CN204190705U - A kind of voltage controlled oscillator - Google Patents
A kind of voltage controlled oscillator Download PDFInfo
- Publication number
- CN204190705U CN204190705U CN201420635907.0U CN201420635907U CN204190705U CN 204190705 U CN204190705 U CN 204190705U CN 201420635907 U CN201420635907 U CN 201420635907U CN 204190705 U CN204190705 U CN 204190705U
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- China
- Prior art keywords
- triode
- resistance
- collector electrode
- base stage
- emitter
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Abstract
The utility model discloses a kind of voltage controlled oscillator, it is characterized in that: by oscillating circuit, the micro-process treatment circuit be connected with oscillating circuit, and the signal amplification circuit be connected with micro-processor interface circuit forms; 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 polar capacitor C1 of minus earth, and one end is connected with the emitter of triode Q1, the resistance R3 of other end ground connection.The utility model structure is simple, and production cost is low.
Description
Technical field
The utility model relates to a kind of circuit, specifically refers to a kind of voltage controlled oscillator.
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 complex structure of current voltage controlled oscillator, thus add the production cost of voltage controlled oscillator, do not meet instantly energy-conservation theory.
Utility model content
The purpose of this utility model is to overcome the baroque defect of current voltage controlled oscillator, provides a kind of structure simple and voltage controlled oscillator of good performance.
The following technical scheme of the purpose of this utility model realizes: a kind of voltage controlled oscillator, by oscillating circuit, and the micro-process treatment circuit be connected with oscillating circuit, and the signal amplification circuit be connected with micro-processor interface circuit forms; 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 polar capacitor C1 of minus earth, one end is connected with the emitter of triode Q1, the resistance R3 of other end ground connection, and the polar capacitor 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 microprocessor with external power source with the tie point of resistance R2 simultaneously.
Further, 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 collector electrode of triode Q2, 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 polar capacitor 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 polar capacitor 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 other end ground connection, 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.
The utility model compared with prior art, has the following advantages and beneficial effect:
(1) the utility model overall structure is very simple, saves production cost.
(2) adopt the utility model to be provided with amplifying circuit, make 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, voltage controlled oscillator of the present utility model, by oscillating circuit, the micro-process treatment circuit be connected with oscillating circuit, and the signal amplification circuit be connected with micro-processor interface circuit forms.
This oscillating circuit is for generation of electromagnetic wave, and it is by the oscillistor T as electromagnetic wave generator, triode Q1, triode Q2, resistance R1, resistance R2, resistance R3, electric capacity C1, electric capacity C2, composition.One end of resistance R1 is connected with the base stage of triode Q1, the other end is connected with the collector electrode of triode Q1 after resistance R2, the positive pole of polar capacitor C1 is connected with the base stage of triode Q1, minus earth, one end of resistance R3 is connected with the emitter of triode Q1, other end ground connection, and polar capacitor C2 is serially connected between the emitter and collector of triode Q1.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 microprocessor with external power source with the tie point of resistance R2 simultaneously.
Microprocessor processes the electromagnetic wave that oscillating circuit produces, and it 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 collector electrode of triode Q2, its collector electrode is then connected with the tie point of resistance R2 with resistance R1, its emitter is also connected with amplifying circuit.This triode Q3 can be used as buffer and uses.
Amplifying circuit is by triode Q4, triode Q5, negative pole is connected with the emitter of triode Q3, the polar capacitor 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 polar capacitor 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 other end ground connection, 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.After amplifying circuit process, the signal exported is more clear.
As mentioned above, just well the utility model can be realized.
Claims (3)
1. a voltage controlled oscillator, is characterized in that: by oscillating circuit, the micro-process treatment circuit be connected with oscillating circuit, and the signal amplification circuit be connected with micro-processor interface circuit forms; 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 polar capacitor C1 of minus earth, one end is connected with the emitter of triode Q1, the resistance R3 of other end ground connection, and the polar capacitor 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, its grounded emitter, and its collector electrode is then connected with micro-processor interface circuit, and resistance R1 is connected with microprocessor with external power source with the tie point of resistance R2 simultaneously.
2. a kind of voltage controlled oscillator according to claim 1, 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 simultaneously with the collector electrode of triode Q2 and resistance R4 is connected with the tie point of resistance R5, its collector electrode is then connected with the tie point of resistance R2 with resistance R1, its emitter is also connected with amplifying circuit.
3. a kind of voltage controlled oscillator according to claim 2, 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 polar capacitor 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 polar capacitor 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 other end ground connection, 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, its grounded emitter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420635907.0U CN204190705U (en) | 2014-10-29 | 2014-10-29 | A kind of voltage controlled oscillator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420635907.0U CN204190705U (en) | 2014-10-29 | 2014-10-29 | A kind of voltage controlled oscillator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204190705U true CN204190705U (en) | 2015-03-04 |
Family
ID=52622674
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420635907.0U Expired - Fee Related CN204190705U (en) | 2014-10-29 | 2014-10-29 | A kind of voltage controlled oscillator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204190705U (en) |
-
2014
- 2014-10-29 CN CN201420635907.0U patent/CN204190705U/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 |
Granted publication date: 20150304 Termination date: 20151029 |
|
| EXPY | Termination of patent right or utility model |