Clock control strategy of four-phase Dickson charge pump for power efficiency improvement

2008 ◽  
Author(s):  
Kai Yu ◽  
Xuecheng Zou ◽  
Dongsheng Liu ◽  
Guoyi Yu ◽  
Jianming Lei ◽  
...  
Keyword(s):  
Control Strategy ◽  
Power Efficiency ◽  
Charge Pump ◽  
Efficiency Improvement

scholarly journals High Step-Up Converter Based on Non-Series Energy Transfer Structure for Renewable Power Applications

Micromachines ◽  
2021 ◽  
Vol 12 (6) ◽  
pp. 689
Author(s):  
Luis Humberto Diaz-Saldierna ◽  
Jesus Leyva-Ramos
Keyword(s):  
Power Efficiency ◽  
Common Ground ◽  
Linear Models ◽  
Efficiency Improvement ◽  
Boost Converters ◽  
Renewable Power ◽  
Current Design ◽  
Alternative Sources ◽  
Transfer Structure ◽  
Laboratory Prototype

In this paper, a high step-up boost converter with a non-isolated configuration is proposed. This configuration has a quadratic voltage gain, suitable for processing energy from alternative sources. It consists of two boost converters, including a transfer capacitor connected in a non-series power transfer structure between input and output. High power efficiencies are achieved with this arrangement. Additionally, the converter has a common ground and non-pulsating input current. Design conditions and power efficiency analysis are developed. Bilinear and linear models are derived for control purposes. Experimental verification with a laboratory prototype of 500 W is provided. The proposed configuration and similar quadratic configurations are compared experimentally using the same number of components to demonstrate the power efficiency improvement. The resulting power efficiency of the prototype was above 95% at nominal load.

An area-saving and high power efficiency charge pump built in a TFT-LCD driver IC

2009 ◽  
Vol 30 (9) ◽  
pp. 095015
Author(s):  
Zheng Ran ◽  
Wei Tingcun ◽  
Wang Jia ◽  
Gao Deyuan
Keyword(s):  
High Power ◽  
Power Efficiency ◽  
Charge Pump ◽  
Lcd Driver ◽  
High Power Efficiency

A Method to Improve Switching Power Supply Efficiency at Light Load with DSP Control

2016 ◽  
Vol 698 ◽  
pp. 133-141
Author(s):  
Chuan Gao ◽  
Guang Lei Jin ◽  
Ri Chen Jiang ◽  
Mu Rong Li ◽  
Masashi Ochiai ◽  
...  
Keyword(s):  
Power Supply ◽  
Power Efficiency ◽  
Control Method ◽  
Efficiency Improvement ◽  
Switching Power Supply ◽  
Power Circuit ◽  
Switching Power ◽  
Light Load ◽  
Result Show ◽  
Dsp Control

This paper discusses a digital control method for efficiency improvement of switching power circuit at light load by using C2000 Series DSP (Texas Instruments Inc.). In this work, we alter the module in DSP to adjust the link voltage between a bridgeless PFC AC/DC converter and a phase shift full bridge DC/DC converter, as well as to control the PWM frequency of power circuit in order to improve the power efficiency in a suitable way. Our experiments result show that the efficiency of the power circuit at half or light load improves by adjusting the link voltage and/or PWM frequency

Power efficiency improvement of the full bridge current resonant DC-DC converter

2011 ◽  
Author(s):  
Hisatsugu Kato ◽  
Hirofumi Matsuo ◽  
Tsubasa Ito ◽  
Shuhei Kawazu ◽  
Daiki Kawahara ◽  
...  
Keyword(s):  
Power Efficiency ◽  
Efficiency Improvement
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