Transformer antitheft system power supply circuit capable of improving power supplying stability

A technology of voltage stabilizing circuit and anti-theft system, applied in the direction of electrical components, output power conversion devices, etc., can solve the problems of high voltage of the transformer anti-theft system, influence monitoring, damage to the transformer anti-theft system, etc., to achieve low cost, stable voltage, and improved The effect of stability

Inactive Publication Date: 2017-02-08
刘代学
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The transformer anti-theft system is usually equipped with a battery for power supply. When the battery is conne

Method used

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  • Transformer antitheft system power supply circuit capable of improving power supplying stability

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Embodiment

[0020] Such as figure 1 As shown, the power supply circuit of the transformer anti-theft system that can improve the stability of power supply includes a battery, a primary signal filter circuit, a voltage regulator circuit, a secondary signal filter circuit and a power signal output line 1, wherein the voltage regulator circuit uses a MIC29302 chip, and its design There are power input pin Vin, power output pin Vout, enable pin EN, ground pin GND and floating pins, the ground pin GND of the voltage stabilizing circuit is grounded, and the battery is connected to the power input pin Vin of the voltage stabilizing circuit , the power signal output line 1 is connected to the power output pin Vout of the voltage stabilizing circuit, and the enable signal input line 2 is externally connected to the enable pin EN.

[0021] The primary signal filtering circuit of this embodiment includes capacitor one C1 and capacitor two C2, and one end of the parallel branch formed by connecting c...

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Abstract

The invention discloses a transformer antitheft system power supply circuit capable of improving power supplying stability. The transformer antitheft system power supply circuit comprises a battery, a primary signal filtering circuit, a voltage stabilizing circuit, a secondary signal filtering circuit and a power supply signal output wire, wherein the battery is connected with a power input pin of the voltage stabilizing circuit. The primary signal filtering circuit is connected between the battery and the power input pin of the voltage stabilizing circuit. The power supply signal output wire is connected with a power output pin of the voltage stabilizing circuit. The secondary signal filtering circuit is connected with the power supply signal output wire. The transformer antitheft system power supply circuit further comprises a first resistor and a second resistor. One end of the first resistor is connected between the node of the secondary signal filtering circuit on the power supply signal output wire and the voltage stabilizing circuit, and the other end is connected with a suspended pin of the voltage stabilizing circuit. One end of the second resistor is connected between the first resistor and the suspended pin of the voltage stabilizing circuit, and the other end is grounded. The transformer antitheft system power supply circuit can prevent performance reduction of the transformer antitheft system by surge voltage and furthermore ensures normal operation in monitoring.

Description

technical field [0001] The invention relates to transformer anti-theft technology, in particular to a power supply circuit for a transformer anti-theft system that can improve power supply stability. Background technique [0002] In recent years, the theft of power facilities has occurred frequently, which not only threatens the safe operation of the power grid, but also seriously affects industrial and agricultural production and people's daily electricity consumption. In order to ensure the reliable operation of the power grid, improve the anti-theft performance of the power facilities themselves, and minimize the theft of power facilities, this has become a problem that people generally pay attention to. [0003] In the theft of power facilities, the proportion of stealing the whole transformer or stealing the copper core of the transformer is relatively high. Therefore, solving the problem of transformer theft has become an important link to prevent the theft of power fa...

Claims

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Application Information

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IPC IPC(8): H02M1/34
CPCH02M1/34
Inventor 刘代学
Owner 刘代学
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