CN201226507Y - Power amplification circuit for power line carrier communication - Google Patents
Power amplification circuit for power line carrier communication Download PDFInfo
- Publication number
- CN201226507Y CN201226507Y CNU2008200952508U CN200820095250U CN201226507Y CN 201226507 Y CN201226507 Y CN 201226507Y CN U2008200952508 U CNU2008200952508 U CN U2008200952508U CN 200820095250 U CN200820095250 U CN 200820095250U CN 201226507 Y CN201226507 Y CN 201226507Y
- Authority
- CN
- China
- Prior art keywords
- positive
- switch triode
- negative
- npn type
- type switch
- 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
- 238000004891 communication Methods 0.000 title claims abstract description 15
- 230000003321 amplification Effects 0.000 title 1
- 238000003199 nucleic acid amplification method Methods 0.000 title 1
- 230000003068 static effect Effects 0.000 abstract 1
- 239000003990 capacitor Substances 0.000 description 12
- 238000005516 engineering process Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 208000035126 Facies Diseases 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Images
Landscapes
- Amplifiers (AREA)
Abstract
The utility model provides an amplifier circuit for power line carrier communication, the amplifier circuit can make a power pipe be in a deep saturation state fast, the signal amplitude is close to supply voltage, power utilization is the largest, and the static power consumption is the least. For solving the technical problems, the utility model adopts pre-amplifier and after-amplifier structure. When input signals are in high level, one of triodes of the pre-amplifier is closed, the other is conducted, and the voltage of a load resistance of the conducted triode is increased to make the corresponding triode of the after-amplifier be conducted, and the output of the circuit is close to the supply voltage. When the input signals are in low level, the situation is opposite, the conducted pre-amplifier is closed, the closed pre-amplifier is conducted, the voltage of the load resistance of the conducted triode is increased to make the corresponding triode of the after-amplifier be conducted, and the output of the circuit is close to the supply voltage. The amplifier circuit can be applied to all occasions of digital signal output in addition to power line carrier.
Description
Technical field
The utility model relates to a kind of power amplifier of power line carrier communication.
Background technology
Because the various types of interference when being subjected to electric operation on the power line, the power line carrier communication environment facies are when abominable, so the research for power line carrier communication ends in failure mostly in decades, one of them important reasons is that transmitting power does not increase, and just the carrier information of being sent out does not also arrive the destination with regard to disturbed signal absorption.
At present, in order to address the above problem, a kind of way wherein is to increase signal voltage, but existing communication standard has certain limitation to voltage, increases signal voltage and communication standard and is not inconsistent.Also having a kind of method is to increase signal code, but electric current changes with load, and according to whole circuit law of ohm, when load was very heavy, the output impedance of carrier source also must could produce satisfactory electric current enough for a short time; In addition, the power consumption of self also must increase after the increase power output, has strengthened the power consumption of equipment, does not meet energy-conservation trend.
The utility model content
Technical problem to be solved in the utility model is: a kind of power amplifier of power line carrier communication is provided, can makes power tube enter degree of depth saturation condition rapidly, signal amplitude is near supply voltage, and it is maximum that the power utilization rate reaches, the quiescent dissipation minimum.
For solving the problems of the technologies described above, the utility model adopts following technical scheme: a kind of power amplifier of power line carrier communication, and it comprises the 4th NPN type switch triode, the 6th positive-negative-positive switch triode;
Wherein the emitter of the 4th NPN type switch triode is connected with the emitter of the 6th positive-negative-positive switch triode;
The collector electrode of the 4th NPN type switch triode is connected with power supply, is serially connected with the 4th load resistance therebetween;
The collector electrode of the 6th positive-negative-positive switch triode is connected to ground by the 7th load resistance;
The base stage of the 6th positive-negative-positive switch triode is connected with the 6th load resistance that is used to adjust its quiescent current, and ground connection constitutes the loop;
Between the base stage of the base stage of the 4th NPN type switch triode and the 6th positive-negative-positive switch triode, be connected with clamping diode;
Described power amplifier also comprise the 7th positive-negative-positive switch triode, the 2nd NPN type switch triode and with the first crosslinked electric capacity of input signal;
Wherein, first electric capacity is connected on the base stage of the 6th positive-negative-positive switch triode;
Also be connected with the 3rd load resistance that is used to adjust its quiescent current on the base stage of described the 4th NPN type switch triode;
The base stage of described the 7th positive-negative-positive switch triode connects the collector electrode of the 4th NPN type switch triode, and its emitter connects power supply, and its collector electrode connects signal output part;
The base stage of described the 2nd NPN type switch triode connects the collector electrode of described the 6th positive-negative-positive switch triode and is connected back ground connection with the 7th load resistance, and its collector electrode connects signal output part, its grounded emitter;
The emitter of the 4th NPN type switch triode and the 6th positive-negative-positive switch triode is connected with the AC load circuit that is cascaded and is constituted by the 3rd electric capacity and the 8th resistance, and this AC load circuit ground forms the loop;
The emitter of the 4th NPN type switch triode and the 6th positive-negative-positive switch triode is connected described signal output part by the 5th load resistance.
Preferably: also be connected with second electric capacity that is used to eliminate the self-excitation electric current between the emitter of described the 4th NPN type switch triode and the 6th positive-negative-positive switch triode and the described signal output part.
Preferably: described power amplifier also comprises the LC resonant circuit of connecting with signal output part.The output of LC resonance makes the high-voltage capacitance influence on the circuit descend.
The beneficial effects of the utility model are:
Compared to existing technology, the utility model provides the output scheme of extreme efficiency, and common emitter collector electrode export structure increases power output, and owing to pressure drop between collector and emitter is little, the power tube power consumption descends, is difficult for overload and damages; Prime and back level power amplifier different loads are convenient to grading design, more help reducing power consumption down.The present invention can use in the occasion of all digital signal outputs except being applied in the power line carrier aspect.
Below in conjunction with accompanying drawing the utility model is described in further detail.
Description of drawings
Fig. 1 is the circuit structure diagram of prior art.
Fig. 2 is a circuit structure diagram of the present utility model.
Embodiment
The utility model provides a kind of power amplifier of power line carrier communication, and embodiment as shown in Figure 2.
In the prior art, general power output circuit as shown in Figure 1.The signal input part input high level signal of the one NPN type triode Q1, because the clamp effect of PN junction, the emitter output of the one NPN type triode Q1 is littler more than 0.4 volt than input point, equally when the 3rd NPN type triode Q3 conducting, the base stage of the 3rd NPN type triode Q3 and the pressure drop of emitter equally also will reach more than 0.4 volt just can keep operate as normal, Die Jia result like this, the output signal voltage of output is at least than low 0.8 volt of supply voltage, this had both increased internal resistance and had limited power output, made power tube be in magnifying state and strengthen the power tube oneself power consumption again.
The structure of the utility model embodiment is referring to Fig. 2.
The power amplifier of this power line carrier communication mainly by the 4th NPN type switch triode Q4, the 6th positive-negative-positive switch triode Q6, the 7th positive-negative-positive switch triode Q7, the 2nd NPN type switch triode Q2, with crosslinked first capacitor C 1, second capacitor C 2, the 3rd capacitor C 3, the 3rd load resistance R3 of input signal, the 4th load resistance R4, the 5th load resistance R5, the 6th load resistance R6, the 7th load resistance R7, the 8th load resistance R8, the 3rd diode D3, the 4th diode D4, inductance L and capacitor C constitute.
Wherein the emitter of the 4th NPN type switch triode Q4 is connected with the emitter of the 6th positive-negative-positive switch triode Q6.The collector electrode of the 4th NPN type switch triode Q4 is connected with power supply VCC, is serially connected with the 4th load resistance R4 therebetween.Also be connected with the 3rd load resistance R3 that is used to adjust its quiescent current on the base stage of the 4th NPN type switch triode Q4.
The collector electrode of the 6th positive-negative-positive switch triode Q6 is connected back ground connection with the 7th load resistance R7.The base stage of the 6th positive-negative-positive switch triode Q6 is connected with the 6th load resistance R6 that is used to adjust its quiescent current, and ground connection constitutes the loop.
Between the base stage of the base stage of the 4th NPN type switch triode Q4 and the 6th positive-negative-positive switch triode Q6, be connected with the 3rd diode D3 that is cascaded and the clamping diode of the 4th diode D4.
Wherein, first capacitor C, 1 one ends connect signal input part, and its other end is connected on the base stage of the 6th positive-negative-positive switch triode Q6.
The base stage of the 7th positive-negative-positive switch triode Q7 connects the collector electrode of the 4th NPN type switch triode Q4, and its emitter connects power supply VCC, and its collector electrode connects signal output part.
The base stage of the 2nd NPN type switch triode Q2 connects the collector electrode of the 6th positive-negative-positive switch triode Q6 and is connected back ground connection with the 7th load resistance R7, and its collector electrode connects signal output part, its grounded emitter.
The emitter of the 4th NPN type switch triode Q4 and the 6th positive-negative-positive switch triode Q6 is connected with the AC load circuit that is cascaded and is constituted by the 3rd capacitor C 3 and the 8th load resistance R8, and this AC load circuit ground forms the loop.Also be connected with second capacitor C 2 that is used to eliminate the self-excitation electric current between the emitter of the 4th NPN type switch triode Q4 and the 6th positive-negative-positive switch triode Q6 and the described signal output part.
The emitter of the 4th NPN type switch triode Q4 and the 6th positive-negative-positive switch triode Q6 is connected described signal output part by the 5th load resistance R5.Power amplifier also comprises the LC resonant circuit of connecting with signal output part.The LC resonant circuit is made of inductance L and capacitor C series connection.
The function of each element is summarized as follows in the circuit:
The 3rd load resistance R3 and the 6th load resistance R6 are used for adjusting the quiescent current of the 4th NPN type switch triode Q4, the 6th these two preposition pipes of positive-negative-positive switch triode Q6 respectively.
The 4th load resistance R4 is as the load resistance of the 4th NPN type switch triode Q4, guarantee that again the 7th positive-negative-positive switch triode Q7 reliably ends, the relation of the 7th load resistance R7 and the 6th positive-negative-positive switch triode Q6, the 2nd NPN type switch triode Q2 too.The 3rd diode D3, the 4th diode D4 are as clamp.
AC load every straight the 3rd capacitor C 3 and the 8th load resistance R8 composition prime, when input signal is arranged, they can make the 4th load resistance R4, the 7th load resistance R7 electric current increase, to drive these two final stage power amplifier outputs of the 7th positive-negative-positive switch triode Q7, the 2nd NPN type switch triode Q2; During no signal, make the 7th positive-negative-positive switch triode Q7, the 2nd NPN type switch triode Q2 be in critical condition.Second capacitor C 2 is used to eliminate the self-excitation electric current.Inductance L and capacitor C are formed a serial resonant circuit, and this resonant circuit is used to export and reduces on the power line power capacity to the influence of carrier signal.
The characteristics of this circuit are that the 7th positive-negative-positive switch triode Q7, the 2nd NPN type switch triode Q2 are in critical condition when flat, no current output; In case output, it is saturated to make the 7th positive-negative-positive switch triode Q7 or the 2nd NPN type switch triode Q2 be in the degree of depth, and output signal reaches near supply voltage.
The operation principle of circuit of the present utility model is as follows:
Input signal is by first capacitor C, 1 crosslinked this circuit that enters.If input signal is a high level, the 6th positive-negative-positive switch triode Q6 ends, and the 4th NPN type switch triode Q4 conducting, the 4th load resistance R4 voltage increases, after increasing to the conducting voltage that reaches the 7th positive-negative-positive switch triode Q7, because the base voltage of the 7th positive-negative-positive switch triode Q7 can guarantee to be lower than collector electrode, the 7th positive-negative-positive switch triode Q7 enters the saturation region rapidly, the pressure drop of the emitter and collector of the 7th positive-negative-positive switch triode Q7 can reach in 0.1 volt, and the output that makes circuit is near supply voltage.If input signal is a low level, the 4th NPN type switch triode Q4 ends, the 6th positive-negative-positive switch triode Q6 conducting, the 7th load resistance R7 voltage increases, increase to (being that base voltage is higher than collector electrode) after the conducting voltage that reaches the 2nd NPN type switch triode Q2, make the 2nd NPN type switch triode Q2 enter the saturation region rapidly equally, the pressure drop of the emitter and collector of the 2nd NPN type switch triode Q2 can reach in 0.1 volt, and the output that makes circuit is near power supply ground.
Like this, the AC signal of certain frequency after amplifying through this power amplifier, has reached power output, and its amplitude is near supply voltage, and the transistor of signal output is can the degree of depth saturated, and it is big as much as possible that its electric current also can reach.The series resonance effect of L and C, promptly resonance is used for improving output characteristic in carrier frequency, improves the utilance of power supply, makes electric capacity can not form the ratio pressure drop with the high-voltage capacitance of improving power factor on the circuit, has increased power output greatly.
Claims (3)
1, a kind of power amplifier of power line carrier communication comprises the 4th NPN type switch triode (Q4), the 6th positive-negative-positive switch triode (Q6);
Wherein the emitter of the 4th NPN type switch triode (Q4) is connected with the emitter of the 6th positive-negative-positive switch triode (Q6);
The collector electrode of the 4th NPN type switch triode (Q4) is connected with power supply (VCC), is serially connected with the 4th load resistance (R4) therebetween;
The collector electrode of the 6th positive-negative-positive switch triode (Q6) is connected to ground;
The base stage of the 6th positive-negative-positive switch triode (Q6) is connected with the 6th load resistance (R6) that is used to adjust its quiescent current, and ground connection constitutes the loop;
Between the base stage of the base stage of the 4th NPN type switch triode (Q4) and the 6th positive-negative-positive switch triode (Q6), be connected with clamping diode;
It is characterized in that: described power amplifier also comprise the 7th positive-negative-positive switch triode (Q7), the 2nd NPN type switch triode (Q2) and with crosslinked first electric capacity (C1) of input signal;
Wherein, first electric capacity (C1) is connected on the base stage of the 6th positive-negative-positive switch triode (Q6);
Also be connected with the 3rd load resistance (R3) that is used to adjust its quiescent current on the base stage of described the 4th NPN type switch triode (Q4);
The base stage of described the 7th positive-negative-positive switch triode (Q7) connects the collector electrode of the 4th NPN type switch triode (Q4), and its emitter connects power supply (VCC), and its collector electrode connects signal output part;
The base stage of described the 2nd NPN type switch triode (Q2) connects the collector electrode of described the 6th positive-negative-positive switch triode (Q6) and is connected back ground connection with the 7th load resistance (R7), and its collector electrode connects signal output part, its grounded emitter;
The emitter of the 4th NPN type switch triode (Q4) and the 6th positive-negative-positive switch triode (Q6) is connected with the AC load circuit that is cascaded and is constituted by the 3rd electric capacity (C3) and the 8th resistance (R8), and this AC load circuit ground forms the loop;
The emitter of the 4th NPN type switch triode (Q4) and the 6th positive-negative-positive switch triode (Q6) is connected described signal output part by the 5th load resistance (R5).
2, the power amplifier of power line carrier communication according to claim 1 is characterized in that: also be connected with second electric capacity (C2) that is used to eliminate the self-excitation electric current between the emitter of described the 4th NPN type switch triode (Q4) and the 6th positive-negative-positive switch triode (Q6) and the described signal output part.
3, the power amplifier of power line carrier communication according to claim 1 is characterized in that: described power amplifier also comprises the LC resonant circuit of connecting with signal output part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200952508U CN201226507Y (en) | 2008-07-01 | 2008-07-01 | Power amplification circuit for power line carrier communication |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200952508U CN201226507Y (en) | 2008-07-01 | 2008-07-01 | Power amplification circuit for power line carrier communication |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201226507Y true CN201226507Y (en) | 2009-04-22 |
Family
ID=40599408
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200952508U Expired - Fee Related CN201226507Y (en) | 2008-07-01 | 2008-07-01 | Power amplification circuit for power line carrier communication |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201226507Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102570985A (en) * | 2011-12-31 | 2012-07-11 | 上海贝岭股份有限公司 | Power amplifying circuit for powerline multicarrier communication systems |
| CN104953955A (en) * | 2015-06-05 | 2015-09-30 | 苏州经贸职业技术学院 | Amplifier circuit of three-level amplifying structure |
| WO2015176381A1 (en) * | 2014-05-21 | 2015-11-26 | 瑞斯康微电子（深圳）有限公司 | Power line carrier power amplification circuit |
| CN108259012A (en) * | 2016-12-29 | 2018-07-06 | 钜泉光电科技(上海)股份有限公司 | A kind of power amplifier of broadband power line |
| CN109004921A (en) * | 2018-07-02 | 2018-12-14 | 蔡旺兵 | A kind of switching value element exempts to shield anti-interference output circuit |
-
2008
- 2008-07-01 CN CNU2008200952508U patent/CN201226507Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102570985A (en) * | 2011-12-31 | 2012-07-11 | 上海贝岭股份有限公司 | Power amplifying circuit for powerline multicarrier communication systems |
| WO2015176381A1 (en) * | 2014-05-21 | 2015-11-26 | 瑞斯康微电子（深圳）有限公司 | Power line carrier power amplification circuit |
| CN104953955A (en) * | 2015-06-05 | 2015-09-30 | 苏州经贸职业技术学院 | Amplifier circuit of three-level amplifying structure |
| CN104953955B (en) * | 2015-06-05 | 2018-05-08 | 苏州经贸职业技术学院 | A kind of amplifier circuit of three-level structure for amplifying |
| CN108259012A (en) * | 2016-12-29 | 2018-07-06 | 钜泉光电科技(上海)股份有限公司 | A kind of power amplifier of broadband power line |
| CN108259012B (en) * | 2016-12-29 | 2021-09-14 | 钜泉光电科技(上海)股份有限公司 | Power amplifier of broadband power line |
| CN109004921A (en) * | 2018-07-02 | 2018-12-14 | 蔡旺兵 | A kind of switching value element exempts to shield anti-interference output circuit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201226507Y (en) | Power amplification circuit for power line carrier communication | |
| CN101141114A (en) | CMOS self-adaptive biasing circuit | |
| CN201903573U (en) | Current detection and amplification circuit used for two-wire manufactured instrument | |
| CN206743199U (en) | A kind of high power audio-frequency power amplifier | |
| CN101882915B (en) | Push-pull type radio-frequency power amplifier with improved linearity | |
| CN203057076U (en) | Amplifying circuit with high upper limiting frequency | |
| CN206490651U (en) | A kind of C-band high-gain GaN microwave power amplifier circuits | |
| CN203225871U (en) | Simplified audio frequency amplification circuit | |
| CN104578877A (en) | Single-stage boost inverter | |
| CN201726372U (en) | Push-pull type radio-frequency power amplifier with improved linearity | |
| CN203618113U (en) | Audio signal clipping control circuit device with power supply correlation | |
| CN203167252U (en) | Audio power overall-amplification circuit | |
| CN202334443U (en) | Amplifier capable of being directly coupled | |
| CN204334504U (en) | Easy Resistance and Capacitance Coupled Amplification Circuit | |
| CN204886882U (en) | Preamplifier | |
| CN216356648U (en) | Power amplifying circuit | |
| CN204031085U (en) | Filter circuit for speech recognition device | |
| CN203504501U (en) | Broadband low-noise amplifier | |
| CN103023439B (en) | A kind of power amplifying system for intelligent substation test system | |
| CN203057083U (en) | High-accuracy negative feedback active audio machine | |
| CN203313128U (en) | Novel infrared amplifying circuit | |
| CN209844917U (en) | DC-4GHz low-power consumption GainBlock amplifier | |
| CN209844922U (en) | DC-2GHz low-power-consumption GainBlock amplifier | |
| CN203086428U (en) | General integrated voltage comparator circuit | |
| CN202940777U (en) | Power amplification system used for intelligent converting station test system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: YU LIXIN Free format text: FORMER OWNER: SHENZHEN JIUMAO SANSHUI ELECTRIC CO., LTD. Effective date: 20100914 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 518000 101, 1/F, FACTORY BUILDING 6, RUNTANG INDUSTRY DISTRICT, DANKENG ROAD, FUMIN COMMUNITY, GUANLAN STREET OFFICE, BAOAN DISTRICT, SHENZHEN CITY, GUANGDONG PROVINCE TO: 310000 3-14, SHIJI XINCHENG, WENER WEST ROAD, HANGZHOU CITY, ZHEJIANG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20100914 Address after: 310000 century West Road, Wen two West Road, Zhejiang, Hangzhou 3-14 Patentee after: Yu Lixin Address before: 518000 Guangdong city of Shenzhen province Baoan District Guanlan Street Community Fumin Dan Keng road Runtang Industrial Zone 6 building, floor 101 Patentee before: Shenzhen Jiumao Sanshui Electric Co., Ltd. |
|
| DD01 | Delivery of document by public notice |
Addressee: Wu Yali Document name: Notification to Pay the Fees |
|
| DD01 | Delivery of document by public notice |
Addressee: Yu Lixin Document name: Notification to Pay the Fees |
|
| DD01 | Delivery of document by public notice |
Addressee: Yu Lixin Document name: Notification of Termination of Patent Right |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090422 Termination date: 20120701 |