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Overload indication buffering type power supply circuit

A power supply circuit and overload indication technology, which is applied in the direction of circuit devices, emergency protection circuit devices, electrical components, etc., can solve the problems of disconnection of power circuit circuit, difficulty in load investigation, and failure of power supply to load, etc., to reduce the impact , simple structure and low cost

Inactive Publication Date: 2018-02-02
CHENGDU HANXING TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

After the power circuit is disconnected, the power supply cannot supply power to the load, and the load will stop working
Since the load stops working due to abnormality, it is necessary to check the cause of the abnormality. It is difficult to find the power circuit disconnected due to the overload of the power load at the first time when using it, which brings great difficulties to the investigation of abnormal load shutdown.

Method used

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  • Overload indication buffering type power supply circuit
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Embodiment

[0017] Such as figure 1 , 2 As shown, the overload indicating buffer type power supply circuit of the present invention is mainly composed of a constant current source circuit, a transistor VT1, a transistor VT2, a transistor VT3, an operational amplifier P1, an indicator light BL, a capacitor C1, a capacitor C2, a capacitor C3, a capacitor C4, and a resistor R1, resistor R2, resistor R3, resistor R4, resistor R5, resistor R6, resistor R7, resistor R8, resistor R9, diode D1, voltage regulator diode D2 and diode D3. In order to ensure the practical effect of the present invention, the triodes VT1-VT3 are all realized by 3AX51 triodes, and the diode D1 is realized by a 1N4001 rectifier diode. The resistance value of the resistor R1 is 800Ω, the resistance value of the resistor R2 is 4.7kΩ, the resistance values ​​of the resistor R3 and the resistor R6 are both 500Ω, the resistance value of the resistor R4 is 22kΩ, and the resistance value of the resistor R5 is 1.5kΩ. The indic...

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PUM

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Abstract

The invention discloses an overload indication buffering type power supply circuit which is characterized in that the overload indication buffering type power supply circuit is mainly composed of a constant current source circuit, a triode VT1, a triode VT2, a triode VT3, an operational amplifier P1, an indicating lamp BL, a capacitor C1, a capacitor C2, a capacitor C3, a capacitor C4, a resistorR1, a resistor R2, a resistor R3, a resistor R4, a resistor R5, a resistor R6, a resistor R7, a resistor R8, a resistor R9, a diode D1, a voltage stabilizing diode D2 and a diode D3. The overload indication buffering type power supply circuit realizes reasonable structure design. The overload indication buffering type power supply circuit can satisfy the use requirement of a power supply circuit and furthermore can perform displaying through an indicating lamp when overload of a power consumption load occurs, thereby reminding a user of overload of the power consumption load. The user does notrequire consumption of time and energy for checking an abnormal condition which causes stoppage of the power consumption load, thereby realizing high convenience to the user and high convenience forpopularization.

Description

technical field [0001] The invention relates to a power supply circuit, in particular to an overload indicating buffer type power supply circuit. Background technique [0002] The power supply circuit is used to connect the power supply and the electric load, so as to supply the power to the load. When the load is overloaded, the power circuit will be disconnected to prevent damage to the electronic components and electrical loads of the power circuit. After the power circuit is disconnected, the power supply cannot supply power to the load, and the load will stop working. Since the load stops working due to abnormality, it is necessary to check the cause of the abnormality. It is difficult to find the power supply circuit disconnected due to the overload of the power load at the first time during use, which brings great difficulties to the investigation of abnormal load shutdown. Contents of the invention [0003] The purpose of the present invention is to provide an ov...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02H3/087H02H3/04H02M1/34
CPCH02H3/04H02H3/087H02M1/34H02M1/348
Inventor 李小林
Owner CHENGDU HANXING TECH CO LTD