STEP UP DC-DC CONVERTER WITH HIGH VOLTAGE GAIN USING SWITCHED INDUCTOR TECHNIQUES

STEP UP DC-DC CONVERTER WITH HIGH VOLTAGE GAIN USING SWITCHED INDUCTOR TECHNIQUES
Author(s):
S.Karthick, K.Sanjeevikumar, S.Bharathi, G.Karthikeyan
Keywords:
Coupled inductor, dc–dc, diode–capacitor, high voltage gain, low voltage stress, MATLAB
Abstract
The high-voltage gain converter is widely employed in many industry applications, such as photovoltaic systems, fuel cell systems, electric vehicles, and high-intensity discharge lamps. This paper a novel single-switch high step-up non isolated dc–dc converter integrating coupled inductor with extended voltage doubler cell and diode–capacitor techniques. The proposed converter achieves extremely large voltage conversion ratio with appropriate duty cycle and reduction of voltage stress on the power devices. Moreover, the energy stored in leakage inductance of coupled inductor is efficiently recycled to the output, and the voltage doubler cell also operates as a regenerative clamping circuit, alleviating the problem of potential resonance between the leakage inductance and the junction capacitor of output diode. These characteristics make it possible to design a compact circuit with high static gain and high efficiency for industry applications. The hardware design is implemented by PIC16F877A controller circuit.
Article Details
Unique Paper ID: 143273 Publication Volume & Issue: Volume 2, Issue 9 Page(s): 25 - 27
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