Table 1 Performance analysis and comparison.

Peak currents value

\(I_{L(P)}\)

\(I_{L(P)}\)

\(I_{L(P)}\)

\(I_{L(P)}\)

Current interruption of the inductor

No

No

No

Yes

Bipolar voltage gain control

Yes

Yes

Yes

No

Switching current (I_SW)

I_o

I_o

I_o

1.5 I_o

Switching voltage (V_SW)

\(V_{{SW(D_{1} + M_{1} ,\,\,D_{3} + M_{3} )}} = 2V_{o}\)

\(V_{{SW(D_{2,4,5,6} \,{\text{and}}\,M_{2,4,5,6} ,)}} = 2V_{o}\)

\(V_{{SW({\text{all}}\,{\text{transistors}}\,\,{\text{and}}\,\,{\text{diodes}})}} = 2V_{o}\)

\(V_{{SW({\text{Diodes + Transistors}})}} = 2V_{o}\)

\(V_{SW} = 3V_{o}\)

Maximum conducting transistors for one switching period

4

4

3

3

Maximum conducting diodes in one switching period

3

4

3

3

Synchronization of PWM signals with input voltage

No

Yes

Yes

Yes

Number of capacitors

2

2

2

2

Number of inductors

1

1

1

2

Conduction-losses

\(\begin{gathered} \frac{{3\sqrt 2 V_{f} I_{o} }}{\pi } + \frac{{3I_{o}^{2} R_{D} }}{2} \hfill \\ + 2I_{o}^{2} R_{T} \hfill \\ \end{gathered}\)

\(\begin{gathered} \frac{{3\sqrt 2 V_{f} I_{o} }}{\pi } + \hfill \\ \frac{{3I_{o}^{2} }}{2}\left( {R_{D} + R_{T} } \right) \hfill \\ \end{gathered}\)

\(\begin{gathered} \frac{{6\sqrt 2 V_{f} I_{o} }}{\pi } + 3I_{o}^{2} R_{D} \hfill \\ + 2I_{o}^{2} R_{T} \hfill \\ \end{gathered}\)

\(\begin{gathered} \frac{{3\sqrt 2 V_{f} I_{o} }}{\pi } \hfill \\ + \frac{{9I_{o}^{2} \left( {R_{D} + R_{T} } \right)}}{4} \hfill \\ \end{gathered}\)

Switching-losses

\(P_{sw} = \frac{4}{3}V_{o} I_{o} f_{s} \left( {t_{r} + t_{f} } \right)\)

\(P_{sw} = \frac{2}{3}V_{o} I_{o} f_{s} \left( {t_{r} + t_{f} } \right)\)

\(P_{sw} = \frac{4}{3}V_{o} I_{o} f_{s} \left( {t_{r} + t_{f} } \right)\)

\(3V_{o} I_{o} f_{s} \left( {t_{r} + t_{f} } \right)\)