General properties and synthesis of PWM DC-to-DC converters.

A method for systematic synthesis of quasi-resonant (QR) topologies by addition of resonant elements to a parent pulse-width modulation (PWM) converter network is proposed. It is found that there are six QR classes with two resonant elements, including two novel classes. More complex QR converters can be generated by a recursive application of the synthesis method. Topological definitions of all known and novel QR classes follow directly from the synthesis method and topological properties of PWM parents. The synthesis of QR converters is augmented by a study of possible switch realizations and operating modes. In particular, it is demonstrated that a controllable rectifier can be used to accomplish the constant-frequency control in all QR classes. Links between the QR converters and the underlying PWM networks are extended to general DC and small-signal AC models in which the model of the PWM parent is explicitly exposed. Results of steady-state analyses of selected QR classes and operating modes include boundaries of operating regions, DC characteristics, a comparison of switching transitions and switch stresses, and a discussion of relevant design trade-offs.

Synthesis of PWM Dc-to-Dc Power Converters, ..

and Quasi-Resonant DC-to-DC Power Converters ..
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The book provides an in-depth presentation of topologies of PWM DC-DC power converters, voltage- and current-mode control of PWM DC-DC power converters, considers power losses in all components, device stresses, output voltage ripple, converter efficiency and power factor correction (PFC).

JPE-Journal of Power Electronics

It also includes extensive coverage of the following: topologies of high-efficiency switching-mode PWM and soft-switching DC-DC power converters; DC voltage transfer functions (conversion ratios), component values, losses, efficiency, and stresses; small-signal averaged circuit models; current-mode and voltage-mode feedback controls; metal-oxide-semiconductor field-effect power transistors (MOSFETs); silicon (Si) and silicon carbide (SiC) power semiconductor devices.

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17.3 Buck ZVS Quasi–Resonant DC DC ..

Research supported by Boeing Electronics, GTE Corp., Rockwell International Corp., and EG&G Almond Instruments, Inc.A method for systematic synthesis of quasi-resonant (QR) topologies bythe addition of resonant elements to a parent pulse-width-modulated(PWM) converter network is proposed.

presentation of topologies of PWM DC-DC power converters…

and (1991) A general approach to synthesis and analysis of quasi-resonant converters. IEEE Transactions on Power Electronics, 6 (1). pp. 127-140. ISSN 0885-8993.

hen conventional PWM power converters are ..

Passivity--based feedback controllers are derived for the indirect stabilization of the average output voltage in Pulse--Width--Modulation (PWM) controlled dc--to--dc power converters of the "boost", "buck--boost" and "buck" types.

mode control of PWM DC DC power converters, ..

, Barbi Ivo 1997 ‘A Family of ZVS-PWM Active-Clamping DC-to-DC Converters: Synthesis, Analysis, Design, and Experimentation’ IEEE Trans On Circuits and Systems - I: fundamental theory and applications 44 (8)

Pulse-Width Modulated DC-DC Power Converters / Edition 1 ..

Nakaoka, "Series resonant ZCS-PFM DC-DC converter using high frequency transformer parasitic inductive components and lossless inductive snubber for high power microwave generator," Journal of Power Electronics, Vol.