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1. 发明专利

JPH0866038A SWITCHING POWER SUPPLY 失效
公开(公告)号：JPH0866038A
公开(公告)日：1996-03-08
申请号：JP22087294
申请日：1994-08-24
申请人： SHINDENGEN ELECTRIC MFG
发明人： OSHIKATA TETSUYA , WATANABE HARUO
IPC分类号： H02M7/217 , H02M3/28 , H02M7/06 , H02M7/12
摘要： PURPOSE: To obtain an AC input switching power supply with a high output and a high efficiency by providing a series circuit of an inductor and a diode between a full-wave rectifier and a smoothening capacitor and a series circuit of a control winding of a transformer and a capacitor between a connecting point from an inductor to a diode and a full-wave rectifier. CONSTITUTION: A series circuit of an inductor 26 and a diode 27 is provided between one of output ends of a full-wave rectifier 21 and a smoothening capacitor 28, and a series circuit of a capacitor 34 and a control winding 32 of a transformer 29 between a connecting points from the inductor 26 to the diode 27 and other output end of the full-wave rectifier 21. By doing this, an exciting current of the transformer 29 returns from the control winding 32 of the transformer 29 to the control winding 32, thereby decreasing the voltage of the capacitor 34, and the current of inductor 26 flows easily when the switching element 33 has turned on. In this way, a specific current flows to the inductor 26 relative to an input voltage Vin and its current value Iin increases as the input voltage Vin becomes higher thereby improving the power factor.

2. 发明专利

JP2013078228A Switching power-supply device 有权
标题翻译：切换电源设备
公开(公告)号：JP2013078228A
公开(公告)日：2013-04-25
申请号：JP2011217627
申请日：2011-09-30
申请人： Shindengen Electric Mfg Co Ltd , 新電元工業株式会社
发明人： OSHIKATA TETSUYA , MATSUDA YOSHIAKI
IPC分类号： H02M3/28
摘要： PROBLEM TO BE SOLVED: To achieve downsizing and low cost by reducing the number of components and simplifying a circuit configuration.SOLUTION: A switching power-supply device comprises: a rectifier circuit 1 rectifying an AC input voltage Vac; input capacitors 2 and 3; an inductor 4; an NMOS 5 on/off-operating by a control signal S1; an NMOS 6 on/off-operating by a control signal S2; an LLC resonant circuit 10; rectifier smoothing circuits 15 and 16; and control section 20 generating the control signals S1 and S2 on the basis of a voltage V3 of a node ND2 and a DC output voltage Vo. The switching power-supply device switches the NMOSs 5 and 6 by using the common control section 20 and performs frequency control for the LLC resonant circuit 10 and PWM control for a PFC.
摘要翻译：要解决的问题：通过减少部件数量和简化电路配置来实现小型化和低成本。解决方案：开关电源装置包括：整流电路1整流交流输入电压Vac; 输入电容器2和3; 电感器4; NMOS 5通过控制信号S1进行开/关操作; 由控制信号S2开/关的NMOS6; LLC谐振电路10; 整流平滑电路15和16; 以及基于节点ND2的电压V3和直流输出电压Vo产生控制信号S1和S2的控制部分20。开关电源装置通过使用公共控制部分20来切换NMOS5和6，并且执行LLC谐振电路10的频率控制和PFC的PWM控制。版权所有（C）2013，JPO＆INPIT

3. 发明专利

JPH11275866A Control method of three-phase rectifier power factor improving circuit 失效
标题翻译：三相整流器功率因数改善电路的控制方法
公开(公告)号：JPH11275866A
公开(公告)日：1999-10-08
申请号：JP9666898
申请日：1998-03-25
申请人： Shindengen Electric Mfg Co Ltd , 新電元工業株式会社
发明人： OSHIKATA TETSUYA
IPC分类号： H02J1/00 , H02J1/02 , H02M7/12 , H02M7/219
CPC分类号： Y02P80/112
摘要： PROBLEM TO BE SOLVED: To attain stable operation of a three-phase rectifier, by changing the dead time of control pulses of control elements on positive and negative potential sides of respective arms, based on input phase voltage.
SOLUTION: A dead time duration computing circuit detects input phase voltage, computes desired dead time duration so as to meet the voltage value, generates a control pulse which has generated dead time based on computed results to supply to a drive circuit. Two control signals as a pair for controlling meet one control pulse, the other control pulse is inverted by an inverting circuit to be generated, and these control pulses are applied to a control element. The dead time of the control pulses of control elements on positive and negative potential sides of the respective arms can be changed with input phase voltage. It is thus possible to attain a three-phase rectifier power factor improving circuit which can prevent failures which are caused by simultaneous on-operations of the respective arms, and has few harmonic components.
COPYRIGHT: (C)1999,JPO
摘要翻译：要解决的问题：为了实现三相整流器的稳定运行，通过根据输入相电压改变控制元件在各臂的正负电位侧的控制脉冲的死区时间。解决方案：死区时间计算电路检测输入相电压，计算所需的死区持续时间以满足电压值，产生基于计算结果产生死区时间以供应给驱动电路的控制脉冲。作为控制对的两个控制信号满足一个控制脉冲，另一个控制脉冲由反相电路反相产生，并且这些控制脉冲被施加到控制元件。控制元件在相应臂的正和负电位侧的控制脉冲的死区时间可以用输入相电压来改变。因此，可以获得三相整流器功率因数改善电路，其能够防止由于各臂的同时接通操作引起的故障，并且谐波分量较少。

4. 发明专利

JP2019022396A 力率改善回路及び力率改善回路の制御方法有权
公开(公告)号：JP2019022396A
公开(公告)日：2019-02-07
申请号：JP2017141363
申请日：2017-07-20
申请人： SHINDENGEN ELECTRIC MFG
发明人： IWAO KENICHI , OSHIKATA TETSUYA , MURATA MASAAKI , SATO HIDEKI
IPC分类号： H02M7/12
摘要：【課題】ZVS動作が可能な力率改善回路を提供する。【解決手段】力率改善回路は、1以上の第1のアーム回路と、極性切り替えアームと、1以上の第2のアーム回路と、第1のノードと第2のノードとの間に接続された電流蓄積用インダクタと、第1から第6のスイッチ素子のスイッチング動作を制御する制御部と、を備える。制御部は、第1の入力端子に入力される入力電圧と閾値とを比較し、入力電圧が閾値よりも大きい場合には、第1のアーム回路と第2のアーム回路との間に位相差を設ける位相差制御を行い、入力電圧が閾値以下の場合には、第1のアーム回路と第2のアーム回路との間に位相差を設けない非位相差制御を行う。【選択図】図3

5. 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.

6. 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.

7. 发明专利

JPH0287967A DC-DC CONVERTER 失效
公开(公告)号：JPH0287967A
公开(公告)日：1990-03-28
申请号：JP23915988
申请日：1988-09-24
申请人： SHINDENGEN ELECTRIC MFG
发明人： OSHIKATA TETSUYA
IPC分类号： H02M3/28
摘要： PURPOSE:To improve the efficiency and to lower the noise through a simple circuitry by detecting the minimum point of voltage across a resonant capacitor, when it does not reach to 0V, and turning a main switching element OFF. CONSTITUTION:When the voltage Vc1 across a resonant capacitor c1 does not reach to 0V, minimum value of Vc1 is detected through a detector C and the detected signal is judged through a detection judging circuit D. A signal is fed from the circuit D to a drive circuit B, which then provides a signal for turning a main switching element Tr1 OFF. By such arrangement, switching loss is minimized, the efficiency is improved and the noise is lowered through a simple circuitry.

8. 发明专利

JP2015023606A 力率改善回路审中-公开
标题翻译：功率因数校正电路
公开(公告)号：JP2015023606A
公开(公告)日：2015-02-02
申请号：JP2013147940
申请日：2013-07-16
申请人：新電元工業株式会社 , Shindengen Electric Mfg Co Ltd
发明人： OSHIKATA TETSUYA , MATSUDA YOSHIAKI
IPC分类号： H02M7/12
CPC分类号： Y02P80/112
摘要：【課題】少ない部品で、ブリッジレスPFC回路のインターリーブ化と小型化を実現する。【解決手段】PFC回路は、入力端子12及び出力端子41間に接続されたMOSFET31と、入力端子12及び出力端子42間に接続されたMOSFET32と、第1アーム回路と、第2アーム回路と、出力端子41,42間に接続された出力コンデンサ37と、を備えている。前記第1アーム回路は、入力端子11及び接続点N11間に接続されたインダクタ21と、接続点N11及び出力端子41間に接続されたMOSFET33と、接続点N11及び出力端子42間に接続されたMOSFET34と、を有している。前記第2アーム回路は、入力端子11及び接続点N12間に接続されたインダクタ22と、接続点N12及び出力端子41間に接続されたMOSFET35と、接続点N12及び出力端子42間に接続されたMOSFET36と、を有している。【選択図】図1
摘要翻译：要解决的问题：实现具有少量组件的无桥PFC电路的交织和小型化。解决方案：PFC电路包括：连接在输入端子12和输出端子41之间的MOSFET31; 连接在输入端子12和输出端子42之间的MOSFET32; 第一臂电路; 第二臂电路; 连接在输出端子41和42之间的输出电容器37.第一臂电路具有连接在输入端子11和连接点N11之间的电感器21，连接在连接点N11和输出端子41之间的MOSFET33，以及连接在连接点N11和输出端子42之间的MOSFET 34.第二臂电路具有连接在输入端子11和连接点N12之间的电感器22，连接在连接点N12和输出端子41之间的MOSFET 35，连接在连接点N12和输出端子42之间的MOSFET 36。

9. 发明专利

JP2010171225A Transformer and switching power supply 审中-公开
标题翻译：变压器和开关电源
公开(公告)号：JP2010171225A
公开(公告)日：2010-08-05
申请号：JP2009012647
申请日：2009-01-23
申请人： Chiba Univ , Shindengen Electric Mfg Co Ltd , 国立大学法人千葉大学 , 新電元工業株式会社
发明人： WATANABE HARUO , UNNO HIROSHI , OSHIKATA TETSUYA , YUGAWA ITARU , SAOTOME HIDEO
IPC分类号： H01F30/00 , H01F27/24 , H02M3/28
摘要： PROBLEM TO BE SOLVED: To provide a transformer that reduces eddy current loss due to leakage flux although being thin to improve the power efficiency of a power supply, and a switching power supply. SOLUTION: The transformer has primary winding and secondary winding stacked spirally one over the other opposite each other, and is provided with magnetic legs made of magnetic bodies having smaller magnetic permeability than a magnetic body of a main magnetic circuit so as to obtain desired leakage inductance. COPYRIGHT: (C)2010,JPO&INPIT

10. 发明专利

JP2008306229A Common mode noise reducing circuit 审中-公开
标题翻译：共通模式噪声减少电路
公开(公告)号：JP2008306229A
公开(公告)日：2008-12-18
申请号：JP2007148713
申请日：2007-06-05
申请人： Shindengen Electric Mfg Co Ltd , 新電元工業株式会社
发明人： OSHIKATA TETSUYA
IPC分类号： H03H7/09 , H03H7/06
摘要： PROBLEM TO BE SOLVED: To provide a common mode noise reducing circuit minimizing common mode noise generated from a common mode current.
SOLUTION: The common mode noise reducing circuit having a primary winding Np and a secondary winding Ns for insulating primary and secondary sides includes a variable resistance RV in parallel to the primary winding, wherein the secondary wiring has a center tap 1, and a series circuit 2 of a resistance Rb and a capacitor Cb is connected between the center tap and the variable resistance RV, the resistance value of the variable resistance RV is varied to adjust balance of equivalent capacitance generated between the primary winding and secondary winding.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种使共模噪声降低电路最小化从共模电流产生的共模噪声。解决方案：具有初级绕组Np和用于绝缘初级和次级侧的次级绕组Ns的共模噪声降低电路包括与初级绕组并联的可变电阻RV，其中辅助布线具有中心抽头1，并且将电阻Rb和电容器Cb的串联电路2连接在中心抽头和可变电阻RV之间，改变可变电阻RV的电阻值，以调整在初级绕组和次级绕组之间产生的等效电容的平衡。版权所有（C）2009，JPO＆INPIT

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