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1. 发明专利

JP2004282952A Power supply unit 有权
公开(公告)号：JP2004282952A
公开(公告)日：2004-10-07
申请号：JP2003073842
申请日：2003-03-18
申请人： Matsushita Electric Ind Co Ltd , 松下電器産業株式会社
发明人： SEKO HISATAKA , HASHIMOTO FUMIAKI
IPC分类号： H05K1/18 , H02M3/00 , H05K7/14
摘要： PROBLEM TO BE SOLVED: To solve the problem that a switching power module is mainly mounted on a substrate serving as a mother board and commands most of the area of the substrate.
SOLUTION: This power supply unit is disposed with the substrate 2 serving as the mother board on the switching power module 1 and is constituted so that a discrete electronic part 3 may be mounted without being influenced by the switching power module 1. With this constitution, the electronic part can be mounted on the substrate with high efficiency and downsized for easy handling.
COPYRIGHT: (C)2005,JPO&NCIPI

2. 发明专利

JP2004254397A Module component 有权
公开(公告)号：JP2004254397A
公开(公告)日：2004-09-09
申请号：JP2003041105
申请日：2003-02-19
申请人： Matsushita Electric Ind Co Ltd , 松下電器産業株式会社
发明人： SEKO HISATAKA , HASHIMOTO FUMIAKI , SUZUKI MICHIYA , MAEDA TAKESHI
IPC分类号： H02M3/00
摘要： PROBLEM TO BE SOLVED: To provide a module component for a switching power supply with high heat radiation using resin, capable of attaining reduction in material cost and man-hours by using a sealant without using a sealing plate as a means for preventing resin leakage.
SOLUTION: This module component for a switching power supply is structured so as not to leak a filling material by using a sealant for preventing resin leakage, without using a sealing plate for preventing resin leakage. By this constitution, the use of the sealing plate for preventing resin leakage can be eliminated, thus providing cost reduction. It is also possible to obtain the module component for the switching power supply capable of improving workability.
COPYRIGHT: (C)2004,JPO&NCIPI

3. 发明专利

JP2005278400A Power supply device 有权
标题翻译：电源设备
公开(公告)号：JP2005278400A
公开(公告)日：2005-10-06
申请号：JP2005169159
申请日：2005-06-09
申请人： Matsushita Electric Ind Co Ltd , 松下電器産業株式会社
发明人： OKURA HIDEKI , ONO MAKOTO , TSUJIMOTO ETSUO , HASHIMOTO FUMIAKI
IPC分类号： H02J17/00 , H02M3/28
摘要： PROBLEM TO BE SOLVED: To realize an inexpensive and highly reliable power supply device regarding the power supply device for small-sized electronic equipment.
SOLUTION: The power supply device has a primary side resonant capacitor 75 connected to both ends of a primary side coil 74, a secondary side resonant capacitor 78 connected to both ends of a secondary side coil 77, a series circuit of an impedance variable circuit 79, and an output detecting means 82 for detecting the output by the secondary side coil 77. When the impedance variable circuit 79 is controlled by the output of the output detecting means 82, the resonant frequency of the primary side resonant capacitor 75 and that of the secondary side resonant capacitor 78 are made almost equal. Consequently, it is possible to realize the highly reliable power supply device which does not require a conventional high withstand voltage diode and prevents the occurrence of a reverse leak current.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了实现关于小型电子设备的电源装置的便宜且高可靠性的电源装置。解决方案：电源装置具有连接到初级侧线圈74的两端的初级侧谐振电容器75，连接到次级侧线圈77的两端的次级侧谐振电容器78，阻抗的串联电路可变电路79和用于检测次级侧线圈77的输出的输出检测装置82.当阻抗可变电路79由输出检测装置82的输出控制时，初级侧谐振电容器75的谐振频率和次级侧谐振电容器78的数量几乎相等。因此，可以实现不需要常规高耐压二极管的高可靠性电源装置，并且防止发生反向泄漏电流。版权所有（C）2006，JPO＆NCIPI

4. 发明专利

JPH10135054A CHOKE COIL AND SWITCHING POWER SUPPLY USING THE SAME 失效
公开(公告)号：JPH10135054A
公开(公告)日：1998-05-22
申请号：JP28634296
申请日：1996-10-29
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： NAKAJIMA KOJI , NAKADA TOSHIYUKI , TAKAGI KIYOSHI , HASHIMOTO FUMIAKI
IPC分类号： H01F27/28 , H01F27/24 , H01F37/00 , H02M3/00
摘要： PROBLEM TO BE SOLVED: To provide a choke coil having a DC superposition characteristic, enabling low noise concerning a choke coil for a switching power supply used for various electronic device. SOLUTION: A winding 2 is wound around the central leg 1b of an EE-type or EI-type closed magnetic circuit core, and a half turn more is wound around the outer leg 1c as the winding 2, and the central leg 1b with the winding 2 wound around it is provided with a magnetic gap 3 to increase the inductance at a small current level. This offers improvement of current waves at a small current level, reduction of high-frequency ripples, and also reduction of magnetic leakage to the outside, due to the magnetic gap 3 of the core to enable providing a choke coil having a good DC superposition characteristic and low noise.

5. 发明专利

JP2002033558A CIRCUIT BOARD AND ITS MANUFACTURING METHOD 失效
公开(公告)号：JP2002033558A
公开(公告)日：2002-01-31
申请号：JP2000216932
申请日：2000-07-18
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： SUZUMURA MASAKI , HASHIMOTO FUMIAKI
IPC分类号： H05K7/20 , H01L23/12 , H05K1/02 , H05K1/03 , H05K1/05 , H05K3/04 , H05K3/20 , H05K3/28 , H05K3/38
摘要： PROBLEM TO BE SOLVED: To increase the heat radiation effect as to a circuit board on which many electronic components are closely packed and its manufacturing method. SOLUTION: A sheet 1 contains a 70 to 95 wt.pts. inorganic filler having electric insulation and superior heat conduction characteristics, a 4.9 to 28 wt.pts. thermosetting resin thermosetting resin composition containing a curing agent and a curing accelerator, and a sheet 1 including a 0.1 to 2 wt.pts. solvent and flexible before curing, and a lead frame 3 which forms a wire, are laminated and thermally pressed at low temperature. The lead frame 3 and sheet 1 are integrally molded, and then the lead frame 3 which is unnecessary for a circuit is punched together with the sheet 1. Moreover, the punched material is further compressed at higher temperature to mold integrally.

6. 发明专利

JPH0974748A SWITCHING POWER SUPPLY DEVICE 失效
公开(公告)号：JPH0974748A
公开(公告)日：1997-03-18
申请号：JP22619295
申请日：1995-09-04
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： HASHIMOTO FUMIAKI , MORI YOSHIHIRO
IPC分类号： H02M3/28
摘要： PROBLEM TO BE SOLVED: To supply a switching power supply device with constant-current output characteristics for reducing cost and size by eliminating the need for a secondary output current error detection circuit and making equal output constant-current characteristics and eddy current protection characteristics. SOLUTION: A switching element 1 and a current detection circuit 10 for converting current flowing through the switching element 1 and for outputting it are connected in series via a primary winding 2a of a transformer 2. Further, the output of the current detection circuit 10 is connected to the first input terminal of a comparator 9a and a serially-connected circuit of a diode and a capacitor is connected in parallel between the output of an output voltage monitoring circuit 14 for converting a voltage obtained by rectifying and smoothing a second primary winding 2b of the transformer 2 where a voltage proportional to the secondary winding voltage 2c of the transformer 2 is generated and the primary winding 2b of the transformer 2 at the second input terminal of the above comparator 9a.

7. 发明专利

JPH0787682A BATTERY CHARGER 失效
公开(公告)号：JPH0787682A
公开(公告)日：1995-03-31
申请号：JP23290793
申请日：1993-09-20
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： NISHIDE TAKUYA , TANIGUCHI TOSHIYUKI , HASHIMOTO FUMIAKI
IPC分类号： G05F1/56 , H02J7/10 , H02J7/34 , H02M3/28
摘要： PURPOSE:To achieve battery charging where current can be set accurately and arbitrarily by automatically cancelling the input offset voltage of an output current output circuit for detecting and controlling the output current of a switching regulator. CONSTITUTION:A DC voltage is added to the primary coil winding of a transformer 3 via a converter circuit 4 which is switched and a switching regulator 17 is configured so that the switching pulse width of the converter 4 can be controlled. The output voltage of the switching regulator 17 is detected and the data sent to a D/A converter 33 are controlled according to the data value which is obtained by an A/D converter 25.

8. 发明专利

JPH04233318A DRIVING CIRCUIT AND SWITCHING POWER UNIT USING THE SAME CIRCUIT 失效
公开(公告)号：JPH04233318A
公开(公告)日：1992-08-21
申请号：JP40898390
申请日：1990-12-28
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： HASHIMOTO FUMIAKI
IPC分类号： H02M3/155 , H03K17/687
摘要： PURPOSE:To obtain the driving circuit for reducing a control delay time and the switching loss of a main switching element, and the switching power unit which can be miniaturized and can obtain large power owing to the use of high efficiency and high frequency. CONSTITUTION:Two pieces of bipolar transistors 41, 42 which are controlled by an output of a pulse width control circuit 2 for stabilizing an output and repeat alternately turn-on/turn-off are provided, and to a field effect transistor 5 subjected to turn-on/turn-off control by said bipolar transistors 41, 42, an inductance element 44 is connected through the bipolar transistor 42, a control delay time can be shortened and a switching loss can be reduced, and a switching power unit can be miniaturized and can obtain large power owing to the use of high efficiency and high frequency.

9. 发明专利

JPH10271814A SWITCHING POWER SUPPLY 失效
公开(公告)号：JPH10271814A
公开(公告)日：1998-10-09
申请号：JP6764897
申请日：1997-03-21
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： HASHIMOTO FUMIAKI
IPC分类号： H02M3/155
摘要： PROBLEM TO BE SOLVED: To stabilize the uncontrolled output of a switching power supply used for various electronic apparatus. SOLUTION: This device is provided with a third rectifier means 11 to which a second series circuit comprising another choke coil 10 and a second filter capacitor 7 is connected parallel to the second winding 3b side of a transformer 3, and a third series circuit which comprises the third rectifier means 11 and the second rectifier means connected to the winding 3b. Then, the connection point of a first winding 3a to a first filter capacitor is used as a first output, while the connection point of the other choke coil 10 to the second filter capacitor 7 is used as an uncontrolled second output, so that power can be supplied to the second output without being affected by the power supply operation by the controlled first output.

10. 发明专利

JPH03230754A SWITCHING POWER SUPPLY DEVICE 失效
公开(公告)号：JPH03230754A
公开(公告)日：1991-10-14
申请号：JP2538390
申请日：1990-02-05
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： HASHIMOTO FUMIAKI
IPC分类号： H02M3/28 , H02M3/338
摘要： PURPOSE:To reduce loss and enlarge output and make it into high frequency by changing the period when output voltage is applied to the secondary winding of a transformer by means of the switching means connected to the secondary winding of the transformer so as to control output voltage. CONSTITUTION:An FET 3 and a synchronous oscillating circuit 4 are provided on the primary side of a transformer 2, and an FET and a control circuit 7 are provide on the secondary side. The synchronous oscillating circuit 4 operates the FET 3 for the specified on period. The FET 5 comprises a channel 5b and a parasitic diode 5a. During the off period of the FET 3, the energy of the transformer 2 is discharged from a parasitic diode 5a to a smoothing capacitor 6 through a secondary winding 2c. After discharge, a secondary current flows from the smoothing capacitor 6 reversely to the transformer 2 through the channel 5b of the FET 5. This reverse flow period is controlled by a control circuit 7.

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