Standalone PV-fed LED Street Lighting Using Resonant Converter

Design Specifications and Performance analysis of Single and Two Stage HB LLC Converters

“…Therefore, 48 V DC systems are used in many applications. A distributed power network is to be used in an electric vehicle application which is of 48Vdc distribution network will be used throughout the vehicle [4], [8]- [9].…”

“…In view of its simple structure, the single stage power systems with only one topology, for low-to-medium power capability in 48 V DC power systems are extensively applied [4]. Amongst, the single-stage half-bridge (HB) LLC resonant converter has been widely used because of its advantages like high efficiency at high input voltage, low voltage stress on secondary rectifier.…”

“…When load becomes heavier, the maximum value of resonant frequency is produced by L r and C r , and gain is unity at resonant frequency f o and does not dependent on load change. In the proposed converter, MOSFET switches are used as primary switches, so ZVS is preferred [1]- [4], [6]. The current and voltage waveforms of the proposed circuit are shown in Fig 2.…”