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A DC stabilizer circuit

A DC voltage stabilizer circuit and resistance technology, applied in the direction of conversion equipment without intermediate conversion to AC, can solve the problems of inconvenient low-power power supply system, affecting circuit operation, output voltage fluctuation, etc., to achieve good temperature stability and small fluctuation. , the effect of small temperature coefficient

Inactive Publication Date: 2016-01-20
昆山龙仕达电子材料有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In electronic systems, it is often necessary to convert the AC grid voltage into a stable DC voltage. In order to ensure that the output voltage does not fluctuate due to changes in grid voltage, load, and temperature, a voltage stabilization circuit is usually used, but the voltage stabilization effect is poor. , resulting in a large number of fluctuations in the output voltage, which affects the operation of subsequent circuits. The general circuit is complex and consumes a lot of power, which is not convenient for low-power power supply systems.

Method used

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  • A DC stabilizer circuit

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Embodiment Construction

[0012] Such as figure 1 As shown, the present invention includes triodes, diodes, resistors and capacitors, the base of the first triode (Q1) is connected to the cathode of the third diode (D3) through the first resistor (R1), and the first three The base of the diode (Q1) is connected to the anode of the first diode (D1), the cathode of the first diode (D1) is connected to the cathode of the second diode (D2), and the second The anode of the diode (D2) is grounded, the anode of the third diode (D3) is connected to a positive voltage, and the collector of the first triode (Q1) is connected with the fourth diode (D4) The base of the third transistor (Q3) is connected, the collector of the first transistor (Q1) is connected to the anode of the fourth diode (D4), and the emitter of the first transistor (Q1) is connected to the anode of the fourth diode (D4). The emitters of the two transistors (Q2) are connected to each other, and both are grounded through the third resistor (R3...

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Abstract

The invention discloses a direct current voltage stabilizing circuit. The circuit comprises a triode, a diode, a resistor and a capacitor. By the utilization of the characteristics of the diode and the characteristics of the capacitor, the output voltage is made to be high in stability and small in fluctuation, and the direct current voltage stabilizing circuit is small in temperature coefficient, good in temperature stability, low in noise, simple in structure and applicable to low-voltage power supplies.

Description

technical field [0001] The invention relates to a voltage stabilizing circuit, in particular to a direct current voltage stabilizing circuit. Background technique [0002] In electronic systems, it is often necessary to convert the AC grid voltage into a stable DC voltage. In order to ensure that the output voltage does not fluctuate due to changes in grid voltage, load, and temperature, a voltage stabilization circuit is usually used, but the voltage stabilization effect is poor. , resulting in a large number of fluctuations in the output voltage, which affects the operation of subsequent circuits. The general circuit is complex and consumes a lot of power, which is not convenient for low-power power supply systems. [0003] Therefore need a kind of new technical scheme to solve the above problem. Contents of the invention [0004] Purpose of the invention: Aiming at the problems and deficiencies in the above-mentioned prior art, the purpose of the invention is to provid...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02M3/07
Inventor 王火明
Owner 昆山龙仕达电子材料有限公司