CN205645686U - Relay delay driven circuit - Google Patents
Relay delay driven circuit Download PDFInfo
- Publication number
- CN205645686U CN205645686U CN201620355577.9U CN201620355577U CN205645686U CN 205645686 U CN205645686 U CN 205645686U CN 201620355577 U CN201620355577 U CN 201620355577U CN 205645686 U CN205645686 U CN 205645686U
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- China
- Prior art keywords
- resistance
- electric capacity
- relay
- diode
- triode
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a relay delay driven circuit, including relay J, diode D1, electric capacity C1, resistance R1, triode VT1 and resistance R2, relay J coil is connected respectively to diode D1 negative pole, electric capacity C1, electric capacity C2, resistance R2 and power VCC, the relay J coil other end and triode VT1 collecting electrode are connected respectively to diode D1 positive pole, the electric capacity C1 other end is connected respectively to triode VT1 base, the resistance R2 other end, the resistance R2 other end and resistance R1, electric capacity C3 and resistance R3 and ground connection are connected respectively to the resistance R1 other end, the electric capacity C3 other end is the connecting resistance R3 other end and triode VT1 projecting pole respectively. The utility model discloses relay delay driven circuit adopts the control of electric capacity cooperation triode, and circuit structure is very simple, and is with low costs, small, does not adopt chip element control moreover, and the interference killing feature is strong.
Description
Technical field
This utility model relates to a kind of drive circuit, specifically a kind of relay delay driving circuit.
Background technology
Not only make at present in the industrial production or in daily life, a lot of electrical equipments all have employed time delay control
System, delays time to control makes the life of people obtain the biggest facility, and such as, lavatory exhaust apparatus can arrange time-delay closing,
After allowing people make to be finished lavatory, exhaust apparatus can delayed start-up one end time, it is ensured that the abnormal flavour of the inside is arranged completely
Go out；Delay control circuit is widely used in various fields at present, it is achieved the mode of delays time to control is also various, wherein,
A lot of delay control circuits all use chip NE555 to control, and capacity of resisting disturbance is weak, and circuit structure is more complicated.
Utility model content
The purpose of this utility model is to provide a kind of relay delay driving circuit, to solve proposition in above-mentioned background technology
Problem.
For achieving the above object, the following technical scheme of this utility model offer:
A kind of relay delay driving circuit, including relay J, diode D1, electric capacity C1, resistance R1, audion VT1
With resistance R2, described diode D1 negative pole connects relay J coil, electric capacity C1, electric capacity C2, resistance R2 and electricity respectively
Source VCC, diode D1 positive pole connects the relay J coil other end and audion VT1 colelctor electrode, audion VT1 base respectively
Pole connects the electric capacity C1 other end, the resistance R2 other end, the resistance R2 other end and resistance R1 respectively, and the resistance R1 other end divides
Not Lian Jie electric capacity C3 and resistance R3 ground connection, the electric capacity C3 other end connects the resistance R3 other end respectively and audion VT1 sends out
Emitter-base bandgap grading.
As this utility model further scheme: described power supply VCC voltage is 12V.
Compared with prior art, the beneficial effects of the utility model are: this utility model relay delay driving circuit uses electricity
Holding and coordinate audion to control, circuit structure is very simple, low cost, and volume is little, and does not use chip component control,
Capacity of resisting disturbance is strong.
Accompanying drawing explanation
Fig. 1 is the circuit diagram of relay delay driving circuit.
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried out clearly
Chu, it is fully described by, it is clear that described embodiment is only a part of embodiment of this utility model rather than whole
Embodiment.Based on the embodiment in this utility model, those of ordinary skill in the art are not under making creative work premise
The every other embodiment obtained, broadly falls into the scope of this utility model protection.
Referring to Fig. 1, in this utility model embodiment, a kind of relay delay driving circuit, including relay J, two poles
Pipe D1, electric capacity C1, resistance R1, audion VT1 and resistance R2, described diode D1 negative pole connects relay J respectively
Coil, electric capacity C1, electric capacity C2, resistance R2 and power supply VCC, diode D1 positive pole connect respectively relay J coil another
End and audion VT1 colelctor electrode, audion VT1 base stage connects the electric capacity C1 other end, the resistance R2 other end, resistance respectively
The R2 other end and resistance R1, the resistance R1 other end connects electric capacity C3 and resistance R3 ground connection, the electric capacity C3 other end respectively
Connect the resistance R3 other end and audion VT1 emitter stage respectively；Described power supply VCC voltage is 12V.
Operation principle of the present utility model is: refers to Fig. 1, power supply VCC and charges electric capacity C1, C2 through R1, starts to fill
The R1 both end voltage fall conducting voltage more than control pipe VT1, then VT1 saturation conduction during electricity, relay J obtains electric work,
After couple of seconds, electric capacity C1, C2 charging is the most complete, when the pressure drop of R1 two ends is less than the conducting voltage of VT1, VT1 by
Conducting transfers cut-off → relay J dead electricity to and quits work, whole circuit end-of-job and no longer power consumption；The effect of electric capacity C3
It is the conducting speed utilizing its charging current to improve audion VT1, thus improves the response speed of circuit.
It is obvious to a person skilled in the art that this utility model is not limited to the details of above-mentioned one exemplary embodiment, Er Qie
In the case of spirit or essential attributes of the present utility model, it is possible to realize this utility model 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 by the containing of equivalency in claim that fall
All changes in justice and scope are included in this utility model.Should not be considered as any reference in claim limiting
Involved claim.
Although moreover, it will be appreciated that this specification is been described by according to embodiment, but the most each embodiment only comprises
One independent technical scheme, this narrating mode of description is only the most for clarity sake, and those skilled in the art should be by
Description is as an entirety, and the technical scheme in each embodiment can also be through appropriately combined, and forming those skilled in the art can
With other embodiments understood.
Claims (2)
1. a relay delay driving circuit, including relay J, diode D1, electric capacity C1, resistance R1, audion
VT1 and resistance R2, it is characterised in that described diode D1 negative pole connects relay J coil, electric capacity C1, electric capacity respectively
C2, resistance R2 and power supply VCC, diode D1 positive pole connects the relay J coil other end and audion VT1 current collection respectively
Pole, audion VT1 base stage connects the electric capacity C1 other end, the resistance R2 other end, the resistance R2 other end and resistance R1 respectively,
The resistance R1 other end connects electric capacity C3 and resistance R3 ground connection respectively, the electric capacity C3 other end connect respectively resistance R3 another
End and audion VT1 emitter stage.
Relay delay driving circuit the most according to claim 1, it is characterised in that described power supply VCC voltage is 12V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620355577.9U CN205645686U (en) | 2016-04-21 | 2016-04-21 | Relay delay driven circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620355577.9U CN205645686U (en) | 2016-04-21 | 2016-04-21 | Relay delay driven circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205645686U true CN205645686U (en) | 2016-10-12 |
Family
ID=57062362
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620355577.9U Expired - Fee Related CN205645686U (en) | 2016-04-21 | 2016-04-21 | Relay delay driven circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205645686U (en) |
-
2016
- 2016-04-21 CN CN201620355577.9U patent/CN205645686U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20161012 Termination date: 20190421 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |