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In this paper, an interleaved high step-down DC-DC converter with low switch voltage stress is proposed. The proposed converter provides an extended duty cycle for switches and also, the voltage stress across two switches and two didoes is one fourth of the input voltage and for the other semiconductor elements is smaller than half of the input voltage. This voltage stress is much lower than that...
In this paper a high step-up/down DC-DC bidirectional converter is presented. The voltage stress of all switches in the proposed converter is one quarter of high side voltage, before switches turn on and after turn off. This makes it possible to use MOSFETs with lower voltage and reduced conduction and switching losses to improve the overall efficiency. The conversion ratio of the proposed converter...
In this paper a new high step-up DC-DC converter suitable for photovoltaic applications is investigated. Boosting the low input voltage in the proposed topology is implemented by using coupled inductors and one semiconductor switch. By using a passive regenerative clamp circuit, the energy of leakage inductor is absorbed and this provides a wider possible range of output power. Moreover, using just...
This paper proposes an interleaved zero voltage transition (ZVT) PWM buck converter. The proposed converter consists of two identical buck converter modules and an auxiliary circuit. The auxiliary circuit provides zero voltage switching condition for the main switches. Also, zero current switching condition for the auxiliary switch and diodes is achieved. The interleaved buck converter with the proposed...
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