Switching Power Supply System in Parallel Based on Master-Slave Current Law

Abstract:

The design introduces the master-slave current sharing technology as the core, DC-DC converter consists of two parallel systems consisting of digital switching power supply. The design for the master MCU AVR mega16,driven by the IR2105 BUCK circuit composed of power MOSTL084 and TL494 consisting of voltage and current sampling and PWM generation circuit. The achievement of master-slave current-sharing technology, through the collection of the current in branch one and programmable gain to set the current in branch two, to reach the proportional relation of branch one and branch two. After testing, the system stabilizes with high control precision and high efficiency.

• Periodical: Applied Mechanics and Materials (Volumes 385-386)
• Pages: 1201-1204
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.385-386.1201
• Online since: August 2013
• Authors: Guo Hong Li, Fan Yu Meng
• Keywords: Current-Sharing, DC/DC, Master-Slave, Switching Power

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