CN204258358U - A kind of power supply circuits based on quality control system - Google Patents
A kind of power supply circuits based on quality control system Download PDFInfo
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- CN204258358U CN204258358U CN201420710525.XU CN201420710525U CN204258358U CN 204258358 U CN204258358 U CN 204258358U CN 201420710525 U CN201420710525 U CN 201420710525U CN 204258358 U CN204258358 U CN 204258358U
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- triode
- stabilizing didoe
- voltage stabilizing
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Abstract
The utility model discloses a kind of power supply circuits based on quality control system, comprise triode V1 and single-pole double-throw switch (SPDT), the collector electrode of triode V1 is connected with the former limit of transformer, secondary one end of transformer 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, the emitter of triode V1 is connected with voltage stabilizing didoe D3 with voltage stabilizing didoe D2 by resistance R3 simultaneously, voltage stabilizing didoe D2 and voltage stabilizing didoe D3 is connected on the not moved end of single-pole double-throw switch (SPDT), the collector electrode of triode V1 is connected on the negative pole of diode D2, the positive pole of diode D2 is connected with the moved end of single-pole double-throw switch (SPDT) by inductance, the base stage of triode V1 is connected on the collector electrode of triode V2, the base stage of triode V2 is connected with the common port of voltage stabilizing didoe D2 with resistance R3 by resistance R2, its output voltage is adjustable, meet the demand of the different voltage of different chip.
Description
Technical field
The utility model relates to integrated circuit fields, particularly, relates to a kind of power supply circuits based on 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.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of power supply circuits based on quality control system, and its output voltage is adjustable, meets the demand of the different voltage of different chip, the stability of management system of ensuring the quality of products.
The technical scheme in the invention for solving the above technical problem is:
A kind of power supply circuits based on quality control system, comprise triode V1 and voltage-regulation switch, described voltage-regulation switch is single-pole double-throw switch (SPDT) K, the collector electrode of described triode V1 is connected with the former limit of transformer T, secondary one end of described transformer T 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, resistance R1 is connected with between the base stage of described triode V1 and emitter, the emitter of described triode V1 is connected with voltage stabilizing didoe D3 with voltage stabilizing didoe D2 by resistance R3 simultaneously, described voltage stabilizing didoe D2 and voltage stabilizing didoe D3 is connected on the not moved end of single-pole double-throw switch (SPDT) K, the collector electrode of described triode V1 is connected on the negative pole of diode D2, the positive pole of described diode D2 is connected with the moved end of single-pole double-throw switch (SPDT) K by inductance L 1, the base stage of described triode V1 is connected on the collector electrode of triode V2, the grounded emitter of described triode V2 and base stage are connected with the common port of voltage stabilizing didoe D2 with resistance R3 by resistance R2, the positive pole of described diode D1 is connected with ground capacity C3.
As preferably, described voltage stabilizing didoe D2 is different with the breakdown voltage value of voltage stabilizing didoe D3.
As preferably, described triode V1 is PNP type triode, and described triode V2 is NPN type triode.
As preferably, the Standard resistance range of described resistance R2 is 500 ohm-1500 ohm.
To sum up, the beneficial effects of the utility model are:
1, output voltage of the present utility model controls by single-pole double-throw switch (SPDT) K, by the selection of single-pole double-throw switch (SPDT) K to the voltage stabilizing didoe of place in circuit, the voltage that output two kinds is different can be controlled, 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 utility model 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 utility model.
Embodiment
Below in conjunction with embodiment and accompanying drawing, to the detailed description further of the utility model do, but execution mode of the present utility model is not limited thereto.
Embodiment 1:
A kind of power supply circuits based on quality control system as shown in Figure 1, comprise triode V1 and voltage-regulation switch, described voltage-regulation switch is single-pole double-throw switch (SPDT) K, the collector electrode of described triode V1 is connected with the former limit of transformer T, secondary one end of described transformer T 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, resistance R1 is connected with between the base stage of described triode V1 and emitter, the emitter of described triode V1 is connected with voltage stabilizing didoe D3 with voltage stabilizing didoe D2 by resistance R3 simultaneously, described voltage stabilizing didoe D2 and voltage stabilizing didoe D3 is connected on the not moved end of single-pole double-throw switch (SPDT) K, the collector electrode of described triode V1 is connected on the negative pole of diode D2, the positive pole of described diode D2 is connected with the moved end of single-pole double-throw switch (SPDT) K by inductance L 1, the base stage of described triode V1 is connected on the collector electrode of triode V2, the grounded emitter of described triode V2 and base stage are connected with the common port of voltage stabilizing didoe D2 with resistance R3 by resistance R2, the positive pole of described diode D1 is connected with ground capacity C3.One end ground connection other end of transformer T is connected with the collector electrode of triode V1.
Described voltage stabilizing didoe D2 is different with the breakdown voltage value of voltage stabilizing didoe D3.
Described triode V1 is PNP type triode, and described triode V2 is NPN type triode.
The Standard resistance range of described resistance R2 is 500 ohm-1500 ohm.
In the utility model, the emitter of triode V1 and voltage input end, the moved end of single-pole double-throw switch (SPDT) K and voltage output end.
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 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 V2 base potential is reduced, the collector current of 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, 1000 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 defeated place voltage out.
As mentioned above, the utility model can be realized preferably.
Claims (4)
1. the power supply circuits based on quality control system, it is characterized in that: comprise triode V1 and voltage-regulation switch, described voltage-regulation switch is single-pole double-throw switch (SPDT) K, the collector electrode of described triode V1 is connected with the former limit of transformer T, secondary one end of described transformer T 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, resistance R1 is connected with between the base stage of described triode V1 and emitter, the emitter of described triode V1 is connected with voltage stabilizing didoe D3 with voltage stabilizing didoe D2 by resistance R3 simultaneously, described voltage stabilizing didoe D2 and voltage stabilizing didoe D3 is connected on the not moved end of single-pole double-throw switch (SPDT) K, the collector electrode of described triode V1 is connected on the negative pole of diode D2, the positive pole of described diode D2 is connected with the moved end of single-pole double-throw switch (SPDT) K by inductance L 1, the base stage of described triode V1 is connected on the collector electrode of triode V2, the grounded emitter of described triode V2 and base stage are connected with the common port of voltage stabilizing didoe D2 with resistance R3 by resistance R2, the positive pole of described diode D1 is connected with ground capacity C3.
2. a kind of power supply circuits based on quality control system according to claim 1, is characterized in that: described voltage stabilizing didoe D2 is different with the breakdown voltage value of voltage stabilizing didoe D3.
3. a kind of power supply circuits based on quality control system according to claim 1, it is characterized in that: described triode V1 is PNP type triode, described triode V2 is NPN type triode.
4. a kind of power supply circuits based on quality control system according to claim 1, is characterized in that: the Standard resistance range of described resistance R2 is 500 ohm-1500 ohm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420710525.XU CN204258358U (en) | 2014-11-24 | 2014-11-24 | A kind of power supply circuits based on quality control system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420710525.XU CN204258358U (en) | 2014-11-24 | 2014-11-24 | A kind of power supply circuits based on quality control system |
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| CN204258358U true CN204258358U (en) | 2015-04-08 |
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| CN201420710525.XU Expired - Fee Related CN204258358U (en) | 2014-11-24 | 2014-11-24 | A kind of power supply circuits based on quality control system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104467081A (en) * | 2014-11-24 | 2015-03-25 | 成都贝发信息技术有限公司 | Power supply circuit based on quality control system |
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2014
- 2014-11-24 CN CN201420710525.XU patent/CN204258358U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104467081A (en) * | 2014-11-24 | 2015-03-25 | 成都贝发信息技术有限公司 | Power supply circuit based on quality control system |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150408 Termination date: 20161124 |
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| CF01 | Termination of patent right due to non-payment of annual fee |