Journal ArticleDOI
Analysis and Design of a High-Frequency DC/DC Converter Based on a Resonant Rectifier
TLDR
A systematic and effective design method for a current-driven class E circuit is proposed in this paper, which consists of the detailed theoretical analysis and numerical derivation that can achieve optimal results with the optimal design method of the rectifier.Abstract:
In high-frequency dc/dc converters, the resonant rectifier is an important stage that guarantees high efficiency and optimal operating characteristics. However, the existing design approaches are based on trial methods and cannot achieve optimal results. A systematic and effective design method for a current-driven class E circuit is proposed in this paper, which consists of the detailed theoretical analysis and numerical derivation. Furthermore, with the optimal design method, the input impedance of the resonant rectifier can maintain quasi-resistive characteristics. Demonstration of this approach is provided through the experimental results of a 20 MHz dc/dc prototype. The system efficiency can be as high as 81.5% based on the optimal design method of the rectifier.read more
Citations
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Journal ArticleDOI
Load-Independent Class E/EF Inverters and Rectifiers for MHz-Switching Applications
TL;DR: A unified framework for the modeling, analysis, and design of load-independent Class E and Class EF inverters and rectifiers that are able to maintain zero-voltage switching and, hence, high efficiency for a wide load range without requiring tuning or use of a feedback loop.
Journal ArticleDOI
Duty Cycle and Frequency Modulations in Class-E DC–DC Converters for a Wide Range of Input and Output Voltages
Sanghyeon Park,Juan Rivas-Davila +1 more
TL;DR: In this paper, the authors present an operation scheme for a dc-dc converter consisting of a class-E inverter and a class E rectifier to always achieve zero-voltage zero-$dv\text{/}dt$ switching at a wide range of input and output voltages.
Journal ArticleDOI
A Bidirectional CDT-LC Resonant DC–DC Converter With a Wide Voltage Range
TL;DR: A novel high conversion ratio bidirectional C-dual transformers-LC (CDT-LC) resonant dc–dc converter is proposed, based on the traditional LLC, and it not only harvests high efficiency, but exhibits a good voltage gain feature.
Journal ArticleDOI
Analysis and Design of High-Frequency Converter With Resistive Matching Network and Spiral Inductor
TL;DR: In this paper, two resistive matching networks are proposed, which can maintain the resistive transferring property under different load conditions, and a 20-MHz high-frequency dc/dc converter based on the T-type matching network and circular spiral inductor is designed.
Journal ArticleDOI
A Novel Single Switch High-Frequency DC/DC Converter and Its Mathematical Model
TL;DR: In the proposed converter, the switch can operate in ZVS condition, which can help to reduce the switching loss and the switch voltage stress is reduced based on optimal switch impedance.
References
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Journal ArticleDOI
Zero-voltage-switching multi-resonant technique-a novel approach to improve performance of high frequency quasi-resonant converters
W.A. Tabisz,Fred C. Lee +1 more
TL;DR: In this paper, a novel multiresonant switch concept is proposed to overcome the parasitic oscillations caused by the junction capacitance of the rectifying diode, which results in favorable switching conditions for all devices.
Journal ArticleDOI
Class E Resonant Regulated DC/DC Power Converters: Analysis of Operations, and Experimental Results at 1.5 MHz
TL;DR: In this article, a resonant high-frequency dc/dc converter with a 1.5-MHz switching frequency is presented, which works virtually without dynamic losses at several MHz switching frequency.
Proceedings ArticleDOI
Zero-voltage-switching multi-resonant technique-a novel approach to improve performance of high frequency quasi-resonant converters
Journal ArticleDOI
PWM Series Dimming for Slow-Dynamics HPF LED Drivers: the High-Frequency Approach
TL;DR: The high-frequency series PWM dimming technique is introduced, which overcomes all the challenges faced when developing PWMDimming capabilities in low slew-rate constant-current fixed-frequency-controlled converters and offers all the advantages of PWMdimming over analog dimming while maintaining good efficiency.
Proceedings ArticleDOI
Class DE inverters and rectifiers for DC-DC conversion
TL;DR: In this article, a new family of Class DE inverters and related rectifiers is presented, based on the Class D RF inverter, the circuits feature Class E switching transitions (zero voltage, zero dv/dt), giving low switching losses despite device capacitance and stored charge, combined with low voltage stress.
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