Constant-Frecuency Limiter for a Sliding Mode Control

Author

Díaz, R. ; Osorio, R. ; Ponce, M. ; Oliver, M.A. ; Aguilar, L. ; Juárez, M. ; Olivares, V.H.

Author_Institution

Nat. Center of Res. & Technol. Dev., Cuernavaca

Volume

2

fYear

2006

fDate

Sept. 2006

Firstpage

305

Lastpage

308

Abstract

The commutation frequency in a sliding mode control (SMC) for DC-DC converter is affected by main voltage and load variations. This problem is undesirable for L and C component design. To maintain a constant-switching frequency under variations in load and main voltage, a constant-frequency limiter based on microcontroller is proposed. This limiter is very simple and must be implemented in any type of microcontroller. Experimental results are showed using a buck converter with sliding mode control sensing the output current

Keywords

DC-DC power convertors; commutation; microcontrollers; variable structure systems; DC-DC converter; buck converter; commutation frequency; constant-frequency limiter; load variations; microcontroller; sliding mode control; Buck converters; DC-DC power converters; Frequency conversion; Microcontrollers; Pulse generation; Pulse width modulation; Robust stability; Sliding mode control; Transient response; Voltage; Frequency limiter; buck converter; continuous conduction mode; microcontroller.; sliding mode control;

fLanguage

English

Publisher

ieee

Conference_Titel

Electronics, Robotics and Automotive Mechanics Conference, 2006

Conference_Location

Cuernavaca

Print_ISBN

0-7695-2569-5

Type

conf

DOI

10.1109/CERMA.2006.107

Filename

4019811