A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Bridgeless SEPIC PFC Converter for Multistring LED Driver
Abstract This paper deals with Power Factor Correction (PFC) in Low Voltage High Current (LVHC) multi-string light emitting diode (LED) using a bridgeless (BL) single ended primary inductance converter (SEPIC). This application is designed for large area LED lighting with illumination control. A multi-mode LED dimming technique is used for the lighting control. The BL-SEPIC PFC converter is used as a load emulator for high power factor. The regulated low voltage from flyback converter is a source power to the synchronous buck converters for multi-string LED driver and forced cooling system for LED junction. The BL-SEPIC PFC converter inductor design is based on Discontinuous Inductor Current Modes (DICM) which provides good PFC at low cost. Test results are found quite satisfactory for universal input AC (90–265 V). There is significant improvement in the power factor and input current Total Harmonic Distortion (THD) with good margin of harmonic limits for lighting IEC 61000-3-2 Class C.
Bridgeless SEPIC PFC Converter for Multistring LED Driver
Abstract This paper deals with Power Factor Correction (PFC) in Low Voltage High Current (LVHC) multi-string light emitting diode (LED) using a bridgeless (BL) single ended primary inductance converter (SEPIC). This application is designed for large area LED lighting with illumination control. A multi-mode LED dimming technique is used for the lighting control. The BL-SEPIC PFC converter is used as a load emulator for high power factor. The regulated low voltage from flyback converter is a source power to the synchronous buck converters for multi-string LED driver and forced cooling system for LED junction. The BL-SEPIC PFC converter inductor design is based on Discontinuous Inductor Current Modes (DICM) which provides good PFC at low cost. Test results are found quite satisfactory for universal input AC (90–265 V). There is significant improvement in the power factor and input current Total Harmonic Distortion (THD) with good margin of harmonic limits for lighting IEC 61000-3-2 Class C.
Bridgeless SEPIC PFC Converter for Multistring LED Driver
Jha, Aman (author) / Singh, Bhim (author)
Journal of The Institution of Engineers (India): Series B ; 99 ; 353-367
2018-05-02
15 pages
Article (Journal)
Electronic Resource
English
Modelling and Comparison of Conventional SEPIC Converter with Cascaded Boost–SEPIC Converter
| Springer Verlag | 2021
SEPIC Converter for Solar PV Array Fed Battery Charging in DC Homes
| Springer Verlag | 2021
| British Library Online Contents | 2013
| British Library Online Contents | 2019
SEPIC - regulator with zero input ripple current
| British Library Online Contents | 2006