Journal ArticleDOI
Zero-Voltage-Switching Synchronous Buck Converter With a Coupled Inductor
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TLDR
The operating principle and a steady-state analysis of the proposed ZVS synchronous buck converter are presented and the reverse recovery problem associated with the body diode of the synchronous switch is solved.Abstract:
A zero-voltage-switching (ZVS) synchronous buck converter with a coupled inductor is proposed. An auxiliary circuit which is incorporated in the conventional synchronous buck converter allows power switches to operate with ZVS. Moreover, the reverse recovery problem associated with the body diode of the synchronous switch is solved. The operating principle and a steady-state analysis of the proposed ZVS synchronous buck converter are presented. Experimental results based on a 115-W prototype are provided to verify the effectiveness and feasibility of the proposed converter.read more
Citations
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Journal ArticleDOI
A Boost Converter With Capacitor Multiplier and Coupled Inductor for AC Module Applications
TL;DR: The proposed converter employs a Zeta converter and a coupled inductor, without the extreme duty ratios and high turns ratios generally needed for the coupled induction to achieve high step-up voltage conversion, to improve the energy-conversion efficiency.
Journal ArticleDOI
Analysis of Diode Reverse Recovery Effect on the Improvement of Soft-Switching Range in Zero-Voltage-Transition Bidirectional Converters
TL;DR: The problems associated with the soft-switching range and the reverse recovery of the rectifying diode are solved simultaneously, and soft- Switching condition for both operating modes of the bidirectional converter is achieved with no extra auxiliary components and no complex control.
Journal ArticleDOI
An Improved Soft-Switching Buck Converter With Coupled Inductor
TL;DR: This letter presents a novel topology for a buck dc–dc converter with soft-switching capability, which operates under a zero-current-switches condition at turn on and azero-voltage-switched condition at turned off.
Journal ArticleDOI
Step-Down Converter With Efficient ZVS Operation With Load Variation
TL;DR: Since the negatively built-up leakage inductor current is minimized after the zero voltage of the buck switch is achieved, the unnecessary current build-up and the conduction loss are minimized and efficient ZVS operation with load variation is achieved.
Journal ArticleDOI
A 2 MHz 12–100 V 90% Efficiency Self-Balancing ZVS Reconfigurable Three-Level DC-DC Regulator With Constant-Frequency Adaptive-On-Time $V^{2}$ Control and Nanosecond-Scale ZVS Turn-On Delay
TL;DR: A three-level buck converter topology with zerovoltage switching (ZVS) is adopted to remove the dominant switching power loss under high-input-voltage condition, thereby enabling the converter to achieve high power efficiency in the megahertz range and reduce the required values of power passives.
References
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Journal Article
A Novel Two Phase Interleaved LLC Series Resonant Converter using a Phase of the Resonant Capacitor
Kang-Hyun Yi,Gun-Woo Moon +1 more
TL;DR: In this paper, a two phase interleaved LLC resonant converter using a phase of the resonant capacitor is proposed to satisfy output voltage ripple and a rated ripple current of capacitors with few output capacitors.
Journal ArticleDOI
Zero-Voltage-Switching DC–DC Converters With Synchronous Rectifiers
TL;DR: In this paper, an active resonant tank (ART) cell is proposed to achieve zero-voltage switching (ZVS) and eliminate body-diode conduction in DC-DC converters with synchronous rectifiers (SRs).
Journal ArticleDOI
A Multistage Interleaved Synchronous Buck Converter With Integrated Output Filter in 0.18 $\mu$ m SiGe Process
TL;DR: In this paper, the authors presented a fully integrated multistage interleaved synchronous buck dc-dc converter with on-chip filter inductor and capacitor, which achieved 64% efficiency while providing an output current of 200 mA.
Journal ArticleDOI
Zero-voltage-switched quasi-resonant buck and flyback converters-experimental results at 10 MHz
TL;DR: In this paper, a buck and flyback zero-voltage-switched (ZVS) quasi-resonant converters (QRCs) operating above 5 MHz are proposed.
Journal ArticleDOI
A Practical Switching Loss Model for Buck Voltage Regulators
TL;DR: In this paper, a simple and accurate analytical switching loss model is proposed for synchronous buck voltage regulators (VRs), which includes the impact of common source inductance and switch parasitic inductances on switching loss.
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