CN204046577U - Oscillation mode dicode radiating circuit - Google Patents
Oscillation mode dicode radiating circuit Download PDFInfo
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- CN204046577U CN204046577U CN201420470910.1U CN201420470910U CN204046577U CN 204046577 U CN204046577 U CN 204046577U CN 201420470910 U CN201420470910 U CN 201420470910U CN 204046577 U CN204046577 U CN 204046577U
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Abstract
Oscillation mode dicode radiating circuit, belong to electronic technology field, by thyrister form oscillating circuit, coding integrated circuit, radio circuit, indicating circuit, control switch forms jointly, control switch is connected to battery supply, after control switch is connected, each circuit is charged immediately, the output of thyrister form oscillating circuit connects the change code end of coding integrated circuit, the output of coding integrated circuit connects radio circuit, after control switch is connected, thyrister form oscillating circuit vibrates immediately, make the circulation of the change code end formation 1 and 0 of coding integrated circuit, what radio circuit was sent is no longer single code, possesses conversion, there is the very high anti-ability of cracking, if with coordinating of rolling code circuit, level of confidentiality is higher, because rudimentary coding integrated circuit has cheap advantage, so its product has very strong competitiveness.
Description
Technical field
Belong to electronic technology field.
Background technology
Society is improving, science and technology is in development, and telecontrol engineering is more and more general, however, but in general family, anti-theft safety door most or mechanical key is unblanked, although key is also dangerous, often has a key can open the reports of two to three locks, but still do not replace with remote control, this just illustrates 2 points: one is that remote control cost is too high, can not spread among general family, and two is that the accuracy of remote control is not as mechanical key.This is because the coding of coding integrated circuit is simple, easily cracked by people, thus privacy degrees is inadequate, if integrated circuit need not be encoded, be exactly existing rolling code, but cost is too high again, so the product made has very large price competitiveness, wide market, but shortcoming due to simple close pole of encoding not high, so can not be widely used in the higher product of requirement.
If imagination can produce the coding circuit of highly dense pole with cheap coding integrated circuit, obviously the competitiveness improving product is had a very big significance.But reach such effect, also require further study invention, need the science and technology of innovation to coordinate with it, therefore now commercially also fail extensively to popularize this series products.
Summary of the invention
Main purpose of the present utility model proposes a kind of New Measure, and it is is representative with 2262 coding integrated circuit be auxiliary, reduction product cost, and with other higher level code integrated circuit combination after, level of confidentiality is higher, prevents cracking ability stronger.
The measure that this patent proposes is:
1, oscillation mode dicode radiating circuit is made up of jointly thyrister form oscillating circuit, coding integrated circuit, radio circuit, indicating circuit, control switch.
Wherein: 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 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.
One end of control switch connects battery supply, and the other end of control switch is the power supply of thyrister form oscillating circuit, coding integrated circuit, radio circuit, indicating circuit.
Indicating circuit is made up of protective resistance and indicator light.
One end of protective resistance is connected to the other end of control switch, ground connection after the other end connection indicator light of protective resistance.
Thyrister form oscillating circuit: silicon controlled anode resistance is received on power supply, silicon controlled minus earth, one termination power of integrating resistor, the other end connects with the positive pole of integrating capacitor, the minus earth of integrating capacitor, the positive pole of integrating capacitor connects a discharge diode to silicon controlled anode, the positive pole of integrating capacitor also connects a voltage-stabiliser tube and controls pole to silicon controlled, SCR control pole connects a resistance to ground, silicon controlled anode becomes the output of thyrister form oscillating circuit, connects the change code end of coding integrated circuit.
The output of coding integrated circuit connects one end of modulated resistance, and the other end of modulated resistance connects the emitter of transmitting tube.
The change code end of coding integrated circuit connects the output of thyrister form oscillating circuit, the fixed code earth connection of coding integrated circuit.
2, the second connection of the fixed code of coding integrated circuit connects power supply.
3, the third connection of integrated circuit fixed code of encoding is two or three code bit earth connections, and all the other connect power supply.
4, the power of controllable silicon anode resistance selects 1/2nd watts.
This measure is explained as follows further:
When transmitting switches on power, after namely control switch closes, thyrister form oscillating circuit starts rapidly, because the change code of coding integrated circuit has terminated in the output of thyrister form oscillating circuit, therefore, can send the code of conversion.
1, according to measure 1, if person aims at a kind of a kind of modified model oscillating circuit be made up of integrated circuit of this line design, the principle formed is: after opening power supply, power supply is charged to integrating capacitor (202 in Fig. 2) by integrating resistor (201 in Fig. 2), the conducting of controllable silicon (in Fig. 2 203) after institute's charging voltage value exceedes threshold voltage, become saturated shape, become the front half period of vibration.At this moment integrating capacitor electric discharge will by discharge diode (207 in Fig. 2) to silicon controlled anode discharge, after the magnitude of voltage after electric discharge is lower than threshold values, trigger current can not be produced again, resistance again due to silicon controlled load resistance R3.5 is larger, maintenance required for controllable silicon self-sustaining electric current can not be provided, at this moment controllable silicon can exit saturated shape and again become cut-off, simultaneously section for some time, thus becomes the later half cycle of vibration.At this moment integrating resistor (201 in Fig. 2) is again to integrating capacitor (202 in Fig. 2) charging, becomes the second round of vibration, three cycles, etc., voltage-stabiliser tube (206 in Fig. 2) plays threshold values effect in circuit.
The advantage of this circuit holds flimsy active to only have one, and circuit is reliable, and easy starting of oscillation is an outstanding circuit meeting overall line requirements.
2, in measure 1, thyrister form oscillating circuit defines such annexation with coding integrated circuit, the coded portion of coding integrated circuit has been divided into two parts, a part is the fixed code connected in advance, this fixed code can ground connection, also can connect power supply, flexible and changeable, another part is the change code be connected with thyrister form oscillating circuit.When manual operation is launched, thyrister form oscillating circuit vibrates, and the change code end 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, the frequency agile due to thyrister form oscillating circuit is adjustable, completely can the such ideal situation of furnishing when producing, and within the time required for operation push-button, (as 0.5 second), completes the necessary condition of twice change code.Need not two pieces because only using a block forecast integrated circuit, coding integrated circuit chip select end ground connection, circuit is reliable.
4, except thyrister form oscillating circuit and fgs encoder peripheral element and except element, constitute radio frequency and produce and launch necessary part, transmitting tube is wherein shared with modulating tube, simple and convenient.
5, in radio frequency, this patent 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.Because triode belongs to consumable accessory, above 2 points, decrease overall face, space simultaneously and occupy situation.
6, in radio frequency, this patent 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 platinum in printed panel to apply into certain switch, and whole volume is little, can be contained in less launch-box.
After implementing or under the cooperation of the supporting receiver of designer, the present invention has following outstanding advantage to be:
1, achieve the change code form of the coding integrated circuit of low price, improve the character of coding integrated circuit, what send is no longer the solid size be easily cracked, but has had conversion, has 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 circuit is simplified, and two is that 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, thyrister form oscillating circuit circuit is reliable, and easy starting of oscillation is an outstanding circuit meeting overall line requirements.
6, 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 measure 1 schematic diagram.
Wherein: 1, thyrister form oscillating circuit; 2, namely the output of thyrister form oscillating circuit encodes the change code end of integrated circuit; 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 thyrister form oscillating circuit figure.
In figure: 1-1, power line; 2, namely the output of thyrister form oscillating circuit encodes the change code end of integrated circuit; 201, integrating resistor; 202, integrating capacitor; 203, controllable silicon; 204, controllable silicon anode resistance; 205, SCR control electrode resistance; 206, voltage-stabiliser tube; 207, discharge diode.
Fig. 3 is radio circuit figure.
In figure: 1-1, power line; 3, coding integrated circuit; 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.
concrete embodiment
Fig. 1, Fig. 2, Fig. 3 describe the concrete a kind of mode implemented jointly.
The welding shown in Fig. 2 pressed by thyrister form oscillating circuit, and radio circuit such as Fig. 3 welds.
1, element is selected: integrated circuit of wherein encoding selects 2262, and transmitting tube selects high-frequency tube, also can select 8050 triodes.
2, oscillating unit relevant parameters is adjusted:
(1), adjustment oscillating operation condition: be connected on the output of oscillating circuit with oscillographic red bar pen, black meter pen ground connection, after vibration, oscillography there will be normal reaction.
If not oscillates, SCR control pole resistance value is over the ground reduced.Or the resistance of controllable silicon control anode resistance is increased.
(2), the frequency of adjustment vibration: be connected on the output of oscillating circuit with oscillographic red bar pen, black meter pen ground connection, observe frequency of oscillation, if front half cycle is too short, the resistance of integrating resistor can be increased, the too short resistance that can increase SCR control pole resistance to earth of later half cycle.
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. oscillation mode dicode radiating circuit, is characterized in that: be jointly made up of thyrister form oscillating circuit, coding integrated circuit, radio circuit, indicating circuit, control switch:
Wherein: 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 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,
One end of control switch connects battery supply, and the other end of control switch is the power supply of thyrister form oscillating circuit, coding integrated circuit, radio circuit, indicating circuit;
Indicating circuit is made up of protective resistance and indicator light:
One end of protective resistance is connected to the other end of control switch, ground connection after the other end connection indicator light of protective resistance;
Thyrister form oscillating circuit: silicon controlled anode resistance is received on power supply, silicon controlled minus earth, one termination power of integrating resistor, the other end connects with the positive pole of integrating capacitor, the minus earth of integrating capacitor, the positive pole of integrating capacitor connects a discharge diode to silicon controlled anode, the positive pole of integrating capacitor also connects a voltage-stabiliser tube and controls pole to silicon controlled, SCR control pole connects a resistance to ground, silicon controlled anode becomes the output of thyrister form oscillating circuit, connects the change code end of coding integrated circuit;
The output of coding integrated circuit connects one end of modulated resistance, and the other end of modulated resistance connects the emitter of transmitting tube;
The change code end of coding integrated circuit connects the output of thyrister form oscillating circuit, the fixed code earth connection of coding integrated circuit.
2. oscillation mode dicode radiating circuit according to claim 1, is characterized in that: the second connection of the fixed code of coding integrated circuit connects power supply.
3. oscillation mode dicode radiating circuit according to claim 1, is characterized in that: the third connection of coding integrated circuit fixed code is two or three code bit earth connections, and all the other connect power supply.
4. oscillation mode dicode radiating circuit according to claim 1, is characterized in that: the power of controllable silicon anode resistance selects 1/2nd watts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420470910.1U CN204046577U (en) | 2014-08-20 | 2014-08-20 | Oscillation mode dicode radiating circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420470910.1U CN204046577U (en) | 2014-08-20 | 2014-08-20 | Oscillation mode dicode radiating circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204046577U true CN204046577U (en) | 2014-12-24 |
Family
ID=52247198
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420470910.1U Expired - Fee Related CN204046577U (en) | 2014-08-20 | 2014-08-20 | Oscillation mode dicode radiating circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204046577U (en) |
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2014
- 2014-08-20 CN CN201420470910.1U patent/CN204046577U/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: 20141224 Termination date: 20160820 |