Power supply

Abstract

A power supply device is applicable to an electronic device which is equipped with a non-volatile memory and supplies power to a power supply circuit of the non-volatile memory. The power supply device comprises a power consumer unit and a control unit, wherein, the power consumer is used for providing a power release path of the non-volatile memory, and the control unit is electrically connected with the power supply circuit, the non-volatile memory and the power consumer unit respectively, and the control unit is provided with a first connection terminal, a switching terminal and a second connection terminal, and is used for selectively and electrically being connected with the first connection terminal or the second connection terminal by the switching terminal, when the switching terminal is electrically connected with the first connection terminal, the power release path between the power consumer unit and the non-volatile memory is disconnected to ensure the normal operation of the non-volatile memory, and when the switching terminal is electrically connected with the second connection terminal, the power release path between the power consumer unit and the non-volatile memory is connected so as to perform discharge operations on the non-volatile memory by the power consuming unit, thus solving the defects in the prior art.

Description

technical field [0001] The present invention relates to a power control technology, more specifically, to a power supply device applied to power supply of non-volatile memory of an electronic device. Background technique [0002] Most electronic devices such as personal computers and servers are equipped with non-volatile memory, such as Complementary Metal-Oxide Semiconductor (CMOS), and Non-Volatile Random Access Memory (Non-Volatile Random Access Memory). ; NVRAM), etc., the non-volatile memory is used to store important information such as hard disk configuration information and BIOS setting parameters that are closely related to the operation of the electronic device. Therefore, it is necessary to supply working power to the non-volatile memory at all times to ensure Information stored in non-volatile memory is not lost. [0003] Please refer to FIG. 1 , which is a schematic diagram showing the working power supply circuit of the non-volatile memory. As shown in the f...

AI Technical Summary

Problems solved by technology

[0005] However, the operation of discharging the non-volatile memory in the above-mentioned way is relatively cumbersome, especially with the development of miniaturization of electronic devices, the density of components on the motherboard increases, and the space for placing the battery becomes smaller and smaller. In this way, it becomes more and more difficult to remove the battery from the motherboard

In addition, due to the natural power consumption method, the discharge speed depends on the configuration of the internal chip c

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