发明授权
- 专利标题: High-efficiency incandescent lamp power controller
- 专利标题(中): 高效率白炽灯电源控制器
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申请号: US550755申请日: 1996-02-26
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公开(公告)号: US5859506A公开(公告)日: 1999-01-12
- 发明人: Guido Lemke
- 申请人: Guido Lemke
- 专利权人: Lemke; Guido
- 当前专利权人: Lemke; Guido
- 主分类号: H05B39/04
- IPC分类号: H05B39/04 ; H05B37/02
摘要:
A high-efficiency low-cost electronic controller circuit for powering incandescent lamps which provides constant RMS voltage output from a battery or other varying output DC supply. The controller prolongs lamp life by limiting the cold filament in-rush power thereby reducing filament thermal shock deterioration. The controller further prolongs lamp life by supplying rectified AC power which reduces lamp filament embrittlement. A supply voltage monitor indicates a low-battery condition by flashing the lamp. A battery tester enables determination of the battery voltage which is indicated by pulse-coded modulation of the incandescent lamp brightness. A transistor contained in the controller eliminates the usual high-current mechanical power switch.
公开/授权文献
- US5017898A Electromagnetic relay 公开/授权日:1991-05-21