Title :
A novel high output voltage DC-DC LLC resonant converter with symmetric voltage quadrupler rectifier for RF communications
Author :
Singh, Amit K. ; Das, Pritam ; Pahlevaninezhad, Majid ; Panda, S.K.
Author_Institution :
Dept. of Electr. & Comput. Eng., Nat. Univ. of Singapore, Singapore, Singapore
fDate :
Sept. 28 2014-Oct. 2 2014
Abstract :
This paper presents a high power density DC-DC converter for Radio Frequency (RF) transmitters. To meet the requirement of high voltage gain, LLC based converter followed by high frequency step up transformer and symmetrical quadrupler rectifier is proposed. The key advantage of using quadrupler in place of conventional rectifier and multiplier is discussed. The various modes of operation of converter with Self Sustained Oscillation Control (SSOC) are explained. Subsequently, the closed loop simulation of complete converter using SSOC is carried out and results are discussed. A scaled down prototype of proposed converter is developed and experimental results are shown.
Keywords :
DC-DC power convertors; closed loop systems; high-frequency transformers; radio transmitters; rectifiers; resonant power convertors; telecommunication power supplies; DC-DC LLC resonant converter; SSOC; closed loop simulation; high frequency step up transformer; radiofrequency transmitters; self sustained oscillation control; symmetric voltage quadrupler rectifier; Bridge circuits; Capacitors; DC-DC power converters; Rectifiers; Resonant frequency; Switching frequency; Zero voltage switching;
Conference_Titel :
Telecommunications Energy Conference (INTELEC), 2014 IEEE 36th International
Conference_Location :
Vancouver, BC
DOI :
10.1109/INTLEC.2014.6972212
