Title :
Leading-edge modulation voltage-mode control with flux unbalance correction for push-pull converter
Author :
Zhou, Xingsheng ; Chen, Dan ; Jamerson, Clifford
Author_Institution :
Bradley Dept. of Electr. Eng., Virginia Polytech. Inst. & State Univ., Blacksburg, VA, USA
fDate :
6/22/1905 12:00:00 AM
Abstract :
This paper presents a leading-edge modulation voltage-mode control scheme for a 3 kW, 96 V battery-backed-up DC-DC converter with 400 V/ 800 V output, which is developed to power a half-bridge inverter in an on-line sinewave UPS system. A new circuit scheme is proposed to implement pulse-by-pulse current limit and flux unbalance correction functions with a leading-edge modulation voltage-mode PWM control IC, TL598. Design considerations for implementing voltage control loop for this application and experimental results are also presented
Keywords :
DC-DC power convertors; bridge circuits; feedback; integrated circuits; invertors; magnetic flux; voltage control; 3 kW; 400 V; 800 V; 96 V; battery-backed-up DC-DC converter; circuit scheme; flux unbalance correction; flux unbalance correction functions; half-bridge inverter; leading-edge modulation voltage-mode PWM control IC; leading-edge modulation voltage-mode control; on-line sinewave UPS system; pulse-by-pulse current limit; push-pull converter; voltage feedback control loop; Circuit faults; DC-DC power converters; Power transformers; Pulse circuits; Pulse width modulation; Space vector pulse width modulation; Timing; Topology; Uninterruptible power systems; 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.2000.826123
