CN204316445U - Based on the bias current sources amplifier system of Linear Driving - Google Patents
Based on the bias current sources amplifier system of Linear Driving Download PDFInfo
- Publication number
- CN204316445U CN204316445U CN201420740492.3U CN201420740492U CN204316445U CN 204316445 U CN204316445 U CN 204316445U CN 201420740492 U CN201420740492 U CN 201420740492U CN 204316445 U CN204316445 U CN 204316445U
- Authority
- CN
- China
- Prior art keywords
- triode
- resistance
- pole
- base stage
- effect transistor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Abstract
The utility model discloses a kind of bias current sources amplifier system based on Linear Driving, primarily of field effect transistor Q1, negative pole is connected with the grid of field effect transistor Q1, positive pole is as the polar capacitor C1 of signal input part, one end is connected with the grid of field effect transistor Q1, the resistance R4 of other end ground connection, the current source circuit be connected with the source electrode of field effect transistor Q1, and amplifying circuit composition, it is characterized in that: between the drain electrode of scene effect pipe Q1 and amplifying circuit, be also connected with linear drive circuit; Described linear drive circuit by driving chip U, triode VT3, triode VT4, triode VT5, the compositions such as triode VT6.Linear drive circuit of the present utility model can be stable driving amplifier system, thus improvement amplifier amplification effect.
Description
Technical field
The utility model relates to electronic applications, specifically refers to a kind of bias current sources amplifier system based on Linear Driving.
Background technology
Amplifier is the circuit unit with very high-amplification-factor.In side circuit, usually jointly form certain functional module in conjunction with feedback network.Amplifier is the circuit unit that an angle from function is named, and can be realized, also can be implemented in the middle of semiconductor chip by discrete device.Along with the development of semiconductor technology, most amplifier exists with the form of single-chip.Along with the development of electronic technology, amplifier has been widely used in the middle of electron trade.But the amplifier used at present signal is amplified after through often there will be the situation of distorted signals, bring very large trouble to the follow-up process to signal.
Utility model content
The purpose of this utility model is to overcome the defect that distortion appears in current amplifier institute amplifying signal, provide a kind of can the distortionless bias current sources amplifier system based on Linear Driving that signal is amplified.
The following technical scheme of the purpose of this utility model realizes: based on the bias current sources amplifier system of Linear Driving, primarily of field effect transistor Q1, negative pole is connected with the grid of field effect transistor Q1, positive pole is as the polar capacitor C1 of signal input part, one end is connected with the grid of field effect transistor Q1, the resistance R4 of other end ground connection, the current source circuit be connected with the source electrode of field effect transistor Q1, and amplifying circuit composition, be also connected with linear drive circuit between the drain electrode of scene effect pipe Q1 and amplifying circuit, described linear drive circuit is by driving chip U, triode VT3, triode VT4, triode VT5, triode VT6, positive pole is connected with the drain electrode of field effect transistor Q1, the polar capacitor C3 that negative pole is connected with the IN1 pin of driving chip U after resistance R10, one end is connected with the collector electrode of triode VT6, the resistance R11 that the other end is connected with the base stage of triode VT3 after resistance R12, positive pole is connected with the base stage of triode VT6, the polar capacitor C5 that negative pole is connected with the IN1 pin of driving chip U, positive pole is connected with the IN2 pin of driving chip U, the polar capacitor C4 of minus earth, one end is connected with the emitter of triode VT6, the resistance R14 that the other end is connected with the base stage of triode VT5, one end is connected with the base stage of triode VT5, the resistance R13 that the other end is connected with the base stage of triode VT3, N pole is connected with the collector electrode of triode VT6, the diode D2 that P pole is connected with the collector electrode of triode VT5, positive terminal is connected with the collector electrode of triode VT6, the not gate K that end of oppisite phase is connected with triode VT4 collector electrode, one end is connected with triode VT4 emitter, the resistance R16 that the other end is connected with the emitter of triode VT3 after resistance R15, the end of oppisite phase of P pole NAND gate K is connected, the diode D3 that N pole is connected with the tie point of resistance R16 with resistance R15 forms, the VCC pin of described driving chip U is connected with the base stage of triode VT6, END pin ground connection, OUT pin are connected with the collector electrode of triode VT5, the collector electrode of triode VT5 is also connected with the base stage of triode VT4, its emitter is connected with the base stage of triode VT3, the grounded collector of triode VT3, the N pole of diode D3 is connected with amplifying circuit.
Described current source circuit is by triode VT1, triode VT2, the voltage stabilizing didoe D1 that N pole is connected with the base stage of triode VT1, P pole is connected with the emitter of triode VT1 after resistance R2, one end is connected with the base stage of triode VT1, the resistance R1 of other end ground connection, and the polar capacitor C2 that negative pole is connected with the drain electrode of field effect transistor Q1, positive pole is connected with the emitter of triode VT2 after resistance R3 forms; The described collector electrode of triode VT1 is connected with the source electrode of field effect transistor Q1, its emitter is then connected with the base stage of triode VT2, the grounded collector of triode VT2, and the P pole of voltage stabilizing didoe D1 is connected with external power source.
Described amplifying circuit is by amplification chip P, one end is connected with the forward end of amplification chip P after resistance R7, the resistance R5 of other end ground connection, the resistance R6 that one end is connected with the tie point of resistance R7 with resistance R5, the other end is connected with the backward end of amplification chip P after resistance R8, the resistance R9 be serially connected with between the backward end of amplification chip P and output form; Resistance R5 is connected with the N pole of diode D3 with the tie point of resistance R7, the tie point ground connection of resistance R6 and resistance R8.
Described driving chip U is LM387 integrated chip.
The utility model compared with prior art, has the following advantages and beneficial effect:
(1) the driving amplifier system that linear drive circuit of the present utility model can be stable, thus the amplification effect of improvement amplifier.
(2) the utility model adopts LM387 chip as driving chip, its highly sensitive, low price.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present utility model.
Fig. 2 is the structural representation of the utility model linear drive circuit.
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, bias current sources amplifier system based on Linear Driving of the present utility model, primarily of field effect transistor Q1, negative pole is connected with the grid of field effect transistor Q1, positive pole is as the polar capacitor C1 of signal input part, one end is connected with the grid of field effect transistor Q1, the resistance R4 of other end ground connection, the current source circuit be connected with the source electrode of field effect transistor Q1, and amplifying circuit composition, be also connected with linear drive circuit between the drain electrode of scene effect pipe Q1 and amplifying circuit.
As shown in Figure 2, described linear drive circuit is by driving chip U, triode VT3, triode VT4, triode VT5, triode VT6, positive pole is connected with the drain electrode of field effect transistor Q1, the polar capacitor C3 that negative pole is connected with the IN1 pin of driving chip U after resistance R10, one end is connected with the collector electrode of triode VT6, the resistance R11 that the other end is connected with the base stage of triode VT3 after resistance R12, positive pole is connected with the base stage of triode VT6, the polar capacitor C5 that negative pole is connected with the IN1 pin of driving chip U, positive pole is connected with the IN2 pin of driving chip U, the polar capacitor C4 of minus earth, one end is connected with the emitter of triode VT6, the resistance R14 that the other end is connected with the base stage of triode VT5, one end is connected with the base stage of triode VT5, the resistance R13 that the other end is connected with the base stage of triode VT3, N pole is connected with the collector electrode of triode VT6, the diode D2 that P pole is connected with the collector electrode of triode VT5, positive terminal is connected with the collector electrode of triode VT6, the not gate K that end of oppisite phase is connected with triode VT4 collector electrode, one end is connected with triode VT4 emitter, the resistance R16 that the other end is connected with the emitter of triode VT3 after resistance R15, the end of oppisite phase of P pole NAND gate K is connected, the diode D3 that N pole is connected with the tie point of resistance R16 with resistance R15 forms, the VCC pin of described driving chip U is connected with the base stage of triode VT6, END pin ground connection, OUT pin are connected with the collector electrode of triode VT5, the collector electrode of triode VT5 is also connected with the base stage of triode VT4, its emitter is connected with the base stage of triode VT3, the grounded collector of triode VT3, the N pole of diode D3 is connected with amplifying circuit.Linear drive circuit can be stable driving amplifier system, thus improvement amplifier amplification effect.Meanwhile, described driving chip U is LM387 integrated chip, its highly sensitive, low price.
Described current source circuit is by triode VT1, triode VT2, the voltage stabilizing didoe D1 that N pole is connected with the base stage of triode VT1, P pole is connected with the emitter of triode VT1 after resistance R2, one end is connected with the base stage of triode VT1, the resistance R1 of other end ground connection, and the polar capacitor C2 that negative pole is connected with the drain electrode of field effect transistor Q1, positive pole is connected with the emitter of triode VT2 after resistance R3 forms; The described collector electrode of triode VT1 is connected with the source electrode of field effect transistor Q1, its emitter is then connected with the base stage of triode VT2, the grounded collector of triode VT2, and the P pole of voltage stabilizing didoe D1 is connected with external power source.
Described amplifying circuit is by amplification chip P, one end is connected with the forward end of amplification chip P after resistance R7, the resistance R5 of other end ground connection, the resistance R6 that one end is connected with the tie point of resistance R7 with resistance R5, the other end is connected with the backward end of amplification chip P after resistance R8, the resistance R9 be serially connected with between the backward end of amplification chip P and output form; Resistance R5 is connected with the N pole of diode D3 with the tie point of resistance R7, the tie point ground connection of resistance R6 and resistance R8.
As mentioned above, just well the utility model can be realized.
Claims (4)
1. based on the bias current sources amplifier system of Linear Driving, primarily of field effect transistor Q1, negative pole is connected with the grid of field effect transistor Q1, positive pole is as the polar capacitor C1 of signal input part, one end is connected with the grid of field effect transistor Q1, the resistance R4 of other end ground connection, the current source circuit be connected with the source electrode of field effect transistor Q1, and amplifying circuit composition, it is characterized in that: between the drain electrode of scene effect pipe Q1 and amplifying circuit, be also connected with linear drive circuit, described linear drive circuit is by driving chip U, triode VT3, triode VT4, triode VT5, triode VT6, positive pole is connected with the drain electrode of field effect transistor Q1, the polar capacitor C3 that negative pole is connected with the IN1 pin of driving chip U after resistance R10, one end is connected with the collector electrode of triode VT6, the resistance R11 that the other end is connected with the base stage of triode VT3 after resistance R12, positive pole is connected with the base stage of triode VT6, the polar capacitor C5 that negative pole is connected with the IN1 pin of driving chip U, positive pole is connected with the IN2 pin of driving chip U, the polar capacitor C4 of minus earth, one end is connected with the emitter of triode VT6, the resistance R14 that the other end is connected with the base stage of triode VT5, one end is connected with the base stage of triode VT5, the resistance R13 that the other end is connected with the base stage of triode VT3, N pole is connected with the collector electrode of triode VT6, the diode D2 that P pole is connected with the collector electrode of triode VT5, positive terminal is connected with the collector electrode of triode VT6, the not gate K that end of oppisite phase is connected with triode VT4 collector electrode, one end is connected with triode VT4 emitter, the resistance R16 that the other end is connected with the emitter of triode VT3 after resistance R15, the end of oppisite phase of P pole NAND gate K is connected, the diode D3 that N pole is connected with the tie point of resistance R16 with resistance R15 forms, the VCC pin of described driving chip U is connected with the base stage of triode VT6, END pin ground connection, OUT pin are connected with the collector electrode of triode VT5, the collector electrode of triode VT5 is also connected with the base stage of triode VT4, its emitter is connected with the base stage of triode VT3, the grounded collector of triode VT3, the N pole of diode D3 is connected with amplifying circuit.
2. the bias current sources amplifier system based on Linear Driving according to claim 1, it is characterized in that: described current source circuit is by triode VT1, triode VT2, the voltage stabilizing didoe D1 that N pole is connected with the base stage of triode VT1, P pole is connected with the emitter of triode VT1 after resistance R2, one end is connected with the base stage of triode VT1, the resistance R1 of other end ground connection, and the polar capacitor C2 that negative pole is connected with the drain electrode of field effect transistor Q1, positive pole is connected with the emitter of triode VT2 after resistance R3 forms; The described collector electrode of triode VT1 is connected with the source electrode of field effect transistor Q1, its emitter is then connected with the base stage of triode VT2, the grounded collector of triode VT2, and the P pole of voltage stabilizing didoe D1 is connected with external power source.
3. the bias current sources amplifier system based on Linear Driving according to claim 2, it is characterized in that: described amplifying circuit is by amplification chip P, one end is connected with the forward end of amplification chip P after resistance R7, the resistance R5 of other end ground connection, the resistance R6 that one end is connected with the tie point of resistance R7 with resistance R5, the other end is connected with the backward end of amplification chip P after resistance R8, the resistance R9 be serially connected with between the backward end of amplification chip P and output form; Resistance R5 is connected with the N pole of diode D3 with the tie point of resistance R7, the tie point ground connection of resistance R6 and resistance R8.
4. the bias current sources amplifier system based on Linear Driving according to any one of claims 1 to 3, is characterized in that: described driving chip U is LM387 integrated chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420740492.3U CN204316445U (en) | 2014-11-29 | 2014-11-29 | Based on the bias current sources amplifier system of Linear Driving |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420740492.3U CN204316445U (en) | 2014-11-29 | 2014-11-29 | Based on the bias current sources amplifier system of Linear Driving |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204316445U true CN204316445U (en) | 2015-05-06 |
Family
ID=53138739
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420740492.3U Expired - Fee Related CN204316445U (en) | 2014-11-29 | 2014-11-29 | Based on the bias current sources amplifier system of Linear Driving |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204316445U (en) |
-
2014
- 2014-11-29 CN CN201420740492.3U patent/CN204316445U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104467697A (en) | Linear drive based bias current source amplifier system | |
| CN104469190A (en) | Stable biasing amplification image processing system | |
| CN105974958A (en) | High-precision signal acquisition and processing system for digital temperature controller | |
| CN104967947A (en) | Low-pass filtering amplification audio processing system based on step-down constant current circuit | |
| CN104410769A (en) | Stable image processing system | |
| CN204316445U (en) | Based on the bias current sources amplifier system of Linear Driving | |
| CN110412342B (en) | Quick current detection circuit | |
| CN104410941A (en) | Phase-shift processing based automatic-gain wide-range audio processing system | |
| CN104967315A (en) | Low-pass filtering amplification peak-clipping pulse wave modulation system based on step-down type constant current | |
| CN204190709U (en) | Based on the amplifier circuit of bias current sources | |
| CN204316738U (en) | Based on phase shift process from gain wide region audio frequency processing system | |
| CN104936095A (en) | Audio processing system based on triode common-emitter symmetric amplification circuit | |
| CN203289404U (en) | CMOS buffer circuit capable of driving high capacitive load | |
| CN104124933A (en) | Amplification circuit, circuit board and electronic device | |
| CN104333238A (en) | Power supply circuit for navigation device | |
| CN204290891U (en) | A kind of wideband power amplifer circuit | |
| CN219577017U (en) | Power amplifying circuit | |
| CN204408610U (en) | A kind of high bandwidth from gain audio frequency processing system | |
| CN204316739U (en) | Low-pass filtering based on Linear Driving amplifies audio frequency processing system | |
| CN103391082B (en) | The replacement circuit of low threshold voltage diode | |
| CN203466727U (en) | Miniwatt voltage stabilizing source circuit | |
| CN204316484U (en) | A kind of linear drive circuit | |
| CN106026943A (en) | Audio power amplification system based on emitter following circuit | |
| CN204316629U (en) | A kind of stable biased enlarged image treatment system | |
| CN104540070A (en) | High-bandwidth self-gain audio processing system |
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: 20150506 Termination date: 20151129 |