Supercapacitor discharge device and method

Abstract

The present invention relates to a supercapacitor discharge device and method, and the device comprises a voltage detector, a load, an adjustable resistor and a changeover switch, wherein the changeover switch includes a first tap position, a second tap position, and a third tap position. The voltage detector is connected with a supercapacitor, and the supercapacitor forms a loop with the load through the first tap position of the changeover switch. The supercapacitor forms a loop with the adjustable resistor through the second tap position of the changeover switch. The supercapacitor is grounded through the third tap position of the changeover switch. During discharge, the voltage detector is used to detect a voltage of the supercapacitor in real time. When the detected voltage is too large, the supercapacitor is connected to the load for discharge, thereby avoiding the risks caused by the direct grounding when the current is too large during discharge; when the voltage is smaller, the supercapacitor is connected with the adjustable resistor, and the resistance of the adjustable resistor is adjusted in real time according to the voltage value, so as to guarantee the stable discharge power, thereby effectively improving the discharge efficiency; when the voltage is weak, the supercapacitor is grounded to ensure complete discharge of the super capacitor.

Description

technical field [0001] The invention relates to the field of batteries, in particular to a supercapacitor discharge device and method. Background technique [0002] At present, it takes 40-60 minutes to discharge the supercapacitor, and the discharge time is too long; and if the discharge to the ground is directly used, it will be dangerous because the current of the supercapacitor is too large. [0003] Therefore, the current supercapacitor discharge has the following defects: the discharge efficiency is poor; and the discharge is relatively dangerous. Contents of the invention [0004] In order to solve the above technical problems, the present invention provides a supercapacitor discharge device. [0005] The technical solution of the present invention to solve the above-mentioned technical problems is as follows: a supercapacitor discharge device includes a voltage detector, a load, an adjustable resistor, and a switch, and the switch includes a first gear, a second g...

AI Technical Summary

Problems solved by technology

[0002] At present, it takes 40-60 minutes to discharge the supercapacitor, and the discharge time is too long; and if the discharge to the ground is directly used, it will be dangerous because the current is too large when the supercapacitor is discharged.

[0003] Therefore, the current supercapacitor discharge has the following defects: the discharge efficiency is poor; the discharge is more dangerous

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