Uncontrolled power supply short circuit protection device, method and medium

Abstract

The invention discloses an uncontrolled power supply short-circuit protection device and method and a medium, and provides an uncontrolled power supply short-circuit protection device aiming at the problem that a chip enters a retry state and cannot exit when constant power is used for supplying power to the chip at present, and the uncontrolled power supply short-circuit protection device comprises a controller, an enabling circuit, a voltage comparison circuit and a constant power supply, the constant power supply is connected with the enabling end of the controller through the enabling circuit; the voltage comparison circuit is connected with the output end and the enabling end of the controller, and when the magnitude relation between the voltage of the output end and the reference voltage is a preset relation, the voltage comparison circuit outputs a signal to the enabling end to enable the controller to be in a non-enabling state. When the controller enters the retry state, the voltage comparison circuit can detect the state and send out a control signal to pull down the enabling end of the controller, so that the controller is forced to exit the retry state, and the problem that the controller is prone to being burnt out due to the fact that the controller is in the retry state for a long time is solved.

Description

technical field [0001] The present application relates to the technical field of server hardware, in particular to an uncontrolled power supply short-circuit protection device, method and medium thereof. Background technique [0002] At present, there are situations where the power supply end or enable end of some controllers is connected to an uncontrolled power supply, such as the POL chip in the server. After the POL chip works normally, it will output a signal. At present, the power supply unit (PSU) of the server is usually provided. Constant power is supplied to the POL chip as an enabling signal, so that the POL chip can work normally and output signals to complete the corresponding control effect. The constant power here is an uncontrolled power supply. [0003] POL chip: Point of load chip, which refers to the single-phase buck power chip in the server, which integrates the controller of the buck circuit, the upper and lower tubes, and the upper and lower tube drive...

AI Technical Summary

Problems solved by technology

[0006] The purpose of this application is to provide an uncontrolled power supply short-circuit protection device, method and its medium to solve the problem that the chip enters the retry state and cannot exit when the current constant power is used to power the chip, thus greatly increasing the risk of burning the board

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