Analysis and Design of a High Efficiency Boost DC-DC Converter Based on Pulse-Frequency Modulation

2007 ◽  
Author(s):  
Xin Liu ◽  
Shuxu Guo ◽  
Shuai Wang ◽  
Feng Xu ◽  
Guotong Du ◽  
...  
Keyword(s):  
Frequency Modulation ◽  
High Efficiency ◽  
Pulse Frequency ◽  
Pulse Frequency Modulation ◽  
Analysis And Design

scholarly journals Analysis and Design of High-Efficiency Bidirectional GaN-Based CLLC Resonant Converter

Energies ◽  
2019 ◽  
Vol 12 (20) ◽  
pp. 3859
Author(s):  
Yuanjun Liu ◽  
Guiping Du ◽  
Xueyi Wang ◽  
Yanxiong Lei
Keyword(s):  
Design Methodology ◽  
High Efficiency ◽  
Pulse Frequency ◽  
Resonant Converter ◽  
Pulse Frequency Modulation ◽  
Zero Voltage Switching ◽  
Analysis And Design ◽  
Reverse Mode ◽  
Parasitic Parameters ◽  
Zero Voltage

A bidirectional CLLC resonant converter (CLLC-BRC) based on GaN transistors is analyzed and designed in this paper. Similar resonant topologies are listed and commented on, with the CLLC topology showing competitiveness in bidirectional energy transmission. The analysis of the aforementioned converter has been provided, including the reveal of resonant frequencies of the CLLC topology and an improved zero-voltage switching (ZVS) condition with operation principles of the reverse mode and relevant parasitic parameters taken into account. The design methodology of the aforementioned converter based on pulse frequency modulation (PFM) is further discussed in detail. A prototype with a rated power of 400 W and a maximal operating frequency that is larger than 0.5 MHz was built to verify the proposed design methodology. The highest conversion efficiency of the prototype was 97.02% in the forward mode, and it was 95.96% in the reverse mode.

Demonstration of 6-bit, 0.20-mVpp Quasi-Triangle Voltage Waveform Generator Based on Pulse-Frequency Modulation

2014 ◽  
Vol E97.C (3) ◽  
pp. 194-197 ◽  
Author(s):  
Yoshitaka TAKAHASHI ◽  
Hiroshi SHIMADA ◽  
Masaaki MAEZAWA ◽  
Yoshinao MIZUGAKI
Keyword(s):  
Frequency Modulation ◽  
Pulse Frequency ◽  
Waveform Generator ◽  
Voltage Waveform ◽  
Pulse Frequency Modulation
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