An improved electronic transformer for low-power halogen cycle lamps

Halogen cycle lamps are used for both outdoor and indoor lighting although low-power halogen cycle lamps are used in indoor lighting. When lamp power is below 50 W these lamps cannot be connected to power line directly because a low input voltage, between 6 and 24 V, is needed. Traditional supply eq...

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Published in:IEEE transactions on industry applications 1997-01, Vol.33 (1), p.246-251
Main Authors: Blanco, C., Villegas, P.J., Lopez, E., Marcos Alonso, J., Rico, M.
Format: Article
Language:English
Subjects:
Diodes
Frequency
Inductance
Inverters
Lamps
Low voltage
MOSFET circuits
Power system reliability
Reactive power
Resistors
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cited_by cdi_FETCH-LOGICAL-c334t-d197ab729c32db31b8167e71818b401bcdc64011abc633155ce084c978ad4a013
cites cdi_FETCH-LOGICAL-c334t-d197ab729c32db31b8167e71818b401bcdc64011abc633155ce084c978ad4a013
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container_issue 1
container_start_page 246
container_title IEEE transactions on industry applications
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creator Blanco, C.
Villegas, P.J.
Lopez, E.
Marcos Alonso, J.
Rico, M.
description Halogen cycle lamps are used for both outdoor and indoor lighting although low-power halogen cycle lamps are used in indoor lighting. When lamp power is below 50 W these lamps cannot be connected to power line directly because a low input voltage, between 6 and 24 V, is needed. Traditional supply equipments for low-power halogen lamps are 50/60-Hz transformers, but they are bulky and heavy. A low-cost, reliable, high-frequency supply system (an electronic transformer) for low-power halogen cycle lamps, based on a self-oscillating half-bridge inverter, is described in this paper. Compared with a 50-Hz transformer, weight and size have been minimized. Moreover, a high power factor, more than 0.9, has been achieved, and the circuit is reliable and flexible.
doi_str_mv 10.1109/28.567124
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subjects Diodes
Frequency
Inductance
Inverters
Lamps
Low voltage
MOSFET circuits
Power system reliability
Reactive power
Resistors
title An improved electronic transformer for low-power halogen cycle lamps
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