Title :
The charge-controlled PWM switch
Author :
Vorpérian, Vatché
Author_Institution :
Jet Propulsion Lab., California Inst. of Technol., Pasadena, CA, USA
Abstract :
The switching mechanism in PWM DC/DC power converters under charge-control is modeled by a three-terminal invariant switching structure called the charge-controlled PWM switch (QC-PWM). An equivalent circuit model of the QC-PWM switch is derived which, owing to its invariance, can be used to obtain the average large-signal and small-signal behavior of any two switched-state PWM power converter. This model, like the models of the PWM switch and the current-controlled PWM (CC-PWM) switch given earlier by the author, is self-contained, accurate and easy to use. The complete dynamics of a PWM power converter in charge control, including its subharmonic oscillation condition, are easily determined simply by replacing the QC-PWM switch with its equivalent circuit model
Keywords :
DC-DC power convertors; PWM power convertors; equivalent circuits; power semiconductor switches; switching circuits; PWM DC/DC power converters; charge control dynamics; charge-controlled PWM switch; equivalent circuit model; large-signal behavior; small-signal behavior; subharmonic oscillation; switching mechanism; three-terminal invariant switching structure; Equivalent circuits; Feeds; Power system modeling; Pulse width modulation; Pulse width modulation converters; Space vector pulse width modulation; Switches; Switching circuits; Switching converters; Voltage;
Conference_Titel :
Power Electronics Specialists Conference, 1996. PESC '96 Record., 27th Annual IEEE
Conference_Location :
Baveno
Print_ISBN :
0-7803-3500-7
DOI :
10.1109/PESC.1996.548632
