Switched boost inverter (SBI) was proposed by retaining the
same dynamic states of ZSI but lowering the passive component
count by replacing the “X”-shaped impedance network with an
active network [12]–[14]. Similar to ZSI, SBI also possesses
better EMI noise immunity. SBI has only one L-C pair, as
shown in Fig. 2, which makes it a compact solution. The major
drawback of SBI is that its boost factor is (1-D) times that of
ZSI. Therefore, it is not suited for very high boost inversion.
Both ZSI and SBI have maximum gain near D = 0.5.
This paper presents a current-fed dc/dc topology (CFT)
based inverter. The new inverter is named current-fed switched
inverter (CFSI). It has the following characteristics.