  Use of explicit integration methods for power electronic circuits with ideal
switch models significantly improves simulation speed. The PLECS package [1]
has effectively used this idea; however, the implementation details involved in
PLECS are not available in the public domain. Recently, a basic framework,
called the ``ELEX" scheme, for implementing explicit methods has been described
[2]. A few modifications of the ELEX scheme for efficient handling of inductors
and switches have been presented in [3]. In this paper, the approach presented
in [3] is further augmented with robust schemes that enable systematic equation
formulation for circuits involving switches, inductors, and transformers.
Several examples are presented to illustrate the proposed schemes.
