Title:
ADAPTIVE SLIDING-FREQUENCY TRIGGERING IGNITION METHOD FOR ELECTRONIC BALLAST OF HIGH PRESSURE GAS DISCHARGE LAMP
Document Type and Number:
WIPO Patent Application WO/2009/132485
Kind Code:
A1
Abstract:
An adaptive sliding-frequency triggering ignition method for electronic ballast of high pressure gas discharge lamp includes the steps of: measuring an accurate value of free oscillation frequency of the ballast load loop by using a single-chip before sliding-frequency triggering ignition, implementing safe and reliable sliding-frequency triggering ignition after calculating the initial frequency and ending frequency of sliding-frequency triggering ignition according to the accurate value. The method can safely and reliably finish sliding-frequency triggering ignition course, thus improving the parameters such as the quality, life of the high pressure gas discharge lamp electronic ballast.
Inventors:
HE ZHENG (CN)
Application Number:
PCT/CN2008/001777
Publication Date:
November 05, 2009
Filing Date:
October 21, 2008
Export Citation:
Assignee:
HE ZHENG (CN)
International Classes:
H05B41/24
Foreign References:
| CN101262730A | 2008-09-10 | |||
| CN2899381Y | 2007-05-09 | |||
| CN1819733A | 2006-08-16 | |||
| CN1228671A | 1999-09-15 |
Attorney, Agent or Firm:
BTA INTELLECTUAL PROPERTY AGENCY CO., LTD. (No. 2 YueTan North StreetXicheng, Beijing 5, CN)
Download PDF: