CN206074678U - A kind of line voltage exception indicating circuit - Google Patents
A kind of line voltage exception indicating circuit Download PDFInfo
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- CN206074678U CN206074678U CN201621120337.7U CN201621120337U CN206074678U CN 206074678 U CN206074678 U CN 206074678U CN 201621120337 U CN201621120337 U CN 201621120337U CN 206074678 U CN206074678 U CN 206074678U
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Abstract
The utility model discloses a kind of line voltage exception indicating circuit, including transformator W, rectifier bridge T, resistance R1 and diode D1, the two ends of the winding N1 of the transformator W connect the two ends of 220V alternating currents respectively, the two ends of the winding N2 of transformator W connect the port 1 of rectifier bridge T and the port 3 of rectifier bridge T respectively, and the port 2 of rectifier bridge T connects the pin 4 of resistance R1, resistance R2, resistance R3, resistance R4, resistance R5, electric capacity C1, electric capacity C2 and chip IC 1.This utility model line voltage exception indicating circuit simple structure, components and parts are few, under-voltage detection and overvoltage detection are carried out respectively to civil power using two groups of voltage detecting circuits, detection case is judged by audion and double D trigger chip, and then the over-pressed function with undervoltage warning is realized, therefore there is easy to use, vdiverse in function and stable performance.
Description
Technical field
This utility model is related to a kind of indicating circuit, specifically a kind of line voltage exception indicating circuit.
Background technology
With the popularization of present electrical equipment, revolutionary change is brought to industrial and agricultural production, Defence business, science and technology,
The development of society is accelerated, people have stepped into Electrification Age, have also been greatly improved the quality of life of people,
These electric equipments are be unable to do without increasingly.With the development of science and technology, the precision of electric equipment also gradually steps up, there occurs to overturn the heavens and cover
The change on ground, but the not interfered by outside of these electric equipments how is protected, into the master of current development in science and technology concern
Want problem.The electrical network of China is popularized at present, and huge network system gives us many convenience.But with access electrical network
User increase, and the variation of consumer electronics also result in the unstable of line voltage, voltage fluctuated, also into
The principal element of electric equipment is damaged, equipment is chronically at electric voltage exception situation and can cause its service life reduction.
Utility model content
The purpose of this utility model is to provide a kind of line voltage exception indicating circuit, to solve in above-mentioned background technology
The problem of proposition.
For achieving the above object, this utility model provides following technical scheme：
A kind of line voltage exception indicating circuit, including transformator W, rectifier bridge T, resistance R1 and diode D1, the change
The two ends of the winding N1 of depressor W connect the two ends of 220V alternating currents respectively, and the two ends of the winding N2 of transformator W connect rectification respectively
The port 1 of bridge T and the port 3 of rectifier bridge T, the connection of the port 2 resistance R1 of rectifier bridge T, resistance R2, resistance R3, resistance R4, resistance
The pin 4 of R5, electric capacity C1, electric capacity C2 and chip IC 1, the other end of resistance R1 connect fixing end, a current potential of potentiometer RP2
The negative electrode of the sliding end and diode D1 of device RP2, the emitter stage of the other end connecting triode V1 of electric capacity C1, audion V2 are sent out
Emitter-base bandgap grading, the emitter stage of audion V3, another fixing end of potentiometer RP1, another fixing end of potentiometer RP1, resistance R7,
The negative electrode of the negative electrode and diode D6 of diode D5, the colelctor electrode and diode D3 of the other end connecting triode V2 of resistance R3
Anode, the negative electrode of diode D3 connect the pin 3 of chip IC 1, the base stage of the anode connecting triode V1 of diode D1, resistance R5
Other end connecting triode V3 colelctor electrode and the anode of diode D4, the negative electrode of diode D4 connects the pin of chip IC 1
The base stage of the anode connecting triode V3 of 1, diode D2, the connection resistance R9 of pin 2 of chip IC 1, the other end of resistance R9 connect
The anode of diode D6 is connect, the connection resistance R8 of pin 5 of chip IC 1, the other end of resistance R8 connect the anode of diode D5, core
Model CD4013 of piece IC1.
As preferred version of the present utility model：The diode D5 and diode D6 are light emitting diode.
Compared with prior art, the beneficial effects of the utility model are：This utility model line voltage exception indicating circuit
Simple structure, components and parts are few, carry out under-voltage detection and overvoltage detection respectively to civil power using two groups of voltage detecting circuits, by three
Pole pipe and double D trigger chip judged to detection case, and then realizes the function of overvoltage and undervoltage warning, therefore had and made
With convenient, vdiverse in function and stable performance advantage.
Description of the drawings
Fig. 1 is the circuit diagram of line voltage exception indicating circuit.
Specific embodiment
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only this utility model a part of embodiment, rather than whole
Embodiment.Based on the embodiment in this utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment for being obtained, belongs to the scope of this utility model protection.
Refer to Fig. 1, a kind of line voltage exception indicating circuit, including transformator W, rectifier bridge T, resistance R1 and diode
The two ends of D1, the winding N1 of the transformator W connect the two ends of 220V alternating currents, the two ends point of the winding N2 of transformator W respectively
Not Lian Jie rectifier bridge T port 1 and the port 3 of rectifier bridge T, rectifier bridge T port 2 connection resistance R1, resistance R2, resistance R3,
The pin 4 of resistance R4, resistance R5, electric capacity C1, electric capacity C2 and chip IC 1, one of the other end connection potentiometer RP2 of resistance R1
The negative electrode of fixing end, the sliding end of potentiometer RP2 and diode D1, the emitter stage of the other end connecting triode V1 of electric capacity C1,
The emitter stage of audion V2, the emitter stage of audion V3, another fixing end of potentiometer RP1, potentiometer RP1 another is solid
The negative electrode of fixed end, resistance R7, the negative electrode of diode D5 and diode D6, the colelctor electrode of the other end connecting triode V2 of resistance R3
With the anode of diode D3, the pin 3 of the negative electrode connection chip IC 1 of diode D3, the anode connecting triode V1 of diode D1
Base stage, the colelctor electrode and the anode of diode D4 of the other end connecting triode V3 of resistance R5, diode D4 negative electrode connection
The pin 1 of chip IC 1, the base stage of the anode connecting triode V3 of diode D2, the connection resistance R9 of pin 2 of chip IC 1, resistance
The other end of R9 connects the anode of diode D6, and the connection resistance R8 of pin 5 of chip IC 1, the other end of resistance R8 connect two poles
The anode of pipe D5, model CD4013 of chip IC 1.
Diode D5 and diode D6 are light emitting diode.
Operation principle of the present utility model is：220V line voltages enter back into rectifier bridge after transformator W reduction voltage circuits
Rectification is carried out in T, the DC voltage exported from the port 2 of rectifier bridge T is powered to circuit after electric capacity C1 filtering, first, surely
Pressure diode D1, resistance R1, audion V1, audion V2 and potentiometer RP1 composition undervoltage detection circuits, resistance R4, potentiometer
RP1, Zener diode D2 and audion V3 composition over-voltage detection circuits, under normal circumstances, 1 foot and the equal oncontacting of 3 feet of chip IC 1
Signal, its 5 foot of outfan is high level, and 2 feet are low level, and light emitting diode D5 is lighted, when between divider resistance R1 and R6
Sampled voltage when being less than under-voltage marginal value, diode D1 cut-offs, without trigger current, V2 output high level Jing D3 are arrived audion V1
3 feet of IC1；When the sampled voltage between divider resistance R1 and R6 is higher than under-voltage marginal value, D1 breakdown triggerings V1 and V2 so that
V2 is changed into low level from high level, and the resistance for adjusting RP2 can change sampled voltage；Reason below is the same, divider resistance R4
It is the sampled voltage of adjustment 3.9V with RP1 so that V3 exports a signal to 1 foot of IC1, so as to realize the mesh of overvoltage detection
, there is one to receive signal in 1 foot or 3 feet of chip IC 1, then its 2 foot exports high level, and light emitting diode D6 is lighted, and two
Pole pipe D5 is extinguished.
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, and
And in the case of without departing substantially from spirit or essential attributes of the present utility model, can realize that this practicality is new in other specific forms
Type.Therefore, no matter from the point of view of which point, embodiment all should be regarded as exemplary, and is nonrestrictive, this practicality is new
The scope of type is by claims rather than described above is limited, it is intended that the equivalency fallen in claim is contained
All changes in justice and scope are included in this utility model.Any reference in claim should not be considered as restriction
Involved claim.
Moreover, it will be appreciated that although this specification is been described by according to embodiment, not each embodiment is only wrapped
Containing an independent technical scheme, this narrating mode of description is only that those skilled in the art should for clarity
Using description as an entirety, the technical scheme in each embodiment can also Jing it is appropriately combined, form those skilled in the art
Understandable other embodiment.
Claims (2)
1. a kind of line voltage exception indicating circuit, including transformator W, rectifier bridge T, resistance R1 and diode D1, its feature exist
In the two ends of the winding N1 of the transformator W connect the two ends of 220V alternating currents, the two ends point of the winding N2 of transformator W respectively
Not Lian Jie rectifier bridge T port 1 and the port 3 of rectifier bridge T, rectifier bridge T port 2 connection resistance R1, resistance R2, resistance R3,
The pin 4 of resistance R4, resistance R5, electric capacity C1, electric capacity C2 and chip IC 1, one of the other end connection potentiometer RP2 of resistance R1
The negative electrode of fixing end, the sliding end of potentiometer RP2 and diode D1, the emitter stage of the other end connecting triode V1 of electric capacity C1,
The emitter stage of audion V2, the emitter stage of audion V3, another fixing end of potentiometer RP1, potentiometer RP1 another is solid
The negative electrode of fixed end, resistance R7, the negative electrode of diode D5 and diode D6, the colelctor electrode of the other end connecting triode V2 of resistance R3
With the anode of diode D3, the pin 3 of the negative electrode connection chip IC 1 of diode D3, the anode connecting triode V1 of diode D1
Base stage, the colelctor electrode and the anode of diode D4 of the other end connecting triode V3 of resistance R5, diode D4 negative electrode connection
The pin 1 of chip IC 1, the base stage of the anode connecting triode V3 of diode D2, the connection resistance R9 of pin 2 of chip IC 1, resistance
The other end of R9 connects the anode of diode D6, and the connection resistance R8 of pin 5 of chip IC 1, the other end of resistance R8 connect two poles
The anode of pipe D5, model CD4013 of chip IC 1.
2. a kind of line voltage exception indicating circuit according to claim 1, it is characterised in that the diode D5 and two
Pole pipe D6 is light emitting diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621120337.7U CN206074678U (en) | 2016-10-14 | 2016-10-14 | A kind of line voltage exception indicating circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621120337.7U CN206074678U (en) | 2016-10-14 | 2016-10-14 | A kind of line voltage exception indicating circuit |
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| Publication Number | Publication Date |
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| CN206074678U true CN206074678U (en) | 2017-04-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201621120337.7U Active CN206074678U (en) | 2016-10-14 | 2016-10-14 | A kind of line voltage exception indicating circuit |
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| CN (1) | CN206074678U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109541334A (en) * | 2017-09-22 | 2019-03-29 | 博西华电器（江苏）有限公司 | Frequency converter test method and test device |
| CN111641257A (en) * | 2020-04-26 | 2020-09-08 | 武汉船用机械有限责任公司 | Uninterruptible power supply |
-
2016
- 2016-10-14 CN CN201621120337.7U patent/CN206074678U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109541334A (en) * | 2017-09-22 | 2019-03-29 | 博西华电器（江苏）有限公司 | Frequency converter test method and test device |
| CN109541334B (en) * | 2017-09-22 | 2022-02-11 | 博西华电器（江苏）有限公司 | Frequency converter testing method and testing device |
| CN111641257A (en) * | 2020-04-26 | 2020-09-08 | 武汉船用机械有限责任公司 | Uninterruptible power supply |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: Room 901-2, No. 20, Shijingshan Road, Shijingshan District, Beijing 100040 Patentee after: China Railway Construction Group electromechanical installation Co.,Ltd. Address before: A1912, China Railway Chuangye building, No. 28, Apple Garden Road, Shijingshan District, Beijing 100043 Patentee before: CHINA RAILWAY CONSTRUCTION GROUP EQUIPMENT CO.,LTD. |