Boost Converter Switching Losses

Boost converters are generally used to realize input PFC and ac/dc conversion in the front end of an ac/dc converter . But this method is affecting from high switching loss . The main sources of switching losses in boost PFC converters are hard turn-ON of the MOSFET and the reverse recovery of the boost diode during its turn-OFF.

https://www.ijesat.org/Volumes/2013_Vol_03_Iss_06/IJESAT_2013_03_06_01.pdf

Equivalent circuit modeling of switching converters , to predict their power conversion functions and efficiency under steady-state conditions Sect. 3.4 How to Obtain the Input Port of the Model 10:31 Sect. 3.5 Example: Semiconductor Conduction Losses in Boost Converter 23:03

https://www.coursera.org/lecture/power-electronics/sect-3-5-example-semiconductor-conduction-losses-in-boost-converter-UxrTK

This paper presents a novel concept of switch -mode DC-DC boost converters with reduced switching losses . The converters use an auxiliary switching cell (ASC) to achieve zero voltage switching (ZVS) during the turn-off of a transistor. The novel concept facilitates an increase in the efficiency or switching frequency of an IGBT-based boost converter . The ...

https://ieeexplore.ieee.org/document/9374797

Boost converter MOSFET switching loss waveforms for the conventional driver; top: drain voltage and current, second: gate-source voltage, third: gate current, bottom: power loss .

https://researchgate.net/figure/Boost-converter-MOSFET-switching-loss-waveforms-for-the-conventional-driver-top-drain_fig10_3281440

i.e. boost converter , three-level flying capacitor multilevel converter (FCMC) and one-cell switching tank converter (STC) for a 100 kW electric vehicle power electronic system. This bidirectional dc-dc converter targets 300 V - 600 V voltage conversion. Total semiconductor loss index (TSLI) has been

https://par.nsf.gov/servlets/purl/10186968

In the boost converter , L and C are large so that the inductor current and the output voltage ripples can be neglected. At the steady-state operating point, inductor current is I = 5 A, output voltage is V = 400 V, and output load power is P = 500 W. The switching frequency is fs = 200 kHz. Upon turn-on, MOSFET

http://ecee.colorado.edu/~ecen5817/hw/hw1/Diode%20reverse%20recovery%20in%20a%20boost%20converter.pdf