Llc resonant converter thesis

Methods Citations. Figures from this paper. Citation Type. Has PDF. Publication Type. More Filters. The traditional AC-DC power switching supplies often use the diode rectifier, due to the presence of the large filter capacitor and the switching devices, the power factor of the circuit is usually … Expand. A dual pulse modulated five-element multi-resonant DC-DC converter and its performance evaluations. A five-element multi-resonant LLC - LC dc-dc converter can attain the wide range output power and voltage regulations by a practical-range pulse frequency modulation PFM.

It is a drawback, … Expand. View 1 excerpt, cites background. View 1 excerpt, cites methods. LLC resonant converter is a soft switching frequency modulated dc—dc topology with its switching frequency near the resonant frequency. However, in applications where a wide output voltage is … Expand. LLC converter with reconfigurable voltage multiplier rectifier for high voltage and wide output range applications.

Materials Science, Computer Science. Optimized parameter design method for wide-input-voltage LLC converter with frequency-based self-adapted magnetizing inductance. View 2 excerpts, cites methods. The resonant inductor current iL … Expand. View 1 excerpt, references methods.

In this paper, a novel precise analysis method based on time domain analysis for LLC series resonant converter is proposed and a clear design guide line is given. Because LLC resonant converter has … Expand. View 1 excerpt, references background. An introduction to LLC resonant half-bridge converter. JavaScript is disabled for your browser. Some features of this site may not work without it.

Data Abstract Since the beginning of power electronics studies, the key objective has been to reduce the size of the transformation equipment. The invention of controlled semiconductor devices set up a step forward to this objective, by increasing the switching frequency and hence reducing the volume of reactive elements. However, this new operation strategy came also with an increment of the converter switching losses and setting a constrain due heat dissipation. A new thread in the pursuit of size reduction is set on resonant or quasi-resonant converters which use reactive networks to obtain soft switching topologies.

This commutation strategy achieves a drastic reduction of the switching losses on the switching devices so the heat constrain is only attached to the conduction losses. In this thesis, a deep analysis of one particular resonant converter has been performed, the LLC topology. LLC structure's main particularity relies on handling the power flow, by using frequency modulation instead of Pulse Width Modulation PWM like traditional converters.

This intrinsic characteristic eases the control strategy but hinders the model linearization since State Space Averaging Method SSAM can no longer be applied.