Zheng Zhao

TL;DR: In this article, a single-phase grid-connected transformerless photovoltaic inverter for residential application is presented, which is derived from a boost cascaded with a buck converter along with a line frequency unfolding circuit.

TL;DR: In this paper, a power factor correction (PFC) topology is proposed by inserting the valley-fill circuit in the single-ended primary inductance converter (SEPIC)-derived converter, which can reduce the voltage stress of the storage capacitor and output diode under the same power factor condition.

TL;DR: In this paper, a non-isolated, high boost ratio hybrid transformer dc-dc converter with applications for low-voltage renewable energy sources was proposed, which utilizes a hybrid transformer to transfer the inductive and capacitive energy simultaneously.

TL;DR: In this paper, a hybrid phase-shift full-bridge and half-bridge converter with shared zero-voltage switching (ZVS) lagging leg is proposed to ensure the switches in the Lagging leg operating at fully ZVS condition, and the dual outputs of the proposed hybrid FB-HB converter are connected in series and the whole dc-output voltage can be regulated by the PWM phase shift control within the desired voltage range.

TL;DR: In this article, a non-isolated, high boost ratio hybrid transformer dc-dc converter with applications for low voltage renewable energy sources is presented, which utilizes a hybrid transformer to transfer the inductive and capacitive energy simultaneously.