发明名称 POWER SUPPLY UNIT
摘要 PROBLEM TO BE SOLVED: To provide a power supply unit which is excellent in power saving by suspending the oscillation of a control IC in an unloaded condition. SOLUTION: The power supply unit includes a secondary battery; a Hall element to which electric power is supplied from the secondary battery, and which is turned on and off through magnetic coupling by attachment and detachment of a load device; a photocoupler which is turned on and off by the Hall element; and a semiconductor switching element for power supply of the control IC which is turned on and off by an output of the photocoupler, and turns on and off a power terminal of the control IC. COPYRIGHT: (C)2006,JPO&NCIPI
申请公布号 JP2006211852(A) 申请公布日期 2006.08.10
申请号 JP20050022425 申请日期 2005.01.31
申请人 MATSUSHITA ELECTRIC IND CO LTD 发明人 ICHISE TOSHIHIKO;KOSHIBA NOBUHARU;TAKATSU KATSUMI
分类号 H02M3/28 主分类号 H02M3/28
代理机构 代理人
主权项
地址