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公开(公告)号：US07158394B2
公开(公告)日：2007-01-02
申请号：US10547412
申请日：2005-02-10
CPC分类号： H02M1/36 , Y10S323/901
摘要： A switching power supply circuit reduces the time from start-up driving to normal operation while a soft-start is carried out with an output voltage Vout. A soft-start capacitor is charged during the start-up time. After a soft-start voltage Vz has reached a predetermined signal-output starting voltage Vlow, soft start of the output voltage Vout is carried out by controlling the operation based on the soft-start voltage Vz. A time constant for charging the soft-start capacitor is set as a time constant that causes the charge voltage of the soft-start capacitor to sharply increase at least until the soft-start voltage Vz reaches the signal-output starting voltage Vlow after the circuit has started driving, and is switched to a time constant that causes a rising trend of the charge voltage of the soft-start capacitor to become gentle with a predetermined time-constant switching timing. The start-up time is reduced by an amount equivalent to a reduction in the delay time from the start of driving to the start of voltage output.
摘要翻译： 当以输出电压Vout进行软启动时，开关电源电路将从启动驱动到正常操作的时间减少。 在启动时间内，软启动电容器被充电。 在软启动电压Vz达到预定的信号输出启动电压Vlow之后，通过控制基于软启动电压Vz的操作来执行输出电压Vout的软启动。 将软启动电容器充电的时间常数设定为使得软启动电容器的充电电压至少在软启动电压Vz达到信号输出启动电压Vlow之后至少急剧增加的时间常数 开始驱动，并切换到时间常数，使得软启动电容器的充电电压的上升趋势以预定的时间常数切换定时变得平缓。 启动时间减少相当于从开始驱动到开始输出电压的延迟时间的减少量。
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公开(公告)号：US20060164871A1
公开(公告)日：2006-07-27
申请号：US10547412
申请日：2005-02-10
IPC分类号： H02M3/335
CPC分类号： H02M1/36 , Y10S323/901
摘要： A switching power supply circuit reduces the time from start-up driving to normal operation while a soft-start is carried out with an output voltage Vout. A soft-start capacitor is charged during the start-up time. After a soft-start voltage Vz has reached a predetermined signal-output starting voltage Vlow, soft start of the output voltage Vout is carried out by controlling the operation based on the soft-start voltage Vz. A time constant for charging the soft-start capacitor is set as a time constant that causes the charge voltage of the soft-start capacitor to sharply increase at least until the soft-start voltage Vz reaches the signal-output starting voltage Vlow after the circuit has started driving, and is switched to a time constant that causes a rising trend of the charge voltage of the soft-start capacitor to become gentle with a predetermined time-constant switching timing. The start-up time is reduced by an amount equivalent to a reduction in the delay time from the start of driving to the start of voltage output.
摘要翻译： 当以输出电压Vout进行软启动时，开关电源电路将从启动驱动到正常操作的时间减少。 在启动时间内，软启动电容器被充电。 在软启动电压Vz达到预定的信号输出启动电压Vlow之后，通过控制基于软启动电压Vz的操作来执行输出电压Vout的软启动。 将软启动电容器充电的时间常数设定为使得软启动电容器的充电电压至少在软启动电压Vz达到信号输出启动电压Vlow之后至少急剧增加的时间常数 开始驱动，并切换到时间常数，使得软启动电容器的充电电压的上升趋势以预定的时间常数切换定时变得平缓。 启动时间减少相当于从开始驱动到开始输出电压的延迟时间的减少量。
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3.发明授权Surface-mount type switching power-supply unit and mounting method for the same 有权表面贴装式开关电源装置及其安装方法公开(公告)号：US06876555B2
公开(公告)日：2005-04-05
申请号：US10208944
申请日：2002-08-01
IPC分类号： H05K1/18 , H01F27/02 , H01F27/29 , H02M7/06 , H05K1/14 , H05K1/16 , H05K3/30 , H05K3/34 , H05K7/06
CPC分类号： H05K3/303 , H01F27/027 , H01F27/292 , H05K1/141 , H05K1/165 , H05K1/182 , H05K3/3421 , H05K2203/0195 , H05K2203/082 , Y02P70/613 , Y10T29/4913 , Y10T29/53191
摘要： A transformer of a switching power-supply circuit is placed and mounted nearly in the middle area of a circuit board. The transformer is of a low-profile type, and a broad and flat upper surface of the transformer functions as a suction surface for a suction nozzle. When a surface-mount type switching power-supply unit is mounted in a mother board, firstly, the upper surface of the above transformer is held by the suction nozzle, the surface-mount type switching power-supply unit is transferred to a target mounting area on the mother board by the suction nozzle, and the surface-mount type switching power-supply unit is surface mounted in the mother board. Because it is not required to provide a nozzle suction surface for the suction nozzle's exclusive use, transfer molding is not needed, and accordingly a low-profile and low-cost surface-mount type switching power-supply unit can be facilitated.
摘要翻译： 开关电源电路的变压器放置并几乎安装在电路板的中间区域。 变压器是一种薄型，并且变压器的宽而平坦的上表面用作吸嘴的吸力表面。 当表面安装型开关电源单元安装在母板上时，首先，上述变压器的上表面由吸嘴保持，表面安装型开关电源单元被转移到目标安装 通过吸嘴将母板上的区域，表面安装型开关电源单元表面安装在母板上。 由于不需要为吸嘴专门使用喷嘴吸附面，因此不需要传递成型，因此可以促进薄型和低成本的表面贴装型开关电源单元。
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公开(公告)号：US06757174B2
公开(公告)日：2004-06-29
申请号：US10105777
申请日：2002-03-25
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。
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公开(公告)号：US06414861B1
公开(公告)日：2002-07-02
申请号：US09726231
申请日：2000-11-29
IPC分类号： H02H7122
CPC分类号： H02M3/33592 , Y02B70/1475
摘要： A DC-DC converter having a switching element and a synchronous rectifier, the switching element undergoing a switching operation, the converter performing a voltage conversion of an input voltage to provide a converted output voltage at an output/input conversion ratio that is determined by the switching operation of said switching element, the converter delivering the converted output voltage to a load, said DC-DC converter further comprising: a reverse current detector for detecting a reverse current which flows from an output of the converter to an input of the converter, and a reverse current suppressor, the reverse current suppressor controlling the switching operation of said switching element so as to increase the output/input conversion ratio when a reverse current is detected by the reverse current detector, thereby suppressing the reverse current.
摘要翻译： 一种具有开关元件和同步整流器的DC-DC转换器，所述开关元件经历开关操作，所述转换器执行输入电压的电压转换，以提供由输出/输入转换比确定的输出/输入转换比的转换输出电压 所述开关元件的开关操作，所述转换器将转换的输出电压输送到负载，所述DC-DC转换器还包括：反向电流检测器，用于检测从所述转换器的输出流向所述转换器的输入的反向电流， 以及反向电流抑制器，所述反向电流抑制器控制所述开关元件的开关操作，以便当由所述反向电流检测器检测到反向电流时增加所述输出/输入转换比，从而抑制所述反向电流。
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公开(公告)号：US06295214B1
公开(公告)日：2001-09-25
申请号：US09538427
申请日：2000-03-29
IPC分类号： H02M3335
CPC分类号： H02M3/33507 , H02M2001/0009
摘要： A switching power supply unit, which rectifies and smoothes an AC current and an AC voltage from the on-off switching operation of a main switching element to output a DC current and a DC voltage, has an output current detection circuit including a current detection resistor disposed in an intermittent-current flowing path through which a current intermittently flows in sync with the on-off switching operation of the main switching element, a synchronous rectifying a switching element for rectifying a current flowing through the current detection resistor, and a capacitor for charging the current rectified by the synchronous rectifying element, wherein the current flowing through the current detection resistor is charged in the capacitor by a rectifying operation of the synchronous rectifying element, and the charging voltage of the capacitor is outputted as a voltage corresponding to the output current of the switching power supply unit.
摘要翻译： 开关电源单元，其从主开关元件的开 - 关开关操作对AC电流和AC电压进行整流和平滑以输出DC电流和DC电压，具有输出电流检测电路，其包括电流检测电阻器 设置在与主开关元件的通断开关动作同步地间歇地流动的电流的间歇电流流动路径中，对流过电流检测电阻器的电流进行整流的开关元件的同步整流，以及用于 对由同步整流元件整流的电流进行充电，其中流过电流检测电阻器的电流通过同步整流元件的整流操作而被充电到电容器中，并且将电容器的充电电压输出为与输出相对应的电压 开关电源单元的电流。
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7.发明授权Image forming apparatus, method of controlling image forming apparatus, program, and storage medium 有权图像形成装置，图像形成装置的控制方法，程序和存储介质公开(公告)号：US08116643B2
公开(公告)日：2012-02-14
申请号：US12364114
申请日：2009-02-02
申请人： Jun Nagai
发明人： Jun Nagai
IPC分类号： G03G15/08
CPC分类号： G03G15/5025 , G03G15/0856 , G03G15/0893
摘要： An image forming apparatus having a development unit which develops an electrostatic latent image formed on an image carrier to form a visible image, the apparatus has an input unit adapted to accept input of a print job; an analysis unit adapted to analyze contents of image data included in the print job and contents of a print setting for controlling printout based on the image data; a prediction unit adapted to predict, based on an analysis result by the analysis unit, a consumption amount of a developing material necessary to develop an electrostatic latent image by the development unit when an electrostatic latent image based on the image data is formed; and a supply control unit adapted to control, based on the consumption amount of the developing material that is predicted by the prediction unit, a supply unit which supplies the developing material to the development unit.
摘要翻译： 一种图像形成装置，具有显影单元，其形成在图像载体上形成的静电潜像以形成可见图像，所述装置具有适于接收打印作业的输入的输入单元; 分析单元，其适于基于所述图像数据分析所述打印作业中包括的图像数据的内容和用于控制打印输出的打印设置的内容; 预测单元，其适于基于分析单元的分析结果，当形成基于图像数据的静电潜像时，预测由显影单元显影静电潜像所需的显影材料的消耗量; 以及供应控制单元，其适于基于由预测单元预测的显影材料的消耗量来控制向显影单元供应显影材料的供应单元。
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公开(公告)号：US20080205090A1
公开(公告)日：2008-08-28
申请号：US10568480
申请日：2005-09-30
申请人： Jun Nagai
发明人： Jun Nagai
IPC分类号： H02M3/335
CPC分类号： H02M3/33592 , H02M3/33523 , Y02B70/1475
摘要： A secondary-side rectifying and smoothing circuit rectifies and smoothes an output voltage from a secondary coil of a transformer and outputs a rectified and smoothed voltage to the outside. A tertiary-side rectifying and smoothing circuit rectifies and smoothes an output voltage from a tertiary coil to produce a direct-current voltage and detects and outputs the direct-current voltage as a detected voltage of the output voltage from the secondary-side rectifying and smoothing circuit. A control circuit controls the switching operation of a main switching device on the basis of the detected voltage so that the output voltage is stabilized. The secondary-side rectifying and smoothing circuit includes a rectification-side synchronous rectifier and a commutation-side synchronous rectifier as rectifying devices. The tertiary-side rectifying and smoothing circuit includes a commutation-side synchronous rectifier as a rectifying device that rectifies the output voltage from the tertiary coil, the commutation-side synchronous rectifier being switched on when the main switching device is turned off.
摘要翻译： 次级侧整流和平滑电路对来自变压器的次级线圈的输出电压进行整流和平滑，并将整流和平滑的电压输出到外部。 三次侧整流平滑电路对来自三级线圈的输出电压进行整流和平滑以产生直流电压，并且检测并输出直流电压作为来自次级侧整流和平滑的输出电压的检测电压 电路。 控制电路基于检测电压来控制主开关装置的开关动作，使输出电压稳定。 次级侧整流平滑电路包括整流侧同步整流器和整流侧同步整流器作为整流装置。 三次侧整流平滑电路包括整流侧同步整流器作为整流装置，其对来自三级线圈的输出电压进行整流，当主开关器件断开时，换向侧同步整流器接通。
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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。
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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。
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