发明名称 |
AC voltage detection circuit and method, charging circuit and method, chopper circuit and chopping method, chopper charging circuit and method, electronic apparatus, and timepiece |
摘要 |
<p>In an AC voltage detection circuit, a chopper charging circuit converts an induced voltage of an AC generator to a chopper voltage and charges a main capacitor. When the chopper voltage becomes a predetermined voltage or less, the chopper charging circuit charges an auxiliary capacitor and detects a power generation state of the AC generator at an early stage based on a potential obtained by adding the potential between output terminals of the AC generator and the auxiliary capacitor and starts the charging. <IMAGE></p> |
申请公布号 |
EP1096640(A2) |
申请公布日期 |
2001.05.02 |
申请号 |
EP20000309060 |
申请日期 |
2000.10.16 |
申请人 |
SEIKO EPSON CORPORATION |
发明人 |
SHINKAWA, OSAMU |
分类号 |
G04G19/02;H02J7/14;H02M3/158;H02M7/217;(IPC1-7):H02J7/14 |
主分类号 |
G04G19/02 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|