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1.发明授权Constant-voltage diode, power converter using the same and process of producing constant-voltage diode 失效恒压二极管，那些含有功率转换器，使一个恒压二极管的方法
公开(公告)号：EP0533439B1
公开(公告)日：1999-12-01
申请号：EP92308395.0
申请日：1992-09-15
申请人： Hitachi, Ltd.
IPC分类号： H01L29/87 , H01L21/329 , H01L29/747 , H01L27/06 , H02M1/00
CPC分类号： H01L29/66106 , H01L29/66371 , H01L29/861
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公开(公告)号：EP0105510A2
公开(公告)日：1984-04-18
申请号：EP83109858.7
申请日：1983-10-03
申请人： HITACHI, LTD.
摘要： A power converter such as an inverter or chopper using self-turn-off-type semiconductor devices (GTO 1 to GTO 6 ) supplied power to an inductive load (IM) and free wheel diodes (D 1 , D 2 , D 3 , D 4 , D 5 , D a ) are provided so that the current flowing through this load (IM) circulates not through the power supply (VS) but through the free wheel diodes. When it is detected that the load current exceeds a predetermined value, the self-turn-off-type semiconductors (GTO 1 to GTO 6 ) which are conductive are turned off. At this time, the self-turn-off-type semiconductors (GTO, to GTO 6 ) which are turned on and immediately thereafter cause the recovery current to flow in the free wheel diodes (D 1 , D 2 , D 3 , D 4 , D 5 , D 6 ) are turned off not immediately but after the recovery current disappears.
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公开(公告)号：EP0573836A3
公开(公告)日：1994-06-15
申请号：EP93108299.4
申请日：1993-05-21
申请人： HITACHI, LTD.
IPC分类号： H02M1/08
CPC分类号： H03K17/08144 , H02M1/08 , H02M1/088 , H03K2217/0036 , H03K2217/0081
摘要： Disclosed is an electric power converter comprising a plurality of reactors (4), a plurality of self quenching type switching elements (1), the reactors and switching elements being series-connected per one arm, and surge-absorbing snubber circuits (6,8) connected in parallel to the switching elements respectively, the switching circuits being driven by gate drive circuits (12) connected to respective gates of the switching elements to thereby convert a DC voltage into an AC voltage or convert an AC voltage into a DC voltage, wherein the electric power converter further comprises: means (9,7) for recovering energy accumulated on at least one side of the rectors and the snubber circuits; and means (30) for generating a first DC sourcefor supplying electric power to each of the gate drive circuits, on the basis of the recovered energy. In the electric power converter constituted by a plurality of self quenching type semiconductor switching elements connected in series, high efficiency is attained through reduction in size of the gate driver and electric power saving.
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公开(公告)号：EP0022267B1
公开(公告)日：1983-07-20
申请号：EP80103833.2
申请日：1980-07-04
申请人： Hitachi, Ltd.
CPC分类号： B60L9/22 , B60L2200/26 , B60L2220/12 , H02P27/047
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公开(公告)号：EP0573836A2
公开(公告)日：1993-12-15
申请号：EP93108299.4
申请日：1993-05-21
申请人： HITACHI, LTD.
IPC分类号： H02M1/08
CPC分类号： H03K17/08144 , H02M1/08 , H02M1/088 , H03K2217/0036 , H03K2217/0081
摘要： Disclosed is an electric power converter comprising a plurality of reactors (4), a plurality of self quenching type switching elements (1), the reactors and switching elements being series-connected per one arm, and surge-absorbing snubber circuits (6,8) connected in parallel to the switching elements respectively, the switching circuits being driven by gate drive circuits (12) connected to respective gates of the switching elements to thereby convert a DC voltage into an AC voltage or convert an AC voltage into a DC voltage, wherein the electric power converter further comprises: means (9,7) for recovering energy accumulated on at least one side of the rectors and the snubber circuits; and means (30) for generating a first DC sourcefor supplying electric power to each of the gate drive circuits, on the basis of the recovered energy. In the electric power converter constituted by a plurality of self quenching type semiconductor switching elements connected in series, high efficiency is attained through reduction in size of the gate driver and electric power saving.
摘要翻译： 公开了一种电力转换器，包括多个反应器（4），多个自熄型开关元件（1），每个臂串联连接的电抗器和开关元件以及浪涌吸收缓冲电路（6,8 ），开关电路由连接到开关元件的各个栅极的栅极驱动电路（12）驱动，从而将DC电压转换为AC电压或将AC电压转换成DC电压， 其中所述电力转换器还包括：用于恢复累积在所述整流器和所述缓冲电路的至少一侧上的能量的装置（9,7）; 以及用于根据回收的能量产生用于向每个栅极驱动电路提供电力的第一DC源的装置（30）。 在由串联连接的多个自熄型半导体开关元件构成的电力转换器中，通过减小栅极驱动器的尺寸和节省电力来实现高效率。
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公开(公告)号：EP0073045B1
公开(公告)日：1986-12-10
申请号：EP82107656.9
申请日：1982-08-20
申请人： Hitachi, Ltd.
CPC分类号： H02M7/527
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公开(公告)号：EP0105510A3
公开(公告)日：1985-11-21
申请号：EP83109858
申请日：1983-10-03
申请人： HITACHI, LTD.
IPC分类号： H02M07/515 , H02P13/18
摘要： A power converter such as an inverter or chopper using self-turn-off-type semiconductor devices (GTO 1 to GTO 6 ) supplied power to an inductive load (IM) and free wheel diodes (D 1 , D 2 , D 3 , D 4 , D 5 , D a ) are provided so that the current flowing through this load (IM) circulates not through the power supply (VS) but through the free wheel diodes. When it is detected that the load current exceeds a predetermined value, the self-turn-off-type semiconductors (GTO 1 to GTO 6 ) which are conductive are turned off. At this time, the self-turn-off-type semiconductors (GTO, to GTO 6 ) which are turned on and immediately thereafter cause the recovery current to flow in the free wheel diodes (D 1 , D 2 , D 3 , D 4 , D 5 , D 6 ) are turned off not immediately but after the recovery current disappears.
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公开(公告)号：EP0073045A2
公开(公告)日：1983-03-02
申请号：EP82107656.9
申请日：1982-08-20
申请人： Hitachi, Ltd.
CPC分类号： H02M7/527
摘要： For controlling the rotational speed of an induction motor (3), a pulse-width modulated inverter (2) is provided which converts direct current to alternating current, the converted current being fed to the motor (3). The output voltage and frequency of the inverter (2) is controlled in relation to the motor speed by changing the number of pulses in a half-cycle of the inverter output voltage in accordance with the DC supply voltage and/or with the motor current and/or in accordance with electrical fluctuations which are disturbances in a controlling system for the inverter output voltage.
摘要翻译： 为了控制感应电动机（3）的转速，提供脉宽调制逆变器（2），其将直流电转换成交流电，转换后的电流被馈送到电动机（3）。 逆变器（2）的输出电压和频率通过根据直流电源电压和/或电动机电流改变逆变器输出电压的半周期中的脉冲数来控制与电动机速度相关的 /或者根据作为逆变器输出电压的控制系统中的干扰的电气波动。
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10.发明公开Constant-voltage diode, power converter using the same and process of producing constant-voltage diode 失效恒压二极管，那些含有功率转换器，使一个恒压二极管的方法。
公开(公告)号：EP0533439A2
公开(公告)日：1993-03-24
申请号：EP92308395.0
申请日：1992-09-15
申请人： HITACHI, LTD.
IPC分类号： H01L29/90 , H01L21/329 , H01L29/743 , H01L27/06 , H02M1/00
CPC分类号： H01L29/66106 , H01L29/66371 , H01L29/861
摘要： A constant-voltage diode has a first semiconductor region (14) of a first conductivity type, an adjoining semiconductor region (15) of a second conductivity type, a third semiconductor region (16) of the second conductivity type adjoining the second semiconductor region, and a fourth semiconductor region (17) of the first conductivity type partially surrounded by the second semiconductor region (15). At low reverse biases between a cathode electrode (2) and an anode electrode (3), the behavior of the device is determined by the pn junction (J₁) between the first and second semiconductor regions (14,15). As the reverse biasing increases, the depletion layers of that junction (J₁) will reach the fourth semiconductor region (17), but the reverse bias at this time is insufficient to break down that junction (J₁). Increase of reverse bias causes break down of the pn junction (J₃) between the third and fourth semiconductor regions (16,17). This effect is achieved by suitable impurity concentrations in the semiconductor regions (14,15,16,17). A plurality of fourth semiconductor regions (17) may be provided and a bidirectional structure can be obtained by providing a polarity reversed structure with the first semiconductor region (14) in common.
摘要翻译： 恒压二极管具有第一导电类型的第一半导体区域（14），在第二导电型的邻接的半导体区域（15），第二导电类型邻接第二半导体区域的第三半导体区域（16）， 和第一导电类型的第四半导体区域（17）由所述第二半导体区（15）部分包围。 在阴极电极之间的低反向偏置（2）和所述阳极电极（3），该装置的行为是确定性的由第一和第二半导体区域（14,15）之间的pn结（J1）开采。 为反向偏置增加，耗尽层那样结（J1）将达到所述第四半导体区域（17），但此时的反向偏压不足以分解确实结（J1）。 反向偏置的增加导致在第三和第四半导体区域（16,17）之间的pn结（J3）的击穿。 这种效果是通过在半导体区域（14,15,16,17），其适合的杂质浓度下达到。 可以提供第四半导体区域（17）中的多个和双向结构可以通过提供极性反转结构由共同的第一半导体区域（14）来获得。
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