Computer security protection power source

Abstract

The invention discloses a computer security protection power source. The computer security protection power source comprises a transformer W, a chip I C1, an MOS tube Q1 and an MOS tube Q2. The two ends of a winding N1 of the transformer W are connected with the two ends of a rectifier bridge T respectively, one end of a winding N2 of the transformer W is connected with a transient voltage restraining diode DW and a port 1 of the rectifier bridge T, and a port 3 of the rectifier bridge T is connected with the other end of the transient voltage restraining diode DW and the other end of 220V alternate current. The structure is simple, the number of elements and components is small, the mains supply peak voltage restraining element is additionally arranged in a circuit, meanwhile, the LTC4352 chip is utilized as a control element, in this way, soft starting and the functions of overvoltage and under-voltage protection are achieved, and a chip inside a computer is effectively protected from being damaged by hot plugging; therefore, the computer security protection power source has the advantages of being long in service life, diversified in function and convenient to use.

Description

technical field [0001] The invention relates to a power supply, in particular to a computer safety protection power supply. Background technique [0002] With the continuous improvement of people's living standards, electronic equipment has become an indispensable part of life, especially computers and notebooks have brought great convenience to people's life and work. These electronic devices require a high precision High and high current regulated DC power supply. There are many types of regulated DC power supplies in the existing market, especially low-end products. Although low-end products have a price advantage over high-end products, the quality is often not satisfactory. Common regulated power supplies have single functions, short lifespan, Defects such as difficulty in debugging and maintenance, and although high-end products are reliable in quality, safe and stable, their high prices are also prohibitive. Therefore it needs to be improved. Contents of the inven...

AI Technical Summary

Problems solved by technology

There are many types of regulated DC power supplies in the existing market, especially low-end products. Although low-end products have a price advantage over high-end products, the quality is often not satisfactory. Common regulated power supplies have single functions, short lifespan, Defects such as difficulty in debugging and maintenance, while high-end products are reliable, safe and stable, but the price is prohibitive

Images