CN104467720A - Computer network signal gain controller - Google Patents
Computer network signal gain controller Download PDFInfo
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- CN104467720A CN104467720A CN201410616209.0A CN201410616209A CN104467720A CN 104467720 A CN104467720 A CN 104467720A CN 201410616209 A CN201410616209 A CN 201410616209A CN 104467720 A CN104467720 A CN 104467720A
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- resistor
- triode
- network signal
- effect transistor
- field effect
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- 230000005669 field effect Effects 0.000 claims abstract description 37
- 239000003990 capacitor Substances 0.000 claims abstract description 20
- 108060009362 VPS41 Proteins 0.000 description 8
- 238000010586 diagram Methods 0.000 description 1
Abstract
The invention discloses a computer network signal gain controller. The computer network signal gain controller comprises a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a seventh resistor, an eighth resistor, a ninth resistor, a tenth resistor, a first triode, a second triode, a third triode, a fourth triode, a potentiometer, a first capacitor, a second capacitor, a first field-effect tube and a second field-effect tube. An input signal voltage is converted into current through the first triode and the second triode, then converted into voltage through the third triode and the fourth triode and further amplified and output through the first field-effect tube and the second field-effect tube to drive a load. The first resistor converts the output voltage into current and adds the current to the emitting electrode of the second field-effect tube to form current negative feedback. Thus, the current passing through the seventh resistor is the difference of the current of the second field-effect tube and the feedback current. Compared with the prior art, the computer network signal gain controller has the advantages that the gain of a network signal can be increased, the network signal can be amplified, the strength of the network signal can be improved, Internet surfing of a computer can be more stable, the Internet speed can be increased, using is convenient, and the number of the adopted electronic devices is small, and the computer network signal gain controller is popularized more easily.
Description
Technical field
The present invention relates to a kind of area of computer aided circuit, particularly relate to a kind of computer network signal gain controller.
Background technology
Computer obtains popularization and application widely in the current epoch, as everyone knows, computer room needs to use network signal, perfectly can play the ability of computer, but in prior art, the network signal of computer is general partially slow, because the attenuation ratio of network signal is larger, therefore, a kind of birth that can reduce the device of network signal decay is needed.
Summary of the invention
Object of the present invention is just to provide a kind of computer network signal gain controller to solve the problem.
The present invention is achieved through the following technical solutions above-mentioned purpose:
The present invention includes the first resistor to the tenth resistor, first triode is to the 4th triode, potentiometer, first capacitor, second capacitor, first field effect transistor and the second field effect transistor, the first end of described potentiometer is as the signal input part of described signal amplifier, second end of described potentiometer is connected rear also ground connection with the first end of described 7th resistor, the sliding end of described potentiometer respectively with the first end of described second resistor and the first end of described 3rd resistor, second end of described second resistor is connected with the base stage of described first triode, the emitter of described first triode is connected with the first end of described 4th resistor and the base stage of described 3rd triode respectively, second end of described 4th resistor respectively with the collector electrode of described second triode, the first end of described 5th resistor, the source electrode of described first field effect transistor is connected with the first end of described first capacitor and as the positive source input of described signal amplifier, second end ground connection of described first capacitor, second end of described 5th resistor is connected with the first end of described 6th resistor and the collector electrode of described 3rd triode respectively, second end of described 6th resistor is connected with the grid of described first field effect transistor respectively, the emitter of described 3rd triode respectively with the emitter of described 4th triode, second end of described 7th resistor is connected with the first end of described first resistor, second end of described 3rd resistor is connected with the base stage of described second triode, the emitter of described second triode is connected with the base stage of described 4th triode and the first end of described 8th resistor respectively, second end of described 8th resistor respectively with the collector electrode of described first triode, the first end of described 9th resistor, the source electrode of described second field effect transistor is connected with the first end of described second capacitor and as the power cathode input of described signal amplifier, second end ground connection of described second capacitor, the collector electrode of described 4th triode is connected with the second end of described 9th resistor and the first end of described tenth resistor respectively, second end of described tenth resistor is connected with the grid of described second field effect transistor, the drain electrode of described second field effect transistor is connected with the drain electrode of described first field effect transistor and the second end of described first resistor and respectively as the signal output part of described signal amplifier.
Beneficial effect of the present invention is:
The present invention is a kind of computer network signal gain controller, compared with prior art, the present invention can improve the gain of network signal, network signal is amplified, improves the intensity of network signal, make computer internet more stable, network speed can also be improved, easy to use, adopt electronic devices and components few, be more conducive to universal and promote.
Accompanying drawing explanation
Fig. 1 is circuit structure schematic diagram of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described:
As shown in Figure 1: the present invention includes the first resistor R1 to the tenth resistor R10, first triode VT1 is to the 4th triode VT4, potentiometer RP, first capacitor C1, second capacitor C2, first field effect transistor FET1, second field effect transistor FET2, the first end of potentiometer RP is as the signal input part of signal amplifier, second end of potentiometer RP is connected rear also ground connection with the first end of the 7th resistor R7, the sliding end of potentiometer RP respectively with the first end of the second resistor R2 and the first end of the 3rd resistor R3, second end of the second resistor R2 is connected with the base stage of the first triode VT1, the emitter of the first triode VT1 is connected with the first end of the 4th resistor R4 and the base stage of the 3rd triode VT3 respectively, second end of the 4th resistor R4 respectively with the collector electrode of the second triode VT2, the first end of the 5th resistor R5, the source electrode of the first field effect transistor FET1 is connected with the first end of the first capacitor C1 and as the positive source input of signal amplifier, the second end ground connection of the first capacitor C1, second end of the 5th resistor R5 is connected with the first end of the 6th resistor R6 and the collector electrode of the 3rd triode VT3 respectively, second end of the 6th resistor R6 is connected with the grid of the first field effect transistor FET1 respectively, the emitter of the 3rd triode VT3 respectively with the emitter of the 4th triode VT4, second end of the 7th resistor R7 is connected with the first end of the first resistor R1, second end of the 3rd resistor R3 is connected with the base stage of the second triode VT2, the emitter of the second triode VT2 is connected with the base stage of the 4th triode VT4 and the first end of the 8th resistor R8 respectively, second end of the 8th resistor R8 respectively with the collector electrode of the first triode VT1, the first end of the 9th resistor R9, the source electrode of the second field effect transistor FET2 is connected with the first end of the second capacitor C2 and as the power cathode input of signal amplifier, the second end ground connection of the second capacitor C2, the collector electrode of the 4th triode VT4 is connected with second end of the 9th resistor R9 and the first end of the tenth resistor R10 respectively, second end of the tenth resistor R10 is connected with the grid of the second field effect transistor FET2, the drain electrode of the second field effect transistor FET2 is connected with the drain electrode of the first field effect transistor FET1 and second end of the first resistor R1 and respectively as the signal output part of signal amplifier.
Operation principle of the present invention is as follows:
As shown in Figure 1: network input signal voltage converts electric current to through the first triode VT1 and the second triode VT2, convert voltage to by the 3rd triode VT3 and the 4th triode VT4 again, then amplify output driving load further through the first field effect transistor FET1 and the second field effect transistor FET2.After first resistance R1 converts output voltage to electric current, the emitter being added to the second field effect transistor FET2 forms Current Negative Three-Point Capacitance.Thus the electric current the 7th resistance R7 flow through is the electric current of the second field effect transistor FET2 and the difference of feedback current.Realize the gain amplifier of signal thus, improve signal strength signal intensity.
Component parameter of the present invention is selected as follows:
First resistor R1 is 100 Ω, second resistor R2 is 400 Ω, 3rd resistor R3 is 500 Ω, 4th resistor R4 is 2k Ω, 5th resistor R5 is 27k Ω, 6th resistor R6 is 200 Ω to the 8th resistor R8, 9th resistor R9 is 479 Ω, tenth resistor R10 is 5.5k Ω, first triode VT1 is the PNP type triode of 0.5V to the 4th triode VT4, potentiometer RP is 470k Ω, first electric capacity C1 is 300uf, second electric capacity C2 is 470uf, first field effect transistor FET1 and the second field effect transistor FET2 is the field effect transistor of model K1056.
Claims (1)
1. a computer network signal gain controller, it is characterized in that: comprise the first resistor to the tenth resistor, first triode is to the 4th triode, potentiometer, first capacitor, second capacitor, first field effect transistor and the second field effect transistor, the first end of described potentiometer is as the signal input part of described signal amplifier, second end of described potentiometer is connected rear also ground connection with the first end of described 7th resistor, the sliding end of described potentiometer respectively with the first end of described second resistor and the first end of described 3rd resistor, second end of described second resistor is connected with the base stage of described first triode, the emitter of described first triode is connected with the first end of described 4th resistor and the base stage of described 3rd triode respectively, second end of described 4th resistor respectively with the collector electrode of described second triode, the first end of described 5th resistor, the source electrode of described first field effect transistor is connected with the first end of described first capacitor and as the positive source input of described signal amplifier, second end ground connection of described first capacitor, second end of described 5th resistor is connected with the first end of described 6th resistor and the collector electrode of described 3rd triode respectively, second end of described 6th resistor is connected with the grid of described first field effect transistor respectively, the emitter of described 3rd triode respectively with the emitter of described 4th triode, second end of described 7th resistor is connected with the first end of described first resistor, second end of described 3rd resistor is connected with the base stage of described second triode, the emitter of described second triode is connected with the base stage of described 4th triode and the first end of described 8th resistor respectively, second end of described 8th resistor respectively with the collector electrode of described first triode, the first end of described 9th resistor, the source electrode of described second field effect transistor is connected with the first end of described second capacitor and as the power cathode input of described signal amplifier, second end ground connection of described second capacitor, the collector electrode of described 4th triode is connected with the second end of described 9th resistor and the first end of described tenth resistor respectively, second end of described tenth resistor is connected with the grid of described second field effect transistor, the drain electrode of described second field effect transistor is connected with the drain electrode of described first field effect transistor and the second end of described first resistor and respectively as the signal output part of described signal amplifier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410616209.0A CN104467720A (en) | 2014-11-05 | 2014-11-05 | Computer network signal gain controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410616209.0A CN104467720A (en) | 2014-11-05 | 2014-11-05 | Computer network signal gain controller |
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| Publication Number | Publication Date |
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| CN104467720A true CN104467720A (en) | 2015-03-25 |
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| CN201410616209.0A Pending CN104467720A (en) | 2014-11-05 | 2014-11-05 | Computer network signal gain controller |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107124206A (en) * | 2017-04-28 | 2017-09-01 | 陕西理工大学 | A kind of computer network signal processor |
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2014
- 2014-11-05 CN CN201410616209.0A patent/CN104467720A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107124206A (en) * | 2017-04-28 | 2017-09-01 | 陕西理工大学 | A kind of computer network signal processor |
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Application publication date: 20150325 |