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Soft-start voltage stabilizing circuit based on comparison and amplification circuit

A technology for comparing amplifying circuits and voltage stabilizing circuits, applied in electrical components, output power conversion devices, and converting AC power input to DC power output, etc., can solve problems such as long delay time and complex structure, and ensure stability , Improve the effect of pressure resistance

Inactive Publication Date: 2016-12-21
CHENGDU HANXING TECH CO LTD
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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 provide a soft-start voltage stabilizing circuit based on a comparative amplifier circuit, in order to solve the problem that the structures currently used to realize soft-start are relatively complicated and the start-up delay time is long

Method used

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  • Soft-start voltage stabilizing circuit based on comparison and amplification circuit
  • Soft-start voltage stabilizing circuit based on comparison and amplification circuit

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Experimental program
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Embodiment

[0016] Such as figure 1 , 2 As shown, the soft-start voltage stabilizing circuit based on the comparison amplifier circuit of the present invention is mainly composed of transformer T, diode rectifier U, transistor VT4, resistor R3, resistor R4, capacitor C1, capacitor C4, diode D2, diode D3, and soft start processing Circuit, comparison amplifier circuit and delay start circuit.

[0017] When connected, the anode of the capacitor C1 is connected to the positive output end of the diode rectifier U, and its cathode is connected to the negative output end of the diode rectifier U; the soft start processing circuit is connected to the anode and the cathode of the capacitor C1, respectively. The positive electrode of the capacitor C4 is connected to the soft start processing circuit, and the negative electrode is connected to the negative electrode of the capacitor C1. One end of the resistor R3 is connected to the anode of the capacitor C4, and the other end of the resistor R3 is co...

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Abstract

The invention discloses a soft-start voltage stabilizing circuit based on a comparative amplifying circuit, which is characterized in that it mainly consists of a transformer T, a diode rectifier U, a triode VT4, a resistor R3, a resistor R4, a capacitor C1, a capacitor C4, a diode D2, and a diode D3 , Soft-start processing circuit, comparison amplifier circuit and delay start circuit. The present invention can realize the soft start of the electronic product, so that the output voltage of the present invention will rise to a given value at a slower speed through a start-up process after the power is turned on, so as to protect the electronic product from the impact of the surge when starting ; When starting, the present invention can also guarantee the optimal delay time of about 30 seconds; it is suitable for popularization and application.

Description

Technical field [0001] The invention relates to a soft-start circuit, in particular to a soft-start voltage stabilizing circuit based on a comparison amplifier circuit. Background technique [0002] With the development of science and technology, electronic technology has developed rapidly, and the types of electronic products have become more and more abundant. Various electronic products have entered ordinary people's homes, making people's daily lives inseparable from electronic products. Since the performance of various electronic products is not the same, some electronic products require a soft start when in use, in order to protect the electronic products from being impacted by surges during startup. However, the current structures used to implement soft start are relatively complicated, and the start delay time is long, which brings great inconvenience to users. Summary of the invention [0003] The purpose of the present invention is to provide a soft-start voltage stabil...

Claims

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Application Information

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IPC IPC(8): H02M7/217H02M1/36
CPCH02M7/217H02M1/36
Inventor 不公告发明人
Owner CHENGDU HANXING TECH CO LTD