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1. 发明申请

US20080174276A1 SWITCHING POWER SUPPLY 有权
标题翻译：切换电源
公开(公告)号：US20080174276A1
公开(公告)日：2008-07-24
申请号：US12016219
申请日：2008-01-18
申请人： Fumikazu TAKAHASHI , Akihiko KANOUDA , Masahiro HAMAOGI , Yoshihide TAKAHASHI
发明人： Fumikazu TAKAHASHI , Akihiko KANOUDA , Masahiro HAMAOGI , Yoshihide TAKAHASHI
IPC分类号： H02J9/00 , H02J7/02
CPC分类号： H02J9/061 , H02M3/33561 , Y10T307/625
摘要： To provide a smaller and more efficient switching power supply 10. The switching power supply 10 according to the present invention includes: a high frequency transformer 40; a primary side switching circuit 30 adapted to switch a current flowing through a primary winding 41 of the high frequency transformer 40 to thereby generate predetermined voltages in a secondary winding 42 and an auxiliary winding 43 of the high frequency transformer 40; a secondary side rectifier 50 adapted to rectify a voltage generated in the secondary winding 42 of the high frequency transformer 40 to supply the rectified voltage to a load; a charging circuit 60 adapted to rectify a current flowing through the auxiliary winding 43 of the high frequency transformer 40 and switch the rectified current to thereby charge a secondary battery 70 at a constant current; and a switch 80 provided between the secondary battery 70 and the load, and supplies, when the voltage supplied to the load is interrupted, the voltage of the secondary battery 70 to the load without via the high frequency transformer 40.
摘要翻译：提供更小更高效的开关电源10。根据本发明的开关电源10包括：高频变压器40; 初级侧切换电路30适于切换流过高频变压器40的初级绕组41的电流，从而在高频变压器40的次级绕组42和辅助绕组43中产生预定电压; 适于对在高频变压器40的次级绕组42中产生的电压进行整流以将整流电压提供给负载的次级侧整流器50; 充电电路60，用于对流过高频变压器40的辅助绕组43的电流进行整流，并切换整流电流，从而以恒定电流对二次电池70充电; 以及设置在二次电池70和负载之间的开关80，并且当提供给负载的电压被中断时，不经高频变压器40将二次电池70的电压提供给负载。

2. 发明申请

US20110096576A1 POWER FACTOR CORRECTION DEVICE AND CONTROL METHOD THEREOF 失效
标题翻译：功率因数校正装置及其控制方法
公开(公告)号：US20110096576A1
公开(公告)日：2011-04-28
申请号：US12910318
申请日：2010-10-22
申请人： Fumikazu TAKAHASHI , Masahiro HAMAOGI , Yen-Shin LAI
发明人： Fumikazu TAKAHASHI , Masahiro HAMAOGI , Yen-Shin LAI
IPC分类号： H02M1/12
CPC分类号： H02M1/4225 , Y02B70/126
摘要： Proposed are a power factor correction device and its control method capable of obtaining a stable output as the output of a power supply unit while simplifying and miniaturizing the configuration. In the power factor correction device and the control method thereof including a coil and a switching element, and a control unit for controlling ON/OFF of the switching element, provided are an input voltage detection unit for detecting an input voltage of the power factor correction device, an output voltage detection unit for detecting an output voltage, and a coil current detection unit for detecting a coil current that is generated in the coil pursuant to the ON/OFF operation of the switching element. The control unit predicts an OFF time of the switching element of each switching cycle for controlling the switching element in a critical mode based on a voltage value of the input voltage detected with the input voltage detection unit, a voltage value of the output voltage detected with the output voltage detection unit, and a current value of the coil current detected with the coil current detection unit, and controls the ON/OFF of the switching element based on the prediction result.
摘要翻译：提出的是功率因数校正装置及其控制方法，其能够在简化和小型化配置的同时获得稳定的输出作为电源单元的输出。在功率因数校正装置及其包括线圈和开关元件的控制方法以及用于控制开关元件的导通/截止的控制单元中，提供了用于检测功率因数校正的输入电压的输入电压检测单元装置，用于检测输出电压的输出电压检测单元，以及线圈电流检测单元，用于根据开关元件的接通/断开操作来检测线圈中产生的线圈电流。控制单元基于用输入电压检测单元检测到的输入电压的电压值，预测用于将开关元件控制在临界模式中的开关元件的断开时间，用输出电压检测单元和线圈电流检测单元检测到的线圈电流的电流值，并根据预测结果控制开关元件的接通/断开。

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