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    • 4. 发明授权
    • Switching power supply apparatus and electronic device using the same
    • 开关电源装置及使用其的电子装置
    • US07351931B2
    • 2008-04-01
    • US10549927
    • 2005-02-02
    • Koji YoshidaMitsuhiro MatsuoYoshihiro Takeshima
    • Koji YoshidaMitsuhiro MatsuoYoshihiro Takeshima
    • B23K9/095
    • H02M3/3376H01F27/2804H01F2017/002H02M3/285H02M2001/0074
    • Provided is a switching power supply unit which uses a multilayer board or a stack of planar conductors as the windings of transformers so as to reduce the volume of the transformers and to have high efficiency, small size and small noise. The switching power supply unit is formed by connecting a plurality of capacitors (23), (24), (25) and (26) connected in series with each other to input terminals (22a) and (22b) of a plurality of switching power supplies having switching elements (27), (28), (29) and (30), transformers (31) and (32), and rectifiers (33), (34), (37) and (38). The switching power supply unit inputs the voltages of capacitors (23)-(26), and outputs the respective voltages developed by the plurality of switching power supplies together to common output terminals (40a) and (40b). The transformers (31) and (32) are each composed of windings made up of a stack of planar conductor coils. This structure can reduce noise transmission through the windings, thereby providing stable output characteristics.
    • 提供了一种开关电源单元,其使用多层板或叠层的平面导体作为变压器的绕组,以便减小变压器的体积并且具有高效率,小尺寸和小的噪声。 开关电源单元通过将彼此串联连接的多个电容器(23),(24),(25)和(26)连接到多个电容器的输入端子(22A)和(22b) 具有开关元件(27),(28),(29)和(30),变压器(31)和(32)以及整流器(33),(34),(37)和(38)的开关电源。 开关电源单元输入电容器(23) - (26)的电压,并将由多个开关电源产生的各个电压一起输出到公共输出端子(40a)和(40a)。 变压器(31)和(32)各自由由平面导体线圈堆叠构成的绕组构成。 这种结构可以减少通过绕组的噪声传输,从而提供稳定的输出特性。
    • 5. 发明授权
    • Switching power supply
    • 开关电源
    • US07400519B2
    • 2008-07-15
    • US10520984
    • 2003-08-11
    • Koji YoshidaMitsuhiro MatsuoSatoshi IkedaYoshihiro Takeshima
    • Koji YoshidaMitsuhiro MatsuoSatoshi IkedaYoshihiro Takeshima
    • H02M7/217H02M3/335
    • H02M3/33592Y02B70/1475
    • A switching power supply comprises one or more switching sections which repeat ON/OFF operation, a transformer having a primary winding and a secondary winding, a synchronous rectifier section for rectifying a voltage induced in the secondary winding when an input voltage is applied to the primary winding of the transformer by the switching section, a smoothing section for smoothing the voltage rectified by the synchronous rectifier section to obtain an output voltage, a PWM control circuit which generates a PWM signal for adjusting the output voltage to determine an ON/OFF ratio of the switching section, and a drive transformer for ON-OFF driving the synchronous rectifier section according to the PWM signal, and is configured so as to use the energy stored in the drive transformer or the transformer for the ON/OFF operation of the synchronous rectifier section.
    • 开关电源包括重复ON / OFF操作的一个或多个开关部分,具有初级绕组和次级绕组的变压器,当对初级绕组施加输入电压时,用于对次级绕组中感应出的电压进行整流的同步整流器部分 通过切换部分对变压器进行绕组,平滑部分,用于平滑由同步整流部分整流的电压以获得输出电压; PWM控制电路,其生成用于调节输出电压的PWM信号以确定ON / OFF比 开关部和用于根据PWM信号驱动同步整流部的ON-OFF的驱动变压器,并且被配置为使用存储在驱动变压器或变压器中的能量进行同步整流器的导通/截止操作 部分。
    • 6. 发明申请
    • Switching power supply apparatus and electronic device using the same
    • 开关电源装置及使用其的电子装置
    • US20060181252A1
    • 2006-08-17
    • US10549927
    • 2005-02-02
    • Koji YoshidaMitsuhiro MatsuoYoshihiro Takeshima
    • Koji YoshidaMitsuhiro MatsuoYoshihiro Takeshima
    • G05F1/12G05F1/46
    • H02M3/3376H01F27/2804H01F2017/002H02M3/285H02M2001/0074
    • Provided is a switching power supply unit which uses a multilayer board or a stack of planar conductors as the windings of transformers so as to reduce the volume of the transformers and to have high efficiency, small size and small noise. The switching power supply unit is formed by connecting a plurality of capacitors (23), (24), (25) and (26) connected in series with each other to input terminals (22a) and (22b) of a plurality of switching power supplies having switching elements (27), (28), (29) and (30), transformers (31) and (32), and rectifiers (33), (34), (37) and (38). The switching power supply unit inputs the voltages of capacitors (23)-(26), and outputs the respective voltages developed by the plurality of switching power supplies together to common output terminals (40a) and (40b). The transformers (31) and (32) are each composed of windings made up of a stack of planar conductor coils. This structure can reduce noise transmission through the windings, thereby providing stable output characteristics.
    • 提供了一种开关电源单元,其使用多层板或叠层的平面导体作为变压器的绕组,以便减小变压器的体积并且具有高效率,小尺寸和小的噪声。 开关电源单元通过将彼此串联连接的多个电容器(23),(24),(25)和(26)连接到多个电容器的输入端子(22A)和(22b) 具有开关元件(27),(28),(29)和(30),变压器(31)和(32)以及整流器(33),(34),(37)和(38)的开关电源。 开关电源单元输入电容器(23) - (26)的电压,并将由多个开关电源产生的各个电压一起输出到公共输出端子(40a)和(40a)。 变压器(31)和(32)各自由由平面导体线圈堆叠构成的绕组构成。 这种结构可以减少通过绕组的噪声传输,从而提供稳定的输出特性。
    • 7. 发明授权
    • Switching power supply device
    • 开关电源装置
    • US06972656B2
    • 2005-12-06
    • US10639197
    • 2003-08-11
    • Yoshihiro TakeshimaKoji YoshidaSatoshi IkedaMitsuhiro Matsuo
    • Yoshihiro TakeshimaKoji YoshidaSatoshi IkedaMitsuhiro Matsuo
    • H02M3/337H01F27/28
    • H02M3/3376
    • A switching power supply device of the present invention comprises a transformer having at least a first primary coil, a first secondary coil, a second secondary coil, a second primary coil, and laminated in the sequence of the first primary coil, the first secondary coil, the second secondary coil, the second primary coil, and having a configuration wherein a center tap is drawn out from a connecting part between one end of said first secondary coil and one end of said second secondary coil; a switching part for alternately applying a voltage in a forward direction and an inverse direction to said transformer; a rectifying part for rectifying the voltage induced across the center tap of the transformer and the other end of the first secondary coil or the other end of the second secondary coil; a smoothing part for smoothing the voltage of the rectifying part; and a control part for controlling the on-off of the switching part so that the output voltage becomes stable.
    • 本发明的开关电源装置包括具有至少第一初级线圈,第一次级线圈,第二次级线圈,第二初级线圈并按照第一初级线圈的顺序层叠的变压器,第一次级线圈 第二次级线圈和第二初级线圈,并且具有其中中心抽头从所述第一次级线圈的一端和所述第二次级线圈的一端之间的连接部分拉出的构造; 开关部件,用于向所述变压器的正向和反向交替施加电压; 整流部分,用于整流变压器中心抽头两端感应的电压和第一次级线圈的另一端或第二次级线圈的另一端; 平滑部分,用于平滑整流部分的电压; 以及用于控制开关部分的导通截止以使输出电压稳定的控制部分。
    • 10. 发明申请
    • POWER SUPPLY SYSTEM
    • 电源系统
    • US20090200991A1
    • 2009-08-13
    • US11576360
    • 2006-11-09
    • Koji YoshidaHiroyuki HandaMitsuhiro Matsuo
    • Koji YoshidaHiroyuki HandaMitsuhiro Matsuo
    • H02J7/00H02J7/04
    • B60L11/185B60L11/1864B60L11/1868H02J7/1415H02J7/1423H02J7/345Y02T10/7005Y02T10/7061Y02T10/7066Y02T10/7072Y02T90/121Y02T90/128Y02T90/14Y10S903/903Y10S903/907
    • A limit value of an output current of power converter is defined as a first current value when a voltage at both ends of capacitor is higher than a voltage at both ends of battery, and a limit value of the output current thereof is defined as a second current value when the voltages are substantially equal to each other, the first current value is set to be smaller than the second current value. Thus, when a voltage at both ends of capacitor and a voltage at both ends of battery are substantially equal, heat is hardly generated. The limit value of the output current is set to a maximum current consumed by load. When a voltage at both ends of capacitor is higher than a voltage at both ends of battery, the limit value of the output current is set to be smaller than the second current value, and thereby heat generation is suppressed. Thus, the size of the heat dissipating components can be reduced, and a power supply system whose entire size can be minimized can be provided.
    • 当电容器两端的电压高于电池两端的电压时,功率转换器的输出电流的极限值被定义为第一电流值,其输出电流的极限值被定义为第二电流值 当电压基本相等时,电流值被设定为小于第二电流值。 因此,当电容器两端的电压和电池两端的电压基本相等时,几乎不产生热量。 输出电流的极限值设置为负载消耗的最大电流。 当电容器两端的电压高于电池两端的电压时,将输出电流的极限值设定为小于第二电流值,从而抑制发热。 因此,可以降低散热部件的尺寸,并且可以提供整体尺寸可以最小化的电源系统。