Intelligent self-protection power supply for computer

Abstract

The invention discloses an intelligent self-protection power supply for a computer. The intelligent self-protection power supply comprises a main power supply circuit, a super-capacitor battery set, a DC / DC (Direct Current / Direct Current) conversion module and a control circuit, wherein one end of the main power supply circuit is connected with commercial power; the other end of the main power supply circuit is connected with the super-capacitor battery set and the DC / DC conversion module through diodes respectively; one end of the control circuit is connected with the DC / DC conversion module; and the other end of the control circuit is connected with the super-capacitor battery set. When the two-phase commercial power is normally input, the main power supply circuit charges the super-capacitor module on one hand and outputs multiple sets of direct-current voltages through the DC / DC module to supply power to the computer on the other hand; and when the commercial power is abnormal or suddenly interrupted, the control circuit performs a switching action, the super-capacitor module starts to discharge electricity, and the voltage required by the computer is output through the DC / DC module so as to achieve off-delay protection.

Description

technical field [0001] The invention relates to a power supply, in particular to a computer intelligent self-protection power supply. Background technique [0002] In the information society, the application of computer is extremely extensive, already pervading all fields of economy, politics, military affairs and social life. At present, the application of computer can be summarized as the following aspects. 1. Scientific computing (or numerical computing) 2. Process detection and control3. Information management (data processing) 4. Computer-aided systems, including computer-aided design, computer-aided manufacturing, computer-aided design and computer-aided teaching. Computers play an important role, and powering them is important. Under normal circumstances, the computer power supply is directly connected to the two-phase mains, and the computer power supply outputs a DC voltage to supply power to the computer. If the power grid suddenly fails, it will cause damag...

AI Technical Summary

Problems solved by technology

[0003] 1. The cost is relatively high

[0004] The power of a computer power supply is about 250W to 500W, and the price is between 100 and 220 yuan, while a comparable UPS needs about 300 yuan, and the cost is relatively high.

[0005] 2. It takes up a lot of space

[0007] 3. It is not very convenient to carry

[0008] Since the external UPS and the computer power supply are independent of each other, it is separated from the chassis, which is quite inconvenient during the movement

[0009] 4. Poor energy storage components

Open lead-acid batteries, that is, storage batteries, are bulky, complex to maintain, and have corrosive gas discharge; maintenance-free batteries, also known as valve-regulated sealed lead-acid batteries, will damage the battery if it is not restored in time, and are sensitive to temperature. Short life, more expensive than lead-acid batteries; nickel-cadmium batteries are relatively expensive

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