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Data backup device utilizing main capacitance discharge power source

A technology of data backup and discharge power supply, which is applied in the direction of measuring device, data processing power supply, measurement flow/mass flow, etc. It can solve the problems of unfavorable device miniaturization and power waste, and achieve the effect of preventing unnecessary waste and safe backup

Inactive Publication Date: 2005-06-22
LG ELECTRONIC (HUIZHOU) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0006] However, in addition to the above-mentioned use of the main capacitor 14, another backup capacitor 18 is also used, so it is very unfavorable for the miniaturization of the device. In addition, when the power line is disconnected, it is necessary to simply release the charging power of the main capacitor 14 that consumes a large capacity. cause unnecessary waste of electricity

Method used

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  • Data backup device utilizing main capacitance discharge power source
  • Data backup device utilizing main capacitance discharge power source

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Embodiment Construction

[0022] Next, specific embodiments of the data backup device using the main capacitor discharge power supply of the present invention will be described in detail with reference to the accompanying drawings. The main capacitor performs charging and discharging operations; the voltage stabilizing circuit is connected with the main capacitor to convert the power released by the main capacitor into a stable voltage; the microprocessor is connected with the voltage stabilizing circuit and uses the The stable voltage converted by the voltage stabilizing circuit is used for data backup.

[0023] figure 2 It is a structural diagram of the data backup device using the main capacitor discharge power supply of the present invention. For example, electronic equipment such as an audio device to which the present invention is applied includes: a transformer 20, a rectifier circuit 21, a relay (relay) 22, a power supply IC 23, a main capacitor 24, a microprocessor 26, a voltage stabilizing ...

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Abstract

This invention relates to a data backup device utilizing the master capacitor discharge over supply including: a master capacitor carrying out charge and discharge operation, a regulation circuit converting power supply discharged by said master capacitor to stabilized voltage, a micro-processor for backing up data by the converted stabilized voltage. Said microprocessor does not use independent backup capacitors but the discharged volume of the master capacitor to store the data backup of the stored control data.

Description

(1) Technical field [0001] The present invention relates to a kind of data backup device, especially refers to a kind of data backup that utilizes the main capacitor discharge power supply to automatically back up data in the microprocessor by using the electricity generated by the main capacitor when the power cord (power cord) falls off device. (2) Background technology [0002] figure 1 It is a structural diagram of a general data backup device using a backup capacitor discharge power supply. For example, electronic devices such as audio players include: transformer 10, rectifier circuit 11, power supply IC12, relay (relay) 13, main capacitor (Main_C) 14, microprocessor 16, voltage regulator circuit 17, backup capacitor (Backup_C) 18 etc. [0003] In addition, the power cord 15 for inputting external voltage to the above-mentioned transformer 10, such as 220V AC, can be plugged into and connected to the jack according to the user's choice, and can also be disconnected ...

Claims

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Application Information

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IPC IPC(8): G06F1/26G06F1/30
Inventor 片仁泰
Owner LG ELECTRONIC (HUIZHOU) CO LTD
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