Transient support protection system for super capacitor

Abstract

The invention belongs to the technical field of super capacitors, and discloses a transient support protection system for a super capacitor. The system comprises the super capacitor connected with a processor, the output end is connected with an external system through a one-way conduction module, a switch module and a sampling module in sequence, and the output end and the external system are also connected with a processor. The one-way conduction module is used for enabling one-way output power supply of the super capacitor according to a voltage difference between an external system and the super capacitor, the switch module is used for controlling electric connection between the external system and the super capacitor, and the sampling module is used for collecting a change state of a current signal from the external system; the processor judges whether the transient support protection system is subjected to high-frequency interference or not according to an acquisition result of the sampling module, and controls the switch-on and switch-off of the switch module by adopting a hysteresis control method in combination with the output voltage of the super capacitor and the driving voltage of the one-way conduction module; and the driving voltage of the one-way conduction module is ensured to meet the driving requirement in a high-frequency interference period.

Description

technical field [0001] The invention belongs to the technical field of supercapacitors, and in particular relates to a transient support protection system for supercapacitors. Background technique [0002] As the use of supercapacitors becomes more and more popular, the application and demand for supercapacitors are becoming more and more extensive. Because supercapacitors have very strong peak power and peak current handling capabilities, they can reach 100C charge and discharge capabilities, and can Discharging to 0V, unlike lithium batteries, does not support discharging to 0V. Therefore, in many occasions that need to deal with large peak current and peak power, there are more and more applications for the transient support of supercapacitors. The state support circuit requires both performance and cost and volume, and various application circuits have also been born. [0003] Traditional transient support circuits are basically unidirectional, or combined with special ...

AI Technical Summary

Problems solved by technology

[0004] The invention provides a transient support protection system for supercapacitors, which solves the problems that the suspension support circuit of the existing supercapacitors cannot realize low power consumption and pulse interference protection, etc.

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