Switching element driving circuit and discharge lamp...

Details Switching element driving circuit and discharge lamp... Switching element driving circuit and discharge lamp...

2007-02-20

2007-02-20

Vo, Tuyet Thi (Department: 2821)

Electric lamp and discharge devices: systems

Pulsating or a.c. supply

Discharge control discharge device load

C315S276000, C315S278000

Reexamination Certificate

active

11219510

ABSTRACT:
Switching elements S1, S2connected in series are provided on the secondary side of a pulse transformer T to which an input voltage is supplied from a DC power supply E. On the primary side of the pulse transformer T, switching element S3, S4are provided, and a regenerating unit RG including a current limiting inductor L1and a regenerating inductor L2is connected to the DC power supply E and the primary side of the pulse transformer T. A current is limited by the inductor L1during an on time of the element S3or S4, whilst a current is regeneratively supplied to the DC power supply E by using the inductor L2during the off time of the elements S3, S4.

REFERENCES:
patent: 5514921 (1996-05-01), Steigerwald
patent: 7045970 (2006-05-01), Lecheler et al.
patent: 2005/0035719 (2005-02-01), Dellian et al.
patent: 07-169584 (1995-07-01), None

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