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Direct current power supply with equipment protecting function

A protection function, a technology of DC power supply, applied in the field of power supply, can solve the problem of equipment protection that the power supply cannot be rated working power, and achieve the effect of avoiding damage to the equipment

Inactive Publication Date: 2015-05-13
XIAN HENGFEI ELECTRONICS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the problem that the existing power supply cannot protect the equipment according to the rated working power of the equipment

Method used

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  • Direct current power supply with equipment protecting function
  • Direct current power supply with equipment protecting function

Examples

Experimental program
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Effect test

Embodiment 1

[0012] a kind of like figure 1 , figure 2 The shown DC power supply with equipment protection function includes a housing 1, and also includes a display screen 2 and control buttons 3 arranged on the housing 1, as well as a current sensor, a voltage sensor, a power switch and An integrated circuit board, the integrated circuit board is provided with AD conversion circuit I, AD conversion circuit II and a single-chip microcomputer, and the power switch is connected in series in the output circuit of the power supply; the DC power supply with equipment protection function can The output is regulated by the rated working power to provide the best protection for the equipment, and it has the function of monitoring the output power of the power supply. If the output of the power supply exceeds the rated working power of the equipment, the output circuit will be automatically disconnected to protect the equipment and avoid damage to the equipment.

Embodiment 2

[0014] The above-mentioned current sensor is used to detect the current output signal of the power supply, and sends the signal to the AD conversion circuit II; the AD conversion circuit II is used to receive the signal sent by the current sensor, then digitize it, and send it to a single-chip microcomputer; the voltage sensor It is used to detect the voltage output signal of the power supply and send the signal to the AD conversion circuit I; the AD conversion circuit I is used to receive the signal sent by the voltage sensor, then digitize it, and send it to a single-chip microcomputer; the single-chip microcomputer is used for receiving control The command input by the button, and the signal sent by the AD conversion circuit Ⅰ and AD conversion circuit Ⅱ are then judged, and then the display screen is controlled to display information or the command received, and finally the power switch is turned on and off.

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Abstract

The invention belongs to the technical field of power supplies, and particularly relates to a direct current power supply with an equipment protecting function. The direct current power supply comprises a shell, and also comprises a display screen and a control button which are arranged on the shell, and a current sensor, a voltage sensor, a power switch and an integrated circuit plate which are arranged in the shell, wherein an analog-digital switching circuit I, an analog-digital switching circuit II and a singlechip are arranged on the integrated circuit plate; and the power switch is connected with an output circuit of the power supply in series. The direct current power supply with the equipment protecting function can adjust output according to a rated working poser of the equipment and protect the equipment, and has a function of monitoring the output power of the power supply; and if the power output exceeds the rated working power of the equipment, the output circuit is automatically turned off to protect the equipment, and the equipment cannot be damaged.

Description

technical field [0001] The invention belongs to the technical field of power supplies, and in particular relates to a DC power supply with equipment protection function. Background technique [0002] A power supply is a device that provides electrical energy. The power supply can convert other forms of energy into electrical energy, so this device that provides electrical energy is called a power supply. Common power sources are dry batteries (DC) and household 110V-220V AC power. Existing power supplies have relatively few protection measures for load equipment, generally within the load range of the power supply, and do not have the function of protection according to the rated operating power of the load, which is often not conducive to the service life of the equipment. Contents of the invention [0003] The purpose of the invention is to overcome the problem that the existing power supply cannot perform equipment protection according to the rated working power of th...

Claims

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Application Information

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IPC IPC(8): H02H3/42
Inventor 胡蓓
Owner XIAN HENGFEI ELECTRONICS TECH
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