Title :
Design and implementation of constant frequency soft switched regulated power supply for aerospace applications
Author :
Uma, G. ; Shanthi, M. ; Chellamuthu, C.
Author_Institution :
Sch. of Electr. & Electron., Anna Univ., Chennai, India
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 microcontroller is used for the realization of a 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; 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; constant output voltage; half wave converter; high-speed microcontroller; input voltage change; load change; output voltage; quasi-resonant converter; trigger pulses; voltage regulation; zero voltage switching; Closed loop systems; Control systems; DC-DC power converters; Frequency conversion; Microcontrollers; Pulse generation; Switched-mode power supply; Switching converters; Voltage control; Zero voltage switching;
Conference_Titel :
Industrial Electronics, 2000. ISIE 2000. Proceedings of the 2000 IEEE International Symposium on
Conference_Location :
Cholula, Puebla
Print_ISBN :
0-7803-6606-9
DOI :
10.1109/ISIE.2000.930495
