公开(公告)号：US20070132406A1

公开(公告)日：2007-06-14

申请号：US10578200

申请日：2005-04-21

申请人： Akeyuki Komatsu ,  Eiji Miyake ,  Kenji Kawataka

发明人： Akeyuki Komatsu ,  Eiji Miyake ,  Kenji Kawataka

IPC分类号： H05B39/00

CPC分类号： G02F1/133604 ,  H01F27/326 ,  H01F38/10 ,  H05B41/2822

摘要： A cold-cathode tube lighting device uniformly lights a plurality of cold-cathode tubes using a common power source, and maintains the luminance of each cold-cathode tube uniformly in the longitudinal direction thereof at high precision. A first block converts a direct-current voltage to one pair of alternating-voltages. Since leakage impedances of step-up transformers are low, the first block functions as one pair of low-impedance power sources. Each second block is connected to each cold-cathode tube. A ballast inductor stabilizes tube current by resonating with a matching capacitor during lighting of the cold-cathode tube. A combined impedance of the matching capacitor and a peripheral stray capacitance is matched with an impedance of the ballast inductor, for each cold-cathode tube. Since a delay circuit shifts phases of two pulse waves with respect to each other, a phase difference between the alternating-voltages is shifted from 180°.

摘要翻译： 冷阴极管照明装置使用公共电源均匀地点亮多个冷阴极管，并且以高精度将每个冷阴极管的亮度均匀地保持在其纵向方向上。 第一块将直流电压转换成一对交流电压。 由于升压变压器的漏电阻较低，所以第一模块作为一对低阻抗功率源起作用。 每个第二块连接到每个冷阴极管。 镇流电感通过在冷阴极管照明期间与匹配的电容器谐振来稳定管电流。 对于每个冷阴极管，匹配电容器和外围杂散电容的组合阻抗与镇流电感器的阻抗匹配。 由于延迟电路相对于彼此移动两个脉冲波的相位，所以交流电压之间的相位差从180°偏移。

公开(公告)号：US20050023988A1

公开(公告)日：2005-02-03

申请号：US10887110

申请日：2004-07-08

申请人： Akeyuki Komatsu ,  Eiji Miyake ,  Kenji Kawataka

发明人： Akeyuki Komatsu ,  Eiji Miyake ,  Kenji Kawataka

IPC分类号： G02F1/13357 ,  F21S2/00 ,  F21Y103/00 ,  H01F38/08 ,  H05B41/02 ,  H05B41/232 ,  H05B41/24 ,  H05B41/282 ,  H05B41/295 ,  H05B37/00

CPC分类号： H05B41/2822 ,  G02F1/133604 ,  G02F2001/133612

摘要： A first block (1) converts a DC voltage (Vi) into an AC voltage (V) of a high frequency, using a high-frequency oscillator circuit (4) and a step-up transformer (5). The first block (1) acts as a low-impedance power supply owing to suppression of leakage flux in the step-up transformer (5). A second block (2) and a third block (3) are connected to each CCFL (20). A ballast inductor (LB) causes the CCFL (20) to shine through the resonance with a matching capacitor (CM), and then maintains the stable lamp current during shining of the CCFL (20). The capacitance of the matching capacitor (CM) is separately adjusted for each CCFL (20), and thereby, the total impedance of the matching capacitor (CM) and the surrounding stray capacitances is matched to the impedance of the series connection of the ballast inductor (LB) and an overcurrent protection capacitor (CP).

摘要翻译： 第一块（1）使用高频振荡电路（4）和升压变压器（5）将直流电压（Vi）转换为高频的交流电压（V）。 由于抑制升压变压器（5）中的漏磁通，第一块（1）用作低阻抗电源。 第二块（2）和第三块（3）连接到每个CCFL（20）。 镇流电感器（LB）使CCFL（20）通过匹配电容器（CM）的谐振发光，然后在CCFL（20）的闪光期间保持稳定的灯电流。 对于每个CCFL（20），匹配电容器（CM）的电容被单独调整，因此匹配电容器（CM）的总阻抗和周围的杂散电容与镇流电感器的串联连接的阻抗匹配 （LB）和过流保护电容（CP）。

公开(公告)号：US08456879B2

公开(公告)日：2013-06-04

申请号：US12935177

申请日：2009-04-07

申请人： Eiji Miyake ,  Akeyuki Komatsu

发明人： Eiji Miyake ,  Akeyuki Komatsu

IPC分类号： H02M7/5387

CPC分类号： H02M7/5387

摘要： Provided is a switching power supply apparatus capable of suppressing heat generation from a power supply to improve the efficiency of conversion during a power supply operation and accurately detecting only a current flowing through a load to achieve more stabile control. Since a first closed loop made up of a fourth diode (27d), a third inductor (25c) and a fourth electronic switch (24d) and a second closed loop made up of a second diode (27b), a first inductor (25a) and a second electronic switch (24b) do not include a fourth inductor (25d) and a second inductor (25b) through which an AC output current supplied to a load (28) flows, an unnecessary current does not flow through the first or second closed loop.

摘要翻译： 提供一种能够抑制来自电源的发热的开关电源装置，以提高电力供给动作时的转换效率，并且仅精确地检测流过负载的电流，以实现更稳定的控制。 由于由第四二极管（27d），第三电感器（25c）和第四电子开关（24d）构成的第一闭环和由第二二极管（27b），第一电感器（25a） 和第二电子开关（24b）不包括提供给负载（28）的AC输出电流流经的第四电感器（25d）和第二电感器（25b），不必要的电流不流过第一或第二电流 闭环。

公开(公告)号：US07038397B2

公开(公告)日：2006-05-02

申请号：US10887110

申请日：2004-07-08

申请人： Akeyuki Komatsu ,  Eiji Miyake ,  Kenji Kawataka

发明人： Akeyuki Komatsu ,  Eiji Miyake ,  Kenji Kawataka

IPC分类号： H05B37/00

CPC分类号： H05B41/2822 ,  G02F1/133604 ,  G02F2001/133612

摘要： A first block (1) converts a DC voltage (Vi) into an AC voltage (V) of a high frequency, using a high-frequency oscillator circuit (4) and a step-up transformer (5). The first block (1) acts as a low-impedance power supply owing to suppression of leakage flux in the step-up transformer (5). A second block (2) and a third block (3) are connected to each CCFL (20). A ballast inductor (LB) causes the CCFL (20) to shine through the resonance with a matching capacitor (CM), and then maintains the stable lamp current during shining of the CCFL (20). The capacitance of the matching capacitor (CM) is separately adjusted for each CCFL (20), and thereby, the total impedance of the matching capacitor (CM) and the surrounding stray capacitances is matched to the impedance of the series connection of the ballast inductor (LB) and an overcurrent protection capacitor (CP).

摘要翻译： 第一块（1）使用高频振荡电路（4）和升压变压器（5）将直流电压（Vi）转换为高频的交流电压（V）。 由于抑制升压变压器（5）中的漏磁通，第一块（1）用作低阻抗电源。 第二块（2）和第三块（3）连接到每个CCFL（20）。 镇流电感器（LB）使CCFL（20）通过匹配电容器（CM）的谐振发光，然后在CCFL（20）的闪光期间保持稳定的灯电流。 对于每个CCFL（20），匹配电容器（CM）的电容被单独调整，因此匹配电容器（CM）的总阻抗和周围的杂散电容与镇流电感器的串联连接的阻抗匹配 （LB）和过流保护电容（CP）。