Method for solving problem of locking of mainboard due to power short circuit

Abstract

The invention discloses a method for solving a problem of locking of a mainboard due to a power short circuit in the field of computer power. Under the condition of keeping continuous power supply of input, the method comprises the following steps: 1, detection; 2, performing a no-output operation under the trigger control; 3, delaying; and 4, performing an output operation under the trigger control. According to the method, under the condition of keeping continuous power supply of input, when it is detected that a short circuit occurs to any one of four output voltages of +5V, 3.3V, +12V and -12V of an ATX power supply, an output voltage of +5VSB of the ATX power supply can be automatically started, and the mainboard of a computer cannot be locked, so that the computer can be restarted without the need for disconnection of the power supply; and the problem of locking of the mainboard is solved and automatic restarting is realized, so that the method can be applied to unattended automated startup occasions and is wider in application range.

Description

technical field

[0001] The invention relates to the field of computer power supplies, in particular to a method for solving the short-circuit locking of the motherboard power supply. Background technique

[0002] In the prior art computer working power supply, when the output voltage of any one of the four output voltages of the ATX output power supply +5V, 3.3V, +12V and -12V is short-circuited, under the condition of keeping the input uninterrupted, the +5VSB It exists continuously, that is, if the power supply has input, there will be +5VSB output.

[0003] However, when any of the four output voltages of ﹢5V, 3.3V, ﹢12V and -12V is short-circuited in the existing computer power motherboard, as long as the ATX output power supply has ﹢5VSB output, the computer motherboard will be locked. , cannot be restarted until the +5VSB voltage output is restarted before restarting, that is, it is necessary to disconnect the power supply of the motherboard and then reconnect the pow...

Examples

Embodiment Construction

[0020] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0021] In this embodiment, refer to figure 1 , a method for solving the short-circuit lockup of the mainboard power supply. In the case of keeping the input uninterrupted, the steps of the method are as follows: the first step, detection; the second step, trigger control without output; the third step, delay; the third step Four steps, the trigger control has an output.

[0022] The +5VSB output by the computer power supply is the auxiliary power supply of the computer power supply. It provides power for computer standby, mainly for chassis switches, network cards and other parts that need to wake up the functions required for computer startup. After the system is shut down, +5VSB still exists.

[0023] The first step is detection. The detection circuit is detected through the MCUI / O port or through the voltage monitoring chip. The d...

technical field

[0001] The invention relates to the field of computer power supplies, in particular to a method for solving the short-circuit locking of the motherboard power supply. Background technique

[0002] In the prior art computer working power supply, when the output voltage of any one of the four output voltages of the ATX output power supply +5V, 3.3V, +12V and -12V is short-circuited, under the condition of keeping the input uninterrupted, the +5VSB It exists continuously, that is, if the power supply has input, there will be +5VSB output.

[0003] However, when any of the four output voltages of ﹢5V, 3.3V, ﹢12V and -12V is short-circuited in the existing computer power motherboard, as long as the ATX output power supply has ﹢5VSB output, the computer motherboard will be locked. , cannot be restarted until the +5VSB voltage output is restarted before restarting, that is, it is necessary to disconnect the power supply of the motherboard and then reconnect the pow...

Examples

Embodiment Construction

[0020] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0021] In this embodiment, refer to figure 1 , a method for solving the short-circuit lockup of the mainboard power supply. In the case of keeping the input uninterrupted, the steps of the method are as follows: the first step, detection; the second step, trigger control without output; the third step, delay; the third step Four steps, the trigger control has an output.

[0022] The +5VSB output by the computer power supply is the auxiliary power supply of the computer power supply. It provides power for computer standby, mainly for chassis switches, network cards and other parts that need to wake up the functions required for computer startup. After the system is shut down, +5VSB still exists.

[0023] The first step is detection. The detection circuit is detected through the MCUI / O port or through the voltage monitoring chip. The d...

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