公开(公告)号：US06373736B1

公开(公告)日：2002-04-16

申请号：US09880606

申请日：2001-06-13

申请人： Yoshihiro Matsumoto ,  Tadahiko Matsumoto

发明人： Yoshihiro Matsumoto ,  Tadahiko Matsumoto

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.

公开(公告)号：US06314005B1

公开(公告)日：2001-11-06

申请号：US09392998

申请日：1999-09-09

申请人： Koji Nishi ,  Koji Kitamura ,  Hitoshi Tsuji ,  Takayoshi Nishiyama ,  Yoshihiro Matsumoto ,  Tadahiko Matsumoto

发明人： Koji Nishi ,  Koji Kitamura ,  Hitoshi Tsuji ,  Takayoshi Nishiyama ,  Yoshihiro Matsumoto ,  Tadahiko Matsumoto

IPC分类号： H02M3335

CPC分类号： H02M3/33523

摘要： A DC-DC converter includes a primary side circuit for allowing a switching device to perform on/off operations to output energy in a primary coil of a transformer to a secondary coil. A secondary side circuit rectifies and smooths a voltage outputted from the secondary coil so as to output a DC-DC voltage. A voltage-detecting circuit rectifies and smooths a voltage outputted from a voltage-detecting coil provided in the transformer so as to output the voltage as a detected voltage corresponding to a voltage to be outputted from the secondary side circuit. A control circuit applies to the switching device a pulse control signal used for controlling on/off operation of the switching device according to the voltage outputted from the voltage-detecting circuit. A primary side current-detecting circuit converts a working current in the primary side circuit, the working current corresponding to a current in the secondary side circuit, for performing detection thereof, and for superposing the thus detected voltage corresponding to the working current with the detected voltage outputted from the voltage-detecting circuit so as to compensate for an amount of variation of an output voltage of the secondary side circuit. The variation is attributed to a variation of the working current in the secondary side circuit. A voltage determined by the superposed voltage is applied to the control circuit.

摘要翻译： DC-DC转换器包括：初级侧电路，用于允许开关器件执行导通/截止操作，以将变压器的初级线圈中的能量输出到次级线圈。 次级侧电路对从次级线圈输出的电压进行整流并平滑，以输出DC-DC电压。 电压检测电路对设置在变压器中的电压检测线圈输出的电压进行整流和平滑，以将电压输出为与从次级侧电路输出的电压对应的检测电压。 控制电路根据从电压检测电路输出的电压向开关装置施加用于控制开关装置的开关动作的脉冲控制信号。 初级侧电流检测电路将初级侧电路中的工作电流，与次级侧电路中的电流相对应的工作电流进行转换，以进行检测，并将与检测到的工作电流对应的检测到的电压叠加 从电压检测电路输出的电压，以补偿次级侧电路的输出电压的变化量。 该变化归因于二次侧电路中的工作电流的变化。 将由叠加电压确定的电压施加到控制电路。

公开(公告)号：US5892665A

公开(公告)日：1999-04-06

申请号：US111045

申请日：1998-07-07

申请人： Tadahiko Matsumoto ,  Seiichi Takahashi ,  Yoshihiro Matsumoto ,  Hitoshi Tsuji

发明人： Tadahiko Matsumoto ,  Seiichi Takahashi ,  Yoshihiro Matsumoto ,  Hitoshi Tsuji

IPC分类号： H02H9/02 ,  H02M3/28 ,  H02M3/335 ,  H02M7/122 ,  H02M7/100

CPC分类号： H02M3/33507 ,  H02M1/32

摘要： An overcurrent protection circuit provided for a switching power supply has a current detector, voltage superposition device, and circuit for reducing a driving pulse. The current detector detects a circuit current in the switching power supply and converts it to a voltage. The voltage superposition device generates a constant voltage and superposes the voltage onto the detected voltage converted by the current detector. The detected voltage onto which the constant voltage has been superposed is applied between the base and the emitter of a transistor which functions as the circuit for reducing the driving pulse. If an overcurrent flows through the switching power supply, the transistor is turned on and a current flows into the transistor. As a result, a voltage applied to a maximum-duty-cycle setting terminal of a PWM IC provided for the switching power supply and used for pulse-width-modulation control of a switch device is reduced, and the overcurrent is suppressed.

摘要翻译： 为开关电源提供的过电流保护电路具有电流检测器，电压叠加装置和用于减小驱动脉冲的电路。 电流检测器检测开关电源中的电路电流并将其转换为电压。 电压叠加装置产生恒定电压，并将电压叠加在由电流检测器转换的检测电压上。 将叠加有恒定电压的检测电压施加在用作减小驱动脉冲的电路的晶体管的基极和发射极之间。 如果过电流流过开关电源，晶体管导通，电流流入晶体管。 结果，施加到为开关电源提供并用于开关器件的脉宽调制控制的PWM IC的最大占空比设置端子的电压降低，并且过电流被抑制。

公开(公告)号：US06757174B2

公开(公告)日：2004-06-29

申请号：US10105777

申请日：2002-03-25

申请人： Jun Nagai ,  Yoshihiro Matsumoto ,  Takayoshi Nishiyama ,  Tadahiko Matsumoto

发明人： Jun Nagai ,  Yoshihiro Matsumoto ,  Takayoshi Nishiyama ,  Tadahiko Matsumoto

IPC分类号： H05K103

CPC分类号： H01F27/2804 ,  H01F27/292 ,  H05K1/141 ,  H05K1/165 ,  H05K3/3405 ,  H05K3/3421 ,  H05K2201/086 ,  H05K2201/09063 ,  H05K2201/10386 ,  H05K2201/10446

摘要： A switching power-supply module includes a coil pattern of a transformer or an inductor disposed on a substrate. A portion of the coil pattern projects into an edge portion of the substrate. A plurality of terminals are arranged in the substrate edge portion so that they do not touch the coil pattern. The substrate edge portion is soaked in molten solder in the production procedure in order to fix the terminals onto the substrate with solder after components are solder-connected on the substrate. For this reason, the components were previously prohibited from being mounted in the substrate edge portion, and this region has been previously considered to be a dead space. However, in the present invention, since a portion of the coil pattern projects into the substrate edge portion, dead space is minimized, and the size of the substrate, that is, of the switching power supply module is greatly reduced.

摘要翻译： 开关电源模块包括设置在基板上的变压器或电感器的线圈图案。 线圈图案的一部分突出到基板的边缘部分。 多个端子布置在基板边缘部分中，使得它们不接触线圈图案。 在制造过程中，将基板边缘部分浸入熔融焊料中，以便在将元件焊接在基板上之后将端子固定在基板上。 因此，以前，这些部件被禁止安装在基板边缘部分中，该区域以前被认为是死空间。 然而，在本发明中，由于线圈图案的一部分突出到基板边缘部分中，所以死空间最小化，并且基板，即开关电源模块的尺寸大大降低。

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。

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。

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

IPC分类号： H02M3/155 ,  H02M3/28 ,  H02M3/335 ,  H02H7/122 ,  H02M7/44

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。

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。

公开(公告)号：US20080049456A1

公开(公告)日：2008-02-28

申请号：US11848927

申请日：2007-08-31

申请人： Eito Moromizato ,  Tadahiko Matsumoto

发明人： Eito Moromizato ,  Tadahiko Matsumoto

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。

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。