System capable of monitoring and protecting power supply

Abstract

The invention discloses a system capable of monitoring and protecting a power supply. The system is used on the power supply and comprises a detection module, a temperature sampling chip module, a signal integration control module and a control terminal module, wherein the detection module is coupled with the signal integration control module and the power supply, the temperature sampling chip module is coupled with the signal integration control module, the signal integration control module is coupled with the detection module, the temperature sampling chip module, the control terminal module and the power supply, and the control terminal module is coupled with the signal integration control module. The system solves the problem of accurate overvoltage, undervoltage, overcurrent and over-temperature protection of a power supply system and intelligent monitoring of the power supply system.

Description

technical field [0001] The invention relates to the field of power supply protection and monitoring, in particular to a system capable of realizing power supply monitoring and protection. Background technique [0002] In the prior art, the protection of switching power supply for input and output overvoltage and undervoltage is based on the parameters of the switch chip, and analog sampling is used, so it is impossible to quantify the protection point accurately. The protection control range is too large, about 10%; when the protection is required When the precision is higher, comprehensive methods such as circuit redundancy, selection of high-precision devices, and multi-point sampling are generally used to realize the precise protection function of the input and output overvoltage and undervoltage of the switching power supply, but the circuit design of the above methods is complicated, and the accuracy of the protection point is limited , about 5%. [0003] For the prote...

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Problems solved by technology

[0002] In the prior art, the protection of switching power supply for input and output overvoltage and undervoltage is based on the parameters of the switch chip, and analog sampling is used, so it is impossible to quantify the protection point accurately. The protection control range is too large, about 10%; when the protection is required When the precision is higher, comprehensive methods such as circuit redundancy, selection of high-precision devices, and multi-point sampling are generally used to realize the precise protection function of the input and output overvoltage and undervoltage of the switching power supply, but the circuit design of the above methods is complicated, and the accuracy of the protection point is limited , approximately 5%

[0003] For the protection of switching power supply output overcurrent and short circuit, the cut-off type is usually used. When the overcurrent or short circuit occurs, the power supply will stop working, and the power supply can work normally only after restarting the power supply; it is not conducive to the application occasions that require self-recovery of the power supply

[0004] For the application environment that requires remote intelligent monitoring of the power supply system, the conventional switching power supply design can only provide power shutdown and alarm, especially for complex power supply systems with multiple outputs, it cannot provide more detailed information on the specific working status of the power supply. The equipment for some high-end applications is too simple to meet the needs of remote monitoring of high-demand unattended stations

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