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Energies 2019, 12(4), 576; https://doi.org/10.3390/en12040576

A Mutual Blocking Technology Applied to Dual Power Source Switching Control

1
School of Computer Engineering, University of Electronic Science and Technology of China, Zhongshan Institute, Zhongshan 528402, China
2
Computer and Intelligent Robot Program for Bachelor Degree, National Pingtung University, Pingtung 90004, Taiwan
3
School of Electrical Engineering and Automation, Jiangxi University of Science and Technology, Ganzhou 341000, China
*
Author to whom correspondence should be addressed.
Received: 15 December 2018 / Revised: 30 January 2019 / Accepted: 4 February 2019 / Published: 13 February 2019
(This article belongs to the Special Issue Selected Papers from TIKI ICICE 2018)
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Abstract

In many industries and medical power system applications, dual power source design is often used to ensure that the equipment runs continuously, even when the main power supply is shut down. However, the voltage feedback between two independent power supplies and low loss output are critical issues for the system energy dissipation. Without using a dedicated chip, a new mutual blocking control technology is proposed in this paper to effectively solve the problem of voltage feedback existing in the conventional dual power system. In addition, without adding much hardware cost, the proposed dual power switch design can completely avoid voltage feedback and achieve a low voltage loss of about 30 mV when the load current is less than 0.5 A. View Full-Text
Keywords: dual power source switch; mutual blocking control technology; low loss output; voltage feedback dual power source switch; mutual blocking control technology; low loss output; voltage feedback
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Chen, H.-C.; Kuo, P.-H.; Huang, C.-J. A Mutual Blocking Technology Applied to Dual Power Source Switching Control. Energies 2019, 12, 576.

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