Building block switching power supply system

Abstract

The present invention discloses a block-building switch power supply system. The system comprises switch power supply circuits and an upper computer, and more than two switch power supply circuits are connected in parallel, each switch power supply circuit consisting of one rectifying circuit, one power factor correction circuit, one voltage conditioning circuit and one current-sharing control circuit which are connected in order; and the upper computer is connected the current-sharing control circuit of each switch power supply circuit, wherein the alternating current is inputted from the rectifying circuits and the direct current is outputted from the voltage conditioning circuit. The block-building switch power supply system is able to adopt a block-building assembly and combination mode to allow a plurality of switch power supply circuits to connect in parallel and then share current at the control of an upper computer; the upper computer is configured to control each switch power supply circuit, so that the current-sharing precision and the system synthesis efficiency are improved, the work frequency and power of the block-building switch power supply system is enhanced and the reliability of the block-building switch power supply system is improved; and the average fault interval time is larger than twenty thousand hours, so that the block-building switch power supply system is easy to maintain, and the cost of the block-building switch power supply system is reduced.

Description

technical field [0001] The present invention relates to the field of power supply technology, more specifically, the present invention converts an original ecological power supply with poor power quality into a DC power supply with high equipment quality requirements, and is a building block switching power supply system. Background technique [0002] In the field of new energy, switching power supply is one of its important components, and switching power supply may even become an important factor in determining whether new energy is accepted by the market. With the vigorous development of new energy technology, switching power supply is also developing and promoting rapidly. [0003] However, the existing high-power switching power supplies often have problems such as low conversion efficiency, poor reliability, high failure rate, and high cost. In particular, for switching power supplies used in car charging systems, the problem is even more serious, resulting in the char...

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the defects of low power, low reliability and difficult maintenance in the existing switching power supply, the present invention discloses a building block switching power supply system, which controls multiple switching power supplies through the host computer, improves the current sharing accuracy and system synthesis efficiency, and further improves The operating frequency and power of the building block switching power supply system enhance the reliability of the building block switching power supply system

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