Electric lamp and discharge devices: systems – With automatic shunt and/or cutout – Supply circuit current and/or potential actuated switch
Patent
1998-06-01
2000-08-01
Wong, Don
Electric lamp and discharge devices: systems
With automatic shunt and/or cutout
Supply circuit current and/or potential actuated switch
315200R, 307 66, H05B 3700
Patent
active
060971584
ABSTRACT:
A low voltage illumination system, comprising a pair of terminals for connecting to a source of low frequency a.c. voltage, a frequency converter coupled to the source of a.c. voltage for converting the low frequency a.c. voltage to high frequency a.c. voltage, and a step down transformer coupled to an output of the frequency converter for converting to high frequency, low voltage a.c. A synchronous rectifier is coupled to a secondary of the step down transformer for converting the high frequency low voltage a.c. to a low magnitude nominally d.c. voltage, and a pair of conductors is connected to the low magnitude nominally d.c. voltage for connecting low voltage lamps thereto. Optionally, the step down transformer is of planar design and an integral overload protection circuit is provided responsive to a drop in output impedance across the conductors commensurate with an overload for interrupting power thereto.
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Barak Shaul
Manor Dror
Romano Shafrir
Zinkler Victor
Lightech Electronics Industries Ltd.
Vo Tuyet T.
Wong Don
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