Computer no-standby safety protection circuit

Abstract

The invention discloses a computer no-standby safety protection circuit which can automatically cut off communication interfaces and power of a computer only by normal shutdown. The computer no-standby safety protection circuit comprises a power switch or starting button, an alternating-current controllable contact device and a direct-current controllable contact device, wherein the alternating-current controllable contact device comprises an alternating-current driving circuit, two groups of power source normally-open contacts, a group of button normally-open contacts, and the direct-current controllable contact device comprises a direct-current driving circuit, two groups of power source normally-open contacts, a group of on and off normally-open contacts and a plurality of groups of communication normally-open contacts. Respective two groups of power source normally-open contacts in the alternating-current controllable contact device and the direct-current controllable contact device are correspondingly abutted one by one and then are serially connected into a live wire and a null wire of an alternating-current power source, and the alternating-current driving circuit is controlled by the starting button and the group of on and off normally-open contacts, which are serially connected. The direct-current driving circuit is controlled by direct-current output voltage of the computer, and a group of starting normally-open contacts is connected to a PW (pulse width) start control end of a computer mainboard. The computer no-standby safety protection circuit can isolate the power grid and external network from the computer.

Description

technical field [0001] The invention relates to a safety protection circuit of electrical equipment with a communication interface, in particular to a computer zero-standby safety protection circuit. Background technique [0002] At present, people usually turn off the power switch (early computers) or press the power button of the computer (most computers at present) after using the computer, or select the system shutdown and click the computer shutdown option to turn off the computer. , often because it is troublesome, either forget to unplug the network cable, or forget to cut off the connection between the power plug on the plug board used by the computer and the power grid. Many people think that the computer only needs to be turned off through the shutdown option in the system. There are examples to prove that some computer users did not unplug the power plug and network cable after using the computer. Hackers attacked the computer remotely and turned on the camera, a...

AI Technical Summary

Problems solved by technology

There are examples to prove that some computer users did not unplug the power plug and network cable after using the computer. Hackers attacked the computer remotely and turned on the camera, and the private life of the computer user’s husband and wife was exposed; The components in the computer are damaged due to lightning; in the standby state, because the network cable is not unplugged and the connection between the power plug on the plug board used by the computer and the power grid is not cut off, it may be attacked by lightning and hackers. cause standby power loss

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