发明名称 |
Dimmer switch for lighting, comprises chopping transistors and microcomputer which enable a lighting load to be run at low voltage and voltage peaks to be counted to determine mode of operation |
摘要 |
An electrical load (10) typically lighting is supplied from an alternating current source (CA) through a transistor chopping circuit (11,11a) which is part of a dimming switch (12). The dimmer switch includes a microcomputer (13) and a synchronizing circuit (15) which enable the load to be run initially at low voltage, peaks counted and if above a threshold normal operation to be changed from open phase to closed phase
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申请公布号 |
FR2802360(A1) |
申请公布日期 |
2001.06.15 |
申请号 |
FR19990015787 |
申请日期 |
1999.12.14 |
申请人 |
LEGRAND |
发明人 |
LEBLANC DIDIER |
分类号 |
H02M5/257;H02M5/293;H05B39/04;(IPC1-7):H02M5/257;H02M5/45;H02H7/12 |
主分类号 |
H02M5/257 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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