CN203522664U - Tone control circuit - Google Patents
Tone control circuit Download PDFInfo
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- CN203522664U CN203522664U CN201320711385.3U CN201320711385U CN203522664U CN 203522664 U CN203522664 U CN 203522664U CN 201320711385 U CN201320711385 U CN 201320711385U CN 203522664 U CN203522664 U CN 203522664U
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- resistance
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- triode
- polarity free
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Abstract
The utility model discloses a tone control circuit comprising first to fourth polar capacitors, first to fourth non-polar capacitors, first to tenth resistors, a first triode, a second triode, a first adjustable resistor, a second adjustable resistor and a DC power supply. An input filter circuit is formed by the first polar capacitor and the first resistor. An emitter follower circuit is formed by the second polar capacitor, the second resistor and the first triode. A bass control circuit is formed by the third to the fifth resistors, the first adjustable resistor and the second non-polar capacitor. A high pitch control circuit is formed by the first non-polar capacitor, the third non-polar capacitor, the second adjustable resistor and the sixth resistor. The tone control circuit is simple in circuit structure, high in reliability, wide in adjusting and control range, low in noise and low in distortion. According to the tone control circuit, mid-voice is not obviously changed in amplitude in the processing of adjusting strength of high pitch and bass so that the tone control circuit is great in circuit performance.
Description
Technical field
The utility model relates to a kind of tone control circuit, relates in particular to the little tone control circuit of a kind of low noise distortion.
Background technology
The frequency characteristic of electronic circuit is owing to there being impedance component in circuit, in fact the signal of inputting in radio communication, radio and television and other multiple electronic systems is not single frequency yet, all contain multi-frequency, cause many parameters of amplifying circuit to be the function of frequency.Tone control circuit is the frequency characteristic principle of utilizing electronic circuit, for adjust tone color in good time, makes it to meet various audition requirement, is used for compensating the recording defect of source of sound or the frequency response of audio amplifier etc.Current tone control circuit noise is higher, and distortion is larger.
Utility model content
The purpose of this utility model provides a kind of low noise distortion little tone control circuit with regard to being in order to address the above problem.
The utility model is achieved through the following technical solutions above-mentioned purpose:
A kind of tone control circuit described in the utility model, comprises the first polar capacitor, the second polar capacitor, the 3rd polar capacitor, quadripolarity electric capacity, the first polarity free capacitor, the second polarity free capacitor, the 3rd polarity free capacitor, the 4th polarity free capacitor, the first resistance, the second resistance, the 3rd resistance, the 4th resistance, the 5th resistance, the 6th resistance, the 7th resistance, the 8th resistance, the 9th resistance, the tenth resistance, the first triode, the second triode, the first adjustable resistance, the second adjustable resistance and DC power supply, the positive pole of described the first polar capacitor is as the signal input part of described tone control circuit, the negative pole of described the first polar capacitor simultaneously with the first end of described the first resistance, the base stage of described the first triode connects, the emitter while of described the first triode and the positive pole of described the first polar capacitor, the first end of described the second resistance connects, the negative pole while of described the second polar capacitor and the first end of described the second polarity free capacitor, the first end of described the 3rd resistance connects, the second end while of described the 3rd resistance and the first end of described the second polarity free capacitor, the first end of described the first adjustable resistance binding post connects, the second end while of described the first polarity free capacitor and the first end of described the 4th resistance, the second end of described the first adjustable resistance binding post connects, and the sliding end of described the first adjustable resistance is connected with the first end of described the 5th resistance, the second end while of described the 5th resistance and the positive pole of described the 3rd polar capacitor, the first end of described the 6th resistance connects, the second end of described the 6th resistance is connected with the sliding end of described the second adjustable resistance, the second end of described the first polarity free capacitor is connected with the first end of described the second adjustable resistance binding post, the second end of described the second adjustable resistance binding post is connected with the first end of described the 3rd polarity free capacitor, the second end while of described the 3rd polarity free capacitor and the second end of described the 4th resistance, the positive pole of described quadripolarity electric capacity connects, the negative pole while of described the 3rd polar capacitor and the first end of described the 7th resistance, the first end of described the 8th resistance, the base stage of described the second triode connects, the second end while of described the first resistance and the collector electrode of described the first triode, the second end of described the 7th resistance, the first end of described the 9th resistance, the positive pole of described DC power supply connects, the collector electrode while of described the second triode and the first end of described the 4th polarity free capacitor, the first end of described the tenth resistance connects, the second end while of described the second resistance and the second end of described the 8th resistance, the second end of described the 4th polarity free capacitor, the second end of described the tenth resistance, the negative pole of described DC power supply connects, the negative pole while of described quadripolarity electric capacity and the second end of described the 9th resistance, the emitter of described the second triode connects and as the signal output part of described tone control circuit.
The beneficial effects of the utility model are:
A kind of tone control circuit described in the utility model, circuit structure is simple, and reliability is high, regulates control range wide, and noise is low, and distortion is little.This tone control circuit, in the strong and weak process that regulates high pitch bass, can there is not obvious changes in amplitude in middle pitch, and circuit performance is good.
Accompanying drawing explanation
Fig. 1 is the circuit diagram of a kind of tone control circuit described in the utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail:
As shown in Figure 1, a kind of tone control circuit described in the utility model, comprises the first polar capacitor Cp1, the second polar capacitor Cp2, the 3rd polar capacitor Cp3, quadripolarity capacitor C p4, the first polarity free capacitor Co1, the second polarity free capacitor Co2, the 3rd polarity free capacitor Co3, the 4th polarity free capacitor Co4, the first resistance R 1, the second resistance R 2, the 3rd resistance R 3, the 4th resistance R 4, the 5th resistance R 5, the 6th resistance R 6, the 7th resistance R 7, the 8th resistance R 8, the 9th resistance R 9, the tenth resistance R 10, the first triode Q1, the second triode Q2, the first adjustable resistance RW1, the second adjustable resistance RW2 and DC power supply (VCC in figure), the positive pole of the first polar capacitor Cp1 is as the signal input part IN of tone control circuit, the negative pole of the first polar capacitor Cp1 simultaneously with the first end of the first resistance R 1, the base stage of the first triode Q1 connects, the emitter while of the first triode Q1 and the positive pole of the second polar capacitor Cp2, the first end of the second resistance R 2 connects, the negative pole while of the second polar capacitor Cp2 and the first end of the first polarity free capacitor Co1, the first end of the 3rd resistance R 3 connects, the second end while of the 3rd resistance R 3 and the first end of the second polarity free capacitor Co2, the first end of the first adjustable resistance RW1 binding post connects, the second end while of the first polarity free capacitor Co1 and the first end of the 4th resistance R 4, the second end of the first adjustable resistance RW1 binding post connects, and the sliding end of the first adjustable resistance RW1 is connected with the first end of the 5th resistance R 5, the second end while of the 5th resistance R 5 and the positive pole of the 3rd polar capacitor Cp3, the first end of the 6th resistance R 6 connects, the second end of the 6th resistance R 6 is connected with the sliding end of the second adjustable resistance RW2, the second end of the first polarity free capacitor Co1 is connected with the first end of the second adjustable resistance RW2 binding post, the second end of the second adjustable resistance RW2 binding post is connected with the first end of the 3rd polarity free capacitor Co3, the second end while of the 3rd polarity free capacitor Co3 and the second end of the 4th resistance R 4, the positive pole of quadripolarity capacitor C p4 connects, the negative pole while of the 3rd polar capacitor Cp3 and the first end of the 7th resistance R 7, the first end of the 8th resistance R 8, the base stage of the second triode Q2 connects, the second end while of the first resistance R 1 and the collector electrode of the first triode Q1, the second end of the 7th resistance R 7, the first end of the 9th resistance R 9, the positive pole of DC power supply connects, the collector electrode while of the second triode Q2 and the first end of the 4th polarity free capacitor Co4, the first end of the tenth resistance R 10 connects, the second end while of the second resistance R 2 and the second end of the 8th resistance R 8, the second end of the 4th polarity free capacitor Co4, the second end of the tenth resistance R 10, the negative pole of DC power supply connects, the negative pole while of quadripolarity capacitor C p4 and the second end of the 9th resistance R 9, the emitter of the second triode Q2 connects and as the signal output part OUT of tone control circuit.
A kind of tone control circuit described in the utility model, the first polar capacitor Cp1 and the first resistance R 1 form input filter circuit, and the second polar capacitor Cp2, the second resistance R 2 and the first triode Q1 form emitter follower circuit, can reduce the loss of signal.The 3rd resistance R 3, the 4th resistance R 4, the 5th resistance R 5, the first adjustable resistance RW1 and the second polarity free capacitor Co2 form bass control circuit, the first polarity free capacitor Co1, the 3rd polarity free capacitor Co3, the second adjustable resistance RW2 and the 6th resistance R 6 form high pitch control circuit, when being placed in centre position, exports the sliding end of the first adjustable resistance RW1 and the second adjustable resistance RW2 middle pitch, regulate the first adjustable resistance RW1 and the second adjustable resistance RW2 to control the output of high pitch bass, can there is not obvious variation in middle pitch, circuit performance is good.
Claims (1)
1. a tone control circuit, is characterized in that: comprise the first polar capacitor, the second polar capacitor, the 3rd polar capacitor, quadripolarity electric capacity, the first polarity free capacitor, the second polarity free capacitor, the 3rd polarity free capacitor, the 4th polarity free capacitor, the first resistance, the second resistance, the 3rd resistance, the 4th resistance, the 5th resistance, the 6th resistance, the 7th resistance, the 8th resistance, the 9th resistance, the tenth resistance, the first triode, the second triode, the first adjustable resistance, the second adjustable resistance and DC power supply, the positive pole of described the first polar capacitor is as the signal input part of described tone control circuit, the negative pole of described the first polar capacitor simultaneously with the first end of described the first resistance, the base stage of described the first triode connects, the emitter while of described the first triode and the positive pole of described the first polar capacitor, the first end of described the second resistance connects, the negative pole while of described the second polar capacitor and the first end of described the second polarity free capacitor, the first end of described the 3rd resistance connects, the second end while of described the 3rd resistance and the first end of described the second polarity free capacitor, the first end of described the first adjustable resistance binding post connects, the second end while of described the first polarity free capacitor and the first end of described the 4th resistance, the second end of described the first adjustable resistance binding post connects, and the sliding end of described the first adjustable resistance is connected with the first end of described the 5th resistance, the second end while of described the 5th resistance and the positive pole of described the 3rd polar capacitor, the first end of described the 6th resistance connects, the second end of described the 6th resistance is connected with the sliding end of described the second adjustable resistance, the second end of described the first polarity free capacitor is connected with the first end of described the second adjustable resistance binding post, the second end of described the second adjustable resistance binding post is connected with the first end of described the 3rd polarity free capacitor, the second end while of described the 3rd polarity free capacitor and the second end of described the 4th resistance, the positive pole of described quadripolarity electric capacity connects, the negative pole while of described the 3rd polar capacitor and the first end of described the 7th resistance, the first end of described the 8th resistance, the base stage of described the second triode connects, the second end while of described the first resistance and the collector electrode of described the first triode, the second end of described the 7th resistance, the first end of described the 9th resistance, the positive pole of described DC power supply connects, the collector electrode while of described the second triode and the first end of described the 4th polarity free capacitor, the first end of described the tenth resistance connects, the second end while of described the second resistance and the second end of described the 8th resistance, the second end of described the 4th polarity free capacitor, the second end of described the tenth resistance, the negative pole of described DC power supply connects, the negative pole while of described quadripolarity electric capacity and the second end of described the 9th resistance, the emitter of described the second triode connects and as the signal output part of described tone control circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320711385.3U CN203522664U (en) | 2013-11-12 | 2013-11-12 | Tone control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320711385.3U CN203522664U (en) | 2013-11-12 | 2013-11-12 | Tone control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203522664U true CN203522664U (en) | 2014-04-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320711385.3U Expired - Fee Related CN203522664U (en) | 2013-11-12 | 2013-11-12 | Tone control circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203522664U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108341181A (en) * | 2017-12-29 | 2018-07-31 | 江阴市宇飞新型容器有限公司 | A kind of intelligent monitoring anti-leak oil storage tank |
-
2013
- 2013-11-12 CN CN201320711385.3U patent/CN203522664U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108341181A (en) * | 2017-12-29 | 2018-07-31 | 江阴市宇飞新型容器有限公司 | A kind of intelligent monitoring anti-leak oil storage tank |
| CN108341181B (en) * | 2017-12-29 | 2019-08-30 | 江阴市宇飞新型容器有限公司 | A kind of intelligent monitoring anti-leak oil storage tank |
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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: 20140402 Termination date: 20141112 |
|
| EXPY | Termination of patent right or utility model |