A new current source charge pump electronic ballast having high input power factor and low crest factor
DSpace at IIT Bombay
View Archive InfoField | Value | |
Title |
A new current source charge pump electronic ballast having high input power factor and low crest factor
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Creator |
RAO, GK
CHATTERJEE, K |
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Subject |
electronic ballast
current source charge pump lamp crest factor switching frequency |
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Description |
The basic Current Source Charge Pump Power Factor Correction Electronic Ballast as proposed in [11] has the problem of high lamp current crest factor. Switching frequency modulation has been proposed [11] to improve lamp current crest factor. But the requirement of"ide variation of switching frequency, makes the design of the ballast complicated. Moreover. in this case lamp current has to be sensed which increases the hardware requirement and makes the control issue more involved. Here an attempt has been made to improve upon the lamp current crest factor without modulating the switching frequency. This is achieved by transferring the excess energy of the resonant inductor to the dc bus at the zero crossing instants of the input voltage by employing a high frequency transformer. As the transformer is required to operate at high frequency while having low volt-ampere rating, increment in passive element count is insignificant. The operating principle of the proposed scheme is presented and analysed. The working of the scheme is verified through extensive simulation studies. A laboratory prototype of the ballast is fabricated and the. p viability of the proposed scheme is conformed through experimental studits.
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Publisher |
IEEE
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Date |
2011-10-26T19:46:05Z
2011-12-15T09:12:28Z 2011-10-26T19:46:05Z 2011-12-15T09:12:28Z 2003 |
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Type |
Proceedings Paper
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Identifier |
2003 IEEE INTERNATIONAL SYMPOSIUM ON INDUSTRIAL ELECTRONICS, VOLS 1 AND 2,495-499
0-7803-7912-8 http://dspace.library.iitb.ac.in/xmlui/handle/10054/16108 http://hdl.handle.net/100/2690 |
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Source |
IEEE International Symposium on Industrial Electronics,RIO DE JANEIRO, BRAZIL,JUN 09-11, 2003
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Language |
English
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