Electronic transformer for lighting

Details Electronic transformer for lighting Electronic transformer for lighting

1999-11-09

2000-12-05

Sterrett, Jeffrey

Electric power conversion systems

Current conversion

Including an a.c.-d.c.-a.c. converter

363 56, H02M 5458

Patent

active

061575518

ABSTRACT:
An electronic transformer for lighting includes a rectifier coupled to an inverter an output transformer (T1, T10) and a drive transformer (T2, T11). A protection mechanism (VR1, VR2) is responsively coupled to a winding of the output transformer and to a winding of the drive transformer such that the voltage across each of the windings are approximately equal and opposite during normal operation but differ substantially during a short-circuit.

REFERENCES:
patent: 4553070 (1985-11-01), Sairanen et al.
patent: 4862041 (1989-08-01), Hirschmann
patent: 5103139 (1992-04-01), Nilssen
patent: 5563777 (1996-10-01), Miki et al.
patent: 5740021 (1998-04-01), Lecheler et al.
patent: 5828188 (1998-10-01), Lecheler

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