Single-board power supply control circuit and electronic equipment

Abstract

The invention provides a single-board power supply control circuit and electronic equipment, and relates to the technical field of electronic circuits. The single-board power supply control circuit comprises a power-off control module, a restart control module, a control signal combining module and a power supply conversion module. The power-off control module comprises a first reset chip and a Dtrigger. The restart control module comprises a second reset chip, a third reset chip and a first output unit. The control signal combining module comprises an OR gate chip and a second output unit. The power-off control module and the restart control module are used for sending control signals to the control signal combining module based on restart signals sent by a processor, and the control signal combining module is used for controlling the power supply conversion module to carry out power-off non-restart or restart based on the control signals. The circuit realizes normal power-on, power-off and automatic power-on functions after the power-off of the system by utilizing the processing function of the single-board system, the circuit complexity is reduced, and the hardware design costand the maintenance cost are saved.

Description

technical field [0001] The present application relates to the technical field of electronic circuits, in particular, to a single-board power supply control circuit and electronic equipment. Background technique [0002] With the development of communication technology, the reliability, fault protection capability and maintainability requirements of communication equipment are getting higher and higher, while the design cost requirements are getting lower and lower. As one of the most important components in communication equipment, the single-board power control system is of great help to the maintainability and fault protection of the equipment. [0003] "Power failure alarm" and "power failure automatic restart" are the two most important functions in the single-board power control system. For example, when the system is overheated due to environmental reasons, in order to avoid fire or damage to the subsequent hardware circuit, the system needs to make intelligent judgmen...

AI Technical Summary

Problems solved by technology

[0006] In view of this, the purpose of the embodiment of the present application is to provide a single-board power supply control circuit and electronic equipment to improve the need to add MCU to realize functions such as power-off and restart in the prior art. The circuit structure is complicated, and the hardware design cost and maintenance high cost problem

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