© The Institution of Engineering and Technology
The 3-level boost (3LB) converters have the characteristics of higher-voltage conversion ratio and efficiency, lower inductor current ripples, output voltage ripples and voltage stresses on switches when compared with the conventional boost converters in continuous conduction mode (CCM). When implemented into an integrated circuit, the 3LB converter discontinuous conduction mode (DCM) operation cannot be avoided due to a smaller inductance. Its DCM operation analysis is deduced including CCM/DCM boundary, DCM voltage gain and DCM small signal transfer function. The deduced DCM operation theory is verified using MATLAB and Cadence, to obtain a feasible DCM closed-loop controller design in future.
References
-
-
1)
-
2. Itoh, J.-I., Matsuura, K., Orikawa, K.: ‘Reduction of a boost inductance using a switched capacitor DC–DC converter’. Proc. IEEE Eighth Int. Conf. Power Electronics and ECCE Asia, Jeju, South Korea, May–June 2011, pp. 1315–1322, .
-
2)
-
4. Erickson, R.W., Maksimovic, D.: ‘Fundamentals of power electronics’ (Kluwer Academic Publishers, NJ, USA, 2000, 2nd edn.).
-
3)
-
5. Kim, W., Brooks, D., Wei, G.-Y.: ‘A fully-integrated 3-level DC–DC converter for nanosecond-scale DVFS’, J. Solid-State Circuits, 2012, 47, (1), pp. 206–219 (doi: 10.1109/JSSC.2011.2169309).
-
4)
-
3. Keyhani, H., Toliyat, H.A.: ‘Flying-capacitor boost converter’. Proc. 27th Annual IEEE Applied Power Electronics Conf. and Exposition, Orlando, FL, February 2012, pp. 2311–2318, .
-
5)
-
1. Ponniran, A.B., Orikawa, K., Itoh, J.: ‘Minimum flying capacitor for n-level capacitor dc/dc boost converter’, IEEE Trans. Ind. Appl., 2016, 52, (4), pp. 3255–3266 (doi: 10.1109/TIA.2016.2555789).
http://iet.metastore.ingenta.com/content/journals/10.1049/el.2016.3601
Related content
content/journals/10.1049/el.2016.3601
pub_keyword,iet_inspecKeyword,pub_concept
6
6
DCM operation analysis of 3-level boost converters