Mine-digital type intrinsically safe output power source

An intrinsically safe and output power technology, which is applied in the field of mine intrinsically safe output power supply and mine digital intrinsically safe output power supply, can solve the problem that the output parameters and status of the power supply cannot be remotely monitored, so as to improve reliability and facilitate maintenance Effect

CN104201914AInactive Publication Date: 2014-12-10TAIYUAN UNIV OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2014-12-10
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a mine-digital type intrinsically safe output power source and belongs to the technical field of measurement and control of coal mines. The mine-digital type intrinsically safe output power source is characterized by being composed of a switch-type intrinsically safe output power source body and digital control and communication, the intrinsically safe output power source is digitally controlled by applying digital control and communication technologies to the intrinsically safe output power source body, and information such as operation parameters (such as voltage and electric current) and operation conditions of the power source can be mastered in real time. The operation conditions of the intrinsically safe output power source can be monitored in real time and long-distance transmission of the intrinsically safe output can be realized, and output efficiency and operation reliability of the intrinsically safe output power source can be improved. The mine-digital type intrinsically safe output power source has the advantages that the power source is applicable to the flammable and combustible operation environment on underground coal mines, high in reliability, good in anti-interference performance, high in efficiency, capable of monitoring operation conditions remotely and the like.
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Description

technical field

[0001] The invention relates to a mine-used digital intrinsically safe output power supply, which belongs to the technical field of coal mine measurement and control, and specifically relates to a mine-used intrinsically safe output power supply using digital and communication technologies at the same time, which can grasp the working parameters (such as voltage and current) of the power supply in real time and working status information. It is suitable for the flammable and explosive working environment in coal mines. It has the advantages of high reliability, good anti-interference, and remote monitoring of working status. Background technique

[0002] With the improvement of coal mine automation and mechanization in my country, intrinsically safe electrical equipment is increasingly used in underground communication, monitoring, instrumentation, signal and automation systems. Compared with the ordinary flameproof form, the intrinsically safe output form h...

Examples

Embodiment approach 1

[0019] The present invention will be further described below in conjunction with the accompanying drawings.

[0020] Such as figure 1 As shown, the AC 127V power supply is input to the power conversion and output circuit 3 after the rectification circuit 1 and filter circuit 2, and the power conversion and output circuit 3 outputs a stable DC voltage under the action of feedback control. The feedback control loop is connected to the input end and output end of the power conversion and output circuit 3, and the loop includes a single chip microcomputer 14, a pulse width modulation circuit 15, a photoelectric isolation drive circuit 16, a first voltage and current transmission circuit 10 and a first A / D Converter 12. The output voltage and current signal of the power conversion and output circuit 3 is processed by the first voltage and current transmission circuit 10 and the first A / D converter 12, and then collected by the single-chip microcomputer 14, and the single-chip micr...