Title :
A novel single-stage off-line converter with PFC and fast output voltage regulation
Author :
O´Sullivan, D. ; Egan, M.G. ; Willers, M.
Author_Institution :
PEI Technol., Univ. Coll. Cork, Ireland
fDate :
6/22/1905 12:00:00 AM
Abstract :
A single-stage, isolated, low cost, LC resonant based power supply circuit incorporating power factor correction and fast output voltage regulation is proposed. Advantages of this topology include soft switching of power devices, output voltage holdup and control loop simplicity. The recently introduced rectifier compensated fundamental mode approximation (RCFMA) method is used to provide an accurate yet simple analysis of the circuit. This approximation is extended to provide a small signal model of the converter which is used to design the control loop. Results from a 5 V, 20 A prototype are presented
Keywords :
AC-DC power convertors; closed loop systems; control system analysis; control system synthesis; harmonic distortion; power conversion harmonics; power factor correction; power supplies to apparatus; rectifying circuits; resonant power convertors; switching circuits; voltage control; 20 A; 5 V; LC resonant based power supply circuit; control loop design; control loop simplicity; fast output voltage regulation; output voltage holdup; power devices; power factor correction; rectifier compensated fundamental mode approximation; small signal model; soft switching; Circuit analysis; Circuit topology; Costs; Power factor correction; Power supplies; RLC circuits; Rectifiers; Resonance; Signal design; Voltage control;
Conference_Titel :
Applied Power Electronics Conference and Exposition, 2000. APEC 2000. Fifteenth Annual IEEE
Conference_Location :
New Orleans, LA
Print_ISBN :
0-7803-5864-3
DOI :
10.1109/APEC.2000.826141
