Title :
State plane approach to frequency response of resonant convertors
Author :
Lee, C.Q. ; Siri, K. ; Fang, S.J.
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., Illinois Univ., Chicago, IL, USA
fDate :
10/1/1991 12:00:00 AM
Abstract :
The steady state response of a resonant convertor can be represented graphically by the state plane diagram. On using the perturbation method on the steady state trajectory, a discrete small signal model for the convertor can be derived from the input voltage, controlled switching frequency and state variable perturbations. The conventional series resonant convertor is used as an example to demonstrate an analytical approach. However, this method of analysis can be applied to resonant convertors in general. From the small signal model derived, the frequency response of the convertor can be calculated
Keywords :
circuit analysis computing; frequency response; power convertors; state-space methods; switched mode power supplies; switching circuits; SMPS; controlled switching frequency; frequency response; input voltage; perturbation method; resonant convertors; series resonant convertor; small signal model; state plane diagram; state variable perturbations; steady state response; steady state trajectory;
Journal_Title :
Circuits, Devices and Systems, IEE Proceedings G
