Title :
Design and implementation of constant frequency soft switched regulated power supply for aerospace applications
Author :
Uma, G. ; Chellamuthu, C.
Author_Institution :
Sch. of Electr. & Electron. Eng., Annaba Univ., Algeria
Abstract :
A new method of voltage regulation of the constant frequency (CF) zero voltage switching (ZVS) quasi-resonant converter (QRC) based DC-DC switched mode power supply is presented. The output voltage of the half wave (HW) CF-QRC varies, when the load and the input voltage changes. To maintain constant output voltage, a closed loop system with a PI controller is proposed. The present work deals with the design and implementation of CF-ZVS-QRC operating in the HW mode. A high-speed micro-controller is used for the realization of PI controller and for the generation of trigger pulses for the switches. The experimental results are compared with theoretical results and they closely agree with each other
Keywords :
DC-DC power convertors; closed loop systems; microcontrollers; resonant power convertors; switched mode power supplies; switching circuits; two-term control; voltage control; DC-DC switched mode power supply; PI controller; ZVS; aerospace applications; closed loop system; constant frequency soft switched regulated power supply; half wave; high-speed micro-controller; input voltage; load; output voltage; quasi-resonant converter; switches; trigger pulses generation; voltage regulation; zero voltage switching; Closed loop systems; Control systems; DC-DC power converters; Frequency conversion; Pulse generation; Switched-mode power supply; Switches; Switching converters; Voltage control; Zero voltage switching;
Conference_Titel :
Power System Technology, 2000. Proceedings. PowerCon 2000. International Conference on
Conference_Location :
Perth, WA
Print_ISBN :
0-7803-6338-8
DOI :
10.1109/ICPST.2000.900103
