A discharge protection circuit

Abstract

The embodiment of the invention relates to the technical field of protection circuits, and discloses a discharge protection circuit. In the present invention, it includes: a voltage conversion module, the voltage conversion module is connected to the external power supply, and is used to convert the voltage of the external power supply into the working voltage of the external power consumption unit; a voltage stabilization module, the voltage stabilization module is connected to the output terminal of the voltage conversion module , used to stabilize the working voltage output from the voltage conversion module to the external power consumption unit; the protection switch module, connected to the voltage stabilizing module, is used to release the electric energy in the external power consumption unit. By connecting the voltage stabilizing module to the output terminal of the voltage conversion module, when the voltage conversion module is turned on, the voltage output by the voltage conversion module can be stabilized to prevent voltage drop; at the same time, the protection switch module is connected to the voltage stabilizing module, and when the voltage conversion module is turned off , quickly release the electric energy in the external power-consuming unit, thereby reducing the time required for the power-on / off stress test.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of protection circuits, in particular to a discharge protection circuit. Background technique [0002] At present, with the wide application of WIFI technology, in order to make the performance of WIFI operation more stable, it is necessary to conduct a power-on / off stress test on the WIFI module, but the inventors have found the following problems in the prior art: During the test, it is required to turn on the WIFI power supply when starting up, and turn off the WIFI power supply when shutting down, and the WIFI power supply voltage must be lower than the low level setting value of the WIFI module before starting up. In fact, it is found that the entire test time is longer, mainly due to the power pins of the WIFI module. Place a lot of filter capacitors to filter out interference signals, but when the WIFI function is turned off, the WIFI module no longer consumes power, and the powe...

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Problems solved by technology

[0002] At present, with the wide application of WIFI technology, in order to make the performance of WIFI operation more stable, it is necessary to conduct a power-on / off stress test on the WIFI module, but the inventors have found the following problems in the prior art: During the test, it is required to turn on the WIFI power supply when starting up, and turn off the WIFI power supply when shutting down, and the WIFI power supply voltage must be lower than the low level setting value of the WIFI module before starting up. In fact, it is found that the entire test time is longer, mainly due to the power pins of the WIFI module. Place a lot of filter capacitors to filter out interference signals, but when the WIFI function is turned off, the WIFI module no longer consumes power, and the power stored on the filter capacitors will not be consumed immediately, it will take a long time to be consumed by the parasitic impedance in the circuit Consumption, resulting in a longer test time

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