Energy-saving lamps power tube failure mechanism analysis

Published:2011/7/13 23:16:00 Author:TaoXi | Keyword: Energy-saving lamps, power tube, failure, mechanism, analysis | From:SeekIC

From the failure mechanism analysis, we know that in order to reduce the failure, we need to reduce the operating power of the tube and improve the secondary breakdown characteristic, in fact, the two are related. By the mechanism of the secondary breakdown, we know that the temperature rise increases the tube's HFE and switching performance becomes poor, also the secondary breakdown characteristic; the rise of temperature makes the actual dissipation power parameter become poor, the safe operating area of the tube becomes smaller. vice versa. So in order to improve the quality of the tube, we need to prevent the over-temperature of the tube when it is operating and improve the dissipation power.



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