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1. 发明授权

US09025348B2 Drive circuit 有权
标题翻译：驱动电路
公开(公告)号：US09025348B2
公开(公告)日：2015-05-05
申请号：US13608359
申请日：2012-09-10
申请人： Keiichiro Ozawa , Akio Iwabuchi , Yasushi Tasaka , Ryuichi Furukoshi
发明人： Keiichiro Ozawa , Akio Iwabuchi , Yasushi Tasaka , Ryuichi Furukoshi
IPC分类号： H02M3/335 , H02M1/36 , H02M1/00
CPC分类号： H02M1/36 , H02M3/33523 , H02M2001/0006
摘要： A drive circuit drives a normally-on high-side switch Q1 and a normally-off low-side switch Q2 that form a series circuit connected in parallel with a DC power source. The drive circuit includes a controller 10 that outputs a control signal to turn on/off the high- and low-side switches, a rectifier D2 having a first end connected to a connection point of the high- and low-side switches, a capacitor C2 that is connected to a second end of the rectifier and a first end of the DC power source and serves as a power source for the controller, and a driver (A1, AND1, Q3, Q4) that turns on/off the high- and low-side switches according to the control signal from the controller and a voltage from the capacitor.
摘要翻译：驱动电路驱动形成与直流电源并联连接的串联电路的常开高侧开关Q1和常开低侧开关Q2。驱动电路包括：控制器10，其输出用于接通/关闭高侧和低侧开关的控制信号;整流器D2，其具有连接到高侧开关和低侧开关的连接点的第一端;电容器 C2连接到整流器的第二端和DC电源的第一端，并且用作控制器的电源;以及驱动器（A1，AND1，Q3，Q4）和低侧开关根据来自控制器的控制信号和来自电容器的电压。

2. 发明申请

US20130070487A1 DRIVE CIRCUIT 有权
标题翻译：驱动电路
公开(公告)号：US20130070487A1
公开(公告)日：2013-03-21
申请号：US13608359
申请日：2012-09-10
申请人： Keiichiro OZAWA , Akio Iwabuchi , Yasushi Tasaka , Ryuichi Furukoshi
发明人： Keiichiro OZAWA , Akio Iwabuchi , Yasushi Tasaka , Ryuichi Furukoshi
IPC分类号： H02M3/335
CPC分类号： H02M1/36 , H02M3/33523 , H02M2001/0006
摘要： A drive circuit drives a normally-on high-side switch Q1 and a normally-off low-side switch Q2 that form a series circuit connected in parallel with a DC power source. The drive circuit includes a controller 10 that outputs a control signal to turn on/off the high- and low-side switches, a rectifier D2 having a first end connected to a connection point of the high- and low-side switches, a capacitor C2 that is connected to a second end of the rectifier and a first end of the DC power source and serves as a power source for the controller, and a driver (A1, AND1, Q3, Q4) that turns on/off the high- and low-side switches according to the control signal from the controller and a voltage from the capacitor.
摘要翻译：驱动电路驱动形成与直流电源并联连接的串联电路的常开高侧开关Q1和常开低侧开关Q2。驱动电路包括：控制器10，其输出用于接通/关闭高侧和低侧开关的控制信号;整流器D2，其具有连接到高侧开关和低侧开关的连接点的第一端;电容器 C2连接到整流器的第二端和DC电源的第一端，并且用作控制器的电源;以及驱动器（A1，AND1，Q3，Q4）和低侧开关根据来自控制器的控制信号和来自电容器的电压。

3. 发明申请

US20090045851A1 DEVICE FOR DRIVING SWITCHING ELEMENTS 有权
标题翻译：用于驱动开关元件的装置
公开(公告)号：US20090045851A1
公开(公告)日：2009-02-19
申请号：US11577201
申请日：2005-09-20
申请人： Akio Iwabuchi , Ryuichi Furukoshi , Yoichi Kyono
发明人： Akio Iwabuchi , Ryuichi Furukoshi , Yoichi Kyono
IPC分类号： H03B1/00
CPC分类号： H03K19/018557 , H02M1/08 , H02M7/538 , H03K17/162 , H03K17/6871
摘要： A device for driving switching elements is provided with a potential detector 29 which provides drive circuit 30 with signals in response to differences among potentials at junctions 17 to 20 of first and third resistors 13, 15, third resistor 15 and first control MOS-FET 8, second and fourth resistors 14, 16 and fourth resistor 16 and second control MOS-FET 9 so that drive circuit 30 supplies drive signals to a gate terminal of a first MOS-FET 1 based on potentials in first and second series circuits 11 and 12. When appropriate resistance values are selected for first to fourth resistors 13 to 16, potential detector 29 precisely detects the potential at each junction 17 to 20 to produce detection signals and prevent malfunction of drive circuit 30 even upon occurrence of abnormal signals or noises resulted from abrupt potential rise.
摘要翻译：用于驱动开关元件的装置设置有电位检测器29，电位检测器29响应于第一和第三电阻器13,15，第三电阻器15和第一控制MOS-FET 8的结17至20处的电位之间的差异向驱动电路30提供信号，第二和第四电阻器14,16以及第四电阻器16和第二控制MOS-FET 9，使得驱动电路30基于第一和第二串联电路11和12中的电位向第一MOS-FET 1的栅极端提供驱动信号当对于第一至第四电阻器13至16选择适当的电阻值时，电位检测器29精确地检测每个结17至20处的电位以产生检测信号，并且即使发生异常信号或由此产生的噪声也可防止驱动电路30的故障突然的电位上升。

4. 发明申请

US20070274104A1 Switching Power Supply Apparatus 失效
标题翻译：开关电源设备
公开(公告)号：US20070274104A1
公开(公告)日：2007-11-29
申请号：US11660590
申请日：2005-08-10
申请人： Ryuichi Furukoshi , Akio Iwabuchi
发明人： Ryuichi Furukoshi , Akio Iwabuchi
IPC分类号： H02M3/335
CPC分类号： H02M3/33507 , H02M1/32 , H02M3/335 , H02M2001/0006
摘要： There are included an actuation unit supplying an actuation power to a control unit to start a switching operation of a switching element when an alternating-current power sources turned on, and stopping supply of the actuation power to the control unit after the switching operation of the switching element is started; an overheat detection unit being thermally coupled with the actuation unit and detecting an abnormal condition due to overheating of the actuation unit; a latch maintaining an inoperative state of the switching element at the event of an abnormal condition other than the abnormal condition due to overheating of the actuation unit; and an actuation controller configured to discharge an electrical charge of a smoothing capacitor while the latch maintains the inoperative state of the switching operation to speedily reset the latch unit when the alternating-current power source is turned off, and to stop the actuation unit in response to a detection signal from the overheat detection unit.
摘要翻译：包括致动单元，其在控制单元向控制单元提供致动电力时，在交流电源接通时开始开关元件的切换操作，并且在切换操作之后停止向控制单元供电开关元件启动; 过热检测单元与致动单元热耦合并且检测由于致动单元的过热引起的异常状况; 在由于所述致动单元的过热而导致的异常状态以外的异常状态的情况下保持所述开关元件的不工作状态的闩锁; 以及致动控制器，其被配置为在所述闩锁保持所述切换操作的不工作状态时对所述平滑电容器的电荷进行放电，以在所述交流电源关闭时快速复位所述闩锁单元，并响应于所述致动单元停止到来自过热检测单元的检测信号。

5. 发明授权

US07764089B2 Device for driving switching elements 有权
标题翻译：用于驱动开关元件的装置
公开(公告)号：US07764089B2
公开(公告)日：2010-07-27
申请号：US11577201
申请日：2005-09-20
申请人： Akio Iwabuchi , Ryuichi Furukoshi , Yoichi Kyono
发明人： Akio Iwabuchi , Ryuichi Furukoshi , Yoichi Kyono
IPC分类号： H03K3/00
CPC分类号： H03K19/018557 , H02M1/08 , H02M7/538 , H03K17/162 , H03K17/6871
摘要： A device for driving switching elements is provided with a potential detector 29 which provides drive circuit 30 with signals in response to differences among potentials at junctions 17 to 20 of first and third resistors 13, 15, third resistor 15 and first control MOS-FET 8, second and fourth resistors 14, 16 and fourth resistor 16 and second control MOS-FET 9 so that drive circuit 30 supplies drive signals to a gate terminal of a first MOS-FET 1 based on potentials in first and second series circuits 11 and 12. When appropriate resistance values are selected for first to fourth resistors 13 to 16, potential detector 29 precisely detects the potential at each junction 17 to 20 to produce detection signals and prevent malfunction of drive circuit 30 even upon occurrence of abnormal signals or noises resulted from abrupt potential rise.
摘要翻译：用于驱动开关元件的装置设置有电位检测器29，电位检测器29响应于第一和第三电阻器13,15，第三电阻器15和第一控制MOS-FET 8的结17至20处的电位之间的差异向驱动电路30提供信号，第二和第四电阻器14,16以及第四电阻器16和第二控制MOS-FET 9，使得驱动电路30基于第一和第二串联电路11和12中的电位向第一MOS-FET 1的栅极端提供驱动信号当对于第一至第四电阻器13至16选择适当的电阻值时，电位检测器29精确地检测每个结17至20处的电位以产生检测信号，并且即使发生异常信号或由此产生的噪声也可防止驱动电路30的故障突然的电位上升。

6. 发明授权

US07492614B2 Switching power supply apparatus 失效
标题翻译：开关电源装置
公开(公告)号：US07492614B2
公开(公告)日：2009-02-17
申请号：US11660590
申请日：2005-08-10
申请人： Ryuichi Furukoshi , Akio Iwabuchi
发明人： Ryuichi Furukoshi , Akio Iwabuchi
IPC分类号： H02M3/335 , H02H7/122
CPC分类号： H02M3/33507 , H02M1/32 , H02M3/335 , H02M2001/0006
摘要： There are included an actuation unit supplying an actuation power to a control unit to start a switching operation of a switching element when an alternating-current power sources turned on, and stopping supply of the actuation power to the control unit after the switching operation of the switching element is started; an overheat detection unit being thermally coupled with the actuation unit and detecting an abnormal condition due to overheating of the actuation unit; a latch maintaining an inoperative state of the switching element at the event of an abnormal condition other than the abnormal condition due to overheating of the actuation unit; and an actuation controller configured to discharge an electrical charge of a smoothing capacitor while the latch maintains the inoperative state of the switching operation to speedily reset the latch unit when the alternating-current power source is turned off, and to stop the actuation unit in response to a detection signal from the overheat detection unit.
摘要翻译：包括致动单元，其在控制单元向控制单元提供致动电力时，在交流电源接通时开始开关元件的切换操作，并且在切换操作之后停止向控制单元供电开关元件启动; 过热检测单元与致动单元热耦合并且检测由于致动单元的过热引起的异常状况; 在由于所述致动单元的过热而导致的异常状态以外的异常状态的情况下保持所述开关元件的不工作状态的闩锁; 以及致动控制器，其被配置为在所述闩锁保持所述切换操作的不工作状态时对所述平滑电容器的电荷进行放电，以在所述交流电源关闭时快速复位所述闩锁单元，并响应于所述致动单元停止到来自过热检测单元的检测信号。

7. 发明授权

US07330365B2 Synchronous commutation DC-DC converter 失效
标题翻译：同步换向DC-DC转换器
公开(公告)号：US07330365B2
公开(公告)日：2008-02-12
申请号：US10569861
申请日：2004-06-14
申请人： Hiroshi Usui , Ryuichi Furukoshi , Yukinari Fukumoto
发明人： Hiroshi Usui , Ryuichi Furukoshi , Yukinari Fukumoto
IPC分类号： H02M3/335
CPC分类号： H02M3/33507 , H02M3/33592 , H02M3/337 , Y02B70/1475
摘要： A synchronous commutation DC-DC converter comprises a current detection transformer (51) for detecting currents (IQ1, IQ2) flowing through the primary circuit, first and second DC bias power sources (53, 54) generating bias voltages (VBS1, VBS2) larger than the voltage corresponding to the exciting current of a transformer (4), and first and second comparators (55, 57) for driving first and second commutation MOS-FETs (7, 8) when the detection voltage (VDT) of a current detection resistor (52) exceeds the bias voltages (VBS1, VBS2) of the first and second DC bias power sources (53, 54). Since each commutation MOS-FET (7, 8) in the secondary circuit is driven in synchronism with the currents (IQ1, IQ2) of the primary circuit from which the exciting current component of the transformer (4) is removed, it is possible to minimize switching loss of each commutation MOS-FET (7, 8) in the secondary circuit and enhance conversion efficiency of the synchronous commutation DC-DC converter.
摘要翻译：同步换向DC-DC转换器包括用于检测流过初级电路的电流（I SUB，I 2 Q2）的电流检测变压器（51），第一和第二DC偏置产生比对应于变压器（4）的激励电流的电压大的偏置电压（V BS1，V BAT2）的电源（53,54），以及第一和当电流检测电阻（52）的检测电压（V SUB DT）超过偏置电压（V）时用于驱动第一和第二换向MOS-FET（7,8）的第二比较器（55,57）第一和第二DC偏置电源（53,54）的第一和第二DC偏压电源（BS1 ）。由于次级电路中的每个换向MOS-FET（7,8）与主电路的电流（I SUB Q1，I Q2 Q2）同步地驱动，去除变压器（4）的励磁电流分量，可以最小化次级电路中每个换向MOS-FET（7,8）的开关损耗，并提高同步换向DC-DC转换器的转换效率。

8. 发明申请

US20070008757A1 Synchronous commutation dc-dc converter 失效
标题翻译：同步整流dc-dc转换器
公开(公告)号：US20070008757A1
公开(公告)日：2007-01-11
申请号：US10569861
申请日：2004-06-14
申请人： Hiroshi Usui , Ryuichi Furukoshi , Yukinari Fukumoto
发明人： Hiroshi Usui , Ryuichi Furukoshi , Yukinari Fukumoto
IPC分类号： H02M3/335
CPC分类号： H02M3/33507 , H02M3/33592 , H02M3/337 , Y02B70/1475
摘要： A DC-DC converter of synchronous rectification type is provided which comprises: a current detector (51) for discerning electric current (IQ1, IQ2) flowing through a primary side circuit; first and second DC biasing power supplies (53, 54) for producing a bias voltage (VBS1, VBS2) higher than voltage corresponding to excitation current through transformer (4); and first and second comparators (55, 57) for activating first and second rectifying MOS-FET (7, 8) when current detector (51) produces the detection voltage (VDT) over bias voltage (VBS1, VBS2) of first and second DC biasing power supplies (53, 54). As each of first and second rectifying MOS-FETs (7, 8) in secondary side circuit is driven synchronously with electric current (IQ1, IQ2) flowing through the primary side circuit except excitation current component through transformer (4), the converter can minimize switching loss in each rectifying MOS-FET (7, 8) in secondary side circuit to improve conversion efficiency.
摘要翻译：提供了一种同步整流型DC-DC转换器，它包括：用于识别流过初级侧的电流（I Q1，I Q2）的电流检测器（51）电路用于产生高于对应于通过变压器（4）的激励电流的电压的偏置电压（V BS1，V BAT2）的第一和第二DC偏压电源（53,54） ; 以及用于当电流检测器（51）产生超过偏置电压（V）的检测电压（V SUB DT）时激活第一和第二整流MOS-FET（7,8）的第一和第二比较器（55,57）第一和第二DC偏置电源（53,54）的第一和第二BS偏置电压。由于二次侧电路中的第一和第二整流MOS-FET（7,8）中的每一个与流过初级电流的电流（I SUB Q1，I Q2 Q2）同步地驱动除了通过变压器（4）的励磁电流分量外，转换器可以使二次侧电路中每个整流MOS-FET（7,8）中的开关损耗最小化，从而提高转换效率。

9. 发明申请

US20070076446A1 Power converter 有权
标题翻译：电源转换器
公开(公告)号：US20070076446A1
公开(公告)日：2007-04-05
申请号：US11543330
申请日：2006-10-04
申请人： Toshitaka Shiga , Ryuichi Furukoshi
发明人： Toshitaka Shiga , Ryuichi Furukoshi
IPC分类号： H02M3/335
CPC分类号： H02M3/33561 , H02M3/33592 , H02M3/3376 , Y02B70/1475
摘要： A power converter is provided which comprises two main MOS-FETs 4, 5 connected in series to a DC power source 1; an oscillator 2 which has two capacitors 3a, 3b connected in parallel to main MOS-FETs 4, 5; a primary winding 9a of a transformer 9 connected between a junction of two main MOS-FETs 4, 5 and a junction of two capacitors 3a, 3b; an electricity controller 12, 37 which comprises first and second regulatory MOS-FETs 10, 35, 12, 37 connected between respectively one and the other ends of a secondary winding 9b, 9c of transformer 9 and a speaker 15, 40; a polarity detector 51 for detecting the polarity of AC voltage produced on secondary winding 9b, 9c of transformer 9 by the on and off operation of MOS-FETs 4, 5 to generate detection signals; and a drive circuit 24, 25, 49, 50 for receiving detection signals from polarity detector 51 to control the on and off operation of first and second regulatory MOS-FETs 10, 35, 11, 36 to simplify the circuit configuration and improve power conversion efficiency in the power converter.
摘要翻译：提供一种功率转换器，其包括与DC电源1串联连接的两个主MOS-FET 4,5; 振荡器2，其具有与主MOS-FET 4,5并联连接的两个电容器3a，3b; 变压器9的初级绕组9a连接在两个主MOS-FET 4,5的连接点和两个电容器3a，3b之间的连接处; 电力控制器12,37包括连接在变压器9的次级绕组9b，9c和扬声器15,40的分别的一端和另一端之间的第一和第二调节型MOS-FET10,35,12,37; 极性检测器51，用于通过MOS-FET 4,5的导通和截止操作来检测变压器9的次级绕组9b，9c产生的交流电压的极性，以产生检测信号; 以及用于接收来自极性检测器51的检测信号以控制第一和第二调节MOS-FET 10,35,11,36的接通和断开操作的驱动电路24,25,49,50，以简化电路配置并提高功率转换功率转换器的效率。

10. 发明授权

US07382633B2 DC converter 有权
标题翻译： DC转换器
公开(公告)号：US07382633B2
公开(公告)日：2008-06-03
申请号：US11369871
申请日：2006-03-08
申请人： Shinji Aso , Ryuichi Furukoshi , Osamu Ohtake
发明人： Shinji Aso , Ryuichi Furukoshi , Osamu Ohtake
IPC分类号： H02M3/335
CPC分类号： H02M3/33507 , H02M3/335 , H02M2001/342 , Y02B70/1491
摘要： A DC converter includes a time difference detector to detect a time difference between a point around which a main switch provides a minimum voltage after an auxiliary switch turns off and a point at which the main switch turns on, an integrator to integrate the output of the time difference detector, and a first delay circuit to control a turn-on point of the main switch according to the output of the integrator and the output of the time difference detector. The first delay circuit operates to minimize the output of the time difference detector according to the output of the integrator and controls a turn-on point of the main switch in a pulse-by-pulse manner according to a pulse-by-pulse control signal based on the output of the time difference detector.
摘要翻译： DC转换器包括：时间差检测器，用于检测主开关在辅助开关断开后提供最小电压的点与主开关导通的点之间的时间差;积分器，时差检测器，以及根据积分器的输出和时差检测器的输出来控制主开关的接通点的第一延迟电路。第一延迟电路用于根据积分器的输出使时差检测器的输出最小化，并根据逐脉冲控制信号以逐脉冲的方式控制主开关的接通点基于时差检测器的输出。

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