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公开(公告)号：US06380836B2
公开(公告)日：2002-04-30
申请号：US09855256
申请日：2001-05-15
申请人： Tadahiko Matsumoto , Jun Nagai
发明人： Tadahiko Matsumoto , Jun Nagai
IPC分类号： H01F500
CPC分类号： H02M3/33576 , H01F19/04 , H01F27/2804 , H02M3/335 , H02M3/33592 , H02M2001/0064 , H05K1/144 , H05K1/165 , Y02B70/1475
摘要： A switching power supply has a transformer for power transmission. A core is provided having an intermediate leg and at least a pair of external legs arranged at equal intervals from the intermediate leg; a first printed coil is provided on a first substrate which has an intermediate hole and a pair of external holes respectively inserted in the intermediate leg and the pair of external legs of the core, the first printed coil being wound around the intermediate hole; a second printed coil is provided on a second substrate which has an intermediate hole and a pair of external holes respectively inserted in the intermediate leg and the pair of external legs of the core, the second printed coil including a pair of external printed coils which are connected in series and are respectively wound around the pair of the external holes and each having the same number of turns but wound in opposite directions. The pair of external printed coils of the second printed coil generate magnetic fields in opposite directions to each other in the intermediate leg such that the magnetic fields in the intermediate leg cancel each other and induce no induction voltage in the first printed coil, and induction voltages induced in the external printed coils of the second printed coil by magnetic flux generated by the first printed coil are substantially canceled, whereby the first printed coil and the second printed coil form separate inductors which are not magnetically coupled. A third printed coil is provided on a third substrate which has an intermediate hole and a pair of external holes respectively inserted in the intermediate leg and the pair of external legs of the core, the third printed coil being wound around the intermediate hole, whereby the first printed coil is magnetically coupled with the third printed coil to form a first transformer; and further wherein the tranformer for power transmission comprises the first transformer.
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公开(公告)号：US06295214B1
公开(公告)日：2001-09-25
申请号：US09538427
申请日：2000-03-29
IPC分类号： H02M3335
CPC分类号： H02M3/33507 , H02M2001/0009
摘要： A switching power supply unit, which rectifies and smoothes an AC current and an AC voltage from the on-off switching operation of a main switching element to output a DC current and a DC voltage, has an output current detection circuit including a current detection resistor disposed in an intermittent-current flowing path through which a current intermittently flows in sync with the on-off switching operation of the main switching element, a synchronous rectifying a switching element for rectifying a current flowing through the current detection resistor, and a capacitor for charging the current rectified by the synchronous rectifying element, wherein the current flowing through the current detection resistor is charged in the capacitor by a rectifying operation of the synchronous rectifying element, and the charging voltage of the capacitor is outputted as a voltage corresponding to the output current of the switching power supply unit.
摘要翻译： 开关电源单元，其从主开关元件的开 - 关开关操作对AC电流和AC电压进行整流和平滑以输出DC电流和DC电压，具有输出电流检测电路，其包括电流检测电阻器 设置在与主开关元件的通断开关动作同步地间歇地流动的电流的间歇电流流动路径中，对流过电流检测电阻器的电流进行整流的开关元件的同步整流，以及用于 对由同步整流元件整流的电流进行充电，其中流过电流检测电阻器的电流通过同步整流元件的整流操作而被充电到电容器中，并且将电容器的充电电压输出为与输出相对应的电压 开关电源单元的电流。
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公开(公告)号：US08334747B2
公开(公告)日：2012-12-18
申请号：US13352592
申请日：2012-01-18
申请人： Tadahiko Matsumoto
发明人： Tadahiko Matsumoto
IPC分类号： H01F5/00
CPC分类号： H02M3/28 , H01F27/22 , H01F2027/2809 , H05K1/0207 , H05K1/165 , H05K1/182 , H05K2201/086 , H05K2201/09063 , H05K2201/093 , H05K2201/0969
摘要： A coil-integrated switching power supply module that provides an improved heat radiation effect to keep the temperature of the entire coil-integrated switching power supply module to a lower value includes a thermal diffusion conductor pattern arranged around a hole through which a magnetic core extends on a layer. The thermal diffusion conductor pattern continuously extends in areas where coil conductor patterns are located on other layers and outside areas where the coil conductor patterns are located on the other layers. In addition, the thermal diffusion conductor pattern includes slits at portions thereof and does not define a closed loop around the hole through which the magnetic core extends.
摘要翻译： 提供改善的散热效果以将整个线圈集成开关电源模块的温度保持在较低值的线圈集成开关电源模块包括布置在磁芯延伸的孔周围的热扩散导体图案 一层。 热扩散导体图案在线圈导体图案位于其它层和线圈导体图案位于其它层上的外部区域的区域中连续地延伸。 此外，热扩散导体图案在其部分包括狭缝，并且不限定围绕磁芯延伸的孔的闭环。
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公开(公告)号：US20070153554A1
公开(公告)日：2007-07-05
申请号：US11687278
申请日：2007-03-16
申请人： Tadahiko Matsumoto
发明人： Tadahiko Matsumoto
IPC分类号： H02M3/335
CPC分类号： H02M3/33592 , Y02B70/1475
摘要： A primary side is provided with an oscillation circuit arranged to turn on a power switch at a constant cycle. The secondary side is provided with an on period control circuit arranged to output an off signal for turning the power switch off by detecting output voltage and comparing with a reference triangle wave signal. An insulated signal transfer circuit is provided between the primary side and secondary side to transfer an on signal. The primary side is provided with a power switch off circuit arranged to turn off the power switch based on the on signal.
摘要翻译： 初级侧设置有以恒定周期接通电源开关的振荡电路。 次级侧设置有接通周期控制电路，布置成输出用于通过检测输出电压并与参考三角波信号进行比较来关断电源开关的关闭信号。 在初级侧和次级侧之间提供绝缘信号传输电路以传送接通信号。 初级侧设置有电源开关断开电路，其布置成基于接通信号来关闭电源开关。
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15.发明授权
公开(公告)号：US6130826A
公开(公告)日：2000-10-10
申请号：US458182
申请日：1999-12-07
申请人： Tadahiko Matsumoto
发明人： Tadahiko Matsumoto
CPC分类号： H02M1/36
摘要： A switching power supply is provided which is capable of supplying a stable voltage to a control circuit with high precision so as to enable an electronic part that does not have a high voltage tolerance to be used in the control circuit, and which enhances efficiency by providing a circuit configuration with a reduced power loss. The auxiliary power supply circuit of the switching power supply is configured such that, to a primary power supply, a series circuit including a first resistor, a voltage element, and a Zener diode; and a series circuit including a second resistor, a first transistor, a second transistor; and a control circuit of a switching element, are connected in parallel to each other. The input terminal of the first transistor is connected to the connection point of the first resistor and the voltage element, the input terminal of the second transistor is connected to the connection point of the voltage element and the Zener diode. The auxiliary power supply that operates the control circuit during steady-state is connected between the connection point of the first transistor and the second transistor and the reference terminal of the primary power supply.
摘要翻译： 提供一种开关电源，其能够以高精度向控制电路提供稳定的电压，以便能够在控制电路中使用不具有高电压容差的电子部件，并且通过提供效率来提高效率 具有降低的功率损耗的电路配置。 开关电源的辅助电源电路构成为：向主电源施加包括第一电阻，电压元件和齐纳二极管的串联电路; 以及包括第二电阻器，第一晶体管，第二晶体管的串联电路; 和开关元件的控制电路彼此并联连接。 第一晶体管的输入端子连接到第一电阻器和电压元件的连接点，第二晶体管的输入端子连接到电压元件和齐纳二极管的连接点。 在稳态期间操作控制电路的辅助电源连接在第一晶体管与第二晶体管的连接点和主电源的基准端之间。
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公开(公告)号：US08374002B2
公开(公告)日：2013-02-12
申请号：US13081529
申请日：2011-04-07
申请人： Tadahiko Matsumoto
发明人： Tadahiko Matsumoto
IPC分类号： H02M3/335
CPC分类号： H02M3/33523
摘要： An isolated switching power supply apparatus includes a direct-current input power supply, a power transmission transformer including a primary winding and a secondary winding, at least one main switching element configured to perform switching control on a direct-current voltage applied to the primary winding of the power transmission transformer, a rectification circuit that includes at least one rectification switching element and is connected to the secondary winding of the power transmission transformer, a smoothing circuit connected to the secondary winding of the power transmission transformer, a power conversion circuit configured to obtain an output voltage from the smoothing circuit, and a control circuit configured to control an operation of the power conversion circuit.
摘要翻译： 一种隔离的开关电源装置，包括直流输入电源，包括初级绕组和次级绕组的电力传输变压器，至少一个主开关元件，被配置为对施加到初级绕组的直流电压进行开关控制 所述整流电路包括至少一个整流开关元件并连接到所述电力变压器的次级绕组，连接到所述电力变压器的次级绕组的平滑电路，电力转换电路，被配置为 从平滑电路获得输出电压，以及控制电路，其被配置为控制电力转换电路的操作。
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公开(公告)号：US20080049456A1
公开(公告)日：2008-02-28
申请号：US11848927
申请日：2007-08-31
IPC分类号： H02M3/335
CPC分类号： H02M3/33592 , Y02B70/1475
摘要： A first drive control signal regenerating circuit outputs an ON timing drive signal at turn-ON of a main switch element, and a second drive control signal regenerating circuit generates an OFF timing drive signal at turn-OFF of the main switch element. A rectifying switch controlling switch element connected between the gate and source of a rectifying switch element is driven by an output of the second drive control signal regenerating circuit. An output of the first drive control signal regenerating circuit connects to the gate of a commutating switch controlling switch element, which connects to one end of an auxiliary winding, the other end thereof being connected to the gate of a commutating switch element. Accordingly, the rectifying switch element is directly controlled from the primary side.
摘要翻译： 第一驱动控制信号再生电路在主开关元件的导通时输出ON定时驱动信号，第二驱动控制信号再生电路在主开关元件的截止时产生OFF定时驱动信号。 连接在整流开关元件的栅极和源极之间的整流开关控制开关元件由第二驱动控制信号再生电路的输出驱动。 第一驱动控制信号再生电路的输出端连接到与辅助绕组的一端连接的换向开关控制开关元件的栅极，其另一端连接到换向开关元件的栅极。 因此，整流开关元件从初级侧直接控制。
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公开(公告)号：US07113379B2
公开(公告)日：2006-09-26
申请号：US10307291
申请日：2002-12-02
申请人： Tadahiko Matsumoto
发明人： Tadahiko Matsumoto
IPC分类号： H02H9/02
CPC分类号： H02H7/1213 , H02H3/06 , H02M1/32 , H02M1/36 , H02M3/33507
摘要： A switching power supply unit includes an overcurrent protection circuit section and a latch-stop release signal output circuit section. The overcurrent protection circuit section performs an overcurrent protection operation for latching and stopping the switching operation of a main switch during an overcurrent state. The latch-stop release signal output circuit section outputs a signal, only in a predetermined latch-stop release period, for releasing the latch stop after a certain waiting time has elapsed from the time of the latch stop. This arrangement can virtually perform a hiccup-mode overcurrent protection operation at the time of overcurrent, and expands the scope of application of a switching power supply unit. Switching power supply circuits are interconnected by simultaneous starting connections. Switching controllers for the main switches are connected to match hiccup mode restart timings.
摘要翻译： 开关电源单元包括过电流保护电路部分和闭锁停止释放信号输出电路部分。 过电流保护电路部分在过电流状态下执行用于闭锁和停止主开关的开关操作的过电流保护操作。 闩锁停止释放信号输出电路部分仅在预定的锁定停止释放时段中输出用于在从锁止停止时间经过一定等待时间之后解除闩锁停止的信号。 这种布置可以在过电流时实际上执行打嗝模式的过电流保护操作，并且扩大了开关电源单元的应用范围。 开关电源电路通过同时启动连接互连。 连接主交换机的交换控制器，以匹配打嗝模式重新启动定时。
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公开(公告)号：US06373736B1
公开(公告)日：2002-04-16
申请号：US09880606
申请日：2001-06-13
IPC分类号： H02M100
摘要： An isolated converter with a reduced size is disclosed. A small-sized multilayer sheet transformer includes a multilayer circuit board composed of a plurality of sheet substrates, coil patterns of primary and secondary coils disposed coaxially on the sheet substrates, and a core member disposed in a coil pattern unit formed of the coil patterns. In this multilayer sheet transformer, a coil pattern formed on the outer surface of the top layer and a coil pattern formed on the outer surface of the bottom layer are for the same coil on either the primary or secondary side. In the case where the coil patterns formed on the outer surfaces of the top and bottom layers of the multilayer sheet transformer are for the primary coil, an isolation gap is formed between the multilayer sheet transformer and a circuit on the secondary side to prevent an electrical breakdown between the primary and secondary sides. In the case where the coil patterns formed on the outer surfaces of the top and bottom layers of the multilayer sheet transformer are for the secondary coil, an isolation gap is formed between the multilayer sheet transformer and a circuit on the primary side to prevent an electrical breakdown between the primary and secondary sides.
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公开(公告)号：US5278746A
公开(公告)日：1994-01-11
申请号：US925751
申请日：1992-08-07
申请人： Tadahiko Matsumoto
发明人： Tadahiko Matsumoto
CPC分类号： H04N3/185 , H02M3/33569
摘要： In a high voltage generator including a flyback transformer having a low-voltage coil and a high-voltage coil, a first switching element is disposed in a current path between a drive power source, the low-voltage coil and ground. The first switching element is turned on and off so as to charge and discharge a resonance capacitor, thereby generating flyback pulses. An output voltage of the high-voltage coil is detected. A peak value of the flyback pulse is controlled based on the detected output voltage so as to stabilize the output voltage of the high-voltage coil. A second switching element is located in the current path between the drive power source, the low-voltage coil and ground. The second switching element is turned on the moment the first switching element is turned off, thereby transferring electrical energy stored in the low-voltage coil to the resonance capacitor. After the transfer of the electric energy, a charging capacitor is charged by an inverse current flowing from the resonance capacitor to the drive power source.
摘要翻译： 在包括具有低压线圈和高压线圈的回扫变压器的高压发生器中，第一开关元件设置在驱动电源，低压线圈和地之间的电流路径中。 第一开关元件被导通和截止以对谐振电容器进行充电和放电，由此产生回扫脉冲。 检测高电压线圈的输出电压。 基于所检测的输出电压来控制回扫脉冲的峰值，以稳定高压线圈的输出电压。 第二开关元件位于驱动电源，低压线圈和地之间的电流路径中。 第二开关元件在第一开关元件断开的时刻转动，从而将存储在低压线圈中的电能传递到谐振电容器。 在传送电能之后，通过从谐振电容器流向驱动电源的反向电流对充电电容器进行充电。
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