-
公开(公告)号：US20210399644A1
公开(公告)日：2021-12-23
申请号：US17233948
申请日：2021-04-19
发明人： Yukihiro NISHIKAWA
IPC分类号： H02M3/335
摘要： A power conversion device includes a controller configured to alternately turn on a second upper arm and a second lower arm of a first bridge circuit such that on-times thereof do not overlap each other to increase power stored in a resonance capacitor of the first bridge circuit in a state in which a first leg of the first bridge circuit is turned off when transmitting power from a second bridge circuit to the first bridge circuit and performing step-up operation.
-
2.发明申请SWITCHING POWER SUPPLY SYSTEM AND CONTROL CIRCUIT OF THE SWITCHING POWER SUPPLY SYSTEM 有权切换电源系统和开关电源系统的控制电路公开(公告)号：US20140043868A1
公开(公告)日：2014-02-13
申请号：US13940357
申请日：2013-07-12
IPC分类号： H02M3/335
CPC分类号： H02M3/335 , H02M3/33507 , H02M3/33515 , H02M2001/0032 , Y02B70/16
摘要： A switching power supply system includes a transformer having a primary winding, a secondary winding and a tertiary winding, a switching device inputted to the primary winding carrying out switching operation on the basis of a first control signal or a second control signal, an output voltage producing section rectifying and smoothing a voltage generated in the secondary winding to produce an output voltage, an output voltage detecting section producing an output voltage detection signal based on a voltage generated in the tertiary winding, a checking pulse generator generating pulses of the first control signal, and a switching controlling section producing the second control signal on the basis of the output voltage detection signal. The switching power supply system is capable of carrying out stable control of the output voltage on the secondary winding side of the transformer with a low power loss.
摘要翻译： 开关电源系统包括具有初级绕组，次级绕组和三级绕组的变压器，输入到初级绕组的开关装置，其基于第一控制信号或第二控制信号进行开关操作，输出电压 对所述次级绕组中产生的电压进行整流和平滑以产生输出电压;输出电压检测部分，基于在所述三级绕组中产生的电压产生输出电压检测信号;检测脉冲发生器，产生所述第一控制信号的脉冲 以及基于输出电压检测信号产生第二控制信号的开关控制部。 开关电源系统能够以低功率损耗对变压器的次级绕组侧的输出电压进行稳定的控制。
-
公开(公告)号：US20230134040A1
公开(公告)日：2023-05-04
申请号：US18088963
申请日：2022-12-27
摘要： This power conversion device includes a control unit that controls a switching operation of a switching element of the inverter unit. The control unit is configured to switch between frequency modulation control and phase shift control, based on the output from the output converter unit, and execute. Then, the control unit is configured to, when switching between frequency modulation control and phase shift control, execute overlap control for executing the phase shift control while executing the frequency modulation control, in a predetermined switching operation range.
-
4.发明申请COOLING STRUCTURE FOR MAGNETIC COMPONENT AND POWER CONVERTER PROVIDED THEREWITH 审中-公开用于磁性元件和功率转换器的冷却结构公开(公告)号：US20150348694A1
公开(公告)日：2015-12-03
申请号：US14823504
申请日：2015-08-11
IPC分类号： H01F27/08
CPC分类号： H01F27/08 , H01F27/06 , H01F27/085 , H01F27/325 , H02M7/003 , H05K7/20909
摘要： A cooling structure for cooling a magnetic component, includes a housing adapted to house the magnetic component; a cold air flow path space arranged in the housing for a cold air to flow therethrough; an internal fan disposed inside the housing for flowing the cold air; and an attachment member adapted to fix the magnetic component mounted on a bottom portion of the housing at a position facing a suction side of the internal fan in the cold air flow path space, so that the cold air generated on the suction side of the internal fan passes inside the magnetic component. The bottom portion of the housing mounted with the magnetic component is a cooling body.
摘要翻译： 用于冷却磁性部件的冷却结构包括适于容纳磁性部件的壳体; 布置在所述壳体中用于冷空气流过的冷空气流动通道空间; 设置在所述壳体内部以使冷空气流动的内部风扇; 以及安装构件，其适于将安装在所述壳体的底部的所述磁性部件固定在所述冷气流路径空间内面对所述内部风扇的吸入侧的位置，使得在所述内部风扇的吸入侧产生的冷气 风扇通过磁性部件。 安装有磁性部件的壳体的底部是冷却体。
-
公开(公告)号：US20150216090A1
公开(公告)日：2015-07-30
申请号：US14680501
申请日：2015-04-07
IPC分类号： H05K7/20
CPC分类号： H05K7/20927 , H05K7/20154 , H05K7/202 , H05K7/20909 , H05K7/20918
摘要： A cooling device includes a plurality of side wall fins formed on an outer surface of a first side wall of a housing, and a plurality of bottom fins formed on a bottom surface of a bottom portion of the housing. A cover member covers the side wall fins and bottom fins from an outer side to form side wall and bottom cooling channels. A chamber is provided that forms a fluid introduction chamber in a direction facing a second side wall so as to communicate with the side wall cooling channel and the bottom cooling channel. A coolant supply device is externally attached to the chamber so as to supply a coolant to the fluid introduction chamber. The side wall fins and the bottom fins are formed in predetermined shapes to adjust an amount of the coolant in the side wall cooling channel and the bottom cooling channel.
摘要翻译： 冷却装置包括形成在壳体的第一侧壁的外表面上的多个侧壁翅片和形成在壳体的底部的底部表面上的多个底部翅片。 盖构件从外侧覆盖侧壁翅片和底部翅片，以形成侧壁和底部冷却通道。 提供一个腔室，该腔室在朝向第二侧壁的方向上形成流体导入室，以便与侧壁冷却通道和底部冷却通道连通。 冷却剂供应装置外部附接到腔室，以便向流体引入室供应冷却剂。 侧壁翅片和底部翅片形成为预定形状以调节侧壁冷却通道和底部冷却通道中的冷却剂的量。
-
6.发明申请ELECTRONIC EQUIPMENT COOLING DEVICE AND POWER CONVERTER HAVING ELECTRONIC EQUIPMENT COOLING DEVICE 有权电子设备冷却装置和具有电子设备冷却装置的电力转换器公开(公告)号：US20150216077A1
公开(公告)日：2015-07-30
申请号：US14680559
申请日：2015-04-07
IPC分类号： H05K7/20
CPC分类号： H05K7/20145 , H02M7/003 , H05K7/202 , H05K7/20263 , H05K7/20272 , H05K7/20909 , H05K7/20918 , H05K7/20927
摘要： An electronic equipment cooling device is provided, which has housing in which heat-generating components are housed, and which can cool surfaces of the housing. A blower fan blows air toward the surfaces via a chamber room. An inclined flat plate-like partition portion is provided inside the chamber room so as to distribute a desired amount of air corresponding to a heat generating ratio of the respective surfaces.
摘要翻译： 提供一种电子设备冷却装置，其具有容纳发热部件的壳体，并且能够冷却壳体的表面。 鼓风机通过室室将空气吹向表面。 在室室内部设置倾斜的平板状分隔部，以分配与各个面的发热率对应的所需量的空气。
-
7.发明申请公开(公告)号：US20190312519A1
公开(公告)日：2019-10-10
申请号：US16279202
申请日：2019-02-19
发明人： Takashi IIDA , Yukihiro NISHIKAWA
IPC分类号： H02M3/335
摘要： An isolated DC/DC converter includes: DC/AC converter; an isolation transformer; a rectifier circuit; and a control unit. The control unit includes a DC input power calculation unit that calculates a DC input power of the DC/AC converter; a first adjustment unit that calculates a DC input power command value such that a DC output voltage detection value follows a DC output voltage command value; an input power limit unit that limits an upper limit value of the DC input power command value to a predetermined value and output the DC input power command value; a second adjustment unit that calculates a DC output power command value such that a DC input power calculation value follows the DC input power command value; and a drive pulse generation unit that generates drive pulses for semiconductor switching device based on the DC output power command value.
-
公开(公告)号：US20150245537A1
公开(公告)日：2015-08-27
申请号：US14680053
申请日：2015-04-06
IPC分类号： H05K7/20
CPC分类号： H05K7/20145 , H01F27/085 , H05K7/202 , H05K7/2039 , H05K7/20909
摘要： Provided is a cool air flow space in which cool air, that is generated by an inner fan disposed inside a housing, flows in the housing. An attachment member mounts a magnetic component on a bottom portion of the housing at a position within the cool air flow space. The attachment member includes a top plate and a pair of legs that extends downward from the top plate and that is fixed to the bottom portion.
摘要翻译： 提供了一种冷空气流动空间，其中由设置在壳体内部的内部风扇产生的冷空气在壳体中流动。 附接构件在冷空气流动空间内的位置处将壳体的底部上的磁性部件安装在壳体的底部。 附接构件包括顶板和从顶板向下延伸并且固定到底部的一对腿。
-
公开(公告)号：US20140104890A1
公开(公告)日：2014-04-17
申请号：US14018882
申请日：2013-09-05
IPC分类号： H02M3/335
CPC分类号： H02M3/33584 , H02M3/3376 , H02M2001/0058 , H02M2007/4815 , Y02B70/1433 , Y02B70/1441 , Y02B70/1491
摘要： A bi-directional DC/DC converter comprises bridge circuits connected to DC voltage sources, an isolation transformer, an LC resonance circuit, and detection circuits for detecting voltages and currents of the DC voltage sources. A control circuit in the power flow from a first DC voltage source to a second DC voltage source changes over between fixed frequency control and frequency modulation control according to the magnitude of a control variable, and a control circuit in the power flow from a second DC voltage source to the first DC voltage source changes over between fixed frequency control and frequency modulation control according to the magnitude of another control variable. Thus, the bi-directional DC/DC converter can be applied to devices with a wide range of input and output voltages.
摘要翻译： 双向DC / DC转换器包括连接到直流电压源的桥接电路，隔离变压器，LC谐振电路和用于检测直流电压源的电压和电流的检测电路。 从第一DC电压源到第二DC电压源的功率流中的控制电路根据控制变量的大小和来自第二DC的功率流中的控制电路在固定频率控制和频率调制控制之间改变 第一直流电压源的电压源根据另一个控制变量的幅度在固定频率控制和频率调制控制之间变化。 因此，双向DC / DC转换器可以应用于具有宽范围的输入和输出电压的器件。
-
公开(公告)号：US20130141947A1
公开(公告)日：2013-06-06
申请号：US13677275
申请日：2012-11-14
IPC分类号： H02M3/335
CPC分类号： H02M3/33523 , H02M2001/0032 , Y02B70/16
摘要： A flyback type switching power supply includes between P and N of a direct current output a sudden load change detector circuit, which normally has no power consumption, that detects only a transient fluctuation of a direct current output voltage, and starts the switching of a primary side semiconductor switch when there is no load or a light load, even when the semiconductor switch is in an off state, thereby enabling the detection of the direct current output voltage in a tertiary winding, and suppressing a drop in the direct current output voltage.
摘要翻译： 反激式开关电源包括在直流输出的P和N之间输出通常没有功率消耗的突然负载变化检测器电路，其仅检测直流输出电压的瞬时波动，并且开始初级 即使当半导体开关处于断开状态时，即使没有负载或轻负载，也能够检测三次绕组中的直流输出电压，并且抑制直流输出电压的下降。
-
-
-
-
-
-
-
-
-
搜索结果
11 条记录 (耗时 0.012 秒)