CN204316487U - A kind of voltage controlled oscillator of high stability - Google Patents
A kind of voltage controlled oscillator of high stability Download PDFInfo
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- CN204316487U CN204316487U CN201420698921.5U CN201420698921U CN204316487U CN 204316487 U CN204316487 U CN 204316487U CN 201420698921 U CN201420698921 U CN 201420698921U CN 204316487 U CN204316487 U CN 204316487U
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Abstract
The utility model discloses a kind of voltage controlled oscillator of high stability, primarily of oscillating circuit, the micro-processor interface circuit be connected with oscillating circuit, and the signal amplification circuit be connected with micro-processor interface circuit forms, and it is characterized in that: be also provided with phase lock circuitry at the output of signal amplification circuit; Described phase lock circuitry is by triode Q6, and triode Q7, triode Q8, resistance R14, resistance R15, resistance R16, resistance R17, resistance R18, resistance R19, electric capacity C6, electric capacity C7 form; The utility model is provided with phase lock circuitry, and it can make the frequency of oscillation stability of output higher, avoids signal of communication distortion.
Description
Technical field
The utility model relates to a kind of circuit, specifically refers to a kind of voltage controlled oscillator of high stability.
Background technology
Along with the development of communication, voltage controlled oscillator is widely used in the communication equipments such as radio broadcasting, for generation of electromagnetic wave.But the frequency of oscillation that current voltage controlled oscillator exports is unstable, this is easy to the existing picture occurring signal of communication distortion.
Utility model content
The purpose of this utility model is the defect overcoming the frequency of oscillation instability that current voltage controlled oscillator exports, and provides a kind of stability high and the voltage controlled oscillator of high stability of good performance.
The following technical scheme of the purpose of this utility model realizes: a kind of voltage controlled oscillator of high stability, primarily of oscillating circuit, the micro-processor interface circuit be connected with oscillating circuit, and the signal amplification circuit to be connected with micro-processor interface circuit forms, and is also provided with phase lock circuitry at the output of signal amplification circuit, described phase lock circuitry is by triode Q6, and triode Q7, triode Q8, resistance R14, resistance R15, resistance R16, resistance R17, resistance R18, resistance R19, electric capacity C6, electric capacity C7 form, resistance R14, resistance R15, resistance R16, resistance R17, one end of resistance R18 is all connected with the base stage of triode Q8, the other end of resistance R18 is connected with the collector electrode of triode Q8, the other end of resistance R17 is connected with the collector electrode of triode Q7, the other end of resistance R16 is connected with the base stage of triode Q6, the other end of resistance R15 is connected with the base stage of triode Q7, the other end of resistance R14 is connected with the collector electrode of triode Q6, one end of resistance R19 is connected with the base stage of triode Q8, the other end is connected with the emitter of triode Q7, the positive pole of electric capacity C7 is connected with the emitter of triode Q8, negative pole is connected with the base stage of triode Q6, the positive pole of electric capacity C6 is connected with the base stage of triode Q7, negative pole is connected with the collector electrode of triode Q6, the collector electrode of described triode Q8 is connected with the emitter of triode Q7, the emitter of triode Q7 is connected with the emitter of triode Q6, the collector and emitter of triode Q6 is all connected with signal amplification circuit.
Further, described oscillating circuit is by oscillistor T, triode Q1, triode Q2, the resistance R1 that one end is connected with the base stage of triode Q1, the other end is connected with the collector electrode of triode Q1 after resistance R2, positive pole is connected with the base stage of triode Q1, the electric capacity C1 of minus earth, and one end is connected with the emitter of triode Q1, the resistance R3 of other end ground connection, and the electric capacity C2 between the emitter and collector being serially connected in triode Q1 forms; Between the base stage that the two ends of described oscillistor T are serially connected in triode Q1 and collector electrode, the base stage of triode Q2 is connected with triode Q1 collector electrode, grounded emitter, collector electrode are then connected with micro-processor interface circuit, and resistance R1 is connected with micro-processor interface circuit with external power source with the tie point of resistance R2 simultaneously.
Described microprocessor comprises resistance R4, resistance R5, resistance R6, and triode Q3; One end of resistance R4 is connected with the collector electrode of triode Q3, other end ground connection after resistance R5, and one end of resistance R6 is connected with the emitter of triode Q3, other end ground connection; The base stage of described triode Q3 is connected with the tie point of resistance R5 with resistance R4 with the collector electrode of triode Q2 simultaneously, its collector electrode is then connected with the tie point of resistance R2 with resistance R1, its emitter is also connected with amplifying circuit.
Described amplifying circuit is by triode Q4, triode Q5, negative pole is connected with the emitter of triode Q3, the electric capacity C3 that positive pole is connected with the base stage of triode Q4 after resistance R7, one end is connected with the base stage of triode Q4, the resistance R11 that the other end is then connected with the emitter of triode Q5 after resistance R12, one end is connected with the base stage of triode Q4, the resistance R10 that the other end is connected with the emitter of triode Q5, negative pole is connected with the emitter of triode Q5, the electric capacity C5 that positive pole is connected with the collector electrode of triode Q5 after resistance R13, positive pole is connected with the collector electrode of triode Q5, the electric capacity C4 of minus earth, one end is connected with the base stage of triode Q5, the resistance R8 that the other end is connected with the collector electrode of triode Q5, and form with the resistance R9 that resistance R8 is in parallel, the collector electrode of described triode Q4 is connected with the base stage of triode Q5, grounded emitter, and the collector electrode of triode Q5 is connected with the negative pole of electric capacity C6, and the positive pole of electric capacity C5 is connected with the emitter of triode Q6.
The utility model compared with prior art, has the following advantages and beneficial effect:
(1) the utility model is provided with phase lock circuitry, and it can make the frequency of oscillation stability of output higher, avoids signal of communication distortion.
(2) the utility model is provided with amplifying circuit, makes the signal of output more clear.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present utility model.
Embodiment
Below in conjunction with specific embodiment, the utility model is described in further detail, but execution mode of the present utility model is not limited thereto.
Embodiment
As shown in Figure 1, the voltage controlled oscillator of high stability of the present utility model, primarily of oscillating circuit, the micro-processor interface circuit be connected with oscillating circuit, and the signal amplification circuit be connected with micro-processor interface circuit forms.In order to better realize the purpose of this utility model, be also provided with phase lock circuitry at the output of signal amplification circuit.
Wherein, phase lock circuitry is by triode Q6, and triode Q7, triode Q8, resistance R14, resistance R15, resistance R16, resistance R17, resistance R18, resistance R19, electric capacity C6, electric capacity C7 form, resistance R14, resistance R15, resistance R16, resistance R17, one end of resistance R18 is all connected with the base stage of triode Q8, the other end of resistance R18 is connected with the collector electrode of triode Q8, the other end of resistance R17 is connected with the collector electrode of triode Q7, the other end of resistance R16 is connected with the base stage of triode Q6, the other end of resistance R15 is connected with the base stage of triode Q7, the other end of resistance R14 is connected with the collector electrode of triode Q6, one end of resistance R19 is connected with the base stage of triode Q8, the other end is connected with the emitter of triode Q7, the positive pole of electric capacity C7 is connected with the emitter of triode Q8, negative pole is connected with the base stage of triode Q6, the positive pole of electric capacity C6 is connected with the base stage of triode Q7, negative pole is connected with the collector electrode of triode Q6, the collector electrode of described triode Q8 is connected with the emitter of triode Q7, the emitter of triode Q7 is connected with the emitter of triode Q6, the collector and emitter of triode Q6 is all connected with signal amplification circuit.Phase lock circuitry can locking frequency phase place, makes frequency of oscillation more stable, avoids signal of communication to cause distortion because of frequency fluctuation.
This oscillating circuit is for generation of electromagnetic wave, it is by the oscillistor T as electromagnetic wave generator, triode Q1, triode Q2, the resistance R1 that one end is connected with the base stage of triode Q1, the other end is connected with the collector electrode of triode Q1 after resistance R2, positive pole is connected with the base stage of triode Q1, the electric capacity C1 of minus earth, and one end is connected with the emitter of triode Q1, the resistance R3 of other end ground connection, and the electric capacity C2 between the emitter and collector being serially connected in triode Q1 forms; Between the base stage that the two ends of described oscillistor T are serially connected in triode Q1 and collector electrode, the base stage of triode Q2 is connected with triode Q1 collector electrode, grounded emitter, collector electrode are then connected with micro-processor interface circuit, and resistance R1 is connected with micro-processor interface circuit with external power source with the tie point of resistance R2 simultaneously.
Microprocessor processes it to the electromagnetic wave that oscillating circuit produces and comprises resistance R4, resistance R5, resistance R6, and triode Q3; One end of resistance R4 is connected with the collector electrode of triode Q3, other end ground connection after resistance R5, and one end of resistance R6 is connected with the emitter of triode Q3, other end ground connection; The base stage of described triode Q3 is connected with the tie point of resistance R5 with resistance R4 with the collector electrode of triode Q2 simultaneously, its collector electrode is then connected with the tie point of resistance R2 with resistance R1, its emitter is also connected with amplifying circuit.
Described amplifying circuit is by triode Q4, triode Q5, negative pole is connected with the emitter of triode Q3, the electric capacity C3 that positive pole is connected with the base stage of triode Q4 after resistance R7, one end is connected with the base stage of triode Q4, the resistance R11 that the other end is then connected with the emitter of triode Q5 after resistance R12, one end is connected with the base stage of triode Q4, the resistance R10 that the other end is connected with the emitter of triode Q5, negative pole is connected with the emitter of triode Q5, the electric capacity C5 that positive pole is connected with the collector electrode of triode Q5 after resistance R13, positive pole is connected with the collector electrode of triode Q5, the electric capacity C4 of minus earth, one end is connected with the base stage of triode Q5, the resistance R8 that the other end is connected with the collector electrode of triode Q5, and form with the resistance R9 that resistance R8 is in parallel, the collector electrode of described triode Q4 is connected with the base stage of triode Q5, grounded emitter, and the collector electrode of triode Q5 is connected with the negative pole of electric capacity C6, and the positive pole of electric capacity C5 is connected with the emitter of triode Q6.After amplifying circuit process, the signal exported is more clear.
As mentioned above, just well the utility model can be realized.
Claims (4)
1. the voltage controlled oscillator of a high stability, primarily of oscillating circuit, the micro-processor interface circuit be connected with oscillating circuit, and the signal amplification circuit be connected with micro-processor interface circuit forms, and it is characterized in that: be also provided with phase lock circuitry at the output of signal amplification circuit, described phase lock circuitry is by triode Q6, and triode Q7, triode Q8, resistance R14, resistance R15, resistance R16, resistance R17, resistance R18, resistance R19, electric capacity C6, electric capacity C7 form, resistance R14, resistance R15, resistance R16, resistance R17, one end of resistance R18 is all connected with the base stage of triode Q8, the other end of resistance R18 is connected with the collector electrode of triode Q8, the other end of resistance R17 is connected with the collector electrode of triode Q7, the other end of resistance R16 is connected with the base stage of triode Q6, the other end of resistance R15 is connected with the base stage of triode Q7, the other end of resistance R14 is connected with the collector electrode of triode Q6, one end of resistance R19 is connected with the base stage of triode Q8, the other end is connected with the emitter of triode Q7, the positive pole of electric capacity C7 is connected with the emitter of triode Q8, negative pole is connected with the base stage of triode Q6, the positive pole of electric capacity C6 is connected with the base stage of triode Q7, negative pole is connected with the collector electrode of triode Q6, the collector electrode of described triode Q8 is connected with the emitter of triode Q7, the emitter of triode Q7 is connected with the emitter of triode Q6, the collector and emitter of triode Q6 is all connected with signal amplification circuit.
2. the voltage controlled oscillator of a kind of high stability according to claim 1, it is characterized in that: described oscillating circuit is by oscillistor T, triode Q1, triode Q2, the resistance R1 that one end is connected with the base stage of triode Q1, the other end is connected with the collector electrode of triode Q1 after resistance R2, positive pole is connected with the base stage of triode Q1, the electric capacity C1 of minus earth, one end is connected with the emitter of triode Q1, the resistance R3 of other end ground connection, and the electric capacity C2 between the emitter and collector being serially connected in triode Q1 forms; Between the base stage that the two ends of described oscillistor T are serially connected in triode Q1 and collector electrode, the base stage of triode Q2 is connected with triode Q1 collector electrode, grounded emitter, collector electrode are then connected with micro-processor interface circuit, and resistance R1 is connected with micro-processor interface circuit with external power source with the tie point of resistance R2 simultaneously.
3. the voltage controlled oscillator of a kind of high stability according to claim 2, is characterized in that: described microprocessor comprises resistance R4, resistance R5, resistance R6, and triode Q3; One end of resistance R4 is connected with the collector electrode of triode Q3, other end ground connection after resistance R5, and one end of resistance R6 is connected with the emitter of triode Q3, other end ground connection; The base stage of described triode Q3 is connected with the tie point of resistance R5 with resistance R4 with the collector electrode of triode Q2 simultaneously, its collector electrode is then connected with the tie point of resistance R2 with resistance R1, its emitter is also connected with amplifying circuit.
4. the voltage controlled oscillator of a kind of high stability according to claim 3, it is characterized in that: described amplifying circuit is by triode Q4, triode Q5, negative pole is connected with the emitter of triode Q3, the electric capacity C3 that positive pole is connected with the base stage of triode Q4 after resistance R7, one end is connected with the base stage of triode Q4, the resistance R11 that the other end is then connected with the emitter of triode Q5 after resistance R12, one end is connected with the base stage of triode Q4, the resistance R10 that the other end is connected with the emitter of triode Q5, negative pole is connected with the emitter of triode Q5, the electric capacity C5 that positive pole is connected with the collector electrode of triode Q5 after resistance R13, positive pole is connected with the collector electrode of triode Q5, the electric capacity C4 of minus earth, one end is connected with the base stage of triode Q5, the resistance R8 that the other end is connected with the collector electrode of triode Q5, and form with the resistance R9 that resistance R8 is in parallel, the collector electrode of described triode Q4 is connected with the base stage of triode Q5, grounded emitter, and the collector electrode of triode Q5 is connected with the negative pole of electric capacity C6, and the positive pole of electric capacity C5 is connected with the emitter of triode Q6.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420698921.5U CN204316487U (en) | 2014-11-19 | 2014-11-19 | A kind of voltage controlled oscillator of high stability |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420698921.5U CN204316487U (en) | 2014-11-19 | 2014-11-19 | A kind of voltage controlled oscillator of high stability |
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| CN204316487U true CN204316487U (en) | 2015-05-06 |
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| CN201420698921.5U Expired - Fee Related CN204316487U (en) | 2014-11-19 | 2014-11-19 | A kind of voltage controlled oscillator of high stability |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104901689A (en) * | 2014-11-19 | 2015-09-09 | 成都冠深科技有限公司 | High-stability voltage-controlled oscillator based on pulse amplification trigger circuit |
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2014
- 2014-11-19 CN CN201420698921.5U patent/CN204316487U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104901689A (en) * | 2014-11-19 | 2015-09-09 | 成都冠深科技有限公司 | High-stability voltage-controlled oscillator based on pulse amplification trigger circuit |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150506 Termination date: 20151119 |
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| EXPY | Termination of patent right or utility model |