Average current-mode control for a quadratic buck converter Conference Paper uri icon

abstract

  • In this paper, a methodology for controller design of a quadratic buck converter is given using average current-mode control. This scheme employs an inner loop that uses the average current of the first inductor and an outer loop that senses the output voltage for feedback purposes. Thus, a procedure is developed for the proper selection of: (a) the current gain for the inner loop, and (b) PI-controller for the outer loop. The design-oriented analytic results allow the designer to easily pinpoint the control circuit parameters that optimize the converter%27s performance. At the end, experimental results are given for a 28 W current-programmed regulator. © 2005 IEEE.
  • In this paper, a methodology for controller design of a quadratic buck converter is given using average current-mode control. This scheme employs an inner loop that uses the average current of the first inductor and an outer loop that senses the output voltage for feedback purposes. Thus, a procedure is developed for the proper selection of: (a) the current gain for the inner loop, and (b) PI-controller for the outer loop. The design-oriented analytic results allow the designer to easily pinpoint the control circuit parameters that optimize the converter's performance. At the end, experimental results are given for a 28 W current-programmed regulator. © 2005 IEEE.

publication date

  • 2005-01-01