CN205622610U - Low level control's delay circuit - Google Patents
Low level control's delay circuit Download PDFInfo
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- CN205622610U CN205622610U CN201620396393.7U CN201620396393U CN205622610U CN 205622610 U CN205622610 U CN 205622610U CN 201620396393 U CN201620396393 U CN 201620396393U CN 205622610 U CN205622610 U CN 205622610U
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- triode
- resistance
- diode
- electric capacity
- low level
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- 239000003990 capacitor Substances 0.000 description 2
- 230000001934 delay Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
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Abstract
The utility model discloses a low level control's delay circuit, including resistance R1, triode VT1, diode D1, electric capacity C1, triode VT2 and electric capacity C2, the resistance R1 VCC that connects respectively, diode D1 negative pole, resistance R3, triode VT2 collecting electrode and triode VT3 collecting electrode, triode VT1 collecting electrode is connected to the resistance R1 other end, diode D1 positive pole and ground resistance R4 are connected respectively to triode VT1 base, diode D2 negative pole and resistance R2 are connected respectively to triode VT1 projecting pole, triode VT4 collecting electrode is connected respectively to the resistance R2 other end, electric capacity C1 and triode VT2 base, triode VT4 base is the connecting resistance R3 other end respectively, electric capacity C2 and resistance R5. The utility model discloses low level control's delay circuit adopts the low level to carry out delay control to the circuit, adopts the design of a plurality of triodes cooperation electric capacity, and circuit structure is simple, and is with low costs, small, is applicable to the occasion to the delay time no requirement (NR), and application scope is wide.
Description
Technical field
The utility model relates to a kind of delay circuit, the delay circuit of specifically a kind of low level control.
Background technology
In the industrial production, the cooperation between equipment is extremely important, equipment room by delay start with the feelings of the work that cooperates
Condition is very universal, and current delay control circuit is widely used in various fields, it is achieved the mode of delays time to control be also various respectively
Sample, wherein, a lot of delay control circuit implementations are complicated, and required electronic component is many and expensive, and the research of current industry
Sight is all placed on prolongation delay time, and the length all with delay time for the quality of present delay control circuit is weighed, but
It is that, in a lot of places, delay time many a few minutes and the effect of a few minutes in evening are simultaneously little, and they have only to the wink at power network fluctuation
Between delay protection carried out to load just meet demand, at present, this kind of delay control circuit is less.
Utility model content
The purpose of this utility model is to provide the delay circuit of a kind of low level control, to solve to propose in above-mentioned background technology
Problem.
For achieving the above object, the following technical scheme of the utility model offer:
A kind of delay circuit of low level control, including resistance R1, triode VT1, diode D1, electric capacity C1, three poles
Pipe VT2 and electric capacity C2, described resistance R1 connect power supply VCC, diode D1 negative pole, resistance R3, triode VT2 respectively
Colelctor electrode and triode VT3 colelctor electrode, resistance R1 other end connecting triode VT1 colelctor electrode, triode VT1 base stage is divided
Not Lian Jie diode D1 positive pole and earth resistance R4, triode VT1 emitter stage connects diode D2 negative pole and resistance respectively
R2, the resistance R2 other end connecting triode VT4 colelctor electrode, electric capacity C1 and triode VT2 base stage, triode VT4 respectively
Base stage connects the resistance R3 other end, electric capacity C2 and resistance R5, electric capacity C2 other end connection control signal Vi, resistance respectively
The R5 other end connecting triode VT4 emitter stage, the electric capacity C1 other end and resistance R6 respectively, the resistance R6 other end connects respectively
Connecing output end vo, diode D2 positive pole and triode VT3 emitter stage, triode VT3 base stage connecting triode VT2 launches
Pole.
As further program of the utility model: described diode D1 and diode D2 is Zener diode.
As the utility model further scheme: described power supply VCC voltage is 5V.
Compared with prior art, the beneficial effects of the utility model are: the delay circuit of the utility model low level control uses
Low level carries out delays time to control to circuit, uses multiple triode to coordinate capacitor design, and circuit structure is simple, low cost, body
Long-pending little, it is adaptable to the occasion to delay time no requirement (NR), applied widely.
Brief description
Fig. 1 is the circuit diagram of the delay circuit of low level control.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out clearly
It Chu, is fully described by, 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 delay circuit of a kind of low level control, including resistance R1, three poles
Pipe VT1, diode D1, electric capacity C1, triode VT2 and electric capacity C2, described resistance R1 connect respectively power supply VCC, two
Pole pipe D1 negative pole, resistance R3, triode VT2 colelctor electrode and triode VT3 colelctor electrode, the resistance R1 other end connects three poles
Pipe VT1 colelctor electrode, triode VT1 base stage connects diode D1 positive pole and earth resistance R4 respectively, and triode VT1 launches
Pole connects diode D2 negative pole and resistance R2 respectively, the resistance R2 other end connecting triode VT4 colelctor electrode, electric capacity respectively
C1 and triode VT2 base stage, triode VT4 base stage connects the resistance R3 other end, electric capacity C2 and resistance R5 respectively, electricity
Hold C2 other end connection control signal Vi, the resistance R5 other end respectively connecting triode VT4 emitter stage, electric capacity C1 another
End and resistance R6, the resistance R6 other end connects output end vo, diode D2 positive pole and triode VT3 emitter stage respectively,
Triode VT3 base stage connecting triode VT2 emitter stage；Described diode D1 and diode D2 is Zener diode；Institute
Stating power supply VCC voltage is 5V.
Operation principle of the present utility model is: refer to Fig. 1, and VT4 is switching tube, and C1, R2 are respectively timing capacitor and electricity
Resistance, VT1 forms cobasis constant-current source, VT2 and VT3 forms multiple tube follower, and voltage exports from output end vo.Work as input
When Vi is low level, VT1 ends, and electric capacity C1 charges, and VT2 base potential rises, due to emitter follower (VT2, VT3) effect,
Make VT1 emitter stage current potential also increase, owing to the potential difference of VT2 base stage, 2, VT1 emitter stage is constant, flow through the electric current of R2
Also constant, make C1 with constant-current charge, after the low level inputting Vi terminates, VT4 is saturated, and C1 promptly discharges, output
End Vo continues to put out a terminal voltage, until C1 electric discharge completes.
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, Er Qie
In the case of without departing substantially from spirit or essential attributes of the present utility model, the utility model can be realized in other specific forms.
Therefore, no matter from the point of view of which point, all should regard embodiment 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 be considered as limiting
Involved claim.
Although moreover, it will be appreciated that this specification is been described by according to embodiment, but not each embodiment only comprises
One independent technical scheme, this narrating mode of specification is only for clarity sake, and those skilled in the art should be by
Specification is as an entirety, and the technical scheme in each embodiment also can be through appropriately combined, and forming those skilled in the art can
With other embodiments understanding.
Claims (3)
1. a delay circuit for low level control, including resistance R1, triode VT1, diode D1, electric capacity C1, three
Pole pipe VT2 and electric capacity C2, it is characterised in that described resistance R1 connects power supply VCC, diode D1 negative pole, resistance respectively
R3, triode VT2 colelctor electrode and triode VT3 colelctor electrode, resistance R1 other end connecting triode VT1 colelctor electrode, three
Pole pipe VT1 base stage connects diode D1 positive pole and earth resistance R4 respectively, and triode VT1 emitter stage connects diode respectively
D2 negative pole and resistance R2, the resistance R2 other end connecting triode VT4 colelctor electrode, electric capacity C1 and triode VT2 base respectively
Pole, triode VT4 base stage connects the resistance R3 other end, electric capacity C2 and resistance R5 respectively, and the electric capacity C2 other end connects control
Signal Vi processed, the resistance R5 other end connecting triode VT4 emitter stage, the electric capacity C1 other end and resistance R6, resistance respectively
The R6 other end connects output end vo, diode D2 positive pole and triode VT3 emitter stage respectively, and triode VT3 base stage connects
Triode VT2 emitter stage.
2. the delay circuit of low level control according to claim 1, it is characterised in that described diode D1 and two
Pole pipe D2 is Zener diode.
3. the delay circuit of low level control according to claim 1, it is characterised in that described power supply VCC voltage is
5V。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620396393.7U CN205622610U (en) | 2016-05-04 | 2016-05-04 | Low level control's delay circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620396393.7U CN205622610U (en) | 2016-05-04 | 2016-05-04 | Low level control's delay circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205622610U true CN205622610U (en) | 2016-10-05 |
Family
ID=57025842
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620396393.7U Expired - Fee Related CN205622610U (en) | 2016-05-04 | 2016-05-04 | Low level control's delay circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205622610U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106411128A (en) * | 2016-11-24 | 2017-02-15 | 郑州艾莫弗信息技术有限公司 | Switch power supply control circuit |
-
2016
- 2016-05-04 CN CN201620396393.7U patent/CN205622610U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106411128A (en) * | 2016-11-24 | 2017-02-15 | 郑州艾莫弗信息技术有限公司 | Switch power supply control circuit |
| CN106411128B (en) * | 2016-11-24 | 2018-08-03 | 乌鲁木齐市英格科技开发有限公司 | A kind of switching power source control circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180606 Address after: 510700 No. 18, 201 Sha Road, Whampoa District, Guangzhou, Guangdong. Patentee after: Guangzhou Hengyun Electronics Technology Co., Ltd. Address before: 311826 No. 66, Nanbin Road, Ruan village, Ruan Town, Zhuji City, Shaoxing, Zhejiang Patentee before: Huang Hai |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161005 Termination date: 20190504 |