Discrete modeling and analysis of switching regulators

摘要: A simplified method for finding and using discrete small-signal models switching regulators is presented. With introduction of a new "straight-line" approximation, application root locus techniques, it demonstrated that may be used accurately to predict wide bandwidth closed-loop behavior with methods simple enough useful in the initial design phase regulator. The principal result set converter transfer functions comparable derived by describing function but not subject low frequency restriction models. Also presented pulse-width modulator which indicates potential transient regulator independent choice modulator.