专利检索 ap:("MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.") AND inv:"KURANUKI, Masaaki" 第 1 页

1.

发明公开
DIRECT-CURRENT POWER SUPPLY AND BATTERY-POWERED ELECTRONIC APPARATUS EQUIPPED WITH THE POWER SUPPLY 审中-公开
标题翻译：直流电源和配备有供电电池驱动的电子设备

公开(公告)号：EP1543599A1

公开(公告)日：2005-06-22

申请号：EP04771385.4

申请日：2004-08-02

申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.

发明人： INOUE, Manabu , ISHII, Takuya , AKAMATSU, Keiji , KURANUKI, Masaaki , AKASHI, Hiroki

IPC分类号： H02J7/00

CPC分类号： H02J7/0065 , H02M3/1582 , H02M2001/0022

摘要： A bypass control section (6) maintains a bypass switch (5) in the ON state during the period when a battery voltage (Vi) is higher than the output voltage (Vo) to an external load (L). Upon falling of the output voltage (Vo) at a desired voltage (ET), a converter control section (4) starts switching control at once, and a step-up chopper (3) promptly starts boost operation. The bypass control section (6) maintains the bypass switch (5) in the ON state from the start of the boost operation of the step-up chopper (3) until the match between the battery voltage (Vi) and the output voltage (Vo).