Power distribution apparatus of DC-DC parallel power supply system

Abstract

The invention discloses a power distribution apparatus of a DC-DC parallel power supply system. The power distribution apparatus comprises a cuboid housing. The inner surface of the base plate of the housing is provided with a DC-DC module, a control circuit, and a heat-dissipating fan. A power input-output terminal strip is arranged on the outer sidewall of a long side of the housing. A display screen and a key panel are arranged on the top surface of the outer side of the housing. The control circuit is connected with the DC-DC module, the power input-output terminal strip, the display screen, and the key panel. The DC-DC module is formed on the basis of a single-ended flyback power supply of a UC3842 integrated controller. In a dual-DC-battery power supply system, the power distribution apparatus may easily adjust the power distribution of two power supplies by means of a visualized interface, guarantees output voltage with excellent quality and few ripples, achieves a load short circuit and automatic restoration functions. A low-power alarm lamp is disposed on the panel in order to indicate the energy state of the batteries in a visualized manner. The power distribution apparatus utilizes the metallic housing two sides of which are provided with heat-dissipating air vents, and is good in adaptability and reliability.

Description

technical field [0001] The invention belongs to the field of DC-DC dual power supply, and more precisely relates to the field of power distribution devices for dual power supply. Background technique [0002] With the development of electronic systems, power supply technology has also been developed accordingly, and the requirements for reliability, efficiency, and power density of power supplies are getting higher and higher. To solve the difficulties, improving the power supply reliability of single power supply system and designing parallel power supply system are indispensable technologies for power supply. [0003] In practical applications, in order to meet the needs of high power, parallel modular power supply technology is often used. This method reduces the current stress and thermal stress of the MOS tube, and improves the stability of the power system. However, a simple parallel connection cannot guarantee the stable and reliable operation of the power supply sy...

AI Technical Summary

Problems solved by technology

However, a simple parallel connection cannot guarantee the stable and reliable operation of the power supply system. There is a problem of current distribution between different batteries between modules, that is, the problem of power distribution between two modules.

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