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1. 发明专利

JP2001243871A FUSE DEVICE 失效
公开(公告)号：JP2001243871A
公开(公告)日：2001-09-07
申请号：JP2000051339
申请日：2000-02-28
申请人： DAITO COMM APPARATUS CO LTD , NIPPON TELEGRAPH & TELEPHONE , SHINDENGEN ELECTRIC MFG , ORIGIN ELECTRIC
发明人： SATO HIROMI , HIROSE KEIICHI , YAMAZAKI MIKIO , MACHIDA KENGO , UENO SHINGO
IPC分类号： H01H85/30 , H01H85/045 , H01H85/11 , H01H85/143 , H01H85/175 , H01H85/20 , H01H85/36 , H01H85/48
摘要： PROBLEM TO BE SOLVED: To provide an accurately, positively and easily replaceable fuse device. SOLUTION: A hollow case body 21 is provided with a seeing-through display window 42. A fixed terminal 66 is provided, part of which is located in the case body 21. One end of a fusible body 76 fusible with an overcurrent is connected to a fixed terminal 66. A movable terminal 71, part of which is located in the case body 21, is tensely energized and connected to the other end of the fusible body 76. With the fusion of the fusible body 76, a fusion display portion 75 of the movable terminal 71 is moved to the display window 42. The fusion of the fusible body 76 can be identified from the outside via the display window 42 by the existence of the fusion display portion 75.

2. 发明专利

JP2003235266A THREE-PHASE FULL-WAVE RECTIFIER 审中-公开
公开(公告)号：JP2003235266A
公开(公告)日：2003-08-22
申请号：JP2002032984
申请日：2002-02-08
申请人： ORIGIN ELECTRIC , NTT POWER & BUILDING , SHINDENGEN ELECTRIC MFG , SANKEN ELECTRIC CO LTD
发明人： SUZUKI YOSHIO , KOGURE KATSUMI , MURASE MASATOSHI , MACHIDA KENGO , MURAKAWA HIROYA
IPC分类号： H02M7/12
摘要： PROBLEM TO BE SOLVED: To provide a three-phase full-wave rectifier having an open-phase detecting circuit capable of detecting an open-phase state in a primary side of a step-down transformer in a three-phase alternating current. SOLUTION: The three-phase full-wave rectifier is provided with a three-phase full-wave rectifier circuit for supplying alternating power obtained by full-wave- rectifying a three-phase alternating current input, a control circuit for controlling this, an open-phase detecting circuit for detecting the open-phase to provide a signal to the control circuit. The open-phase detecting circuit is provided with a three-phase bridge circuit 50 for full-wave-rectifying the three-phase alternating input, a voltage detecting circuit 80 for generating an energizing voltage when the voltage between output terminals of the circuit 50 is lower than the open-phase detecting voltage, a capacitor charging circuit 82 consisting of a resistor 40 having a charging time constant larger than a cycle of the three-phase alternating current and a capacitor 42 to charge the output of the circuit 50, and a photocoupler 44 for generating a signal indicating abnormality if the three-phase alternating current has an open-phase. COPYRIGHT: (C)2003,JPO

3. 发明专利

JP2002252982A MULTIPHASE RECTIFIER 失效
公开(公告)号：JP2002252982A
公开(公告)日：2002-09-06
申请号：JP2001047847
申请日：2001-02-23
申请人： SHINDENGEN ELECTRIC MFG
发明人： HAGA HIROYUKI , MACHIDA KENGO
IPC分类号： H02M7/12
摘要： PROBLEM TO BE SOLVED: To eliminate the effect of the secular change of a photo coupler current transfer rate and transfer control signals, using less number of items, in an insulated manner. SOLUTION: DC signals are first converted into PWM(pulse width modulation) signals, which are transmitted in an insulated state by a photocoupler. The transmitted signals are then smoothed and are reinstated as DC signals. In this manner, the information transmitted by the photocoupler takes the form of digital information expressed by on/off switching, so that the problem of signals being not common, due to the secular change of the current transmission rate, can be solved.

4. 发明专利

JPH09308242A SWITCHING POWER SUPPLY 失效
公开(公告)号：JPH09308242A
公开(公告)日：1997-11-28
申请号：JP13746796
申请日：1996-05-07
申请人： SHINDENGEN ELECTRIC MFG
发明人： MACHIDA KENGO , OSHIKATA TETSUYA
IPC分类号： H02M7/217 , H02M3/28 , H02M7/06 , H02M7/12
摘要： PROBLEM TO BE SOLVED: To provide a small switching power supply with high power factor and high efficiency by making it possible to set a smoothing capacitor at low voltage even under conditions of a high input voltage or a small load. SOLUTION: In a switching power supply, a smoothing capacitor 32 is connected across output terminals of a full-wave rectifier 21 that is connected to an AC power supply 20. A serial circuit made up of a primary winding 28 of a transformer and a switching element 33 is connected across terminals of the smoothing capacitor 32. A serial circuit made up of an inductor 26, a capacitor 39, and a control winding 31 is connected to a point between the full-wave rectifier 21 and the smoothing capacitor 32. A rectifying smoothing circuit 34 is connected to a secondary winding 29. A load 3 is connected to the output side of the rectifying smoothing circuit 34, while a control circuit 40 for controlling the switching circuit 33 is provided. The control circuit 40 includes a smoothing capacitor voltage detecting unit 53 and a frequency modulation circuit 60 to keep the smoothing capacitor 32 at a prescribed voltage under control.

5. 发明专利

JPH09298360A CONNECTION METHOD FOR COMPOSITE PRINTED-CIRCUIT BOARD 失效
公开(公告)号：JPH09298360A
公开(公告)日：1997-11-18
申请号：JP13746696
申请日：1996-05-07
申请人： SHINDENGEN ELECTRIC MFG
发明人： OSHIKATA TETSUYA , MACHIDA KENGO
IPC分类号： H05K1/14 , H05K3/36
摘要： PROBLEM TO BE SOLVED: To provide a printed-circuit board in which a board can be fixed vertically, easily and firmly. SOLUTION: In a method, two printed-circuit boards 1, 3 which are provided with connecting terminal groups in peripheral parts and in which the connecting terminal groups are integrally formed by connectors 2, 4 are connected vertically. In the printed-circuit board 1 on one side, the connector 2 is connected to a board end part, and a protruding part 8 is provided in the same bottom side part as the printed-circuit board 1 on which the connector 2 is mounted. The printed-circuit board 3 on the other side is provided with a recessed part 9 to which the protruding part 8 at the circuit board on one side is fitted, and the connector part 4 which is connected electrically and mechanically to the connector 2 at the circuit board 1 on one side is mounted on the same straight line as the recessed part 9. When both connectors and the recessed and protruding parts 8, 9 at the printed-circuit board 1 on one side and the printed-circuit board 3 on the other side are fitted, the printed-circuit boards 1, 3 are connected firmly.

6. 发明专利

JP2004282936A Power supply device 审中-公开
公开(公告)号：JP2004282936A
公开(公告)日：2004-10-07
申请号：JP2003073160
申请日：2003-03-18
申请人： Shindengen Electric Mfg Co Ltd , 新電元工業株式会社
发明人： MACHIDA KENGO , GO EKITO
IPC分类号： H02H3/20 , H02M3/155
摘要： PROBLEM TO BE SOLVED: To provide a power supply device that can safely stop an electrolytic capacitor without causing the breakage of the electrolytic capacitor when an input voltage is excessively large. SOLUTION: The power supply device 1 is provided with the electrolytic capacitor C arranged at the DC side of the power supply device 1 in parallel with a load 20, and a protection means 10 that protects the electrolytic capacitor C when an excessively large voltage is inputted to an input of the power supply device 1. The protection device 10 comprises a monitoring circuit 16 that monitors a voltage of the electrolytic capacitor C, a comparator IC1 by which an output is inverted when the voltage of the electrolytic capacitor C reaches a set voltage or higher, a time circuit 17 that makes an output of the comparator IC1 have a time period, and an output circuit that outputs a signal having the time period provided by the time circuit 17 to a control circuit 11 that controls a main switch SW of the power supply device 1. The main switch SW is caused to short-circuit by giving an on-signal between an output of the control circuit 11 and a drive circuit 12, thus stopping the feed of power to the load 20. COPYRIGHT: (C)2005,JPO&NCIPI

7. 发明专利

JP2003274645A Control circuit of power supply with high power factor and power supply provided therewith 有权
标题翻译：具有高功率因数和电源供电的电源控制电路
公开(公告)号：JP2003274645A
公开(公告)日：2003-09-26
申请号：JP2002067261
申请日：2002-03-12
申请人： Shindengen Electric Mfg Co Ltd , 新電元工業株式会社
发明人： NUKUI YASUYUKI , MACHIDA KENGO
IPC分类号： H02M7/12 , H02M3/155
摘要： PROBLEM TO BE SOLVED: To provide a novel control circuit of a power supply with high power factor which is capable of controlling transitional fluctuations of an output voltage in response to rapid change in input power supply and rapid change in load and a power supply provided therewith.
SOLUTION: A control circuit of a power supply with high power factor supplies stabilized DC voltage to an output with AC power supply 1 serving as an input, and makes input current a pattern of wave form which is close to sine wave. The control circuit includes a first error amplification circuit 11 for amplifying a deviation between a first reference voltage and a detection voltage, a second error amplification circuit 13 for amplifying a deviation between a reference current and a detection current formed by an output of the above first error amplification circuit 11 and an input detection voltage, characterized in that, it is configured such that a deviation of voltage by a third error amplification circuit 21 may be added to the reference circuit of the second error amplification circuit 13, when a detection voltage at an output side decreases down to a second reference voltage or below, thereby inhibiting the drop of an output voltage.
COPYRIGHT: (C)2003,JPO
摘要翻译：要解决的问题：提供具有高功率因数的电源的新型控制电路，其能够响应于输入电源的快速变化和负载的快速变化以及功率来控制输出电压的过渡波动供应。解决方案：具有高功率因数的电源的控制电路以交流电源1作为输入将稳定的直流电压提供给输出，并且使输入电流成为接近正弦波的波形图案。控制电路包括用于放大第一参考电压和检测电压之间的偏差的第一误差放大电路11，用于放大参考电流与由上述第一参考电压的输出形成的检测电流之间的偏差的第二误差放大电路13 误差放大电路11和输入检测电压，其特征在于，将第三误差放大电路21的电压偏差加到第二误差放大电路13的基准电路上时，检测电压输出侧减小到第二参考电压或更低，从而抑制输出电压的下降。版权所有（C）2003，JPO

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