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公开(公告)号：US20060033552A1
公开(公告)日：2006-02-16
申请号：US11191023
申请日：2005-07-28
申请人： Katsumi Ishikawa , Hideki Miyazaki , Koichi Suda
发明人： Katsumi Ishikawa , Hideki Miyazaki , Koichi Suda
IPC分类号： H03K17/687
CPC分类号： H03K17/168 , H02H7/0844 , H02M1/08 , H02M7/797
摘要： To provide a highly reliable inverter apparatus which discriminates long-cycle noise generated by the isolated signal transmission element from short-cycle dv/dt noise and induction noise. A low pass filter, band pass filter, and a switching means are provided between the input section of the gate drive circuit of the voltage-drive type power semiconductor switching element and the isolated signal transmission means that transmits the output of the control circuit; and an abnormal signal discriminating circuit is also provided which turns on and off the switching means according to the output of the band pass filter thereby eliminating long-cycle noise derived from the isolated signal transmission element, short-cycle dv/dt noise, and induction noise; and also outputs alarm signals.
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公开(公告)号：US20080315938A1
公开(公告)日：2008-12-25
申请号：US12204127
申请日：2008-09-04
IPC分类号： H03L5/00
CPC分类号： H03K17/567 , Y10T307/747 , Y10T307/937 , Y10T307/977
摘要： A level shifting circuit, satisfying a requirement of a high tolerated dV/dt level, and a highly reliable inverter circuit, wherein a set pulse signal and a reset pulse signal, both of which are level-shifted to a potential side taking as reference a reference potential of a gate control terminal of a switching terminal, are obtained differentially and integrated, and, in case these pulse signals equal or exceed stipulated integrated values, are transmitted as regular control signals controlling the on/off state.
摘要翻译： 满足高耐受性dV / dt电平的要求的电平移位电路和高可靠性的逆变器电路，其中设置的脉冲信号和复位脉冲信号都被电平转移到电位侧作为参考a 差分地获得开关端子的栅极控制端子的参考电位并积分，并且在这些脉冲信号等于或超过规定的积分值的情况下，作为控制开/关状态的常规控制信号被发送。
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公开(公告)号：US07696650B2
公开(公告)日：2010-04-13
申请号：US12204127
申请日：2008-09-04
IPC分类号： H01H9/54
CPC分类号： H03K17/567 , Y10T307/747 , Y10T307/937 , Y10T307/977
摘要： A level shifting circuit, satisfying a requirement of a high tolerated dV/dt level, and a highly reliable inverter circuit, wherein a set pulse signal and a reset pulse signal, both of which are level-shifted to a potential side taking as reference a reference potential of a gate control terminal of a switching terminal, are obtained differentially and integrated, and, in case these pulse signals equal or exceed stipulated integrated values, are transmitted as regular control signals controlling the on/off state.
摘要翻译： 满足高耐受性dV / dt电平的要求的电平移位电路和高可靠性的逆变器电路，其中设置的脉冲信号和复位脉冲信号都被电平转移到电位侧作为参考a 差分地获得开关端子的栅极控制端子的参考电位并积分，并且在这些脉冲信号等于或超过规定的积分值的情况下，作为控制开/关状态的常规控制信号被发送。
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公开(公告)号：US07564294B2
公开(公告)日：2009-07-21
申请号：US11962608
申请日：2007-12-21
申请人： Katsumi Ishikawa , Hideki Miyazaki , Koichi Suda
发明人： Katsumi Ishikawa , Hideki Miyazaki , Koichi Suda
IPC分类号： H03K17/60
CPC分类号： H03K17/168 , H02H7/0844 , H02M1/08 , H02M7/797
摘要： To provide a highly reliable inverter apparatus which discriminates long-cycle noise generated by the isolated signal transmission element from short-cycle dv/dt noise and induction noise.A low pass filter, band pass filter, and a switching means are provided between the input section of the gate drive circuit of the voltage-drive type power semiconductor switching element and the isolated signal transmission means that transmits the output of the control circuit; and an abnormal signal discriminating circuit is also provided which turns on and off the switching means according to the output of the band pass filter thereby eliminating long-cycle noise derived from the isolated signal transmission element, short-cycle dv/dt noise, and induction noise; and also outputs alarm signals.
摘要翻译： 提供一种高可靠性的逆变器装置，其鉴别由隔离信号传输元件产生的长周期噪声与短周期dv / dt噪声和感应噪声。 在电压驱动型功率半导体开关元件的栅极驱动电路的输入部与发送控制电路的输出的隔离信号发送单元之间设置低通滤波器，带通滤波器和开关单元; 并且还提供异常信号鉴别电路，其根据带通滤波器的输出导通和切断开关装置，从而消除从隔离信号传输元件导出的长周期噪声，短周期dv / dt噪声和感应 噪声; 并输出报警信号。
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公开(公告)号：US07336118B2
公开(公告)日：2008-02-26
申请号：US11191023
申请日：2005-07-28
申请人： Katsumi Ishikawa , Hideki Miyazaki , Koichi Suda
发明人： Katsumi Ishikawa , Hideki Miyazaki , Koichi Suda
IPC分类号： H03K17/687
CPC分类号： H03K17/168 , H02H7/0844 , H02M1/08 , H02M7/797
摘要： To provide a highly reliable inverter apparatus which discriminates long-cycle noise generated by the isolated signal transmission element from short-cycle dv/dt noise and induction noise. A low pass filter, band pass filter, and a switching means are provided between the input section of the gate drive circuit of the voltage-drive type power semiconductor switching element and the isolated signal transmission means that transmits the output of the control circuit; and an abnormal signal discriminating circuit is also provided which turns on and off the switching means according to the output of the band pass filter thereby eliminating long-cycle noise derived from the isolated signal transmission element, short-cycle dv/dt noise, and induction noise; and also outputs alarm signals.
摘要翻译： 提供一种高可靠性的逆变器装置，其鉴别由隔离信号传输元件产生的长周期噪声与短周期dv / dt噪声和感应噪声。 在电压驱动型功率半导体开关元件的栅极驱动电路的输入部与发送控制电路的输出的隔离信号发送单元之间设置低通滤波器，带通滤波器和开关单元; 并且还提供异常信号鉴别电路，其根据带通滤波器的输出导通和切断开关装置，从而消除从隔离信号传输元件导出的长周期噪声，短周期dv / dt噪声和感应 噪声; 并输出报警信号。
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公开(公告)号：US20070001742A1
公开(公告)日：2007-01-04
申请号：US11169776
申请日：2005-06-30
IPC分类号： H03K17/56
CPC分类号： H03K17/567 , Y10T307/747 , Y10T307/937 , Y10T307/977
摘要： A level shifting circuit, satisfying a requirement of a high tolerated dV/dt level, and a highly reliable inverter circuit, wherein a set pulse signal and a reset pulse signal, both of which are level-shifted to a potential side taking as reference a reference potential of a gate control terminal of a switching terminal, are obtained differentially and integrated, and, in case these pulse signals equal or exceed stipulated integrated values, are transmitted as regular control signals controlling the on/off state.
摘要翻译： 满足高耐受性dV / dt电平的要求的电平移位电路和高可靠性的逆变器电路，其中设置的脉冲信号和复位脉冲信号都被电平转移到电位侧作为参考a 差分地获得开关端子的栅极控制端子的参考电位并积分，并且在这些脉冲信号等于或超过规定的积分值的情况下，作为控制开/关状态的常规控制信号被发送。
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7.发明授权Protection circuit for power management semiconductor devices and power converter having the protection circuit 有权具有保护电路的电源管理半导体器件和电力转换器保护电路公开(公告)号：US07295412B2
公开(公告)日：2007-11-13
申请号：US10773283
申请日：2004-02-09
CPC分类号： B60W20/00 , B60K6/485 , B60L3/003 , B60W10/08 , H02H7/20 , H02M1/32 , H03K17/0828 , H03K17/168 , Y02T10/6226
摘要： A collector voltage of a power management semiconductor device is detected by a first comparator, and when the detected collector voltage exceeds a first reference voltage, the first comparator outputs a first detection signal. Furthermore, a gate voltage of the power management semiconductor device is detected by a second comparator, and when the detected gate voltage exceeds a second reference voltage, the second comparator outputs a second detection signal. The second reference voltage is a minimum gate voltage for feeding a rated power to the power management semiconductor device or over, and less than a line power voltage of a drive circuit of the power management semiconductor device. When both the first detection signal and second detection signal are being outputted, the gate voltage is reduced by a gate voltage reduction means so as to protect the power management semiconductor device from overcurrent and overvoltage.
摘要翻译： 功率管理半导体器件的集电极电压由第一比较器检测，并且当检测到的集电极电压超过第一参考电压时，第一比较器输出第一检测信号。 此外，由第二比较器检测功率管理半导体器件的栅极电压，并且当检测到的栅极电压超过第二参考电压时，第二比较器输出第二检测信号。 第二参考电压是用于向功率管理半导体器件提供额定功率或超过功率管理半导体器件的驱动电路的线电源电压的最小栅极电压。 当输出第一检测信号和第二检测信号两者时，通过栅极电压降低装置降低栅极电压，以保护功率管理半导体器件免于过电流和过电压。
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公开(公告)号：US07483250B2
公开(公告)日：2009-01-27
申请号：US11546360
申请日：2006-10-12
申请人： Katsumi Ishikawa , Masataka Sasaki , Koichi Suda
发明人： Katsumi Ishikawa , Masataka Sasaki , Koichi Suda
CPC分类号： H03K17/0828
摘要： A drive circuit that controls a switching device ON/OFF and a soft cutoff command circuit that gradually decreases the gate terminal voltage of the switching device when short circuit of the switching device is detected. Additionally, an ON-pulse retention command circuit retains the output of the drive circuit ON when the gate terminal voltage is judged to have exceeded a specified value by a gate voltage judgment comparator that detects the gate terminal voltage of the switching device.
摘要翻译： 控制切换装置ON / OFF的驱动电路和软开关指令电路，当检测到开关装置的短路时，逐渐降低开关装置的栅极端子电压。 此外，当通过检测开关装置的栅极端子电压的栅极电压判断比较器判断栅极端子电压已经超过规定值时，ON脉冲保持指令电路保持驱动电路的输出。
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9.发明申请Protection circuit for power management semiconductor devices and power converter having the protection circuit 有权具有保护电路的电源管理半导体器件和电力转换器保护电路公开(公告)号：US20080074819A1
公开(公告)日：2008-03-27
申请号：US11979874
申请日：2007-11-09
IPC分类号： H02H3/20
CPC分类号： B60W20/00 , B60K6/485 , B60L3/003 , B60W10/08 , H02H7/20 , H02M1/32 , H03K17/0828 , H03K17/168 , Y02T10/6226
摘要： A collector voltage of a power management semiconductor device is detected by a first comparator, and when the detected collector voltage exceeds a first reference voltage, the first comparator outputs a first detection signal. Furthermore, a gate voltage of the power management semiconductor device is detected by a second comparator, and when the detected gate voltage exceeds a second reference voltage, the second comparator outputs a second detection signal. The second reference voltage is a minimum gate voltage for feeding a rated power to the power management semiconductor device or over, and less than a line power voltage of a drive circuit of the power management semiconductor device. When both the first detection signal and second detection signal are being outputted, the gate voltage is reduced by a gate voltage reduction means so as to protect the power management semiconductor device from overcurrent and overvoltage.
摘要翻译： 功率管理半导体器件的集电极电压由第一比较器检测，并且当检测到的集电极电压超过第一参考电压时，第一比较器输出第一检测信号。 此外，由第二比较器检测功率管理半导体器件的栅极电压，并且当检测到的栅极电压超过第二参考电压时，第二比较器输出第二检测信号。 第二参考电压是用于向功率管理半导体器件提供额定功率或超过功率管理半导体器件的驱动电路的线电源电压的最小栅极电压。 当输出第一检测信号和第二检测信号两者时，通过栅极电压降低装置降低栅极电压，以保护功率管理半导体器件免于过电流和过电压。
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公开(公告)号：US20070030615A1
公开(公告)日：2007-02-08
申请号：US11546360
申请日：2006-10-12
申请人： Katsumi Ishikawa , Masataka Sasaki , Koichi Suda
发明人： Katsumi Ishikawa , Masataka Sasaki , Koichi Suda
IPC分类号： H02H3/00
CPC分类号： H03K17/0828
摘要： A drive circuit that controls a switching device ON/OFF and a soft cutoff command circuit that gradually decreases the gate terminal voltage of the switching device when short circuit of the switching device is detected. Additionally, an ON-pulse retention command circuit retains the output of the drive circuit ON when the gate terminal voltage is judged to have exceeded a specified value by a gate voltage judgment comparator that detects the gate terminal voltage of the switching device.
摘要翻译： 控制切换装置ON / OFF的驱动电路和软开关指令电路，当检测到开关装置的短路时，逐渐降低开关装置的栅极端子电压。 此外，当通过检测开关装置的栅极端子电压的栅极电压判断比较器判断栅极端子电压已经超过规定值时，ON脉冲保持指令电路保持驱动电路的输出。
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