Title:
A MULTI-OUTPUT LIGHTENING ELECTRIC LIGHT SOURCE DEVICE
Document Type and Number:
WIPO Patent Application WO/2009/067931
Kind Code:
A1
Abstract:
A multi-output lightening electric light source device,includes an active
filtering circuit, a high-frequency rectification filtering circuit, a high-frequency
switch power supply control circuit, a pulse delay phase-shift circuit, three
chopping power output circuits and three electric light source loads. The AC
power supply outputs to the high-frequency rectification filtering circuit
through the active filtering circuit. The high-frequency switch power supply
control circuit is connected with the active filtering circuit and the pulse
delay phase-shift circuit. The high frequency switch power supply control circuit
adjusts oscillation frequency according to the differences of the electric
light power loads for generating two interlocked positive pulse outputs, to
delay and shift a phase to two interlocked outputs via the pulse delay phase-shift
circuit, and realizes multi-output high- frequency voltage and current via
the high-power chopping circuit. The device can effectively remove strobe and
stroboscopic effect of the electric light source and improve lighting quality.
The device reduces harmonic wave component of input current, so that the electric
light source can obtain higher photoelectric conversion ratio by using smaller
power, and to save electric energy.
Inventors:
WANG CHI (CN)
Application Number:
PCT/CN2008/073044
Publication Date:
June 04, 2009
Filing Date:
November 13, 2008
Export Citation:
Assignee:
WANG CHI (CN)
International Classes:
H05B41/285; H05B41/36
Foreign References:
| CN101188897A | 2008-05-28 | |||
| CN201119095Y | 2008-09-17 | |||
| CN2634787Y | 2004-08-18 | |||
| US20060006816A1 | 2006-01-12 | |||
| US6339298B1 | 2002-01-15 | |||
| KR20070107192A | 2007-11-07 |
Attorney, Agent or Firm:
TIANJIN CAIZHI PATENT & TRADEMARK AGENCY, LTD (No.149 of Weijin Road Heping District, Tianjin 0, CN)
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