测电路和运算装置。开关装置控制向负载供电的通断状态。栅极驱动电路通过控制开关器件的栅极电压来接通开关器件，使得开关器件工作在全开状态。钳位电路将开关器件的栅极电压钳位到低于栅极电压的钳位电压，并且高于镜电压。温度检测电路检测开关装置的温度。算术装置根据检测到的温度来计算与镜电压的变化对应的电压，并将钳位电路中的钳位电压控制为计算出的电压。

13. 发明授权

US08842405B2 Electronic device 有权
标题翻译：电子设备
公开(公告)号：US08842405B2
公开(公告)日：2014-09-23
申请号：US13239749
申请日：2011-09-22
申请人： Ryotaro Miura , Yasunari Tanimura , Noriyuki Takagi
发明人： Ryotaro Miura , Yasunari Tanimura , Noriyuki Takagi
IPC分类号： H02H7/00 , H02M1/32 , H03K17/082 , H02M7/5387
CPC分类号： H02M1/32 , H02M7/53871 , H03K17/0828
摘要： 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.
摘要翻译：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。

14. 发明授权

US08766671B2 Load driving apparatus 有权
标题翻译：负载驱动装置
公开(公告)号：US08766671B2
公开(公告)日：2014-07-01
申请号：US13296429
申请日：2011-11-15
申请人： Yasutaka Senda , Ryotaro Miura , Kazuki Yamauchi
发明人： Yasutaka Senda , Ryotaro Miura , Kazuki Yamauchi
IPC分类号： H03K3/00
CPC分类号： H03K17/0406 , G05F1/561 , H03K17/163 , H03K17/168 , H03K2217/0036
摘要： 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.
摘要翻译：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。

15. 发明授权

US08633755B2 Load driver with constant current variable structure 有权
标题翻译：负载驱动器具有恒定电流可变结构
公开(公告)号：US08633755B2
公开(公告)日：2014-01-21
申请号：US13300786
申请日：2011-11-21
申请人： Teppei Kawamoto , Ryotaro Miura
发明人： Teppei Kawamoto , Ryotaro Miura
IPC分类号： H03L5/00
CPC分类号： H03K3/012 , H03K17/163 , H03K17/166 , H03K17/168
摘要： A load driver includes a switching element connected to a load, a constant current generator that generates a constant current, and a driver circuit that turns on the switching element for an on-period, which depends on a value of the constant current and is shortened with an increase in the value of the constant current. The constant current generator supplies a first constant current having a first current value to the driver circuit during the on-period, and supplies a second constant current having a second current value smaller than the first current value after the on-period has elapsed and the switching element reaches an on state.
摘要翻译：负载驱动器包括连接到负载的开关元件，产生恒定电流的恒定电流发生器以及导通开关元件导通开关元件的驱动电路，该导通期间取决于恒定电流的值并被缩短随着恒流电流的增加。恒定电流发生器在导通周期期间向驱动器电路提供具有第一电流值的第一恒定电流，并且在经过接通周期之后提供具有小于第一电流值的第二电流值的第二恒定电流，并且开关元件达到导通状态。

16. 发明申请

US20120126859A1 LOAD DRIVER WITH CONSTANT CURRENT VARIABLE STRUCTURE 有权
标题翻译：负载驱动器具有恒定的电流可变结构
公开(公告)号：US20120126859A1
公开(公告)日：2012-05-24
申请号：US13300786
申请日：2011-11-21
申请人： Teppei Kawamoto , Yasutaka Senda , Ryotaro Miura
发明人： Teppei Kawamoto , Yasutaka Senda , Ryotaro Miura
IPC分类号： H03K3/00
CPC分类号： H03K3/012 , H03K17/163 , H03K17/166 , H03K17/168
摘要： A load driver includes a switching element connected to a load, a constant current generator that generates a constant current, and a driver circuit that turns on the switching element for an on-period, which depends on a value of the constant current and is shortened with an increase in the value of the constant current. The constant current generator supplies a first constant current having a first current value to the driver circuit during the on-period, and supplies a second constant current having a second current value smaller than the first current value after the on-period has elapsed and the switching element reaches an on state.
摘要翻译：负载驱动器包括连接到负载的开关元件，产生恒定电流的恒定电流发生器以及导通开关元件导通开关元件的驱动电路，该导通期间取决于恒定电流的值并被缩短随着恒流电流的增加。恒定电流发生器在导通周期期间向驱动器电路提供具有第一电流值的第一恒定电流，并且在经过接通周期之后提供具有小于第一电流值的第二电流值的第二恒定电流，并且开关元件达到导通状态。

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