CN104467083A - Voltage-stabilized power circuit applicable to quality management system - Google Patents
Voltage-stabilized power circuit applicable to quality management system Download PDFInfo
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- CN104467083A CN104467083A CN201410679085.0A CN201410679085A CN104467083A CN 104467083 A CN104467083 A CN 104467083A CN 201410679085 A CN201410679085 A CN 201410679085A CN 104467083 A CN104467083 A CN 104467083A
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- triode
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- collector electrode
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
- H02M3/44—Conversion of dc power input into dc power output with intermediate conversion into ac by combination of static with dynamic converters; by combination of dynamo-electric with other dynamic or static converters
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Electrical Variables (AREA)
Abstract
The invention discloses a voltage-stabilized power circuit applicable to a quality management system. The voltage-stabilized power circuit comprises an intermittent oscillator and an audion V2, the intermittent oscillator comprises an audion V1, the collector electrode of the audion V2 is connected to the base electrode of the audion V1, the base electrode of the audion V2 is connected with the emitting electrode of an audion V3 through a resistor R2, the collector electrode of the audion V3 is connected with the emitting electrode of the audion V1, a resistor R3 is connected between the base electrode and the collector electrode of the audion V3, the base electrode of the audion V3 is connected with two immovable ends of a single-pole double-throw switch K through a voltage-stabilized diode D2 and a voltage-stabilized diode D3 respectively, the movable end of the single-pole double-throw switch K is connected with the voltage output end, the collector electrode of the audion V1 is connected to the negative electrode of a diode D1, the positive electrode of the diode D1 is connected with the voltage output end through an inductor L1, and a ground capacitor C3 is further connected to the positive electrode of the diode D1. The output voltage is selectable, and therefore requirements of different supply voltages can be met.
Description
Technical field
The present invention relates to integrated circuit fields, particularly, relate to a kind of voltage-stabilized power supply circuit being suitable for quality control system.
Background technology
In industries such as automobile industry, equipment manufacture, space flight, aviations, there is quality management system, in order to better monitor quality according to standard, adopt quality control system.Quality control system can help enterprise to realize light, specification, careful production business.Its comprehensive control that can realize material and information of quality control system, and enterprise can be assisted effectively to control every manufacture site activity information.
Quality control system relies on hardware device and exists, and management system stable operation of will ensuring the quality of products, the stability of its power supply is a considerable key factor.The power circuit of existing quality control system, after the input of its voltage, directly voltage stabilizing supplies each module, but, because the module number in quality control system is many, voltage needed for each module is different, and the stability that module is run is affected, and the stability of quality control system is also affected.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of voltage-stabilized power supply circuit being suitable for quality control system, and its output voltage is optional, meets the demand of different power voltage, the stable operation of management system of ensuring the quality of products.
The present invention's adopted technical scheme that solves the problem is:
Be suitable for the voltage-stabilized power supply circuit of quality control system, comprise Filter capacitance device, triode V2 and triode V3, described Filter capacitance device comprises triode V1, in the base stage that the collector electrode of described triode V2 is connected to triode V1 and grounded emitter, the base stage of described triode V2 is connected with the emitter of triode V3 by resistance R2, the collector electrode of described triode V3 is connected with the emitter of triode V1, resistance R3 is connected with between the base stage of described triode V3 and collector electrode, the base stage of described triode V3 respectively by voltage stabilizing didoe D2 and voltage stabilizing didoe D3 and single-pole double-throw switch (SPDT) K two not moved end be connected, the moved end of described single-pole double-throw switch (SPDT) K is connected with voltage output end, the collector electrode of described triode V1 is connected to the negative pole of diode D1, the positive pole of described diode D1 is connected with voltage output end by inductance L 1, the positive pole of described diode D1 is also connected with ground capacity C3, described voltage stabilizing didoe D2 is different with the puncture voltage of voltage stabilizing didoe D3.
As preferably, described formula of having a rest oscillator also comprises transformer T, resistance R1 is connected with between the base stage of described triode V1 and emitter, one end ground connection on the described former limit of transformer T and the other end is connected on the collector electrode of triode V1, described transformer T secondary one end to be connected with the emitter of triode V1 by electric capacity C1 and the other end is connected with the base stage of triode V1 by electric capacity C2.
Further, described triode V1 is PNP type triode, and described triode V2 and triode V3 is NPN type triode.
To sum up, the invention has the beneficial effects as follows:
1, output voltage of the present invention controls by single-pole double-throw switch (SPDT) K, and namely its exportable two kinds of different voltages, meet the demand of different power voltage, the stable operation of management system of ensuring the quality of products
2, circuit structure of the present invention is simple, and voltage stable output, improve the stability that quality control system runs.
Accompanying drawing explanation
Fig. 1 is circuit theory diagrams of the present invention.
Embodiment
Below in conjunction with embodiment and accompanying drawing, to the detailed description further of the present invention's do, but embodiments of the present invention are not limited thereto.
Embodiment 1:
A kind of voltage-stabilized power supply circuit being suitable for quality control system as shown in Figure 1, comprise Filter capacitance device, triode V2 and triode V3, described Filter capacitance device comprises triode V1, in the base stage that the collector electrode of described triode V2 is connected to triode V1 and grounded emitter, the base stage of described triode V2 is connected with the emitter of triode V3 by resistance R2, the collector electrode of described triode V3 is connected with the emitter of triode V1, resistance R3 is connected with between the base stage of described triode V3 and collector electrode, the base stage of described triode V3 respectively by voltage stabilizing didoe D2 and voltage stabilizing didoe D3 and single-pole double-throw switch (SPDT) K two not moved end be connected, the moved end of described single-pole double-throw switch (SPDT) K is connected with voltage output end, the collector electrode of described triode V1 is connected to the negative pole of diode D1, the positive pole of described diode D1 is connected with voltage output end by inductance L 1, the positive pole of described diode D1 is also connected with ground capacity C3, described voltage stabilizing didoe D2 is different with the puncture voltage of voltage stabilizing didoe D3.
Described formula of having a rest oscillator also comprises transformer T, resistance R1 is connected with between the base stage of described triode V1 and emitter, one end ground connection on the described former limit of transformer T and the other end is connected on the collector electrode of triode V1, described transformer T secondary one end to be connected with the emitter of triode V1 by electric capacity C1 and the other end is connected with the base stage of triode V1 by electric capacity C2.
Described triode V1 is PNP type triode, and described triode V2 and triode V3 is NPN type triode.
The height of its output voltage of the power circuit of the present embodiment out is determined by the puncture voltage of voltage stabilizing didoe D2/ voltage stabilizing didoe D3.Therefore, as long as the link position changing single-pole double-throw switch (SPDT) K can obtain different output voltage out.The operation principle of this power circuit: form clearance-type oscillator by triode V1, transformer T, electric capacity C2, its off time, the height by output voltage controlled.When defeated people's voltage in accesses, triode V1, triode V2, triode V3 conducting, defeated people's voltage in is added on transformer T by triode V1, and the electric current that passes through of its former limit linearly rule increases, and induce on secondary lower just on negative square-wave voltage; This induced voltage makes the further conducting of triode V1 by electric capacity C2, and the electric current on the former limit of transformer T also just increases further, and make transformer T and triode V1 form a hurried snowslide positive feedback between the two, triode V1 enters saturation condition rapidly.In the process, transformer T energy storage and electric capacity C2 start charging.When transformer T primary current reaches certain value, make the electric current on the former limit of transformer T can not continue again to increase because triode VI is saturated, make the induced voltage of secondary start gap changing inversely, the voltage acting in conjunction on this voltage and electric capacity C2 causes triode V1 collector current to decline.The same, a positive feedback avalanche process makes triode V1 end rapidly, and between the off period, diode D1 is started conducting and discharged by inductance L, electric capacity C3 by the energy once stored at pulse transformer between the triode VI conducting period of saturation.The principle of stabilized voltage of this power circuit: the voltage stabilizing process of circuit is realized by the intermittent time of change triode V1.When defeated people's voltage in raises or load current reduces, because the both end voltage U2 of voltage stabilizing didoe D2/ voltage stabilizing didoe D3 is constant, therefore triode V3 collector potential is reduced, the collector current of triode V3, triode V2 reduces, and the deadline of triode V1 increases, the saturation conduction time reduces, so triode V1 ON time shortens, then reduced by transformer T primary current, the energy of storage reduces, the energy of release reduces, and output voltage out is reduced to former specified voltage stabilizing value.In like manner, when input voltage reduces or load current increases, its self-regulating process is contrary with upper.
One group of embodiment is now disclosed: electric capacity C1, electric capacity C2 and electric capacity C3 can adopt 50 μ F, 50 μ F and 100 μ F respectively; Resistance R1, resistance R2 and resistance R3 can adopt 300 ohm, 500 ohm and 1000 ohm respectively; Inductance L 1 can adopt 0.1mH.Voltage stabilizing didoe D2 and voltage stabilizing didoe D3 can adopt puncture voltage to be the voltage stabilizing didoe of 12V and 5V respectively.When input voltage in is+24V, when load current changes within the scope of 0 ~ 1A, voltage stability is not inferior to ± and 1%, the stable output of voltage can be ensured.
In the concrete procedure of adaptation, can select voltage stabilizing didoe D2 and voltage stabilizing didoe D3 by controlling single-pole double-throw switch (SPDT), can select output voltage out.
As mentioned above, the present invention can be realized preferably.
Claims (3)
1. one kind is suitable for the voltage-stabilized power supply circuit of quality control system, it is characterized in that: comprise Filter capacitance device, triode V2 and triode V3, described Filter capacitance device comprises triode V1, in the base stage that the collector electrode of described triode V2 is connected to triode V1 and grounded emitter, the base stage of described triode V2 is connected with the emitter of triode V3 by resistance R2, the collector electrode of described triode V3 is connected with the emitter of triode V1, resistance R3 is connected with between the base stage of described triode V3 and collector electrode, the base stage of described triode V3 respectively by voltage stabilizing didoe D2 and voltage stabilizing didoe D3 and single-pole double-throw switch (SPDT) K two not moved end be connected, the moved end of described single-pole double-throw switch (SPDT) K is connected with voltage output end, the collector electrode of described triode V1 is connected to the negative pole of diode D1, the positive pole of described diode D1 is connected with voltage output end by inductance L 1, the positive pole of described diode D1 is also connected with ground capacity C3, described voltage stabilizing didoe D2 is different with the puncture voltage of voltage stabilizing didoe D3.
2. a kind of voltage-stabilized power supply circuit being suitable for quality control system according to claim 1, it is characterized in that: described formula of having a rest oscillator also comprises transformer T, resistance R1 is connected with between the base stage of described triode V1 and emitter, one end ground connection on the described former limit of transformer T and the other end is connected on the collector electrode of triode V1, described transformer T secondary one end to be connected with the emitter of triode V1 by electric capacity C1 and the other end is connected with the base stage of triode V1 by electric capacity C2.
3. a kind of voltage-stabilized power supply circuit being suitable for quality control system according to claim 2, it is characterized in that: described triode V1 is PNP type triode, described triode V2 and triode V3 is NPN type triode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410679085.0A CN104467083A (en) | 2014-11-24 | 2014-11-24 | Voltage-stabilized power circuit applicable to quality management system |
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| CN201410679085.0A CN104467083A (en) | 2014-11-24 | 2014-11-24 | Voltage-stabilized power circuit applicable to quality management system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109130948A (en) * | 2018-09-12 | 2019-01-04 | 深圳市思达仪表有限公司 | A kind of bis- auxiliary source power supply systems of BMS |
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| CN109130948B (en) * | 2018-09-12 | 2024-03-01 | 深圳市思达仪表有限公司 | BMS double-auxiliary-source power supply system |
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Application publication date: 20150325 |