CN205942497U - Constant voltage power supply of triode control - Google Patents

Abstract

The utility model discloses a constant voltage power supply of triode control, including resistance R1, electric capacity C1, potentiometre RP1, triode VT1, diode D1 and triode VT4, diode D3 positive pole, resistance R3 and power VCC are connected respectively to triode VT4 collecting electrode, and triode VT4 projecting pole, diode D2 positive pole and electric capacity C1 are connected respectively to diode D3 negative pole, and output vo, the anodal summation potential ware RP1 one end of diode D1 are connected respectively to diode D2 negative pole, and it is anodal that diode D5 is connected to the potentiometre RP1 other end, and triode VT1 base is connected to potentiometre RP1 gleitbretter. The utility model discloses constant voltage power supply of triode control adopts a plurality of triodes cooperations rc -component, and to the excessive pressure with under -voltagely can both provide very strong voltage stabilizing function, with low costs, small, application scope is wide.

Description

The voltage-stabilized power supply that a kind of triode controls

Technical field

The utility model is related to a kind of voltage-stabilized power supply, the voltage-stabilized power supply that specifically a kind of triode controls.

Background technology

With the popularization of present electrical equipment, bring revolutionary change to industrial and agricultural production, Defence business, science and technology, Accelerate the development of society, people have stepped into Electrification Age, so that the quality of life of people is greatly improved, Increasingly it be unable to do without these electric equipments.With scientific and technological development, the precision of electric equipment also gradually steps up, and there occurs overturns the heavens covers The change on ground, but how to protect the not interfered by outside of these electric equipments, become the master of current development in science and technology concern Want problem.The electrical network of China is popularized at present, and it is many convenient that huge network system gives us.But it is as accessing electrical network User increase, and the variation of consumer electronics, also result in the unstable of line voltage, voltage fluctuated, also become Damage the principal element of electric equipment, the dc source of electrical equipment inside is substantially and is obtained after 220V electric main step-down rectifier Arrive, existing a lot of stabilized-voltage power supply controllers adopt special power management chip, relatively costly, how to design and take into account height surely Qualitative and inexpensive power circuit, is the emphasis of research in industry.

Utility model content

The purpose of this utility model is the voltage-stabilized power supply providing a kind of triode to control, to solve in above-mentioned background technology The problem proposing.

For achieving the above object, the utility model provides following technical scheme：

The voltage-stabilized power supply that a kind of triode controls, including resistance R1, electric capacity C1, potentiometer RP1, triode VT1, diode D1 and triode VT4, described triode VT4 colelctor electrode connects diode D3 positive pole, resistance R3 and power supply VCC, diode respectively D3 negative pole connecting triode VT4 emitter stage, diode D2 positive pole and electric capacity C1 respectively, diode D2 negative pole connects output end respectively Vo, diode D1 positive pole and potentiometer RP1 one end, the potentiometer RP1 other end connects diode D5 positive pole, potentiometer RP1 slide plate Connecting triode VT1 base stage, triode VT1 emitter stage connects diode D1 negative pole, and triode VT1 colelctor electrode connects resistance respectively R1 and resistance R2, resistance R2 other end connecting triode VT2 base stage, triode VT2 colelctor electrode connects the resistance R3 other end respectively With resistance R5, resistance R5 other end connecting triode VT3 base stage, triode VT3 colelctor electrode connects resistance R4, the resistance R4 other end Connecting luminous diode LED positive pole, LED negative pole connecting triode VT4 base stage, triode VT4 emitter stage is respectively Connect the electric capacity C1 other end, triode VT2 emitter stage, the resistance R1 other end and diode D5 negative pole.

As the utility model further scheme：Described power supply VCC voltage is 24V.

Compared with prior art, the beneficial effects of the utility model are：The voltage-stabilized power supply that the utility model triode controls, Coordinate Resistor-Capacitor Unit using multiple triodes, for over-pressed and under-voltage can provide very strong voltage stabilizing function, low cost, volume Little, applied widely.

Brief description

The circuit diagram of the voltage-stabilized power supply that Fig. 1 controls for triode.

Specific embodiment

Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out Clearly and completely description is it is clear that described embodiment is only a part of embodiment of the utility model rather than whole Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of making creative work The every other embodiment being obtained, broadly falls into the scope of the utility model protection.

Refer to Fig. 1, in the utility model embodiment, the voltage-stabilized power supply that a kind of triode controls, including resistance R1, electric capacity C1, potentiometer RP1, triode VT1, diode D1 and triode VT4, described triode VT4 colelctor electrode connects diode respectively D3 positive pole, resistance R3 and power supply VCC, diode D3 negative pole connecting triode VT4 emitter stage, diode D2 positive pole and electric capacity respectively C1, diode D2 negative pole connects output end vo, diode D1 positive pole and potentiometer RP1 one end respectively, and the potentiometer RP1 other end is even Connect diode D5 positive pole, potentiometer RP1 slide plate connecting triode VT1 base stage, triode VT1 emitter stage connects diode D1 and bears Pole, triode VT1 colelctor electrode connects resistance R1 and resistance R2, resistance R2 other end connecting triode VT2 base stage, triode respectively VT2 colelctor electrode connects the resistance R3 other end and resistance R5, resistance R5 other end connecting triode VT3 base stage, triode VT3 respectively Colelctor electrode connects resistance R4, resistance R4 other end connecting luminous diode LED positive pole, and LED negative pole connects three poles Pipe VT4 base stage, triode VT4 emitter stage connect respectively the electric capacity C1 other end, triode VT2 emitter stage, the resistance R1 other end and Diode D5 negative pole；Described power supply VCC voltage is 24V.

Operation principle of the present utility model is：Refer to Fig. 1, when output end vo voltage raises for some reason, warp After potentiometer RP1 and diode D5 sampling, after being compared with reference potential D1 by the base stage of VT1, VT1 colelctor electrode exports low level, Through two-stage amplifying circuit VT2, VT3, VT3 colelctor electrode exports low level, and the tube voltage drop of adjustment pipe VT4 increases, and makes VT4 emitter stage defeated Go out voltage to reduce, so that output end vo voltage reduces；When output end vo voltage reduces for some reason, it adjusts process Contrary with said process.

LED is relay indicating light, and potentiometer RP can adjust output end vo voltage swing, and diode D3 is mainly output capacitance C1 provides leakage current loop, thus avoiding adjusting the too high electric discharge of pipe VT4 and puncturing.

It is obvious to a person skilled in the art that the utility model is not limited to the details of above-mentioned one exemplary embodiment, and And in the case of without departing substantially from spirit or essential attributes of the present utility model, this practicality can be realized in other specific forms new Type.Therefore, no matter from the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, this practicality is new The scope of type is limited by claims rather than described above, it is intended that the containing of equivalency that will fall in claim All changes in justice and scope are included in the utility model.Any reference in claim should not be considered as limiting Involved claim.

Moreover, it will be appreciated that although this specification is been described by according to embodiment, not each embodiment only wraps Containing an independent technical scheme, only for clarity, those skilled in the art should for this narrating mode of specification Using specification as an entirety, the technical scheme in each embodiment can also form those skilled in the art through appropriately combined Understandable other embodiment.

Claims (2)

1. the voltage-stabilized power supply that a kind of triode controls, including resistance R1, electric capacity C1, potentiometer RP1, triode VT1, diode D1 With triode VT4 it is characterised in that described triode VT4 colelctor electrode connects diode D3 positive pole, resistance R3 and power supply respectively VCC, diode D3 negative pole connecting triode VT4 emitter stage, diode D2 positive pole and electric capacity C1 respectively, diode D2 negative pole is respectively Connect output end vo, diode D1 positive pole and potentiometer RP1 one end, the potentiometer RP1 other end connects diode D5 positive pole, current potential Device RP1 slide plate connecting triode VT1 base stage, triode VT1 emitter stage connects diode D1 negative pole, and triode VT1 colelctor electrode divides Not Lian Jie resistance R1 and resistance R2, resistance R2 other end connecting triode VT2 base stage, triode VT2 colelctor electrode connects electricity respectively The resistance R3 other end and resistance R5, resistance R5 other end connecting triode VT3 base stage, triode VT3 colelctor electrode connects resistance R4, electricity Resistance R4 other end connecting luminous diode LED positive pole, LED negative pole connecting triode VT4 base stage, triode VT4 Emitter stage connects the electric capacity C1 other end, triode VT2 emitter stage, the resistance R1 other end and diode D5 negative pole respectively.

2. the voltage-stabilized power supply that triode according to claim 1 controls is it is characterised in that described power supply VCC voltage is 24V.