专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US6392908B2 Method and apparatus for driving a semiconductor element 失效
标题翻译：用于驱动半导体元件的方法和装置
公开(公告)号：US6392908B2
公开(公告)日：2002-05-21
申请号：US88493001
申请日：2001-06-21
申请人： HITACHI LTD
发明人： MIYAZAKI HIDEKI , SUZUKI KATSUNORI , TATENO KOJI , SAKANO JUNICHI , IWAMURA MASAHIRO , MORI MUTSUHIRO
IPC分类号： H03K17/082 , H03K17/16 , H03K17/695 , H02M7/521 , H02M7/5387 , H02M7/122
CPC分类号： H03K17/0822 , H03K17/165
摘要： In a driving apparatus of a power semiconductor element for conducting or interrupting a main current, first resistance variable for changing a first resistance according to a control voltage, and second resistance variable for changing a second resistance according to a voltage between a first and a second terminal are provided, and either one of a voltage of a control power supply or a voltage between the first and the second terminal is voltage-divided by the first resistance and the second resistance, and the divided voltage is applied to a control gate terminal at the time of conducting or interrupting the main current.
摘要翻译：在用于导通或中断主电流的功率半导体元件的驱动装置中，根据控制电压改变第一电阻的第一电阻变量，以及根据第一和第二电压之间的电压来改变第二电阻的第二电阻变量端子，并且控制电源的电压或第一和第二端子之间的电压中的任一个被第一电阻和第二电阻分压，并且分压被施加到控制栅极端子执行或中断主电流的时间。

2. 发明专利

DE102004009328C5 未知
公开(公告)号：DE102004009328C5
公开(公告)日：2010-03-04
申请号：DE102004009328
申请日：2004-02-26
申请人： HITACHI LTD , SHIN KOBE ELECTRIC MACHINERY
发明人： KINOSHITA TAKUYA , MIYAZAKI HIDEKI , EMORI AKIHIKO , OKOSHI TETSURO , HIRASAWA TOKIYOSHI
IPC分类号： G01R31/36 , B60L11/18 , H01M8/00 , H01M10/42 , H01M10/48 , H02J7/00 , H02J7/14 , H02P11/00
摘要： A battery performance monitoring system anticipates the sudden fall of battery output. The system measures the battery voltage at a time point when the discharge current of a battery becomes smaller than the reference current value or at a time point when the current to the load which is connected to the battery becomes smaller than the reference current value, and judges the battery to be abnormal if the difference of the measured battery voltage from the approximate formula in regard to the current-voltage relation in the former half of a same discharge event becomes out of the reference range.

3. 发明专利

DE60130508D1 未知
公开(公告)号：DE60130508D1
公开(公告)日：2007-10-31
申请号：DE60130508
申请日：2001-02-06
申请人： HITACHI LTD
发明人： EMORI AKIHIKO , KINOSHITA TAKUYA , MIYAZAKI HIDEKI , KOJIMA YASUYUKI , AKIYAMA NOBORU
IPC分类号： G01R31/36 , G01R19/165 , H01M10/44 , H02J7/00 , H02J7/02 , H02J7/10
摘要： A power storage device has a plurality of series-connected storage battery units (101), battery circuits (102) associated with the storage battery units to control or monitor the storage battery units, respectively; a main circuit (104) of a potential level different from that of the battery circuits; and a potential level changing circuits (103) connecting the battery circuit to the main circuit. The power storage unit is small in construction and operates at a low power consumption in a high control accuracy.

4. 发明专利

DE10354279B4 未知
公开(公告)号：DE10354279B4
公开(公告)日：2006-11-23
申请号：DE10354279
申请日：2003-11-20
申请人： HITACHI LTD
发明人： AMANO MASAHIKO , MIYAZAKI HIDEKI , KINOSHITA TAKUYA , KANAZAWA HIROSHI
IPC分类号： B60R16/033 , H02J7/34 , H01M10/44 , H02J1/14 , H02J7/00 , H02J7/14
摘要： Electric power supply unit which supplies power to loads (16a-16c), has generator (12) and battery (13). Change in power supply voltage to meet load requirement is determined by determining battery condition and load conditions. If the voltage determined is less than a predetermined value, power controller (11) limits current to load.

5. 发明专利

DE102005037788A1 未知
公开(公告)号：DE102005037788A1
公开(公告)日：2006-02-23
申请号：DE102005037788
申请日：2005-08-10
申请人： HITACHI LTD
发明人： ISHIKAWA KATSUMI , MIYAZAKI HIDEKI , SUDA KOICHI
IPC分类号： H02M1/08 , H02M7/48 , H02M7/537

6. 发明专利

DE10338003A1 未知
公开(公告)号：DE10338003A1
公开(公告)日：2004-05-13
申请号：DE10338003
申请日：2003-08-19
申请人： HITACHI LTD , SHIN KOBE ELECTRIC MACHINERY
发明人： KINOSHITA TAKUYA , MIYAZAKI HIDEKI , EMORI AKIHIKO , HIRASAWA TOKIYOSHI
IPC分类号： B60L11/18 , B60L50/16 , G01R31/36 , H01M10/44 , H01M10/48 , B60R16/02
摘要： Motor generator (MG) is controlled via motor controller by MG control processor of CPU, so that voltage and current of battery is detected while changing frequency of state detection current flowing in the secondary battery. According to the detection results, impedance is calculated in the impedance calculation unit. Remaining mount is calculated from the impedance obtained and the battery characteristics stored in memory. Furthermore, remaining amount change correction unit adds integration current between impedance measurements to the remaining amount for correcting the remaining amount. Weighting coefficient is determined from the standard deviation based on the corrected value and the remaining amount and weighted mean is calculated in weighted mean unit. Next, the result of the remaining amount calculation is used to perform service life calculation and service life correction calculation, and weighted mean is calculated in the same way as the remaining amount.

7. 发明专利

DE60003779D1 未知
公开(公告)号：DE60003779D1
公开(公告)日：2003-08-14
申请号：DE60003779
申请日：2000-09-04
申请人： HITACHI LTD
发明人： SHOJI HIROYUKI , MIYAZAKI HIDEKI , KOJIMA YASUYUKI , KAWABATA KENJI
IPC分类号： H05B41/24 , H02M7/538 , H05B37/02 , H05B41/282 , H05B41/392 , H05B41/00 , H05B41/295 , H02M5/458
摘要： A device for turning on light with a communication function comprises an inverter (5) generating a high-frequency current for a discharge tube (1); and a communication interface (2) communicating with external units via the lamp line (41), wherein said inverter (5) comprises driving circuit means (5a) for controlling the inverter based on a signal supplied from external sources, and wherein said communication interface (2) comprises filter means (2a) for extracting from the commercial AC voltage an analog signal including lighting control information superposed on the commercial AC voltage; means (2b-2d) for generating a digital control signal and sending information to said driving circuit means based on information from said filter means; and lighting control means (24) for sending the digital control signal to said driving circuit means.

8. 发明专利

CA2256906A1 PROTECTION APPARATUS FOR A STORAGE BATTERY 未知
公开(公告)号：CA2256906A1
公开(公告)日：1999-06-26
申请号：CA2256906
申请日：1998-12-22
申请人： HITACHI LTD
发明人： TAKANUMA AKIHIRO , AKIYAMA NOBORU , MIYAZAKI HIDEKI , EMORI AKIHIKO , MIYAMOTO YOSHIMI
IPC分类号： H01M2/12 , H01M2/34 , H01M6/50 , H01M10/052 , H01M10/0525 , H01M10/42 , H01M10/48 , H02H3/02 , H02H5/04 , H02H7/18 , H02J7/00
摘要： The present invention relates to a protection apparatus for a storage battery for storing and feeding power. The apparatus is comprised of an anomaly detection unit for detecting an anomalous state in at least one of the voltage, current flow, and frequency in at least one of the input power and the output power of the storage battery, the temperature and the pressure in the storage battery, and an external force applied to the storage battery. The apparatus further includes a short-circuit unit for shorting both electrodes of the storage battery when an anomaly is detected in at least one of the input power, the output power, and the storage battery.

9. 发明专利

DE4102574C2 未知
公开(公告)号：DE4102574C2
公开(公告)日：1996-06-05
申请号：DE4102574
申请日：1991-01-29
申请人： HITACHI LTD , HITACHI HARAMACHI SEMI CONDUCT
发明人： SAKURAI NAOKI , MORI MUTSUHIRO , ARAKAWA HIDETOSHI , ONDA KENICHI , MIYAZAKI HIDEKI , KANOUDA AKIHIKO
IPC分类号： H01L21/762 , H01L21/8249 , H01L27/06 , H01L29/06 , H01L29/739 , H01L29/872 , H02M7/00 , H02M7/5387 , H02P6/06 , H02P6/08 , H02P7/63

10. 发明专利

DE3870331D1 未知
公开(公告)号：DE3870331D1
公开(公告)日：1992-05-27
申请号：DE3870331
申请日：1988-06-29
申请人： HITACHI LTD
发明人： MIYAZAKI HIDEKI , ONDA KENICHI , MATSUDA YASUO
IPC分类号： H02M3/07
摘要： A power supply circuit comprises first charge storing means (1), second and third charge storing means (2, 3) supplying their charged voltages so as to be used as sources of predetermined voltages applied to associated loads (8-1, 8-2) respectively, switch means (5-1, 5-2) capable of selectively establishing at least a first mode and a second mode so that, in the first mode, the first and second charge storing means are connected in series with a d.c. power source (4) to be charged by a power supply voltage, while, in the second mode, the first charge storing means is electrically isolated from the d.c. power source and the second charge storing means, and the third charge storing means is connected to the first charge storing means in a closed circuit to be charged by the charges stored in the first charge storing means, and a drive circuit driving the switch means so that the switch means repeats an operation cycle including at least the first mode and the second mode executed in that order.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式