Title:
A DEVICE FOR LIGHTENING SEVERAL FLUORESCENT LAMPS
Document Type and Number:
WIPO Patent Application WO/2009/067927
Kind Code:
A1
Abstract:
A device for lightening several fluorescent lamps includes: an active filter circuit (11), a high frequency rectifier filter circuit (12), a high frequency chopper power output circuit (13) and current phase shift, current limiting, resonance circuits (14,15,16). Fluorescent tube groups are in series with the current phase shift, current limiting, resonance circuits(14,15,16); mains supply is output to high frequency chopper power output circuit (13) through the active filter circuit (11) and high frequency rectifier filter circuit (12) in turn; the high frequency chopper power output circuit (13) provides electric power for two or more thantwo electric current phase shift, current limiting, resonance circuits (14,15,16) which are parallel connected in output loop.
Inventors:
WANG CHI (CN)
Application Number:
PCT/CN2008/073039
Publication Date:
June 04, 2009
Filing Date:
November 13, 2008
Export Citation:
Assignee:
WANG CHI (CN)
International Classes:
H05B41/298
Foreign References:
| CN1695404A | 2005-11-09 | |||
| CN1787710A | 2006-06-14 | |||
| CN2192123Y | 1995-03-15 |
Attorney, Agent or Firm:
TIANJIN CAIZHI PATENT & TRADEMARK AGENCY, LTD (No.149 of Weijin Road Heping District, Tianjin 0, CN)
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