CN204810245U - Low -frequency oscillation signal generator circuit - Google Patents
Low -frequency oscillation signal generator circuit Download PDFInfo
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- CN204810245U CN204810245U CN201520546623.9U CN201520546623U CN204810245U CN 204810245 U CN204810245 U CN 204810245U CN 201520546623 U CN201520546623 U CN 201520546623U CN 204810245 U CN204810245 U CN 204810245U
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- signal generator
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Abstract
The utility model provides a low -frequency oscillation signal generator circuit, including 12V DC power supply V1, the anodal of DC power supply V1 is connected with switch S1's one end, switch S1's the other end and triode Q3's collecting electrode, resistance R2's one end, resistance R1's one end, resistance R8's one end is connected, triode Q3's base and triode Q2's collecting electrode, resistance R3's one end is connected, resistance R3's the other end is connected with resistance R2's the other end and electric capacity C8's one end, electric capacity C8's the other end and triode Q4's collecting electrode, resistance R4's one end, electric capacity C9's one end and resistance R16's one end are connected, the utility model discloses circuit structure is simple relatively, and the cost is lower.
Description
Technical field
The utility model relates to circuit field, particularly relates to a kind of oscillating signal generator circuit.
Background technology
Existing oscillating signal circuit for generating complex structure, not easily use, cost is high.
Summary of the invention
The technical problems to be solved in the utility model, is to provide a kind of oscillating signal generator circuit, solves oscillating signal circuit for generating complex structure, not easily uses, the problem that cost is high.
The utility model is achieved in that a kind of oscillating signal generator circuit, comprises 12V DC power supply V1, and the positive pole of DC power supply V1 is connected with one end of switch S 1, the other end of switch S 1 and the collector electrode of triode Q3, one end of resistance R2, one end of resistance R1, one end of resistance R8 connects, the base stage of triode Q3 and the collector electrode of triode Q2, one end of resistance R3 connects, and the other end of resistance R3 is connected with one end of the other end of resistance R2 and electric capacity C8, the other end of electric capacity C8 and the collector electrode of triode Q4, one end of resistance R4, one end of electric capacity C9 is connected with one end of resistance R16, and the other end of electric capacity C9 is held with new number of output and is connected, and the other end of resistance R4 is connected with the emitter of triode Q3, the base stage of triode Q4 and the emitter of triode Q2, one end of resistance R14 connects, and the emitter of triode Q4 is connected with one end of resistance R15, and the other end of resistance R16 is connected with one end of one end of electric capacity C7 and variable resistor R13, the other end of variable resistor R13 and one end of resistance R12, the base stage of triode Q2 is connected with one end of electric capacity C1, the other end of electric capacity C1 is connected with the other end of the collector electrode of triode Q1 and resistance R1, the base stage of triode Q1 is connected with one end of one end of electric capacity C4 and resistance R7, the other end of electric capacity C4 and one end of resistance R6, one end of resistance R5, one end of electric capacity C3 connects, and the other end of resistance R6 is connected with one end of electric capacity C2, the other end of electric capacity C2 and one end of electric capacity C5, one end of resistance R10 is connected with the emitter of triode Q1, the other end of electric capacity C5 and the other end of resistance R7, the other end of resistance R8, one end of resistance R9 connects, and the other end of resistance R10 is connected with one end of one end of resistance R11 and electric capacity C6, the negative pole of DC power supply V1 and the other end of resistance R5, the other end of resistance R9, the other end of resistance R11, the other end of resistance R12, the other end of resistance R14, the other end of resistance R15, the other end of electric capacity C3, the other end of electric capacity C6, the other end of electric capacity C7 connects.
The utility model tool has the following advantages: circuit structure is relatively simple, and cost is lower.
Accompanying drawing explanation
Fig. 1 is circuit diagram of the present utility model.
Embodiment
By describing technology contents of the present utility model, structural feature in detail, realized object and effect, accompanying drawing is coordinated to be explained in detail below in conjunction with execution mode.
Refer to Fig. 1, the utility model provides a kind of oscillating signal generator circuit, comprises 12V DC power supply V1, and the positive pole of DC power supply V1 is connected with one end of switch S 1, the other end of switch S 1 and the collector electrode of triode Q3, one end of resistance R2, one end of resistance R1, one end of resistance R8 connects, the base stage of triode Q3 and the collector electrode of triode Q2, one end of resistance R3 connects, and the other end of resistance R3 is connected with one end of the other end of resistance R2 and electric capacity C8, the other end of electric capacity C8 and the collector electrode of triode Q4, one end of resistance R4, one end of electric capacity C9 is connected with one end of resistance R16, and the other end of electric capacity C9 is held with new number of output and is connected, and the other end of resistance R4 is connected with the emitter of triode Q3, the base stage of triode Q4 and the emitter of triode Q2, one end of resistance R14 connects, and the emitter of triode Q4 is connected with one end of resistance R15, and the other end of resistance R16 is connected with one end of one end of electric capacity C7 and variable resistor R13, the other end of variable resistor R13 and one end of resistance R12, the base stage of triode Q2 is connected with one end of electric capacity C1, the other end of electric capacity C1 is connected with the other end of the collector electrode of triode Q1 and resistance R1, the base stage of triode Q1 is connected with one end of one end of electric capacity C4 and resistance R7, the other end of electric capacity C4 and one end of resistance R6, one end of resistance R5, one end of electric capacity C3 connects, and the other end of resistance R6 is connected with one end of electric capacity C2, the other end of electric capacity C2 and one end of electric capacity C5, one end of resistance R10 is connected with the emitter of triode Q1, the other end of electric capacity C5 and the other end of resistance R7, the other end of resistance R8, one end of resistance R9 connects, and the other end of resistance R10 is connected with one end of one end of resistance R11 and electric capacity C6, the negative pole of DC power supply V1 and the other end of resistance R5, the other end of resistance R9, the other end of resistance R11, the other end of resistance R12, the other end of resistance R14, the other end of resistance R15, the other end of electric capacity C3, the other end of electric capacity C6, the other end of electric capacity C7 connects.
Wherein, in this low frequency generator, RC frequency selection circuit frequency of oscillation is by R5, R6 and C2, and C3 determines jointly.Shown in Fig. 1, frequency is 1/ (6.28x150kx510pf)=2KHz.6.28 be 2 π, 150K is resistance, and 510pf is electric capacity, formula f=1/ (2* π * R*C), changes the numerical value of R and C, can obtain different frequencies of oscillation
Q1 and Q2 is two-stage amplifying circuit, and the collector voltage of Q1 provides base bias for Q2.Q3, Q4 are darlington structures, and multiplication factor is high.R5, R6 C2 C3 form voltage positive feedback frequency-selective network; Adjusting resistance R13 can adjust the base bias bleeder of Q2, changes Q2 amplification coefficient, and then changes the amplitude of output signal.This circuit is simply effective, vibrates easily and waveform stabilization.
The foregoing is only embodiment of the present utility model; not thereby scope of patent protection of the present utility model is limited; every utilize the utility model specification and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.
Claims (1)
1. an oscillating signal generator circuit, is characterized in that: comprise 12V DC power supply V1, and the positive pole of DC power supply V1 is connected with one end of switch S 1, the other end of switch S 1 and the collector electrode of triode Q3, one end of resistance R2, one end of resistance R1, one end of resistance R8 connects, the base stage of triode Q3 and the collector electrode of triode Q2, one end of resistance R3 connects, and the other end of resistance R3 is connected with one end of the other end of resistance R2 and electric capacity C8, the other end of electric capacity C8 and the collector electrode of triode Q4, one end of resistance R4, one end of electric capacity C9 is connected with one end of resistance R16, and the other end of electric capacity C9 is held with new number of output and is connected, and the other end of resistance R4 is connected with the emitter of triode Q3, the base stage of triode Q4 and the emitter of triode Q2, one end of resistance R14 connects, and the emitter of triode Q4 is connected with one end of resistance R15, and the other end of resistance R16 is connected with one end of one end of electric capacity C7 and variable resistor R13, the other end of variable resistor R13 and one end of resistance R12, the base stage of triode Q2 is connected with one end of electric capacity C1, the other end of electric capacity C1 is connected with the other end of the collector electrode of triode Q1 and resistance R1, the base stage of triode Q1 is connected with one end of one end of electric capacity C4 and resistance R7, the other end of electric capacity C4 and one end of resistance R6, one end of resistance R5, one end of electric capacity C3 connects, and the other end of resistance R6 is connected with one end of electric capacity C2, the other end of electric capacity C2 and one end of electric capacity C5, one end of resistance R10 is connected with the emitter of triode Q1, the other end of electric capacity C5 and the other end of resistance R7, the other end of resistance R8, one end of resistance R9 connects, and the other end of resistance R10 is connected with one end of one end of resistance R11 and electric capacity C6, the negative pole of DC power supply V1 and the other end of resistance R5, the other end of resistance R9, the other end of resistance R11, the other end of resistance R12, the other end of resistance R14, the other end of resistance R15, the other end of electric capacity C3, the other end of electric capacity C6, the other end of electric capacity C7 connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520546623.9U CN204810245U (en) | 2015-07-25 | 2015-07-25 | Low -frequency oscillation signal generator circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520546623.9U CN204810245U (en) | 2015-07-25 | 2015-07-25 | Low -frequency oscillation signal generator circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204810245U true CN204810245U (en) | 2015-11-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520546623.9U Expired - Fee Related CN204810245U (en) | 2015-07-25 | 2015-07-25 | Low -frequency oscillation signal generator circuit |
Country Status (1)
| Country | Link |
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| CN (1) | CN204810245U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111629479A (en) * | 2020-06-11 | 2020-09-04 | 深圳市蓝丝腾科技有限公司 | Power supply for 5G intelligent street lamp |
-
2015
- 2015-07-25 CN CN201520546623.9U patent/CN204810245U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111629479A (en) * | 2020-06-11 | 2020-09-04 | 深圳市蓝丝腾科技有限公司 | Power supply for 5G intelligent street lamp |
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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: 20151125 Termination date: 20160725 |