Title :
Input current shaper based on the series connection of a voltage source and a loss-free resistor
Author :
Sebastián, Javier ; Hernando, Marta María ; Fernández, Arturo ; Villegas, Pedro José ; Díaz, Juan
Author_Institution :
Dept. of Electr. Eng., Oviedo Univ., Spain
Abstract :
A new input current shaper is proposed in this paper. The operating principle is based on the connection of a voltage source and a loss-free resistor (LFR) between the input rectifier and the bulk capacitor in a conventional switching mode power supply with no power-factor correction. Both the voltage source and the LFR are obtained as an additional output from the converter´s transformer. This additional output is a forward-type one with one extra inductor. With the final topology, a good tradeoff between capacitor voltage, recycling energy, and harmonic content can be established in order to comply with IEC 1000-3-2 specifications
Keywords :
IEC standards; power convertors; power factor correction; switched mode power supplies; IEC 1000-3-2 specifications; bulk capacitor; capacitor voltage; forward-type converter; harmonic content; inductor; input current shaper; input rectifier; loss-free resistor; operating principle; power-factor correction; recycling energy; series connection; switching mode power supply; voltage source; Capacitors; Costs; IEC standards; Inductors; Power generation; Power supplies; Rectifiers; Resistors; Topology; Voltage;
Journal_Title :
Industry Applications, IEEE Transactions on
