CN204316441U - A kind of virtual protection emitter-base bandgap grading manifold type amplifying circuit - Google Patents
A kind of virtual protection emitter-base bandgap grading manifold type amplifying circuit Download PDFInfo
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- CN204316441U CN204316441U CN201420740132.3U CN201420740132U CN204316441U CN 204316441 U CN204316441 U CN 204316441U CN 201420740132 U CN201420740132 U CN 201420740132U CN 204316441 U CN204316441 U CN 204316441U
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- power amplifier
- triode
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- emitter
- pole
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Abstract
The utility model discloses a kind of virtual protection emitter-base bandgap grading manifold type amplifying circuit, it is characterized in that, primarily of triode Q1, triode Q2, power amplifier P1, power amplifier P2, be serially connected in the resistance R3 between the end of oppisite phase of power amplifier P1 and output, be serially connected in the polar capacitor C3 between the in-phase end of power amplifier P2 and output, be serially connected in the resistance R1 between the in-phase end of power amplifier P1 and the collector electrode of triode Q1, be serially connected in the resistance R2 between the collector electrode of triode Q1 and the base stage of triode Q2, the electric capacity C2 be in parallel with resistance R2, negative pole such as to be connected with the in-phase end of power amplifier P1 the composition.The utility model overall structure is comparatively simple, and it makes and very easy to use.Meanwhile, the utility model can also effectively reduce circuit self and extraneous radio frequency interference.
Description
Technical field
The utility model relates to a kind of amplifying circuit, specifically refers to a kind of virtual protection emitter-base bandgap grading manifold type amplifying circuit.
Background technology
At present, widely, relevant voltage signal, current signal and other pulse signals are mainly carried out power amplification by according to demand in the utilization of power amplification circuit.But, traditional power amplification circuit is after carrying out power drive amplification, and not only the attenuation amplitude of its amplifying signal is comparatively large, but also can be subject to outside electromagnetic interference, and then make amplifying signal performance comparatively unstable, serious constrains using and promoting of its profound level.
Utility model content
The purpose of this utility model is to overcome the defect of the comparatively large and amplified signal unstable properties of signal attenuation amplitude after the amplification that current power amplification circuit exists, provides a kind of virtual protection emitter-base bandgap grading manifold type amplifying circuit.
The purpose of this utility model is achieved through the following technical solutions: a kind of virtual protection emitter-base bandgap grading manifold type amplifying circuit, primarily of triode Q1, triode Q2, power amplifier P1, power amplifier P2, be serially connected in the resistance R3 between the end of oppisite phase of power amplifier P1 and output, be serially connected in the polar capacitor C3 between the in-phase end of power amplifier P2 and output, be serially connected in the resistance R1 between the in-phase end of power amplifier P1 and the collector electrode of triode Q1, be serially connected in the resistance R2 between the collector electrode of triode Q1 and the base stage of triode Q2, the electric capacity C2 be in parallel with resistance R2, negative pole is connected with the in-phase end of power amplifier P1, the polar capacitor C1 that positive pole is connected with the emitter of triode Q1 after resistance R4, be serially connected in the resistance R5 between the base stage of triode Q2 and the positive pole of polar capacitor C1, positive pole is connected with the emitter of triode Q2, negative pole is in turn through electric capacity C4 that voltage stabilizing didoe D1 is connected with the output of power amplifier P1 after resistance R6, P pole is connected with the output of power amplifier P2, the diode D2 that N pole is connected with the tie point of resistance R6 with voltage stabilizing didoe D1 after resistance R7 through resistance R8, and P pole is connected with the negative pole of electric capacity C4, the voltage stabilizing didoe D3 that N pole is connected with the tie point of resistance R8 with diode D2 forms.
The base stage of described triode Q1 is connected with the positive pole of polar capacitor C1, and its emitter is connected with the emitter of triode Q2, and its collector electrode is connected with the end of oppisite phase of power amplifier P1; The collector electrode of triode Q2 is connected with the end of oppisite phase of power amplifier P2, and the in-phase end of power amplifier P2 is connected with the output of power amplifier P1.
For guaranteeing result of use, described electric capacity C2 and electric capacity C4 preferentially adopts patch capacitor to realize.
The utility model comparatively prior art is compared, and has the following advantages and beneficial effect:
(1) the utility model overall structure is comparatively simple, and it makes and very easy to use.Meanwhile, the utility model can also effectively reduce circuit self and extraneous radio frequency interference.
(2) the utility model can guarantee that larger decay can not occur the signal after it amplifies, thus can guarantee the quality and performance of amplifying signal.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present utility model.
Embodiment
Below in conjunction with 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, the utility model primarily of triode Q1, triode Q2, power amplifier P1, power amplifier P2, resistance R1, resistance R2, resistance R3, resistance R4, resistance R5, resistance R6, resistance R7, resistance R8, voltage stabilizing didoe D1, diode D2, voltage stabilizing didoe D3, polar capacitor C1, electric capacity C2, polar capacitor C3 and electric capacity C4 form.
During connection, between the end of oppisite phase that resistance R3 is serially connected in power amplifier P1 and output, between the in-phase end that polar capacitor C3 is serially connected in power amplifier P2 and output, resistance R1 is serially connected between the in-phase end of power amplifier P1 and the collector electrode of triode Q1, resistance R2 is then serially connected between the collector electrode of triode Q1 and the base stage of triode Q2, and described electric capacity C2 and resistance R2 is in parallel.
The negative pole of described polar capacitor C1 is connected with the in-phase end of power amplifier P1, and its positive pole is connected with the emitter of triode Q1 after resistance R4; Resistance R5 is serially connected between the base stage of triode Q2 and the positive pole of polar capacitor C1; And the positive pole of electric capacity C4 is connected with the emitter of triode Q2, its negative pole is connected with the output of power amplifier P1 after resistance R6 through voltage stabilizing didoe D1 in turn; The P pole of voltage stabilizing didoe D2 is connected with the output of power amplifier P2, N pole is connected with the tie point of resistance R6 with voltage stabilizing didoe D1 after resistance R7 through resistance R8; The P pole of voltage stabilizing didoe D3 is connected with the negative pole of electric capacity C4, and its N pole is connected with the tie point of resistance R8 with diode D2.
Meanwhile, the base stage of described triode Q1 is connected with the positive pole of polar capacitor C1, and its emitter is connected with the emitter of triode Q2, and its collector electrode is connected with the end of oppisite phase of power amplifier P1; The collector electrode of triode Q2 is connected with the end of oppisite phase of power amplifier P2, and the in-phase end of power amplifier P2 is connected with the output of power amplifier P1.
For guaranteeing result of use, described electric capacity C2 and electric capacity C4 is patch capacitor, and its capacitance is 5 μ F.
As mentioned above, just the utility model can well be realized.
Claims (2)
1. a virtual protection emitter-base bandgap grading manifold type amplifying circuit, it is characterized in that, primarily of triode Q1, triode Q2, power amplifier P1, power amplifier P2, be serially connected in the resistance R3 between the end of oppisite phase of power amplifier P1 and output, be serially connected in the polar capacitor C3 between the in-phase end of power amplifier P2 and output, be serially connected in the resistance R1 between the in-phase end of power amplifier P1 and the collector electrode of triode Q1, be serially connected in the resistance R2 between the collector electrode of triode Q1 and the base stage of triode Q2, the electric capacity C2 be in parallel with resistance R2, negative pole is connected with the in-phase end of power amplifier P1, the polar capacitor C1 that positive pole is connected with the emitter of triode Q1 after resistance R4, be serially connected in the resistance R5 between the base stage of triode Q2 and the positive pole of polar capacitor C1, positive pole is connected with the emitter of triode Q2, negative pole is in turn through electric capacity C4 that voltage stabilizing didoe D1 is connected with the output of power amplifier P1 after resistance R6, P pole is connected with the output of power amplifier P2, the diode D2 that N pole is connected with the tie point of resistance R6 with voltage stabilizing didoe D1 after resistance R7 through resistance R8, and P pole is connected with the negative pole of electric capacity C4, the voltage stabilizing didoe D3 that N pole is connected with the tie point of resistance R8 with diode D2 forms, the base stage of described triode Q1 is connected with the positive pole of polar capacitor C1, and its emitter is connected with the emitter of triode Q2, and its collector electrode is connected with the end of oppisite phase of power amplifier P1, the collector electrode of triode Q2 is connected with the end of oppisite phase of power amplifier P2, and the in-phase end of power amplifier P2 is connected with the output of power amplifier P1.
2. a kind of virtual protection emitter-base bandgap grading manifold type amplifying circuit according to claim 1, it is characterized in that, described electric capacity C2 and electric capacity C4 is patch capacitor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420740132.3U CN204316441U (en) | 2014-11-28 | 2014-11-28 | A kind of virtual protection emitter-base bandgap grading manifold type amplifying circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420740132.3U CN204316441U (en) | 2014-11-28 | 2014-11-28 | A kind of virtual protection emitter-base bandgap grading manifold type amplifying circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204316441U true CN204316441U (en) | 2015-05-06 |
Family
ID=53138735
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420740132.3U Expired - Fee Related CN204316441U (en) | 2014-11-28 | 2014-11-28 | A kind of virtual protection emitter-base bandgap grading manifold type amplifying circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204316441U (en) |
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2014
- 2014-11-28 CN CN201420740132.3U patent/CN204316441U/en not_active Expired - Fee Related
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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: 20150506 Termination date: 20151128 |