flyback converter design in pspice tutorial

The main advantage of this converter was verified, which is the partial power processing, since 56.34% (11.3 W) of the energy was processed by the flyback converter while 43.66% (8.7 W) of the energy is delivered directly to load. Moreover, the rearranged flyback processed only 56% of the input power.Ī prototype was built that delivered 18 W at a resistive load and had an efficiency of 92.65%.

Experimental results showed that the converter has an efficiency of 92.65%. In order to validate the theoretical analysis, a circuit was simulated in Spice and implemented in an 18 W prototype.

A Low Frequency Averaging Analysis (LFAA) was used to determine the behavior of the proposed circuit, and a simple equivalent circuit to analyze was obtained. This configuration means that the topology can only be a boost topology however, there are benefits such as partial power processing (R 2P 2) and reduced stress on converter components in both voltage and current all this leads to increase the efficiency. This is achieved by connecting the secondary of the flyback in series with the load, and this assembly, in turn, is placed in parallel with the primary and the voltage source. The main contribution of the article is the analysis and obtaining the equations of the behavior of the converter with a rearrangement of the elements of the traditional flyback converter in such a way that the converter only processes part of the energy while the other part is delivered directly to the load. This paper presents a theoretical analysis of a DC-DC flyback converter variant applied in energy harvesting based on thermoelectric generators.

Flyback converter design in pspice tutorial