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A new multi-phase PWM DC-DC converter with an auxiliary circuit to reduced switching losses across the switches, is designed, in order to solve the problem of meeting the power supply requirements of the new generation microprocessor, which requires 40-100 A current, lower voltage and better current transient response. The multi-phase topology benefits in components size reduction resulting in power...
A novel zero-voltage switching (ZVS) step-down converter with a tapped inductor is proposed in this paper. Tapped inductor provides better power density as compared to isolation buck converter. With a simple structure, the tapped-inductor buck converter shows promise for extending the duty cycle. This converter is cost effective and attractive for high performance. Furthermore, with the replacement...
This paper proposes a zero-voltage transition (ZVT) PWM synchronous buck converter, which is designed to operate at low output voltage and high efficiency typically required for portable systems. To make the DC-DC converter efficient at lower voltage, synchronous converter is an obvious choice because of lower conduction loss in the diode. The high-side MOSFET is dominated by the switching losses...
This paper proposes a zero-voltage-transition (ZVT) pulse width modulated (PWM) synchronous buck converter, which is designed to operate at low voltage and high efficiency typically required for portable systems. A new passive auxiliary circuit that allows the main switch to operate with zero-voltage switching has been incorporated in the conventional PWM synchronous buck converter. The operation...
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