公开(公告)号：US08374003B2

公开(公告)日：2013-02-12

申请号：US13157459

申请日：2011-06-10

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 control IC including a full-bridge circuit is disposed on a primary side and a secondary side. Bidirectional communication is performed between the primary side and the secondary side in a state in which they are isolated. A control signal output from the primary side or the secondary side earlier is preferentially processed. As a result, the authority to control a switching element can be freely given to a primary-side control IC or a secondary-side control IC, and any control processing can be performed with software.

摘要翻译： 包括全桥电路的控制IC设置在初级侧和次级侧。 在它们隔离的状态下，在初级侧和次级侧之间执行双向通信。 优先处理从初级侧或次级侧输出的控制信号。 结果，控制开关元件的权力可以自由地给予初级侧控制IC或次级侧控制IC，并且可以用软件执行任何控制处理。

公开(公告)号：US08335092B2

公开(公告)日：2012-12-18

申请号：US13205657

申请日：2011-08-09

申请人： Tadahiko Matsumoto ,  Tatsuya Hosotani

发明人： Tadahiko Matsumoto ,  Tatsuya Hosotani

IPC分类号： H02M3/335

CPC分类号： H02M3/33523

摘要： In an ON/OFF type isolated DC-DC converter that stores electromagnetic energy in a main transformer during an ON period of a power switch and releases the electromagnetic energy to an output during an OFF period of the power switch, high-speed, highly stable output voltage control without the need for a photocoupler, for which the allowable temperature range is relatively narrow and the current transfer ratio changes over time, is performed. An integrating circuit including a resistor and a capacitor generates a ramp wave, and the ramp wave is superposed on a reference voltage of a reference voltage source Vref through a capacitor. A comparator compares a voltage Vo that is proportional to an output voltage of a converter with the reference voltage on which the ramp wave has been superposed, and transmits an inversion timing signal through a pulse transformer. During an ON period of a power switch, when the voltage Vo that is proportional to the output voltage exceeds the reference voltage on which the ramp wave has been superposed, the comparator is inverted and the power switch is turned OFF.

摘要翻译： 在ON / OFF型隔离式DC-DC转换器中，在电源开关导通期间将电磁能存储在主变压器中，并在电源开关断开期间将电磁能释放到输出端，高速高稳定 输出电压控制，而不需要光电耦合器，其允许的温度范围相对较窄并且电流传输比随时间变化。 包括电阻器和电容器的积分电路产生斜波，斜坡波通过电容器叠加在基准电压源Vref的基准电压上。 比较器将与转换器的输出电压成比例的电压Vo与斜坡波叠加的参考电压进行比较，并通过脉冲变压器发送反相定时信号。 在电源开关的导通期间，当与输出电压成比例的电压Vo超过斜坡波叠加的参考电压时，比较器被反相，电源开关被关断。

公开(公告)号：US20120081927A1

公开(公告)日：2012-04-05

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：US20110292691A1

公开(公告)日：2011-12-01

申请号：US13205657

申请日：2011-08-09

申请人： Tadahiko MATSUMOTO ,  Tatsuya HOSOTANI

发明人： Tadahiko MATSUMOTO ,  Tatsuya HOSOTANI

IPC分类号： H02M3/335

CPC分类号： H02M3/33523

摘要： In an ON/OFF type isolated DC-DC converter that stores electromagnetic energy in a main transformer during an ON period of a power switch and releases the electromagnetic energy to an output during an OFF period of the power switch, high-speed, highly stable output voltage control without the need for a photocoupler, for which the allowable temperature range is relatively narrow and the current transfer ratio changes over time, is performed. An integrating circuit including a resistor and a capacitor generates a ramp wave, and the ramp wave is superposed on a reference voltage of a reference voltage source Vref through a capacitor. A comparator compares a voltage Vo that is proportional to an output voltage of a converter with the reference voltage on which the ramp wave has been superposed, and transmits an inversion timing signal through a pulse transformer. During an ON period of a power switch, when the voltage Vo that is proportional to the output voltage exceeds the reference voltage on which the ramp wave has been superposed, the comparator is inverted and the power switch is turned OFF.

摘要翻译： 在ON / OFF型隔离式DC-DC转换器中，在电源开关导通期间将电磁能存储在主变压器中，并在电源开关断开期间将电磁能释放到输出端，高速高稳定 输出电压控制，而不需要光电耦合器，其允许的温度范围相对较窄并且电流传输比随时间变化。 包括电阻器和电容器的积分电路产生斜波，斜坡波通过电容器叠加在基准电压源Vref的基准电压上。 比较器将与转换器的输出电压成比例的电压Vo与斜坡波叠加的参考电压进行比较，并通过脉冲变压器发送反相定时信号。 在电源开关的导通期间，当与输出电压成比例的电压Vo超过斜坡波叠加的参考电压时，比较器被反相，电源开关被关断。

公开(公告)号：US07729136B2

公开(公告)日：2010-06-01

申请号：US12509639

申请日：2009-07-27

申请人： Tadahiko Matsumoto

发明人： Tadahiko Matsumoto

IPC分类号： H02M3/335 ,  H02M3/24

CPC分类号： H02M3/33523

摘要： In an isolated DC-DC converter, an on-period control circuit generates an off-timing signal when the output voltage of an isolated DC-DC converter exceeds a reference voltage. A signal reception/power switch driving circuit causes a first switching device to be turned on based on a pulse signal for switching that is output from a PWM control circuit, and causes the first switching device to be turned off based on an off-timing signal transmitted by an off-timing signal transmission unit. A bootstrap circuit boosts a control voltage of the first switching device with the pulse signal for switching that is output from the PWM control circuit.

摘要翻译： 在隔离式DC-DC转换器中，当隔离式DC-DC转换器的输出电压超过参考电压时，导通周期控制电路产生关断定时信号。 信号接收/电源开关驱动电路使得第一开关装置基于从PWM控制电路输出的用于开关的脉冲信号而导通，并且基于断开定时信号使第一开关装置断开 由断开定时信号发送单元发送。 自举电路利用从PWM控制电路输出的用于切换的脉冲信号来提升第一开关器件的控制电压。

公开(公告)号：US20090279327A1

公开(公告)日：2009-11-12

申请号：US12509639

申请日：2009-07-27

申请人： Tadahiko MATSUMOTO

发明人： Tadahiko MATSUMOTO

IPC分类号： H02M3/335

CPC分类号： H02M3/33523

摘要： In an isolated DC-DC converter, an on-period control circuit generates an off-timing signal when the output voltage of an isolated DC-DC converter exceeds a reference voltage. A signal reception/power switch driving circuit causes a first switching device to be turned on based on a pulse signal for switching that is output from a PWM control circuit, and causes the first switching device to be turned off based on an off-timing signal transmitted by an off-timing signal transmission unit. A bootstrap circuit boosts a control voltage of the first switching device with the pulse signal for switching that is output from the PWM control circuit.

摘要翻译： 在隔离式DC-DC转换器中，当隔离式DC-DC转换器的输出电压超过参考电压时，导通周期控制电路产生关断定时信号。 信号接收/电源开关驱动电路使得第一开关装置基于从PWM控制电路输出的用于开关的脉冲信号而导通，并且基于断开定时信号使第一开关装置断开 由断开定时信号发送单元发送。 自举电路利用从PWM控制电路输出的用于切换的脉冲信号来提升第一开关器件的控制电压。

公开(公告)号：US07596009B2

公开(公告)日：2009-09-29

申请号：US12399157

申请日：2009-03-06

申请人： Tadahiko Matsumoto

发明人： Tadahiko Matsumoto

IPC分类号： H02M7/68

CPC分类号： H02M3/33592 ,  H02M2001/0064 ,  Y02B70/1475

摘要： In a double-ended isolated DC-DC converter, by using a main transformer and first and second pulse transformers, a first power switch of a primary side circuit and a first synchronous rectifier of a secondary side circuit are driven with complementary timing, and a second power switch of the primary side circuit and a second synchronous rectifier of the secondary side circuit are driven with complementary timing. A first turn-off edge signal and a first turn-on edge signal generated in a primary side control circuit are transmitted to the secondary side via the first pulse transformer so as to generate a driving signal of the first synchronous rectifier. In addition, a second turn-off edge signal and a second turn-on edge signal generated in a primary side circuit are transmitted to the secondary side via the second pulse transformer so as to generate a driving signal of the second synchronous rectifier.

摘要翻译： 在双端隔离DC-DC转换器中，通过使用主变压器和第一和第二脉冲变压器，辅助侧电路的初级侧电路和第一同步整流器的第一电源开关被互补定时驱动，并且 初级侧电路的第二电源开关和次级侧电路的第二同步整流器以补充定时被驱动。 在初级侧控制电路中产生的第一关断边沿信号和第一导通边缘信号经由第一脉冲变压器传输到次级侧，以产生第一同步整流器的驱动信号。 此外，在初级侧电路中产生的第二截止边缘信号和第二导通边缘信号经由第二脉冲变压器被发送到次级侧，以产生第二同步整流器的驱动信号。

公开(公告)号：US06690256B2

公开(公告)日：2004-02-10

申请号：US10125556

申请日：2002-04-19

申请人： Yasuo Ohashi ,  Jun Nagai ,  Tadahiko Matsumoto

发明人： Yasuo Ohashi ,  Jun Nagai ,  Tadahiko Matsumoto

IPC分类号： H01F500

CPC分类号： H01F27/027 ,  H01F27/263

摘要： In order to improve efficiency of core rubbing operation and also to facilitate reduction in thickness of a coil device, a core-combining member includes substantially U-shaped topside and backside cover members, and a pair of core members are clamped and combined together from top and backsides by fitting the topside and backside cover members to each other. Legs of the topside cover member are provided with leg-openings formed therein while legs of the backside cover member are provided with convex parts for retaining to edges of the leg-openings so as to prevent detachment. A play clearance in the front and rear direction is provided between the convex part and an edge of the leg opening. Core rubbing is performed by relatively moving the cover members in the front and rear direction so as to integrally move the core members while maintaining the core members to be clamped. Stopper means is provided for restricting the relative displacement in the front and rear direction.

摘要翻译： 为了提高芯部摩擦操作的效率并且还有利于减小线圈装置的厚度，芯组合构件包括基本上U形的顶侧和后侧盖构件，并且一对芯构件从顶部夹紧并组合在一起 并且通过将顶侧和后侧盖构件彼此配合而形成背面。 顶侧盖构件的腿部设置有形成在其中的腿部开口，而后侧盖构件的腿部设置有用于保持在腿部开口的边缘的凸起部分，以防止脱离。 在凸起部和腿部开口的边缘之间设置有前后方向的游隙。 通过使盖部件沿前后方向相对移动，使芯部件整体移动，同时保持芯部部件被夹紧，进行芯部摩擦。 提供止动装置用于限制前后方向上的相对位移。

公开(公告)号：US06597588B2

公开(公告)日：2003-07-22

申请号：US10212262

申请日：2002-08-06

申请人： Tadahiko Matsumoto

发明人： Tadahiko Matsumoto

IPC分类号： H02M3335

CPC分类号： H02M3/33507 ,  H02M2001/0019 ,  Y10S323/907

摘要： An insulating-type switching electric power source device has an input voltage Vin of a primary side that is converted at an input/output ratio determined by switching operations of a switching device, and then is output. Voltage subjected to rectifying and smoothing by a primary-side rectification smoothing circuit is used as detecting signals of the output voltage, to control the time ratio of the switching device. A load regulation correcting circuit outputs load regulation correcting signals correlated with the amount of output current. A temperature compensating circuit corrects the load regulation correcting signals according to the ambient temperature. The load regulation correcting signals correct the output voltage detecting signals according to the fluctuations of the output voltage according to fluctuations in the output current and fluctuations in the ambient temperature. As a result, fluctuations in the output voltage caused by fluctuations in the output current and fluctuations in the ambient temperature are compensated for.

摘要翻译： 绝缘型开关电源装置具有以由开关装置的开关动作决定的输入/输出比转换为初级侧的输入电压Vin，然后输出。 作为输出电压的检测信号，使用由初级侧整流平滑电路进行整流和平滑化的电压，以控制开关器件的时间比。 负载调整校正电路输出与输出电流量相关的负载调整校正信号。 温度补偿电路根据环境温度校正负载调节校正信号。 根据输出电流的波动和环境温度的波动，负载调整校正信号根据输出电压的波动校正输出电压检测信号。 结果，由输出电流的波动和环境温度的波动引起的输出电压的波动被补偿。

公开(公告)号：US06281779B1

公开(公告)日：2001-08-28

申请号：US09511346

申请日：2000-02-23

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 coil device having a core having an intermediate leg and at least a pair of external legs arranged at equal intervals from the intermediate leg; a first printed coil 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; and a second printed coil 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 with the same number of turns but in opposite directions.

摘要翻译： 一种线圈装置，具有芯部，该芯部具有中间腿部和至少一对外侧腿部，其相对于中间腿部布置成相等的间隔; 设置在第一基板上的第一印刷线圈，所述第一基板具有中间孔和分别插入所述中间支腿和所述芯的所述一对外部支腿的一对外部孔，所述第一印刷线圈缠绕在所述中间孔上; 以及设置在第二基板上的第二印刷线圈，所述第二印刷线圈具有分别插入所述中间支脚和所述芯体的所述一对外部支脚的中间孔和一对外部孔，所述第二印刷线圈包括一对外部印刷线圈， 分别以相同的匝数但相反的方向缠绕在一对外部的孔周围。