Modeling of conduction losses in PWM converters operating in discontinuous conduction mode

Author

Zhu, Guangyong ; Luo, Shiguo ; Iannello, Chns ; Batarseh, Issa

Author_Institution

Dept. of Electr. & Comput. Eng., Univ. of Central Florida, Orlando, FL, USA

Volume

3

fYear

2000

fDate

2000

Firstpage

511

Abstract

In this paper, a non-ideal PWM switch model considering conduction losses is developed. This issue was considered in the past only with the assumption that the inductor current ripple is negligible compared with its average value. Derivation of the new model is based on the energy loss invariant principle. The resulting model can be applied to simulating large inductor current ripple conditions. Accuracy of the proposed model is verified through Pspice simulation using the buck and boost converters

Keywords

DC-DC power convertors; PWM power convertors; SPICE; losses; PSPICE simulation; PWM converter; boost converter; buck converter; conduction loss; discontinuous conduction mode; energy loss invariant principle; inductor current ripple; nonideal switch model; Electrical resistance measurement; Energy loss; Inductors; Paramagnetic resonance; Pulse width modulation; Pulse width modulation converters; Resistors; Switches; Switching converters; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 2000. Proceedings. ISCAS 2000 Geneva. The 2000 IEEE International Symposium on

Conference_Location

Geneva

Print_ISBN

0-7803-5482-6

Type

conf

DOI

10.1109/ISCAS.2000.856109

Filename

856109