CN204652361U - Digital vibration radiating circuit - Google Patents
Digital vibration radiating circuit Download PDFInfo
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- CN204652361U CN204652361U CN201520341327.5U CN201520341327U CN204652361U CN 204652361 U CN204652361 U CN 204652361U CN 201520341327 U CN201520341327 U CN 201520341327U CN 204652361 U CN204652361 U CN 204652361U
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Abstract
Digital vibration radiating circuit, belong to areas of information technology, it is the oscillating circuit that a kind of digital circuit of enforcement and frequency-selective network are formed, promote the level of confidentiality of the integrated circuit adopting tri-state coding class energetically, the oscillating circuit formed by digital circuit and frequency-selective network, coding integrated circuit, modulated resistance, radio circuit, indicating circuit forms jointly, the output of the oscillating circuit that digital circuit and frequency-selective network are formed is connected the variation code of integrated circuit of encoding, radio circuit is connect after the output connection modulated resistance of coding integrated circuit, indicating circuit is connected between power supply and ground wire.When being energized, the oscillating circuit that digital circuit and frequency-selective network are formed starting of oscillation immediately, the address code of coding integrated circuit is divided in order to fixed code and variation code, so when vibrating, what launch is dicode, reaches the object of variation code, revolutionizes the fixed transmission form of common coding, greatly improve the level of confidentiality of coding, there is the very high anti-ability of cracking.
Description
Technical field
Belong to areas of information technology.
Background technology
Telecontrol engineering is far distance controlled technology widely, coding is the emphasis of remote control, coding level of confidentiality is high, the quality of remote control product is just high, present coding integrated circuit is divided into two classes, a class be level of confidentiality higher take rolling code as the kind of representative, the advantage of this adhesive integrated circuit is that coding is complicated, crack difficulty, but technical difficulty is large.Another kind of is the coding being encoded to three kinds of states, as 2262 with the coding integrated circuit kind of representative, the advantage of this adhesive integrated circuit is without technical difficulty, good production, but shortcoming is that the simple close pole of coding is not high, so can not be widely used in the higher product of requirement, any electronic product, if just possessed the stable of performance, but very bad production, this product is not real quality product, address these problems, need the cooperation of multiple technologies, therefore also need further to study, just can reach and namely produce well, level of confidentiality is high again, the requirement that cost is low again.
Summary of the invention
Main purpose of the present utility model is the oscillating circuit that a kind of digital circuit of enforcement and frequency-selective network are formed, promote the level of confidentiality of the integrated circuit adopting tri-state coding class energetically, there is the highly difficult anti-ability of cracking, but produce easily, make the product of making in market competition, produce the large competitiveness of tool.
The measure that the utility model proposes is:
1, digital vibration radiating circuit is formed by digital circuit and frequency-selective network oscillating circuit, integrated circuit of encoding, modulated resistance, radio circuit, indicating circuit form jointly.
Wherein: the output of the oscillating circuit that digital circuit and frequency-selective network are formed is connected the change code end of integrated circuit of encoding, connect radio circuit after the output connection modulated resistance of coding integrated circuit, indicating circuit is connected between power supply and ground wire.
Indicating circuit is made up of indicator light and protective resistance, and the positive pole of indicator light connects power supply, ground connection after negative pole series connection protective resistance.
The oscillating circuit that digital circuit and frequency-selective network are formed is made up of jointly RC series circuit, resistor-capacitor unit parallel circuits, two-stage amplifying circuit, out-gate circuit.
One end of RC series circuit connects with one end of resistor-capacitor unit parallel circuits, this contact is the output of frequency-selective network, connect the input of two-stage amplifying circuit, the output of another termination two-stage amplifying circuit of RC series circuit, the other end earth connection of resistor-capacitor unit parallel circuits.
Two-stage amplifying circuit is made up of two-stage digital circuit and two sensitivity adjustment resistance, the input of first order digital circuit is the input of two-stage amplifying circuit, the input of second level digital circuit connects the output of first order digital circuit, the output of second level digital circuit is the output of two-stage amplifying circuit, connect the input of out-gate circuit, the indirect sensitivity adjustment resistance of constrained input of two digital circuits.
Namely the output of out-gate circuit is the output of the oscillating circuit that digital circuit and frequency-selective network are formed, and connects the variation code in the address code of coding integrated circuit.
One end of modulated resistance connects the output of coding integrated circuit, and the other end of modulated resistance connects the emitter of transmitting tube in radio circuit.
Radio circuit is made up of copper foil antenna and transmitting tube, frequency modulation inductance, tunable capacitor.
Frequency modulation inductance one end in frequency-modulation element links together to connect with the power end of coding integrated circuit and connect power supply after control switch, one end of the other end connection copper foil antenna of frequency modulation inductance, transmitting tube collector electrode is connected to one end of copper foil antenna, transmitting tube base resistance is connected between the base stage of transmitting tube and collector electrode, the base stage of transmitting tube and an indirect resistance of emitter, the emitter of transmitting tube is also connected to the other end of modulated resistance, one end of another termination tunable capacitor of copper foil antenna, the other end of tunable capacitor connects the collector electrode of transmitting tube, a shunt capacitance that tunable capacitor is in parallel, the copper foil antenna other end has also connect the emitter of an electric capacity to transmitting tube.
2, encode integrated circuit remaining address code and earth-freely also do not connect power supply, be suspension.
3, the electric capacity in RC series circuit is electrodeless electric capacity.
4, the not circuit that the digital circuit in two-stage amplifying circuit and out-gate circuit are all.
The utility model be to the series of studies that common coding integrated circuit is done one of, the reason why becoming series of studies is, this achievement is that the fixed code with tri-state state is upgraded to a kind of highly dense encoding state, because this coding has the change of a variety of form, and each version all has great importance, it is the oscillating circuit having used a kind of digital circuit and frequency-selective network to be formed, promote the integrated circuit adopting tri-state coding class energetically, there is the highly difficult anti-ability of cracking, but produce easily, make the product of making in market competition, produce the large competitiveness of tool.
This measure is explained as follows further:
1, use oscillating circuit to be a kind of well measure as the circuit controlling dicode, be also the main part in this measure, it formed by digital circuit and frequency-selective network, has good performance.
The principle of its vibration is: be connected a sensitivity adjustment resistance with the output of a not circuit of two-stage digital circuit with input, become first order digital circuit, because this measure have employed two-stage, so when the first order be input as positive signal time, the output of the second level is just, when the output of the second level is again input to first order input after frequency-selective network, phase place is identical, to form a kind of strong positive feedback, with the process of capacitor charging in RC series circuit, form the front half period of vibration, become after the electric capacity in RC series circuit is full of electricity every straight state, feedback terminates, capacitor discharge in RC series circuit, become the later half cycle of vibration.Wherein every one-level exports the sensitivity that the sensitivity resistor be connected with input can regulate this grade, makes it to meet the requirements.
In feedback owing to adding frequency-selective network, so frequency is more stable, make measure have better performance, the principle forming frequency-selecting is:
By the series circuit of RC series circuit and resistance and electric capacity, again connect with resistor-capacitor unit parallel circuits and define a kind of frequency-selective network, the principle formed is, when frequency is too high, road is close to by the electric capacity in resistor-capacitor unit parallel circuits, when frequency is too low, by the electric capacity in RC series circuit every directly, so only have a kind of frequency of standard just can pass through.Wherein adjust resistance or the worth of electric capacity in series parallel circuits to work as, just can adjust to required frequency values, reliably very convenient.
2, in measure 1, oscillating circuit defines such annexation with coding integrated circuit, and the address code of coding integrated circuit has been divided into two parts, and a part is the fixed code connected in advance, and another part is the change code be connected with oscillating circuit.When manual operation is launched, oscillating circuit vibrates, and the movable code of coding integrated circuit just becomes 0 and 1 two states, and integrated circuit of at this moment encoding just can only become dicode two kinds output by a kind of single code transmissions from former.By the excitation to modulating tube, reach the object of dicode modulate emission.
3, in measure 1, constrained input due to the two-stage digital circuit in oscillating circuit is indirect sensitivity adjustment resistance, make frequency of oscillation easy to adjust, completely can the such ideal situation of furnishing when producing, within the time required for operation push-button, (as 0.5 second), completes the necessary condition of twice change code.And integrated circuit of encoding only has used one piece, this integrated circuit chip select end ground connection, circuit is reliable.
4, except oscillating circuit and coding peripheral element and except element, constitute the necessary part that radio frequency produces and launches, wherein transmitting tube and modulating tube are shared, simple and convenient.
5, in radio frequency, the utility model one adopts induction-regulated circuit, reduces volume, and two is that the generation of radio frequency adopts a pipe with modulation simultaneously, which increases the reliability of circuit.Above 2 points, decrease overall face, space simultaneously and occupy situation.
6, in radio frequency, the utility model adopts induction-regulated circuit, and its benefit is that induction regulation coil is little, less than fixing crystal oscillator volume, and its antenna adopts Copper Foil in printed panel to apply into, and whole volume is little, can be contained in less launch-box.
7, the effect of indicating circuit is, can conclude whether reflector normally works with checking that whether indicator light is bright, conveniently reliable.
After implementing or under the cooperation of the supporting receiver of designer, the present invention has following outstanding advantage to be:
1, oscillating circuit is formed with coding integrated circuit and coordinates, and revolutionizes the fixed transmission form of common coding, and the regular coding of coding integrated circuit has been become movable oscillation form, reach the object of variation code, therefore, greatly improve the level of confidentiality of coding, there is the very high anti-ability of cracking.
If 2 with the coordinating of rolling code circuit, it decodes difficulty is superpower, because rolling code is the coding of a class character, and in this measure, dicode transmitting is the coding of a class character, two kinds of coded combinations of different nature are larger than a kind of code breaks difficulty of character.
3, the dicode of this measure is launched reliable, when its reason is the change code of transmitting dicode generation, can not be disorderly, and only can repeat, two kinds become code state obviously, and offer a clear explanation, the receiving unit designed with inventor extremely mates.
4, circuit is reliable, and one is that oscillating circuit is reliable, and frequency of oscillation is adjustable, adds frequency-selective network, so frequency is more stable, two is that in radio circuit, easy failed part triode only has one, and three is that after induction regulation coil envelope is filled with, inductance value not easily changes.Four, be that antenna is applied into by printed panel, do not produce change in shape, do not affect radio frequency, have employed the elite of universal design.
5, produce easily, one be need not be valuable equipment and instrument, two is that technology is simple, and three are that circuit is simplified and component requirements used is low, so can produce very high first-pass yield, very applicable minuscule-type-enterprise produces.
Accompanying drawing explanation
Fig. 1 is this measure each several part schematic diagram.
In figure: 1, the oscillating circuit that formed of digital circuit and frequency-selective network; 2, the output of oscillating circuit that formed of digital circuit and frequency-selective network, the change code end of integrated circuit of namely encoding; 3, coding integrated circuit; 4, the fixed code of coding integrated circuit; 5, coding integrated circuit signal output; 6, modulated resistance; 7, radio circuit.
Fig. 2 is the oscillating circuit figure that digital circuit and frequency-selective network are formed.
In figure: 01, RC series circuit; 02, resistor-capacitor unit parallel circuits; 03, first order digital circuit; 04, second level digital circuit; Sensitivity adjustment resistance between the constrained input of 05, first order digital circuit; Sensitivity adjustment resistance between the constrained input of 06, second level digital circuit; 07, out-gate circuit; 2, the output of oscillating circuit that formed of digital circuit and frequency-selective network, the variation code of integrated circuit of namely encoding.
Fig. 3 is radio circuit figure.
In figure: integrated circuit of 3, encoding; 5, coding integrated circuit signal output; 6, modulated resistance; 30, coding IC ground end; 31, coding ic power end; 32, transmitting tube; 33, transmitting tube base resistance; 34, circuit controling switch; 35, frequency modulation inductance; 36, copper foil antenna; 37, the electric capacity that connects of the copper foil antenna other end and transmitting tube emitter; 38, shunt capacitance in parallel with tunable capacitor; 39, tunable capacitor.
Embodiment
Fig. 1, Fig. 2, figure describe the concrete a kind of mode implemented jointly.
1, element is selected: integrated circuit of wherein encoding selects 2262, and transmitting tube selects high-frequency tube, also can select 8050 triodes, and first order digital circuit, second level digital circuit and out-gate circuit are all not circuits, with wherein three doors of a piece 4069.
2, weld: radio circuit welds as shown in Figure 3, and the oscillating circuit that digital circuit and frequency-selective network are formed welds as shown in Figure 2.
3, modulate:
Adjustment oscillating circuit:
Adjustment duration of oscillation: be connected on the output of oscillating circuit with oscillographic red bar pen, black meter pen ground connection.
Observe oscillatory condition, make it frequency and meet the requirements.If frequency is undesirable, first adjust frequency-selecting, the value of adjustment two electric capacity, or the size of coil, adjust to required frequency values.
There is sensitivity adjustment resistance between the output of first order digital circuit, second level digital circuit and input, adjust its i.e. adjustable oscillation frequency degree.
Adjustment radio frequency and modulation operating state.
If make receiver with oscilloscope, be not directly connected with reflector, at this moment when pressing reflector, oscilloscope can respond, and represents that radio frequency is working properly with modulation.Otherwise the inductance value of induction regulation coil should be adjusted, or the resistance value of coding ic output, until sensitivity meets the requirements.
Make receiver with common single code reception device, now receiving unit can not receive signal.If with the specific dicode signal receiver of inventor's design, then dicode receiver can receive signal.
Claims (4)
1. digital vibration radiating circuit, is characterized in that: the oscillating circuit formed by digital circuit and frequency-selective network, integrated circuit of encoding, modulated resistance, radio circuit, indicating circuit form jointly;
Wherein: the output of the oscillating circuit that digital circuit and frequency-selective network are formed is connected the change code end of integrated circuit of encoding, connect radio circuit after the output connection modulated resistance of coding integrated circuit, indicating circuit is connected between power supply and ground wire;
Indicating circuit is made up of indicator light and protective resistance, and the positive pole of indicator light connects power supply, ground connection after negative pole series connection protective resistance;
The oscillating circuit that digital circuit and frequency-selective network are formed is made up of jointly RC series circuit, resistor-capacitor unit parallel circuits, two-stage amplifying circuit, out-gate circuit;
One end of RC series circuit connects with one end of resistor-capacitor unit parallel circuits, this contact is the output of frequency-selective network, connect the input of two-stage amplifying circuit, the output of another termination two-stage amplifying circuit of RC series circuit, the other end earth connection of resistor-capacitor unit parallel circuits;
Two-stage amplifying circuit is made up of two-stage digital circuit and two sensitivity adjustment resistance, the input of first order digital circuit is the input of two-stage amplifying circuit, the input of second level digital circuit connects the output of first order digital circuit, the output of second level digital circuit is the output of two-stage amplifying circuit, connect the input of out-gate circuit, the indirect sensitivity adjustment resistance of constrained input of two digital circuits;
Namely the output of out-gate circuit is the output of the oscillating circuit that digital circuit and frequency-selective network are formed, and connects the variation code in the address code of coding integrated circuit;
One end of modulated resistance connects the output of coding integrated circuit, and the other end of modulated resistance connects the emitter of transmitting tube in radio circuit;
Radio circuit is made up of copper foil antenna and transmitting tube, frequency modulation inductance, tunable capacitor;
Frequency modulation inductance one end in frequency-modulation element links together to connect with the power end of coding integrated circuit and connect power supply after control switch, one end of the other end connection copper foil antenna of frequency modulation inductance, transmitting tube collector electrode is connected to one end of copper foil antenna, transmitting tube base resistance is connected between the base stage of transmitting tube and collector electrode, the base stage of transmitting tube and an indirect resistance of emitter, the emitter of transmitting tube is also connected to the other end of modulated resistance, one end of another termination tunable capacitor of copper foil antenna, the other end of tunable capacitor connects the collector electrode of transmitting tube, a shunt capacitance that tunable capacitor is in parallel, the copper foil antenna other end has also connect the emitter of an electric capacity to transmitting tube.
2. digital vibration radiating circuit according to claim 1, is characterized in that: the remaining address code of coding integrated circuit and earth-freely also do not connect power supply, is suspension.
3. digital vibration radiating circuit according to claim 1, is characterized in that: the electric capacity in RC series circuit is electrodeless electric capacity.
4. digital vibration radiating circuit according to claim 1, is characterized in that: the not circuit that the digital circuit in two-stage amplifying circuit and out-gate circuit are all.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520341327.5U CN204652361U (en) | 2015-05-25 | 2015-05-25 | Digital vibration radiating circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520341327.5U CN204652361U (en) | 2015-05-25 | 2015-05-25 | Digital vibration radiating circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204652361U true CN204652361U (en) | 2015-09-16 |
Family
ID=54105068
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520341327.5U Expired - Fee Related CN204652361U (en) | 2015-05-25 | 2015-05-25 | Digital vibration radiating circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204652361U (en) |
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2015
- 2015-05-25 CN CN201520341327.5U patent/CN204652361U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150916 Termination date: 20170525 |