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    • 4. 发明专利
    • Power supply device
    • 电源设备
    • JP2012029387A
    • 2012-02-09
    • JP2010163544
    • 2010-07-21
    • Sharp Corpシャープ株式会社
    • NOMURA MASARUSHIOMI TAKESHI
    • H02M3/155
    • H02M3/155H02M2001/0048Y02B70/1491
    • PROBLEM TO BE SOLVED: To provide a power supply device that reduces costs and improves power conversion efficiency.SOLUTION: In a power supply device, a step-up power supply circuit 10 includes an inductor L10 whose one end is connected to the positive side of a power supply 11, a diode D10 whose cathode is connected to the other end of the inductor L10 and whose anode is connected to the positive side of a load R10, a N-channel type MOSFET Q10 whose drain is connected to the cathode of the diode D10 and whose source is connected to a ground GND, a control circuit 12 connected to the gate of the MOSFET Q10, a capacitor C10 connected between the anode of the diode D10 and the ground GND, a diode D11 whose cathode is connected to one end of the inductor L10, and resistance R11 connected to the anode of the diode D11 and the positive side of the load R10.
    • 要解决的问题:提供降低成本并提高功率转换效率的电源装置。 解决方案:在电源装置中,升压电源电路10包括其一端连接到电源11的正极的电感器L10,其阴极连接到电源11的另一端的二极管D10 电感器L10并且其阳极连接到负载R10的正极侧,N沟道型MOSFET Q10的漏极连接到二极管D10的阴极并且其源极连接到地GND,控制电路12连接 连接到二极管D10的阳极和地GND之间的电容器C10,连接到电感器L10的一端的二极管D11和连接到二极管D11的阳极的电阻R11连接到MOSFET Q10的栅极 和负载R10的正极侧。 版权所有(C)2012,JPO&INPIT
    • 6. 发明专利
    • Parallel drive power supply
    • 并联驱动电源
    • JP2011024305A
    • 2011-02-03
    • JP2009165422
    • 2009-07-14
    • Sharp Corpシャープ株式会社
    • SATO KATSUHIKOICHIKAWA YUJINOMURA MASARU
    • H02M3/155
    • PROBLEM TO BE SOLVED: To reduce fluctuation in output voltage when switching converters are switched according to an output power.
      SOLUTION: When the output current is lower than a switching current value, a power supply 1 starts driving of a first switching converter 3. When the output current thereafter becomes higher than a value smaller than the switching current value, the power supply 1 starts driving a second switching converter 4 and then stops driving the first switching converter 3. When driving the first switching converter 3 and the second switching converter 4 is started or stopped, the duty ratio of MOSFET Q1 or MOSFET Q1 is not rapidly changed but it is gently changed by varying its value more than once.
      COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:为了减少根据输出功率切换转换器时的输出电压的波动。 解决方案:当输出电流低于开关电流值时,电源1开始驱动第一开关转换器3.当其后的输出电流高于小于开关电流值的值时,电源 1开始驱动第二开关转换器4,然后停止驱动第一开关转换器3.当驱动第一开关转换器3和第二开关转换器4启动或停止时,MOSFET Q1或MOSFET Q1的占空比不会迅速改变, 它通过不止一次地改变它的值来轻轻地改变。 版权所有(C)2011,JPO&INPIT
    • 8. 发明专利
    • Dc-dc converter, and solar power controller and moving body using the same
    • DC-DC转换器和太阳能电力控制器以及使用其的移动体
    • JP2014075956A
    • 2014-04-24
    • JP2012223446
    • 2012-10-05
    • Sharp Corpシャープ株式会社
    • KOMIYA KENJISHIOMI TAKESHINOMURA MASARUSHIBATA AKIHIDEIWATA HIROSHI
    • H02M3/28
    • H02M3/33592H02M1/088Y02B70/1475
    • PROBLEM TO BE SOLVED: To provide a high-efficiency DC-DC converter.SOLUTION: The DC-DC converter includes a transformer, a switching circuit provided on the primary side of the transformer, and a rectifier circuit provided on the secondary side of the transformer. The rectifier circuit includes a first rectification section that is a series connection body of a first transistor and a second transistor in which a first electrode is connected to a second electrode of the first transistor. Each of the first and second transistors has a parasitic diode connected in the forward direction between the second and first electrodes. The withstand voltage between the first and second electrodes of the first transistor is higher than that between the first and second electrodes of the second transistor.
    • 要解决的问题:提供一种高效率的DC-DC转换器。解决方案:DC-DC转换器包括变压器,设置在变压器的初级侧的开关电路和设置在变压器次级侧的整流电路 变压器。 整流电路包括:第一整流部,其是第一晶体管和第二晶体管的串联连接体,其中第一电极连接到第一晶体管的第二电极。 第一和第二晶体管中的每一个具有在第二和第一电极之间沿正向连接的寄生二极管。 第一晶体管的第一和第二电极之间的耐电压高于第二晶体管的第一和第二电极之间的耐受电压。
    • 9. 发明专利
    • Solar charge system and mobile body
    • 太阳能充电系统和移动体
    • JP2014018019A
    • 2014-01-30
    • JP2012155296
    • 2012-07-11
    • Sharp Corpシャープ株式会社
    • KOMIYA KENJIYAOI YOSHIFUMIADACHI KOICHIRONOMURA MASARUOTA YOSHIJIIWATA HIROSHI
    • H02J7/35B60L8/00B60L11/18G05F1/67H02J7/00H02M3/28
    • Y02T10/7005Y02T10/7083Y02T10/7216Y02T10/92Y02T90/127
    • PROBLEM TO BE SOLVED: To provide a solar charge system capable of implementing high efficiency.SOLUTION: A solar charge system comprises: a solar cell; an MPPT for controlling an operating point of the solar cell in order to maximize generation power of the solar cell; first and second power storage devices; a plurality of both-way DC-DC converters for transmitting power between the first and second power storage devices; and a control unit for controlling the number of operating ones of the plurality of both-way DC-DC converters. An output end of the solar cell is connected to an input end of the MPPT; and an output end of the MPPT is connected to the first power storage device. Each first input/output terminal of the plurality of both-way DC-DC converters is connected to the first power storage device; and each second input/output terminal of the plurality of both-way DC-DC converters is connected to the second power storage device.
    • 要解决的问题:提供能够实现高效率的太阳能充电系统。解决方案:太阳能充电系统包括:太阳能电池; 用于控制太阳能电池的工作点的MPPT,以便最大化太阳能电池的发电功率; 第一和第二蓄电装置; 多个用于在第一和第二蓄电装置之间传输电力的双向DC-DC转换器; 以及控制单元,用于控制多个双向DC-DC转换器中的操作数量。 太阳能电池的输出端连接到MPPT的输入端; 并且MPPT的输出端连接到第一蓄电装置。 多个双向DC-DC转换器的每个第一输入/输出端子连接到第一蓄电装置; 并且所述多个双向DC-DC转换器的每个第二输入/输出端子连接到所述第二蓄电装置。