CN207612195U - A kind of jamproof microcontroller component - Google Patents
A kind of jamproof microcontroller component Download PDFInfo
- Publication number
- CN207612195U CN207612195U CN201721406779.2U CN201721406779U CN207612195U CN 207612195 U CN207612195 U CN 207612195U CN 201721406779 U CN201721406779 U CN 201721406779U CN 207612195 U CN207612195 U CN 207612195U
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- microcontroller
- jamproof
- transformer
- power supply
- layer
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Abstract
The utility model is related to a kind of jamproof microcontroller components, including microcontroller, supply unit, transformer, filter and line layer, 220V AC powers are changed into DC power supply by the supply unit, filter, transformer and rectifier, primary coil and one layer of shielding line layer of secondary coil outer wrapping of the transformer are disposed between AC power and DC power supply；It is disposed with coupler and relay in the microcontroller and external device (ED) transmission line, the microcontroller is provided with the first signal line group and second signal line group, more piece-root grafting ground wires are provided with around every signal line group；Solve be exist in the prior art microcontroller power supply system be vulnerable to the radiation such as power grid, thunder and lightning, electromagnetic wave high-frequency signal interference, and technology is interfered to SCM system and power consumption consumes excessive technological deficiency, jamproof technology is taken in the power supply and transmission line process of microcontroller, with excellent interference free performance and low-power consumption, can be widely used in production and living.
Description
Technical field
The utility model is related to microcontroller fields, and in particular to a kind of jamproof microcontroller component.
Background technology
With the development of microelectric technique, microcontroller is set with its higher letter valence ratio in Industry Control, intelligence instrument, communication
It is standby that fields is waited to be widely used.Power supply system whether stablize be related to microcontroller can reliably working because single
The power supply of piece machine generally uses DC voltage, and DC voltage is obtained after the transformation of alternating voltage, rectification, filtering, voltage stabilizing
It arrives.In the process, the high-frequency signal of the radiation such as power grid, thunder and lightning, electromagnetic wave will be coupled in circuit, to SCM system
It interferes.For example, the connection moment of the cut-off conducting moment of thyristor, high power switch, it all can be to the power supply system of microcontroller
System generates larger interference, leads to such as over-pressed, under-voltage, surge, ringing pulse, spike etc..
CN202057994U discloses a kind of singlechip anti-interference circuit, it include threshold current resistance R2,7 resistance,
Photoelectric tube, two triodes, regulator block and capacitance；The one end threshold current resistance R2 is separately connected cathode and the voltage stabilizing of photoelectric tube
The voltage input end of block, and the collector of triode T2, resistance R7 mono- are separately connected by resistance R5, resistance R6, resistance R8
It holds, the collector of triode T3；The emitter of photoelectric tube is separately connected the base stage of triode T2, the one end resistance R4 by resistance R3
With the one end resistance R9, the anode and collector of photoelectric tube, the emitter of triode T3, the emitter of triode T2 and resistance R4
The other end is grounded respectively；Collector and resistance R7 one end of the capacitance connection in triode T2, resistance R9 other end connecting triodes
The collector of T3 and the voltage output control terminal of regulator block.The circuit has the advantage of certain anti-strong electromagnetic, but single
Piece machine power consumption in the operational process that works is very big, selects component that cannot excessively be effectively ensured and plays jamproof ability.
Utility model content
The power supply system that microcontroller exists in the prior art is vulnerable to the high frequency letter of the radiation such as power grid, thunder and lightning, electromagnetic wave
Number interference, and technology is interfered to SCM system and power consumption consumes excessive technological deficiency.The utility model provides
A kind of jamproof microcontroller component, takes jamproof technology in the power supply and transmission line process of microcontroller, has
The characteristics of excellent interference free performance and low-power consumption.
In order to solve the above technical problems, the technical solution used is as follows：
A kind of jamproof microcontroller component, including microcontroller, supply unit, transformer, filter and line layer, institute
It states supply unit and 220V AC powers is changed into DC power supply, filtering is disposed between AC power and DC power supply
Device, transformer and rectifier, primary coil and one layer of shielding line layer of secondary coil outer wrapping of the transformer；The monolithic
Be disposed with coupler and relay in machine and external device (ED) transmission line, the microcontroller be provided with the first signal line group and
Second signal line group is provided with more piece-root grafting ground wires around every signal line group.
As a further improvement, the filter is low-pass filter.
As a further improvement, the coupler is semiconductor low pass coupler.
As a further improvement, the transmission line is connected and composed by optical fiber.
As a further improvement, one diode of intervention in parallel on the relay.
As a further improvement, the line layer includes first line layer and the second line layer.
As a further improvement, first signal line group and second signal line group access first line layer.
As a further improvement, the ground wire accesses the second line layer.
The beneficial effects of the utility model：
Effect one exists in the utility model between the primary coil and secondary coil of the transformer of power supply and is provided with electricity
Hold, the high-frequency signal of microcontroller output is more, so being easy to happen capacitance short-circuit, high-frequency interferencing signal is being coupled to secondary wire
When circle, noise can not be completely eliminated.So shielded layer is increased separately on the primary coil and secondary coil of transformer, first
It is further added by shielded layer between grade and secondary windings, electromagnetic radiation and signal interference can be effectively prevent；
Effect two, the filter of the utility model use low-pass filter, low-pass filter directly with 220V AC powers
It is connected, the electric fundamental wave of ordinary 50HZ can be allowed to pass through, filter off higher hamonic wave, power supply wave shape can be improved, reduces power supply letter
Number interference；
Effect three, the utility model are provided with the first signal line group and second signal line group, every signal wire in line layer
More piece-root grafting ground wires are provided with around group, because transmission rate can be relatively high when microcontroller works, corresponding frequency is also higher,
And high-frequency can generate the transmission of other electronic modules interference, more piece-root grafting ground wires, which are arranged, can effectively prevent signal interference, really
Protect the normal operation of microcontroller；
Effect four, the utility model transmission line select optical fiber be transmitted, optical fiber loss it is extremely low and
Dielectric strength is high, can not be selected optical fiber transmission according to transmission range by any type of interference in the transmission, greatly reduced
Loss of the single-chip microcomputer signal in transmission process, greatly reduce power consumption；
Effect five, the utility model one diode of intervention in parallel, diode on relay can be exempted from protective relay
It is damaged, meets the power requirement of circuit.
Description of the drawings
The utility model is further illustrated with reference to the accompanying drawings and examples.
Fig. 1 is the flow chart of microcontroller power supply conversion；
Fig. 2 is microcontroller power supply work flow diagram.
Specific implementation mode
It is new below in conjunction with this practicality to keep the purpose, technical scheme and advantage of the utility model embodiment clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that described
Embodiment be only the utility model a part of the embodiment, instead of all the embodiments.Usually here described in attached drawing
It can be arranged and design with a variety of different configurations with the component of the utility model embodiment indicated.Therefore, right below
The detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit claimed the utility model
Range, but it is merely representative of the selected embodiment of the utility model.Based on the embodiments of the present invention, those skilled in the art
The every other embodiment obtained without making creative work belongs to the model of the utility model protection
It encloses.
It is in the description of the present invention, it should be noted that term "center", "upper", "lower", "left", "right", " perpendicular
Directly ", the orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only
The utility model and simplifying describes for ease of description, do not indicate or imply the indicated device or element must have it is specific
Orientation, with specific azimuth configuration and operation, therefore should not be understood as limiting the present invention.
In the description of the present invention, it should also be noted that, unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, can also be electrical connection；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, it can understand above-mentioned art with concrete condition
The concrete meaning of language in the present invention.
Embodiment
The present embodiment provides a kind of jamproof microcontroller components, such as Fig. 1 and Fig. 2, including microcontroller, supply unit, change
220V AC powers are changed into DC power supply, AC power and direct current by depressor, filter and line layer, the supply unit
Filter, transformer and rectifier, the filtered device of 220V power supplys, transformer and rectifier are disposed between power supply
It is changed into DC power supply, then voltage stabilizing after DC voltage modulation, rectification can be directly powered for microcontroller.The transformer
There is distribution electricity between the primary and secondary coil of power transformer in primary coil and one layer of shielding line layer of secondary coil outer wrapping
Hold, for high-frequency signal, capacitance is equivalent to short circuit, therefore, high-frequency interferencing signal can be made to be coupled to secondary coil, although rear
It is filtered, noise can not be completely eliminated in continuous circuit.Therefore, in order to reduce the interference that power transformer is brought, usually
It needs to increase separately shielded layer on the armature winding and secondary windings of transformer, screen is further added by between primary and secondary winding
Layer is covered, and makes its good earth, to prevent electromagnetic induction and radiation from coupling, the noise that external interference introduces is made not exceed limit
Degree, all in the reasonable scope, interference signal will be amplified by logical device, be superimposed upon measuring signal for threshold level and noise margin
On, so that data acquisition errors is increased.It is disposed with coupler and relay in the microcontroller and external device (ED) transmission line.
220V D.C. regulated power supplies are conveyed into bridge-type distillation circuit, the partial pressure current limiter by partial pressure current limiter in the utility model
Metal capacitance for 1000nF and 1 megaohm is connected into circuit, the capacitance have the characteristics that stablize, it is heat safe, take up the ball signal and pass through
The capacitance of 400nF is passed in relay, and what the capacitance of 400nF played is filter action, and current signal is finally passed to microcontroller
In.
The microcontroller is provided with the first signal line group and second signal line group, is provided with around every signal line group more
Piece-root grafting ground wire, the line layer include first line layer and the second line layer, and the first signal line group and second signal line group access
First line layer, ground wire the second line layer of access.Because transmission rate can be relatively high when microcontroller works, corresponding frequency
It is higher, and high-frequency can generate the transmission of other electronic modules interference, more piece-root grafting ground wires, which are arranged, can effectively prevent signal
Interference, it is ensured that the normal operation of microcontroller.
Preferably, the filter is low-pass filter.
Preferably, the coupler is semiconductor low pass coupler.
As a further improvement, the transmission line is connected and composed by optical fiber, optical fiber loss it is extremely low and
Dielectric strength is high, can not be selected optical fiber transmission according to transmission range by any type of interference in the transmission, greatly reduced
Loss of the single-chip microcomputer signal in transmission process, greatly reduce power consumption
As a further improvement, one diode of intervention in parallel on the relay.
Although the illustrative specific implementation mode of the utility model is described above, in order to the art
Technical staff is it will be appreciated that the utility model, but the utility model is not limited only to the range of specific implementation mode, to this technology
For the those of ordinary skill in field, as long as long as the utility model that various change is limited and determined in the attached claims
In spirit and scope, all are created using the utility model of the utility model design in the row of protection.
Claims (8)
1. a kind of jamproof microcontroller component, which is characterized in that including microcontroller, supply unit, transformer, filter and
220V AC powers are changed into DC power supply, are set successively between AC power and DC power supply by line layer, the supply unit
It is equipped with filter, transformer and rectifier, primary coil and one layer of shielding line layer of secondary coil outer wrapping of the transformer；
It is disposed with coupler and relay in the microcontroller and external device (ED) transmission line, the microcontroller is provided with the first letter
Number line group and second signal line group are provided with more piece-root grafting ground wires around every signal line group.
2. jamproof microcontroller component according to claim 1, which is characterized in that the filter is low-pass filtering
Device.
3. jamproof microcontroller component according to claim 1, which is characterized in that the coupler is semiconductor low pass
Coupler.
4. jamproof microcontroller component according to claim 1, which is characterized in that the transmission line is by optical fiber
Connection.
5. jamproof microcontroller component according to claim 1, which is characterized in that intervention one in parallel on the relay
A diode.
6. jamproof microcontroller component according to claim 1, which is characterized in that the line layer includes first line
Layer and the second line layer.
7. jamproof microcontroller component according to claim 6, which is characterized in that first signal line group and second
Signal line group accesses first line layer.
8. jamproof microcontroller component according to claim 6, which is characterized in that the ground wire accesses the second circuit
Layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721406779.2U CN207612195U (en) | 2017-10-27 | 2017-10-27 | A kind of jamproof microcontroller component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721406779.2U CN207612195U (en) | 2017-10-27 | 2017-10-27 | A kind of jamproof microcontroller component |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207612195U true CN207612195U (en) | 2018-07-13 |
Family
ID=62794406
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721406779.2U Expired - Fee Related CN207612195U (en) | 2017-10-27 | 2017-10-27 | A kind of jamproof microcontroller component |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207612195U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111624384A (en) * | 2020-06-05 | 2020-09-04 | 深圳供电局有限公司 | Partial pressure monitoring anti-interference device |
-
2017
- 2017-10-27 CN CN201721406779.2U patent/CN207612195U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111624384A (en) * | 2020-06-05 | 2020-09-04 | 深圳供电局有限公司 | Partial pressure monitoring anti-interference device |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180713 Termination date: 20201027 |
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| CF01 | Termination of patent right due to non-payment of annual fee |