Direct current power supply fuse monitoring device with sound-light reminding

A DC power supply and monitoring device technology, applied in the field of electronic technology applications, can solve the problems of judging fuses, disconnection, etc.

Inactive Publication Date: 2011-06-22
朱虹
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Especially those solid-core fast-acting fuses or fuses made of materials such as cer...

Method used

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  • Direct current power supply fuse monitoring device with sound-light reminding
  • Direct current power supply fuse monitoring device with sound-light reminding

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Experimental program
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Embodiment Construction

[0014] The present invention can be realized by implementing the circuit working principle diagram of the DC power supply fuse monitoring device with sound and light reminder shown in the accompanying drawings and the description of the drawings and the technical requirements of the components described below.

[0015] Component technical parameters and selection

[0016] Three-terminal integrated voltage regulator IC1, model selection 78L05;

[0017] VT1 is a silicon transistor 2CS8050, which can also be replaced by BC547;

[0018] VD1 can choose any type of self-flickering light-emitting diode;

[0019] VD2 is a switching diode, the model is IN4148;

[0020] VD3 is a red light-emitting diode, which is the indicator light of the load power supply;

[0021] The resistance value of resistor R1 is 1KΩ, and the resistance value of resistor R2 is 2KΩ;

[0022] Capacitor C1 has a capacity of 0.1μF;

[0023] HA selects the CPB14A12-4.0 miniature DC piezoelectric ceramic buzzer ...

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PUM

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Abstract

The invention belongs to the field of application of an electronic technique, and relates to a direct current power supply fuse monitoring device with sound-light reminding. The device consists of a direct current power supply, a 5V voltage stabilizing circuit, a transistor amplification circuit, a bias circuit, a fuse and a direct current power supply indicating lamp circuit, and is characterized in that a light emitting diode VD1 is connected in the bias circuit of the transistor amplification circuit; and the load in the transistor amplification circuit is a buzzer (HA). In a process of monitoring the direct current power supply fuse, once the fuse is fused, the monitoring device can assist a user or maintenance staff to quickly find a failure through sound or light reminding. Regarding solid core quick fuse or safety resistor made of ceramics and similar materials, whether the fuse is disconnected or not cannot be judged through appearance changes. Therefore, the direct current power supply fuse monitoring circuit is necessary. Due to the simple circuit, the direct current power supply fuse monitoring device is suitable to be additionally arranged in circuits of various direct current power supplies.

Description

technical field [0001] The invention belongs to the application field of electronic technology, and relates to a DC power supply fuse monitoring device with sound and light reminder. Background technique [0002] Fuses used as DC power supply safety protection are widely used because of their advantages of simple use, low price and wide application range. However, once the DC power fuse blows, you may not be able to find it immediately and replace them in time. If there is a circuit to monitor the working condition of the fuse, after the fuse of the DC power supply is blown, a sound or light prompt can be issued to help the user or maintenance personnel find the problem quickly and intuitively. Especially those solid-core fast-acting fuses or fuses made of materials such as ceramics, they cannot judge whether the fuse has been disconnected by the change in appearance. Therefore, it is necessary to make a DC power supply fuse monitoring device. [0003] In order to solve t...

Claims

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Application Information

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IPC IPC(8): H01H85/32
Inventor 朱虹
Owner 朱虹
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