CN204013496U - The reflector of the formula of shaking frequency modulation - Google Patents
The reflector of the formula of shaking frequency modulation Download PDFInfo
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- CN204013496U CN204013496U CN201420483140.4U CN201420483140U CN204013496U CN 204013496 U CN204013496 U CN 204013496U CN 201420483140 U CN201420483140 U CN 201420483140U CN 204013496 U CN204013496 U CN 204013496U
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Abstract
The reflector of the formula of shaking frequency modulation, belong to electronic technology field, taking common coding integrated circuit 2262 as basis, propose a kind of new measure and form a kind of novel dicode radiating circuit, by control switch, indicating circuit, complementary type oscillating circuit, coding integrated circuit, radiating circuit forms jointly, whether indicating circuit is to detect control switch to connect, be whether each circuit has electric circuit, two outputs of complementary type oscillating circuit, one connects the change code end of coding integrated circuit, one connects one of them bit line of coding integrated circuit, the output of coding integrated circuit connects radiating circuit, when control switch is connected, the starting of oscillation immediately of complementary type oscillating circuit, make to encode integrated circuit bit line with become code end and form conversion, what make to send is no longer single code, promote the level of confidentiality degree of common coding, in radiating circuit, implement a kind of special copper foil antenna, make signal transmission more accurate, for good condition has been created in the extensive utilization of remote control product.
Description
Technical field
Belong to electronic technology field.
Background technology
Remote control product, whether outstandingly determine by the level of confidentiality degree of encoding and remote control distance, level of confidentiality degree is high, crack difficulty, remote control distance is far away simultaneously, remote control product is just outstanding so, otherwise poor, but being remote control distance, reality is subject to the impact of weather and surrounding environment quite large, weather is good, surrounding environment spaciousness, remote control distance is far away, bad weather, surrounding environment is crowded, it is near that remote control distance becomes, this phenomenon happens occasionally in remote control product, up to now, also fail complete adequate solution, thereby greatly hinder the utilization of remote control product, as everyone knows, remote control level of confidentiality degree forms by encoding, from present technical merit, present coding integrated circuit, a kind of is the kind taking rolling code as representative of higher gears, the advantage of this adhesive integrated circuit is that coding is complicated, crack difficulty, but price, technical difficulty is large simultaneously.Another kind of is the coding that is encoded to three kinds of states, as the 2262 coding integrated circuit kinds with representative, the integrated advantage of this class is that price is low, so the product of making has very large price competitiveness, market prospects are wide, but shortcoming is because the simple close utmost point of coding is not high, so can not be widely used in the product of having relatively high expectations.
Address these problems, also need the technology of innovation, thereby the research of remote control is also being continued.
Summary of the invention
Main purpose of the present utility model is taking common coding integrated circuit 2262 as basis, a kind of new measure is proposed, form a kind of novel dicode radiating circuit, after enforcement, signal transmission is accurate, and level of confidentiality degree improves, the anti-ability that cracks strengthens, form after a kind of coding techniques and other senior class coding integrated circuit combination of low-cost and high-quality, can realize superpower disintegration effect, remote control product can be used widely.
The measure that this patent proposes is:
1, the shake reflector of formula frequency modulation is made up of jointly control switch, indicating circuit, complementary type oscillating circuit, coding integrated circuit, radiating circuit.
Wherein: one end of control switch connects anode, and the other end is power line, connect the power end of complementary type oscillating circuit, coding integrated circuit, radiating circuit, indicating circuit.
Complementary type oscillating circuit: collector resistance one termination power of NPN triode, the other end connects the collector electrode of NPN triode, commissure electric capacity is connected between the collector electrode of NPN triode and the base stage of PNP triode, the emitter of PNP triode connects power supply, the base stage of the collector electrode of PNP triode and NPN triode is connected together, the base stage of PNP triode connects one end of a fixed resistance, the fixed resistance other end connects adjustable resistance to ground, the grounded emitter of NPN triode, the collector electrode of NPN triode is as the first output of complementary type oscillating circuit, the base stage of anti-phase triode connects first output of a resistance to complementary type oscillating circuit, the grounded emitter of anti-phase triode, the collector resistance of anti-phase triode connects power line, the current collection of anti-phase triode is the second output of complementary type oscillating circuit very.
The change code end of coding integrated circuit connects the first output of complementary type oscillating circuit, and one of them bit line of coding integrated circuit connects the second output of complementary type oscillating circuit.
The fixed code of coding integrated circuit connects power line, and all the other bit lines of coding integrated circuit connect power line.
Radiating circuit is made up of radio circuit and copper foil antenna.
The positive pole of battery supply becomes power line after connecting control switch, and protective resistance is connected between power line and indicator light, the other end ground connection of indicator light.
Copper foil antenna is specific english lowercase English alphabet n shape, the size of copper foil antenna is that the width of Copper Foil is 2mm, the length of two the vertical Copper Foils in left and right is 30mm, and the spacing of two vertical Copper Foils is 20mm, and the height that kiss connects the arc Copper Foil of two vertical Copper Foils is 4.5mm.
Radio circuit: one end of copper foil antenna is input, i.e. power line, the live wire of coding integrated circuit is connected on power line.
The output of coding integrated circuit connects one end of modulated resistance, the base stage of another termination modulating tube of modulated resistance, the grounded emitter of modulation triode, modulation transistor collector is divided into three tunnels, the first via connects the emitter of vapotron, the second tunnel connects a termination in three terminations of crystal oscillator, and Third Road connects one end of a shunt capacitance, on the input of another termination copper foil antenna of this electric capacity.
Another two terminations of crystal oscillator, the termination line input of starting to exchange fire, another termination connects the base stage of vapotron.
The base stage of vapotron connects a resistance, and another termination of resistance is connected on copper foil antenna input.
The input of copper foil antenna has also connect a tunable capacitor, the output of the other end connection copper foil antenna of tunable capacitor, the i.e. collector electrode of vapotron.
Tunable capacitor is an also in parallel electric capacity.
2, vapotron and modulating tube can be used the triode of same type.
3, control switch is micro press-key switch, can work as the welding of paster switch.
4, all the other bit lines of coding integrated circuit can ground connection, also can suspend and not connect.
This measure is further explained as follows:
1, in this measure, the oscillating unit of realizing change code is a very important part, designer has designed interlock circuit and has coordinated with it, as shown in Figure 1, the principle of its vibration is: when opening after power supply, PNP triode (03 in Fig. 1) has minute quantity electric current, the gesture that formation is opened, at this moment larger collector electrode becomes the base current of rear N triode, cause the open-minded of NPN triode (06 in Fig. 2), the reduction of its collector voltage, and the commissure electric capacity of NPN transistor collector and PNP triode has formed strong positive feedback, its result causes the open-minded rapidly of PNP triode and NPN triode two pipes, two pipes present saturated shape, when commissure electric capacity electricity is full of, feedback finishes, , this pipe starts to change to cut-off direction, commissure electric capacity starts electric discharge in the other direction, its result reduces the bias current of PNP triode, the bias current of NPN triode reduces, owing to producing the reason of strong feedback, the cut-off simultaneously of two pipes, form first cycle of vibration, when the reciprocal current discharge of commissure electric capacity discharges, at this moment the gesture that becomes to open again because of PNP triode, in like manner produce second period, the 3rd cycle etc.Thereby alternately changing of output generation 1 and 0.
When first of complementary type oscillating circuit is output as a high position, by the base resistance (08 in Fig. 1) of anti-phase triode, make anti-phase triode (09 in Fig. 1) conducting, the collector voltage of anti-phase triode reduces, if first of complementary type oscillating circuit is output as low level, cannot make anti-phase triode conducting, so anti-phase triode cut-off, the current collection of anti-phase triode is very high-order, and the base resistance of anti-phase triode and collector resistance can adjust suitable numerical value very easily.
In foregoing circuit simple in circuits, less demanding to triode, due under PNP triode partially resistance adopted the connect form of fixed resistance with adjustable resistance, so be very easily adjusted into the desired frequency of the person of establishing, and mate with whole circuit.Another feature of this circuit is that the resistance to height of triode can be used in and requires high circuit, thereby adaptive surface is very wide, has expanded transmitting field.
2, in measure 1, complementary type oscillating circuit has formed two kinds of relations with coding integrated circuit, a kind of relation is the conversion that coding integrated circuit is become to code end, the coded portion of coding integrated circuit has been divided into two parts, a part is the fixed code having connected in advance, and another part is to export with first of complementary type oscillating circuit the change code being connected.In the time that manual operation is launched, oscillating unit vibration, the change code of coding integrated circuit has just become 0 and 1 two states, and the integrated circuit of at this moment encoding just can only a kind of solid size transmitting become two kinds of outputs of dicode from former.By the excitation to modulating tube, reach the object of dicode modulate emission.
Another kind of relation is the conversion of one of them bit line to coding integrated circuit, the effect of anti-phase triode in Fig. 1, it is anti-phase all the time, if be input as height, output is just low, if be input as low, output is just high, therefore, in the time that first of integration type complementary type oscillating circuit is output as a high position, the second output of integration type complementary type oscillating circuit is just low level, one of them bit line of integrated circuit of encoding is so just low level, 0, if first of integration type complementary type oscillating circuit is output as low level, the second output of integration type complementary type oscillating circuit is just high-order, encode one of them bit line of integrated circuit so just for high-order, 1, therefore formed the conversion of one of them bit line of coding integrated circuit.
3, in measure 1, its feature one is, adjustable at the frequency agile due to oscillating unit, completely can the such ideal situation of furnishing in the time producing, and within the needed time of operation push-button, (as 0.5 second), has completed the necessary condition of twice variation code.Its feature two is, because only need not two with a coding integrated circuit, and this integrated circuit chip select end ground connection, circuit is reliable.
4, the distance of transmitting is that sensitivity and weather have a significant impact, and high-end remote control product is very high to the requirement of sensitivity, if by traditional method for designing, be difficult to ensure to meet the requirement of adjusting the distance, its reason is, general transmitting can Iterim Change position and the distance of transmitting, can receive that signal just could as long as can meet at that time reception.If special product, the requirement of adjusting the distance is strict, once at bad weather, is just difficult to ensure the performance of product, increases necessary measure so essential.And this transmitting can largely improve sensitivity, this is because specific a kind of copper foil antenna is specific english lowercase English alphabet n shape, article two, vertical Copper Foil top connects with arc Copper Foil kissing, the size of copper foil antenna is that the width of Copper Foil is 2mm, the length of two the vertical Copper Foils in left and right is 30mm, article two, the spacing of vertical Copper Foil is 20mm, and the height that kiss connects the arc Copper Foil of two vertical Copper Foils is 4.5mm.Strict formulation, allows transmitting have better coupling with reception, experiment showed, that such being transmitted in reduced weather and surrounding environment to a great extent on the impact transmitting.
5, in radiating circuit, adopt crystal oscillator formula circuit, its benefit is that radio frequency is stable, characteristic is good, so can be for needing remote control distance place far away.
Enforcement is rear or under the cooperation of the supporting receiver of designer, the present invention has following outstanding advantage to be:
1, promoted the level of confidentiality degree of coding integrated circuit, become dicode transmitting by solid size transmitting, not only make a yard line have conversion, and make bit line also have conversion, after coordinating with supporting reception, strengthen and prevented cracking ability, because the integrated circuit cost of common coding is low, thereby make after product, there is very strong competitiveness.
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, crack difficulty than a kind of coding of character larger.
3, reliably, its reason is while launching the change code of dicode generation to the transmitting of the dicode of this measure, can be disorderly, only can repeat, and two kinds of change yard states are obvious, offer a clear explanation, and the receiving unit designing with inventor extremely mates.
4, complementary type oscillating circuit simple in circuits, withstand voltage can being used in of triode requires high circuit, and while producing very strong transmitting power, thereby adaptive surface is very wide, has expanded transmitting field.
5, in radiating circuit, adopt crystal oscillator formula circuit, its benefit is that radio frequency is stable, characteristic is good, so can be for needing remote control distance place far away.
6, circuit is reliable, and the one, circuit is simplified, and the 2nd, antenna is applied into by printed panel, does not produce variation in shape, does not affect radio frequency, has adopted the elite of universal design.
7, produce easily, the one, equipment that need not be valuable and instrument, the 2nd, technology is simple, the 3rd, circuit simplify and element requirement used low, so can produce very high first-pass yield, very applicable minuscule-type-enterprise produces.
Brief description of the drawings
Fig. 1 is complementary type oscillating circuit figure.
In figure: 1-1, power line; 01, the collector resistance of NPN triode; 02, commissure electric capacity; 03, PNP triode; 05, adjustable resistance; 06, NPN triode; 07, fixed resistance; 08, the base resistance of anti-phase triode; 09, anti-phase triode; 010, the collector resistance of anti-phase triode; 17, first of complementary type oscillating circuit the output, the change code end of the integrated circuit of encoding; 20, second of complementary type oscillating circuit the output, one of them bit line of the integrated circuit of encoding.
Fig. 2 is the total measure schematic diagram of reflector of formula frequency modulation of shaking.
In figure: 1-1, power line; 1, control switch; 2, protective resistance; 3, indicator light; 4, crystal oscillator; 5, vapotron base resistance; 6, shunt capacitance; 7, tunable capacitor; 8, the electric capacity in parallel with tunable capacitor; 9, vapotron; 10, coding integrated circuit; 11, the output of coding integrated circuit; 12, modulated resistance; 13, modulation triode; 15, the fixed code of coding integrated circuit; 16, complementary type oscillating circuit; 17, first of complementary type oscillating circuit the output, the change code end of the integrated circuit of encoding; 20, second of complementary type oscillating circuit the output, one of them bit line of the integrated circuit of encoding; 22, all the other bit lines of coding integrated circuit; 23, copper foil antenna.
concrete embodiment
Fig. 1, Fig. 2 have described a kind of mode of concrete enforcement jointly.
1, select element: the integrated circuit of wherein encoding selects 2262, and triode is selected high-frequency tube, also can select 8050 triodes.
2, welding: welding is as shown in Figure 2 implemented in total measure, and complementary type oscillating circuit welds as shown in Figure 1.
3, modulation:
(1), adjust complementary type vibration:
Adjust duration of oscillation: be connected on the output of oscillating circuit black meter pen ground connection with oscillographic red pen.
Observe vibration situation, make it frequency and meet the requirements.If frequency is undesirable, adjust commissure capacitance size, if frequency is too fast, capacitance is increased, otherwise reduce its value.
Adjusting complementary type oscillating circuit second exports: the base resistance of the anti-phase triode of capable of regulating and collector resistance, in the time that complementary type oscillating circuit first is output as a high position, the collector voltage of anti-phase triode can not exceed 0.7V, otherwise adjust base resistance resistance, resistance is lower, the collector voltage of anti-phase triode is lower, otherwise higher, in the time that complementary type oscillating circuit first is output as low level, the collector voltage of anti-phase triode should be equal to the voltage of power line, otherwise should adjust collector resistance resistance, resistance is lower, the collector voltage of anti-phase triode is lower, otherwise higher.
(2), adjust radio frequency and modulation operating state:
If make receiver with oscilloscope, be not directly connected with reflector, at this moment, in the time pressing reflector, oscilloscope can respond, and represents that radio frequency is working properly with modulation.Otherwise should adjust the sense value of induction regulation coil, or the resistance value of coding ic output, until sensitivity meets the requirements.
4, make receiver with common solid size receiver, now receiving unit can not be received signal.If with the specific dicode signal receiver of inventor's design, dicode receiver can be received signal.
Claims (4)
1. the reflector of the formula of shaking frequency modulation, is characterized in that: be jointly made up of control switch, indicating circuit, complementary type oscillating circuit, coding integrated circuit, radiating circuit;
Wherein: one end of control switch connects anode, and the other end is power line, connect the power end of complementary type oscillating circuit, coding integrated circuit, radiating circuit, indicating circuit;
Complementary type oscillating circuit: collector resistance one termination power of NPN triode, the other end connects the collector electrode of NPN triode, commissure electric capacity is connected between the collector electrode of NPN triode and the base stage of PNP triode, the emitter of PNP triode connects power supply, the base stage of the collector electrode of PNP triode and NPN triode is connected together, the base stage of PNP triode connects one end of a fixed resistance, the fixed resistance other end connects adjustable resistance to ground, the grounded emitter of NPN triode, the collector electrode of NPN triode is as the first output of complementary type oscillating circuit, the base stage of anti-phase triode connects first output of a resistance to complementary type oscillating circuit, the grounded emitter of anti-phase triode, the collector resistance of anti-phase triode connects power line, the current collection of anti-phase triode is the second output of complementary type oscillating circuit very,
The change code end of coding integrated circuit connects the first output of complementary type oscillating circuit, and one of them bit line of coding integrated circuit connects the second output of complementary type oscillating circuit;
The fixed code of coding integrated circuit connects power line, and all the other bit lines of coding integrated circuit connect power line;
Radiating circuit is made up of radio circuit and copper foil antenna;
The positive pole of battery supply becomes power line after connecting control switch, and protective resistance is connected between power line and indicator light, the other end ground connection of indicator light;
Copper foil antenna is specific english lowercase English alphabet n shape, the size of copper foil antenna is that the width of Copper Foil is 2mm, the length of two the vertical Copper Foils in left and right is 30mm, and the spacing of two vertical Copper Foils is 20mm, and the height that kiss connects the arc Copper Foil of two vertical Copper Foils is 4.5mm;
Radio circuit: one end of copper foil antenna is input, i.e. power line, the live wire of coding integrated circuit is connected on power line;
The output of coding integrated circuit connects one end of modulated resistance, the base stage of another termination modulating tube of modulated resistance, the grounded emitter of modulation triode, modulation transistor collector is divided into three tunnels, the first via connects the emitter of vapotron, the second tunnel connects a termination in three terminations of crystal oscillator, and Third Road connects one end of a shunt capacitance, on the input of another termination copper foil antenna of this electric capacity;
Another two terminations of crystal oscillator, the termination line input of starting to exchange fire, another termination connects the base stage of vapotron;
The base stage of vapotron connects a resistance, and another termination of resistance is connected on copper foil antenna input;
The input of copper foil antenna has also connect a tunable capacitor, the output of the other end connection copper foil antenna of tunable capacitor, the i.e. collector electrode of vapotron;
Tunable capacitor is an also in parallel electric capacity.
2. the reflector of the formula frequency modulation that shakes according to claim 1, is characterized in that: vapotron and modulating tube can be used the triode of same type.
3. the reflector of the formula frequency modulation that shakes according to claim 1, is characterized in that: control switch is micro press-key switch, can work as the welding of paster switch.
4. the reflector of the formula frequency modulation that shakes according to claim 1, is characterized in that: all the other bit lines of coding integrated circuit can ground connection, also can suspend and not connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420483140.4U CN204013496U (en) | 2014-08-26 | 2014-08-26 | The reflector of the formula of shaking frequency modulation |
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| CN201420483140.4U CN204013496U (en) | 2014-08-26 | 2014-08-26 | The reflector of the formula of shaking frequency modulation |
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| CN204013496U true CN204013496U (en) | 2014-12-10 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106600945A (en) * | 2015-10-20 | 2017-04-26 | 重庆尊来科技有限责任公司 | Composite dual-emitting apparatus |
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2014
- 2014-08-26 CN CN201420483140.4U patent/CN204013496U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106600945A (en) * | 2015-10-20 | 2017-04-26 | 重庆尊来科技有限责任公司 | Composite dual-emitting apparatus |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141210 Termination date: 20150826 |
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| EXPY | Termination of patent right or utility model |