Single Switch Asymmetrical High Step-Up DC–DC Converter Based on Differential Connection

High-voltage gain converters with differential connection have gained popularity. However, some hypotheses are imposed to achieve these topologies, such as the converters must be mirrored, among others. This fact makes the converters symmetrical and they have two or more switches. To demonstrate that this connection structure allows new combinations, in this article a new single switch and asymmetric topology is proposed based on the differential connection. This topology is based on a boost converter with a coupled inductor and a voltage multiplier cell. Even with a low number of components, the proposed converter has high-voltage gain, the components present low voltage and current stress. To demonstrate that the converter has good performance, two prototypes were built considering different values of the duty cycle and turns ratio of coupled inductor. From there, the maximum efficiency achieved is 97.5% at 200 W.