发明名称 |
Control circuit for a vibrating membrane |
摘要 |
The present invention relates to a control circuit of a vibrating membrane excited by a solenoid in series with a d.c. supply and a controlled switch. A capacitor is disposed across a series circuit including the solenoid and the switch associated with opening means in the vicinity of a zero crossing of the current in the inductance.
|
申请公布号 |
US6380847(B1) |
申请公布日期 |
2002.04.30 |
申请号 |
US19980082926 |
申请日期 |
1998.05.21 |
申请人 |
SGS-THOMSON MICROELECTRONICS S.A. |
发明人 |
BREMOND ANDRé;MERCERON PHILIPPE |
分类号 |
G10K9/15;(IPC1-7):G08B3/00 |
主分类号 |
G10K9/15 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|