CN204316451U - Bi-directional amplifier circuit - Google Patents
Bi-directional amplifier circuit Download PDFInfo
- Publication number
- CN204316451U CN204316451U CN201520060553.6U CN201520060553U CN204316451U CN 204316451 U CN204316451 U CN 204316451U CN 201520060553 U CN201520060553 U CN 201520060553U CN 204316451 U CN204316451 U CN 204316451U
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- pass filter
- inductance
- circuit
- electric capacity
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Abstract
The utility model discloses a kind of bi-directional amplifier circuit, comprise input and output, this circuit is made up of high pass filter one, high pass filter two, low pass filter one, low pass filter two, forward amplifying circuit and reverse amplification circuit, one end of described high pass filter one connects input, and the other end connects one end of forward amplifying circuit; Described high pass filter two one end connects the other end of amplifying circuit, and the other end of high pass filter two connects output; One end of described low pass filter one connects input, and the other end connects one end of reverse amplification circuit, and one end of described low pass filter two connects the other end of reverse amplification circuit, and the other end of low pass filter two connects output.Lowpass band of the present utility model does not interfere with each other mutually with passband, no-self excitation, overcomes the defect of the signal amplifier function singleness of prior art, reduces production cost, improve economic benefit.
Description
Technical field
The utility model relates to Wired television signal amplifier technical field, particularly a kind of bi-directional amplifier circuit.
Background technology
The TV signal amplifiers of prior art is made up of forward amplifier and sign-changing amplifier two parts, but these two parts are independently circuit, and therefore, the TV signal amplifiers cost of prior art is high, and productivity effect is low.
Utility model content
(1) technical problem that will solve
The purpose of this utility model will overcome above-mentioned shortcoming exactly, aims to provide a kind of bi-directional amplifier circuit.
(2) technical scheme
For achieving the above object, bi-directional amplifier circuit of the present utility model, comprise input and output, it is characterized in that: this circuit is made up of high pass filter one, high pass filter two, low pass filter one, low pass filter two, forward amplifying circuit and reverse amplification circuit, one end of described high pass filter one connects input, and the other end connects one end of forward amplifying circuit; Described high pass filter two one end connects the other end of amplifying circuit, and the other end of high pass filter two connects output; One end of described low pass filter one connects input, and the other end connects one end of reverse amplification circuit, and one end of described low pass filter two connects the other end of reverse amplification circuit, and the other end of low pass filter two connects output.
Further, described forward amplifying circuit is made up of electric capacity C1, inductance L 1, amplifier U1, inductance L 2, inductance L 3, electric capacity C2 and inductance L 3, described electric capacity C1 one end connects high pass filter one, the other end connects the first end of inductance L 1, second end of described inductance L 1 connects the pin 1 of amplifier U1, the pin 2 of amplifier U1 connects the first end of inductance L 2, second end of inductance L 2 connects the first end of inductance L 4 and electric capacity C2, described inductance L 3 first end connects second end of electric capacity C2, and the second end of inductance L 3 connects high pass filter two.
Further, described reverse amplification circuit is made up of electric capacity C3, electric capacity C4, amplifier U2 and inductance L 5, described electric capacity C3 one end connects low pass filter one, the other end connects the pin 2 of inductance L 5 and amplifier U2, the pin 1 of described amplifier U2 connects one end of electric capacity C4, another termination low pass filter two of described electric capacity C4.
Further, this circuit is also provided with power supply, and described power supply connects inductance L 4 and inductance L 5.
(3) beneficial effect
Compared with prior art, the technical solution of the utility model has the following advantages: forward signal amplifier and reverse signal amplifier are combined, design the bi-directional amplifier circuit that lowpass band and passband mate mutually, lowpass band does not interfere with each other mutually with passband, no-self excitation, overcome the defect of the signal amplifier function singleness of prior art, reduce production cost, improve economic benefit.
Accompanying drawing explanation
Fig. 1 is the circuit theory diagrams of bi-directional amplifier circuit of the present utility model.
Embodiment
Below in conjunction with drawings and Examples, embodiment of the present utility model is described in further detail.Following examples for illustration of the utility model, but are not used for limiting scope of the present utility model.
As shown in Figure 1, bi-directional amplifier circuit of the present utility model, comprise input and output, it is characterized in that: this circuit is made up of high pass filter one, high pass filter two, low pass filter one, low pass filter two, forward amplifying circuit and reverse amplification circuit, one end of described high pass filter one connects input, and the other end connects one end of forward amplifying circuit; Described high pass filter two one end connects the other end of amplifying circuit, and the other end of high pass filter two connects output; One end of described low pass filter one connects input, and the other end connects one end of reverse amplification circuit, and one end of described low pass filter two connects the other end of reverse amplification circuit, and the other end of low pass filter two connects output.
Described forward amplifying circuit is made up of electric capacity C1, inductance L 1, amplifier U1, inductance L 2, inductance L 3, electric capacity C2 and inductance L 3, described electric capacity C1 one end connects high pass filter one, the other end connects the first end of inductance L 1, second end of described inductance L 1 connects the pin 1 of amplifier U1, the pin 2 of amplifier U1 connects the first end of inductance L 2, second end of inductance L 2 connects the first end of inductance L 4 and electric capacity C2, described inductance L 3 first end connects second end of electric capacity C2, and the second end of inductance L 3 connects high pass filter two.
Described reverse amplification circuit is made up of electric capacity C3, electric capacity C4, amplifier U2 and inductance L 5, described electric capacity C3 one end connects low pass filter one, the other end connects the pin 2 of inductance L 5 and amplifier U2, the pin 1 of described amplifier U2 connects one end of electric capacity C4, another termination low pass filter two of described electric capacity C4.
This circuit is also provided with power supply, and described power supply connects inductance L 4 and inductance L 5.For forward and reverse amplification circuit provide power supply.
In the present embodiment, forward amplifying circuit is the signal amplification that high pass filter carries out passband, the signal of lowpass band amplifies then has reverse amplification circuit to process, therefore, passband does not interfere with each other mutually with lowpass band, no-self excitation, and passband and lowpass band can perfectly mate, and circuit of the present utility model overcomes the defect of the signal amplifier function singleness of prior art, reduce production cost, improve economic benefit.
In sum, above-mentioned execution mode is not restricted execution mode of the present utility model, and the modification that all those skilled in the art carry out on the basis of flesh and blood of the present utility model or equivalent deformation, all at technology category of the present utility model.
Claims (4)
1. a bi-directional amplifier circuit, comprise input and output, it is characterized in that: this circuit is made up of high pass filter one, high pass filter two, low pass filter one, low pass filter two, forward amplifying circuit and reverse amplification circuit, one end of described high pass filter one connects input, and the other end connects one end of forward amplifying circuit; Described high pass filter two one end connects the other end of amplifying circuit, and the other end of high pass filter two connects output; One end of described low pass filter one connects input, and the other end connects one end of reverse amplification circuit, and one end of described low pass filter two connects the other end of reverse amplification circuit, and the other end of low pass filter two connects output.
2. bi-directional amplifier circuit as claimed in claim 1, it is characterized in that: described forward amplifying circuit is by electric capacity C1, inductance L 1, amplifier U1, inductance L 2, inductance L 3, electric capacity C2 and inductance L 3 form, described electric capacity C1 one end connects high pass filter one, the other end connects the first end of inductance L 1, second end of described inductance L 1 connects the pin 1 of amplifier U1, the pin 2 of amplifier U1 connects the first end of inductance L 2, second end of inductance L 2 connects the first end of inductance L 4 and electric capacity C2, described inductance L 3 first end connects second end of electric capacity C2, second end of inductance L 3 connects high pass filter two.
3. bi-directional amplifier circuit as claimed in claim 2, it is characterized in that: described reverse amplification circuit is made up of electric capacity C3, electric capacity C4, amplifier U2 and inductance L 5, described electric capacity C3 one end connects low pass filter one, the other end connects the pin 2 of inductance L 5 and amplifier U2, the pin 1 of described amplifier U2 connects one end of electric capacity C4, another termination low pass filter two of described electric capacity C4.
4. bi-directional amplifier circuit as claimed in claim 3, is characterized in that: this circuit is also provided with power supply, and described power supply connects inductance L 4 and inductance L 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520060553.6U CN204316451U (en) | 2015-01-28 | 2015-01-28 | Bi-directional amplifier circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520060553.6U CN204316451U (en) | 2015-01-28 | 2015-01-28 | Bi-directional amplifier circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204316451U true CN204316451U (en) | 2015-05-06 |
Family
ID=53138745
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520060553.6U Expired - Fee Related CN204316451U (en) | 2015-01-28 | 2015-01-28 | Bi-directional amplifier circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204316451U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105680906A (en) * | 2016-03-25 | 2016-06-15 | 苏州市职业大学 | Broadcast television network broadband bilateral amplifier |
| CN108768313A (en) * | 2018-05-24 | 2018-11-06 | 大连海事大学 | A kind of two-way amplifier based on negative group delay circuitry |
-
2015
- 2015-01-28 CN CN201520060553.6U patent/CN204316451U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105680906A (en) * | 2016-03-25 | 2016-06-15 | 苏州市职业大学 | Broadcast television network broadband bilateral amplifier |
| CN108768313A (en) * | 2018-05-24 | 2018-11-06 | 大连海事大学 | A kind of two-way amplifier based on negative group delay circuitry |
| CN108768313B (en) * | 2018-05-24 | 2021-07-27 | 大连海事大学 | Two-way amplifier based on negative group delay circuit |
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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: 20150506 Termination date: 20210128 |