Title :
Optimization and design issues of low output voltage, off-line, zero-voltage-switched PWM converters
Author :
Chen, Qing ; Lotfi, Ashraf ; Lee, Fred C.
Author_Institution :
Bradley Dept. of Electr. Eng., Virginia Polytech. Inst. & State Univ., Blacksburg, VA, USA
Abstract :
The augmented Lagrangian (ALAG) penalty function technique is used to optimize low-output voltage, offline full-bridge (FB) zero-voltage-switched (ZVS) pulse width modulated (PWM) converters. Various design tradeoffs, such as the ZVS range, the leakage inductance, and the switching frequency, are discussed. A 5 V, 325 W ZVS-FB-PWM converter was designed. The hardware implementation is used for extensive experimental verification
Keywords :
optimisation; power convertors; pulse width modulation; 325 W; 5 V; ALAG; ZVS; augmented Lagrangian penalty function; design; leakage inductance; low output voltage; off-line full-bridge convertors; optimisation; switching frequency; zero-voltage-switched PWM converters; Capacitance; Design optimization; Diodes; Lagrangian functions; Low voltage; MOSFET circuits; Power transformer insulation; Pulse width modulation converters; Switching frequency; Zero voltage switching;
Conference_Titel :
Applied Power Electronics Conference and Exposition, 1992. APEC '92. Conference Proceedings 1992., Seventh Annual
Conference_Location :
Boston, MA
Print_ISBN :
0-7803-0485-3
DOI :
10.1109/APEC.1992.228428
