Title :
High power factor rectifier with reduced conduction and commutation losses
Author :
de Souza, Alexandre Ferrari ; Barbi, Ivo
Author_Institution :
Fed. Univ. of Santa Catarina, Brazil
Abstract :
This paper presents a high power factor rectifier with reduced conduction and commutation losses for telecommunication applications. The reduced conduction losses are obtained through the use of a single converter, instead of the conventional configuration, composed of a four-diode front-end rectifier followed by a boost converter. A nondissipative snubber is responsible for the reduction in the commutation losses. A prototype rated at 1.6 kW, operating at 25 kHz with IGBTs has been implemented in laboratory
Keywords :
commutation; electric current control; insulated gate bipolar transistors; losses; power factor; rectifying circuits; snubbers; telecommunication power supplies; 1.6 kW; 25 kHz; IGBT; boost converter; commutation losses; four-diode front-end rectifier; high power factor rectifier; nondissipative snubber; reduced commutation losses; reduced conduction losses; telecommunication applications; Capacitors; Circuits; Power harmonic filters; Power supplies; Power system harmonics; Reactive power; Rectifiers; Semiconductor diodes; Snubbers; Voltage;
Conference_Titel :
Telecommunication Energy Conference, 1999. INTELEC '99. The 21st International
Conference_Location :
Copenhagen
Print_ISBN :
0-7803-5624-1
DOI :
10.1109/INTLEC.1999.794044
