Table 2.

Single-switch quadratic topologies derived from the boost converter.

Characteristic	Boost/Buck	Boost/Boost [12]	Boost/Buck–Boost	Boost/Ćuk [49]	Boost/SEPIC	Boost/Zeta
Configuration	I	I	I	I	I	I
Voltage gain	$\frac{D}{1-D}$ (c)	${\left(\frac{1}{1-D}\right)}^2$ (e)	$-\frac{D}{{\left(1-D\right)}^2}$ (g)	$-\frac{D}{{\left(1-D\right)}^2}$ (g)	$\frac{D}{{\left(1-D\right)}^2}$ (g)	$\frac{D}{{\left(1-D\right)}^2}$ (g)
Input current	Non-Pulsating	Non-Pulsating	Non-Pulsating	Non-Pulsating	Non-Pulsating	Non-Pulsating
Output stage current	Non-Pulsating	Pulsating	Pulsating	Non-Pulsating	Pulsating	Non-Pulsating
Switch Additional Stresses	Current	Current	Current	Current	Current	Current
Components (S/D/L/C)	1/3/2/2	1/3/2/2	1/3/2/2	1/3/3/3	1/3/3/3	1/3/3/3
Applications	Low step-up/low step-down	High step-up	High step-up/low step-down	High step-up/low step-down	High step-up/low step-down	High step-up/low step-down