专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US07852647B2 Switching power supply digital control circuit protecting from magnetic saturation effects 有权
标题翻译：开关电源数字控制电路，防止磁饱和效应
公开(公告)号：US07852647B2
公开(公告)日：2010-12-14
申请号：US12760628
申请日：2010-04-15
申请人： Takayoshi Nishiyama , Takashi Hara , Koichi Ueki
发明人： Takayoshi Nishiyama , Takashi Hara , Koichi Ueki
IPC分类号： H02M7/44 , G05F1/56
CPC分类号： H02M1/40 , H02M3/33515 , H02M3/3376 , H02M2001/0012
摘要： A switching power supply apparatus includes a transformer or an inductor, a switching element connected to the transformer or the inductor and configured to perform switching of an input power supply, and a switching control circuit including a digital control circuit configured to sample voltage values and/or current values and control on and off of the switching element in accordance with the voltage values and/or current values. The number of points of sampling is set to n or more points, where n is an integer greater than 3, in an ON period of the switching element except at around a turn-on point or a turn-off point of the switching element. The presence or absence of magnetic saturation of the transformer or the inductor is detected on the basis of whether or not a slope of change in current value over time is larger than a predetermined value, and circuit operation is protected from the effect of magnetic saturation. Thus, the presence or absence of magnetic saturation can be rapidly and precisely detected without the influence of switching noise.
摘要翻译：开关电源装置包括变压器或电感器，连接到变压器或电感器并且被配置为执行输入电源的切换的开关元件以及包括数字控制电路的开关控制电路，该数字控制电路被配置为对电压值和/ 或当前值，并根据电压值和/或电流值控制开关元件的导通和关断。在开关元件的导通周期内，除了开关元件的导通点或关断点之外，将采样点数设定为n以上，其中n为大于3的整数。基于电流值随时间变化的斜率是否大于预定值来检测变压器或电感器的磁饱和的存在或不存在，并且保护电路操作免受磁饱和的影响。因此，不受开关噪声的影响，可以快速，精确地检测磁饱和的存在或不存在。

2. 发明授权

US07868584B2 DC-DC converter 有权
标题翻译： DC-DC转换器
公开(公告)号：US07868584B2
公开(公告)日：2011-01-11
申请号：US12839461
申请日：2010-07-20
申请人： Takashi Hara , Takayoshi Nishiyama , Koichi Ueki
发明人： Takashi Hara , Takayoshi Nishiyama , Koichi Ueki
IPC分类号： H02J7/14 , H02J7/00 , H02J7/16
CPC分类号： H02M3/33592 , B60L11/14 , B60L11/1864 , B60L2210/10 , H02J7/0054 , H02J7/1423 , H02J2007/0059 , Y02T10/70 , Y02T10/7016 , Y02T10/7061 , Y02T10/7077 , Y02T10/7216 , Y02T10/92
摘要： A DC-DC converter includes an inductor, a capacitor, an output voltage detection circuit, and a synchronous rectification circuit including a rectifier-side synchronous rectifier element and a commutator-side synchronous rectifier element. The commutator-side synchronous rectifier element is turned on so as to pass a current through a closed loop composed of the commutator-side synchronous rectifier element, the inductor, and a second secondary battery. The characteristic evaluation of the second secondary battery is performed on the basis of the decrease in a detection voltage Vout of an output voltage Vo. As a result, it is possible to determine the effective capacity or characteristic degradation state of the second secondary battery with a circuit to charge the second secondary battery without using a dedicated circuit.
摘要翻译： DC-DC转换器包括电感器，电容器，输出电压检测电路和包括整流器侧同步整流元件和换向器侧同步整流元件的同步整流电路。换向器侧同步整流元件导通，以使电流通过由换向器侧同步整流元件，电感器和第二二次电池组成的闭环。基于输出电压Vo的检测电压Vout的降低来进行第二二次电池的特性评价。结果，可以在不使用专用电路的情况下利用对第二二次电池充电的电路来确定第二二次电池的有效容量或特性劣化状态。

3. 发明申请

US20080170418A1 DC-DC CONVERTER 审中-公开
标题翻译： DC-DC转换器
公开(公告)号：US20080170418A1
公开(公告)日：2008-07-17
申请号：US11961284
申请日：2007-12-20
申请人： Takayoshi Nishiyama , Hiroshi Takemura , Koichi Ueki
发明人： Takayoshi Nishiyama , Hiroshi Takemura , Koichi Ueki
IPC分类号： H02M3/335
CPC分类号： H02M3/337 , H02M2001/0058 , Y02B70/1433 , Y02B70/1491
摘要： A DC-DC converter includes a resonant coil (Lr) for zero voltage switching, the resonant coil being connected in series to a primary winding (Np), and a full-bridge switching circuit driven by phase shift control. The DC-DC converter includes a first regenerative diode (D7) disposed between a connection between the primary winding (Np) and the resonant coil (Lr) and a first terminal of an input power supply (Vin) and a second regenerative diode (D8) disposed between the connection and a second terminal of the input power supply (Vin). This structure enables a surge resulting from a reverse recovery current in rectifier diodes (D1, D2) at the secondary side to be regenerated to the input power supply via the regenerative diodes (D7, D8), thus reducing a surge voltage applied to the rectifier diodes (D1, D2). As a result, a rectifier diode that has a low breakdown voltage and a small forward voltage drop can be used. The loss caused by a forward current in the rectifier diodes can be reduced. Additionally, the loss in the regenerative diodes (D7, D8) can also be reduced, compared with when a snubber circuit is provided in the secondary side.
摘要翻译： DC-DC转换器包括用于零电压开关的谐振线圈（Lr），谐振线圈与初级绕组（Np）串联连接，以及通过相移控制驱动的全桥开关电路。 DC-DC转换器包括设置在初级绕组（Np）和谐振线圈（Lr）之间的连接和输入电源（Vin）和第二再生二极管（Vin）的第一端子之间的第一再生二极管（D 7） D8）设置在输入电源（Vin）的连接和第二端子之间。这种结构使得在次级侧的整流二极管（D1，D2）中的反向恢复电流产生的浪涌将通过再生二极管（D 7，D 8）再生成输入电源，从而降低浪涌电压施加到整流二极管（D1，D2）。因此，可以使用具有低击穿电压和小正向压降的整流二极管。可以减少由整流二极管中的正向电流引起的损耗。此外，与在次级侧设置缓冲电路相比，再生二极管（D 7，D 8）的损耗也可以减小。

4. 发明授权

US07821797B2 Isolated DC-DC converter 有权
标题翻译：隔离式DC-DC转换器
公开(公告)号：US07821797B2
公开(公告)日：2010-10-26
申请号：US12688041
申请日：2010-01-15
申请人： Takayoshi Nishiyama , Koichi Ueki
发明人： Takayoshi Nishiyama , Koichi Ueki
IPC分类号： H02M3/335
CPC分类号： H02M3/3376 , H02M2001/0019
摘要： A switching circuit arranged to switch the input of an input power supply is connected to a primary winding of a transformer at a primary side of the transformer. A digital control circuit including a switching controller arranged to output control pulses to the switching circuit and a rectifying/smoothing circuit connected to secondary windings of the transformer are disposed at a secondary side of the transformer. The digital control circuit outputs the control pulses via a pulse transformer, calculates the input power-supply voltage on the basis of the on-duty cycle of the control pulses, the output voltage, and the ratio of the number of turns of the primary winding to the number of turns of the secondary windings of the transformer, and performs converter control in accordance with the calculated input power-supply voltage.
摘要翻译：布置成切换输入电源的输入的开关电路在变压器的初级侧连接到变压器的初级绕组。包括切换控制器的数字控制电路设置在变压器的次级侧，所述开关控制器被布置为向开关电路输出控制脉冲和与变压器的次级绕组连接的整流/平滑电路。数字控制电路通过脉冲变压器输出控制脉冲，根据控制脉冲的占空比，输出电压和初级绕组的匝数比来计算输入电源电压与变压器的次级绕组的匝数相关，并根据计算的输入电源电压进行转换器控制。

5. 发明授权

US08276007B2 Processor and switching power supply apparatus 有权
标题翻译：处理器和开关电源装置
公开(公告)号：US08276007B2
公开(公告)日：2012-09-25
申请号：US12814567
申请日：2010-06-14
申请人： Takashi Hara , Koichi Ueki
发明人： Takashi Hara , Koichi Ueki
IPC分类号： G06F1/00 , G06F13/12 , G05F1/40 , G05F1/00 , H03K17/13 , H01F17/00 , H02M1/12
CPC分类号： H02M3/33515
摘要： A processor includes analog signal input ports, an A/D conversion unit, and an ALU in a stage subsequent to the A/D conversion unit, separately from a CPU. The ALU not only stores a comparison result in a RAM independently of the CPU, but also compares an output value of the A/D conversion unit with a reference value set in the RAM, and interrupts the CPU or issues a command to a PWM generator in accordance with a flag based on the comparison result. This realizes high-speed processing in accordance with a change in an analog signal, although the processor has a low cost and a low clock frequency overall.
摘要翻译：处理器包括模拟信号输入端口，A / D转换单元和在A / D转换单元之后的级中的ALU，与CPU分开。 ALU不仅将比较结果存储在与CPU无关的RAM中，还将A / D转换单元的输出值与RAM中设置的参考值进行比较，并中断CPU或向PWM发生器发出命令根据比较结果的标志。尽管处理器的整体成本低，时钟频率低，但是根据模拟信号的变化实现高速处理。

6. 发明授权

US09350238B2 Power supply device for vehicle including a boosting converter circuit 有权
标题翻译：一种用于车辆的电源装置，包括升压转换器电路
公开(公告)号：US09350238B2
公开(公告)日：2016-05-24
申请号：US13090287
申请日：2011-04-20
申请人： Takashi Hara , Masashi Ikenari , Koichi Ueki
发明人： Takashi Hara , Masashi Ikenari , Koichi Ueki
IPC分类号： G05F1/00 , H02M3/158 , H02M1/42 , H02J7/14 , H02M1/32 , F02N11/08
CPC分类号： H02M3/158 , F02N11/0814 , F02N11/0862 , F02N2250/02 , H02J7/1438 , H02M1/32 , H02M1/4225
摘要： A power supply device is provided for a vehicle having an idling-stop function, the power supply device including a boosting converter circuit with small loss that compensates for a voltage drop of a battery during starting of the engine and performing a protection function against a case in which the polarities of the battery are mistakenly connected in reverse. A series circuit including two MOSFETs serially connected to one another and an inductor is connected to the ends of a DC power source. A diode is connected to the connection point between the two MOSFETS serially connected to one another and the inductor, and a capacitor is connected in parallel to the two MOSFETS serially connected to one another. The two MOSFETs are serially connected such that the polarities of respective body diodes thereof are opposite to each other.
摘要翻译：为具有怠速停止功能的车辆提供电源装置，所述电源装置包括具有小损耗的升压转换器电路，其补偿在发动机起动期间电池的电压降并且对壳体执行保护功能其中电池的极性被错误地相反地连接。包括串联连接的两个MOSFET和电感器的串联电路连接到直流电源的端部。二极管连接到彼此串联连接的两个MOSFET之间的连接点和电感器，并且电容器并联连接到彼此串联连接的两个MOSFET。两个MOSFET串联连接，使得其各自的体二极管的极性彼此相反。

7. 发明申请

US20050047052A1 Electromagnetic apparatus drive apparatus 失效
标题翻译：电磁装置驱动装置
公开(公告)号：US20050047052A1
公开(公告)日：2005-03-03
申请号：US10499445
申请日：2002-12-25
申请人： Koichi Ueki , Kimitada Ishikawa
发明人： Koichi Ueki , Kimitada Ishikawa
IPC分类号： H01F7/18 , H01H47/32 , H02M7/12 , H01H47/00
CPC分类号： H01F7/18 , H01F7/1844 , H01F2007/1888 , H01F2007/1894 , H01H47/325
摘要： Conventionally, a non-conductive period is provided in a region in the vicinity of zero of an AC power voltage via a voltage detection circuit 14 to turn off reliably. The FET 17 maintains the ON state within several switching cycles after the non-conductive interval to rapidly restore the magnetizing coil current, so that the magnetizing coil current rapidly increases. An object is to suppress beat noise in the electromagnetic device. Within a prescribed interval following the non-conductive interval, a partial voltage at a resistor 19 of an output V2 of a mono-stable circuit 20 is added as a bias voltage to a detection voltage of a magnetizing coil current at a resistor 18, and is detected by the IC 11. The IC 11 drives a FET 17 with a constant switching period after the non-conductive interval, thereby preventing the increase in the magnetizing coil current and resolving the problem.
摘要翻译：通常，通过电压检测电路14在交流电源电压零点附近的区域中设置非导通时段，以使其可靠地断开。 FET 17在非导通间隔之后的几个开关周期内保持导通状态，以快速恢复励磁线圈电流，使得励磁线圈电流快速增加。目的是抑制电磁装置中的搏动噪声。在非导通间隔之后的规定间隔内，单稳态电路20的输出V2的电阻器19的分压作为偏置电压被加到电阻器18处的励磁线圈电流的检测电压，并且由IC 11检测.IC 11在非导通间隔之后以恒定的开关周期驱动FET 17，从而防止磁化线圈电流的增加并解决问题。

8. 发明授权

US07042692B2 Electromagnetic apparatus drive apparatus 失效
标题翻译：电磁装置驱动装置
公开(公告)号：US07042692B2
公开(公告)日：2006-05-09
申请号：US10499445
申请日：2002-12-25
申请人： Koichi Ueki , Kimitada Ishikawa
发明人： Koichi Ueki , Kimitada Ishikawa
IPC分类号： H01H47/00
CPC分类号： H01F7/18 , H01F7/1844 , H01F2007/1888 , H01F2007/1894 , H01H47/325
摘要： Conventionally, a non-conductive period is provided in a region in the vicinity of zero of an AC power voltage via a voltage detection circuit 14 to turn off reliably. The FET 17 maintains the ON state within several switching cycles after the non-conductive interval to rapidly restore the magnetizing coil current, so that the magnetizing coil current rapidly increases. An object is to suppress beat noise in the electromagnetic device. Within a prescribed interval following the non-conductive interval, a partial voltage at a resistor 19 of an output V2 of a mono-stable circuit 20 is added as a bias voltage to a detection voltage of a magnetizing coil current at a resistor 18, and is detected by the IC 11. The IC 11 drives a FET 17 with a constant switching period after the non-conductive interval, thereby preventing the increase in the magnetizing coil current and resolving the problem.
摘要翻译：通常，通过电压检测电路14在交流电源电压零点附近的区域中设置非导通时段，以使其可靠地断开。 FET 17在非导通间隔之后的几个开关周期内保持导通状态，以快速恢复励磁线圈电流，使得励磁线圈电流快速增加。目的是抑制电磁装置中的搏动噪声。在非导通间隔之后的规定间隔内，将单稳态电路20的输出V 2的电阻器19的分压作为偏置电压加到电阻器18的励磁线圈电流的检测电压，并且由IC 11检测.IC 11在非导通间隔之后以恒定的开关周期驱动FET 17，从而防止了磁化线圈电流的增加并解决了问题。

9. 发明授权

US5684445A Power transformer 失效
标题翻译：电力变压器
公开(公告)号：US5684445A
公开(公告)日：1997-11-04
申请号：US614009
申请日：1996-03-12
申请人： Yasuo Kobayashi , Koichi Ueki
发明人： Yasuo Kobayashi , Koichi Ueki
IPC分类号： H01F27/28 , H01F27/32 , H01F30/10 , H01F27/30
CPC分类号： H01F27/324 , H01F27/2866 , H01F30/10
摘要： A power transformer is formed of a pair of cores having wiring storage portions, at least one primary winding formed of a spirally wound flat ring having a pair of primary leading portions, at least one secondary winding formed of a flat plate, at least one spacer interposed between the flat ring and the flat plate, and an insulation member mounted in the wiring storage portions of the cores. The flat ring, flat plate and at least one spacer for insulating the flat ring and the flat plate are housed in the insulation member. The insulation member has an opening for allowing the primary leading portions to pass therethrough. In order to insulate the primary leading portions from burrs of the secondary winding, a protrusion may be formed on an outer periphery of the spacer to be located under the primary leading portions, or a cut-out portion may be formed in the flat plate.
摘要翻译：电力变压器由具有布线存储部分的一对芯体形成，至少一个初级绕组由具有一对初级引导部分的螺旋卷绕平环形成，至少一个由平板形成的次级绕组，至少一个间隔件介于平环和平板之间，以及安装在芯的布线存储部分中的绝缘构件。扁平环，平板和用于绝缘平环和平板的至少一个间隔件容纳在绝缘构件中。绝缘构件具有用于使一次引导部分通过的开口。为了将初级引导部分与次级绕组的毛刺绝缘，可以在间隔件的外周上形成突起，以将其定位在主引导部分下方，或者可以在平板中形成切口部分。

10. 发明授权

US5479329A Switching power supply having output terminal disconnection detecting circuit 失效
标题翻译：具有输出端子断开检测电路的开关电源
公开(公告)号：US5479329A
公开(公告)日：1995-12-26
申请号：US389455
申请日：1995-02-16
申请人： Masahiro Motonobu , Koichi Ueki , Yasuo Kobayashi
发明人： Masahiro Motonobu , Koichi Ueki , Yasuo Kobayashi
IPC分类号： G05F1/10 , G01R31/42 , G08C19/02 , H02M3/28 , H02M3/00 , H02M3/335
CPC分类号： G01R31/42 , G08C19/02 , H02M3/28 , H02M2001/0025
摘要： In a switching power supply, electric current is supplied through a switching device to a load located away from the switching power supply. The electric current at the load is detected by a remote detecting device at remote detecting terminals. The remote detecting device includes a differential amplifier and a comparator connected to an output terminal of the differential amplifier. The comparator compares an output voltage of the differential amplifier with a reference voltage and outputs an alarm signal when the output voltage of the differential amplifier is lower than the reference voltage. A control device is connected to the switching device, the output terminal of the remote detecting device and a first reference voltage supply device. The control device changes ON-OFF duty ratio of the switching device by comparing the output voltage of the differential amplifier with the first reference voltage to control an output voltage of the switching device at a predetermined value. A first overvoltage protecting device is connected to the control device for protecting the load from overvoltage by monitoring the output of the switching device.
摘要翻译：在开关电源中，通过开关装置向位于远离开关电源的负载提供电流。负载时的电流由远程检测装置在远程检测端子处检测。该远程检测装置包括差分放大器和连接到差分放大器的输出端的比较器。比较器将差分放大器的输出电压与参考电压进行比较，当差分放大器的输出电压低于参考电压时，输出报警信号。控制装置连接到开关装置，远程检测装置的输出端子和第一参考电压供应装置。控制装置通过将差分放大器的输出电压与第一参考电压进行比较来改变开关装置的导通截止占空比，以将开关装置的输出电压控制在预定值。第一过电压保护装置连接到控制装置，通过监视开关装置的输出来保护负载免受过电压。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式