A small-signal model for a PWM dc-dc boost converter operated in DCM composed of current-controlled current sources and derived by using the energy conservation approach is presented. The proposed model is suitable for small-signal, frequency-domain representation of the converter and can be used to derive the expressions and Bode plots of the control-to-output voltage transfer function. The input-to-output voltage transfer function, the input impedance, and the output impedance. Main advantages of the proposed method are as follows. A linear equivalent circuit of the converter is derived and its representation in the frequency domain given which does not require matrix manipulation. The converter parasitic components are considered. A good understanding of the frequency domain behavior of power converters is achieved. Finally, the proposed method can be easily utilized to model other PWM dc-dc converter circuits
Current controlled current source model for a PWM dc-dc boost converters operated in discontinuous current mode2000 IEEE International Symposium on Circuits and Systems. Emerging Technologies for the 21st Century. Proceedings (IEEE Cat No.00CH36353) / A. Reatti;M.K. Kazimierczuk. - ELETTRONICO. - 3:(2000), pp. 239-242. (Intervento presentato al convegno Circuits and Systems, 2000. Proceedings. ISCAS 2000 Geneva. The 2000 IEEE International Symposium on) [10.1109/ISCAS.2000.856041].
Current controlled current source model for a PWM dc-dc boost converters operated in discontinuous current mode2000 IEEE International Symposium on Circuits and Systems. Emerging Technologies for the 21st Century. Proceedings (IEEE Cat No.00CH36353)
REATTI, ALBERTO;
2000
Abstract
A small-signal model for a PWM dc-dc boost converter operated in DCM composed of current-controlled current sources and derived by using the energy conservation approach is presented. The proposed model is suitable for small-signal, frequency-domain representation of the converter and can be used to derive the expressions and Bode plots of the control-to-output voltage transfer function. The input-to-output voltage transfer function, the input impedance, and the output impedance. Main advantages of the proposed method are as follows. A linear equivalent circuit of the converter is derived and its representation in the frequency domain given which does not require matrix manipulation. The converter parasitic components are considered. A good understanding of the frequency domain behavior of power converters is achieved. Finally, the proposed method can be easily utilized to model other PWM dc-dc converter circuitsFile | Dimensione | Formato | |
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