A high performance linear power module

Abstract

The present application provides a high-performance linear power module, which belongs to the field of power amplification equipment. The module includes a housing and a circuit board arranged in the housing; wherein the circuit board is provided with a differential input unit, a power drive unit, a power amplification unit, a signal input end, a signal output end and a feedback chip; the signal input end, the differential input unit, the power drive unit, the power amplification unit and the signal output end are connected in sequence; the input end of the feedback chip is respectively connected to the signal input end and the signal output end, and the output end of the feedback chip is connected to the differential input unit. The feedback chip compares the voltage of the input signal of the signal input end with the output signal of the signal output end, obtains the voltage difference between the two signals, and uses the voltage difference as a distortion signal, performs inversion processing on the distorted signal, and then inputs the differential input unit for negative feedback regulation. The present invention reduces the distortion of the input signal during amplification, improves the amplification efficiency of the signal and the adaptability of the module to the environment.

Description

Technical Field

[0001] The present application belongs to the field of power amplification equipment, and specifically relates to a high-performance linear power module. Background Art

[0002] An audio power amplifier actually amplifies a relatively small audio signal to increase its power and then output it. Existing audio power modules are mainly used in audio power amplifiers, but there are many peripheral components, such as pins, surface mount components, etc. The module is easily affected by factors such as ambient temperature and humidity and is not suitable for complex use environments. At the same time, when performing power amplification, the existing audio power module usually works in Class A or Class AB working state, and the module distortion is relatively serious. Summary of the invention

[0003] To this end, the present application provides a high-performance linear power module, which helps to solve the problems of high distortion and poor environmental adaptability of existing power modules.

[0004] To achieve the above objectives, this application adopts the following technical solutions:

[0005] The present application provides a high-performance linear power module, comprising:

[0006] A housing and a circuit board arranged in the housing; wherein the circuit board is provided with a differential input unit, a power driving unit, a power amplifying unit, a signal input terminal, a signal output terminal, a positive power supply, a negative power supply and a feedback chip;

[0007] The signal input end is connected to the differential input unit, the differential input unit is connected to the power driving unit, the power driving unit is connected to the power amplifying unit, and the power amplifying unit is connected to the signal output end;

[0008] The input end of the feedback chip is connected to the signal input end and the signal output end respectively, and the output end of the feedback chip is connected to the input end of the differential input unit;

[0009] The power input terminals of the differential input unit, the power driving unit and the power amplifying unit are connected to the positive power supply; the power output terminals of the differential input unit, the power driving unit and the power amplifying unit are connected to the negative power supply;

[0010] The feedback chip is used to compare the voltage of the input signal of the signal input end with the output signal of the signal output end, obtain the voltage difference between the input signal and the output signal, and use the voltage difference as a distortion signal, invert the distorted signal and input it into the differential input unit, and perform negative feedback regulation on the output signal of the differential input unit.

[0011] Further, the power amplification unit includes a first amplifying triode, a second amplifying triode, a third amplifying triode, a fourth amplifying triode, a first power amplifier resistor, a second power amplifier resistor, a third power amplifier resistor, a fourth power amplifier resistor, a fifth power amplifier resistor and a sixth power amplifier resistor; wherein,

[0012] The collector of the first amplifying transistor is connected to a positive power supply, the base of the first amplifying transistor is connected to an output end of the power driving unit, the emitter of the first amplifying transistor is connected to a second power amplifier resistor and a third power amplifier resistor respectively, and the second power amplifier resistor is connected to a negative power supply;

[0013] The emitter of the second amplifying transistor is connected to the first power amplifier resistor, the first power amplifier resistor is connected to a positive power supply, the base of the second amplifying transistor is connected to an output end of the power driving unit, and the collector of the second amplifying transistor is connected to a negative power supply;

[0014] The collector of the third amplifying transistor is connected to the positive power supply, the base of the third amplifying transistor is connected to the third power amplifier resistor, and the emitter of the third amplifying transistor is connected to the fifth power amplifier resistor; the fifth power amplifier resistor is respectively connected to the sixth power amplifier resistor and the signal output terminal;

[0015] The emitter of the fourth amplifying transistor is connected to the sixth power amplifier resistor, the collector of the fourth amplifying transistor is connected to the negative power supply, the base of the fourth amplifying transistor is connected to the fourth power amplifier resistor, and the fourth power amplifier resistor is connected to the first power amplifier resistor.

[0016] Further, the power driving unit includes a first driving transistor, a second driving transistor, a first driving resistor, a second driving resistor, a third driving resistor and a first grounding resistor; wherein,

[0017] The emitter of the first driving transistor is connected to the first driving resistor, the collector of the first driving transistor is respectively connected to the base of the first amplifying transistor and the third driving resistor, the base of the first driving transistor is connected to the differential input unit, and the first driving resistor is connected to a positive power supply;

[0018] The collector of the second driving transistor is connected to the third driving resistor, the emitter of the second driving transistor is connected to the second driving resistor, and the base of the second driving transistor is connected to the first grounding resistor;

[0019] The second driving resistor is connected to the negative power supply; the third driving resistor is connected to the base of the second amplifying transistor; and the first grounding resistor is connected to the differential input unit.

[0020] Further, the differential input unit includes a first differential transistor, a second differential transistor, a third differential transistor, a first differential resistor, a second differential resistor, a third differential resistor, a fourth differential resistor, a fifth differential resistor and a second grounding resistor; wherein,

[0021] The collector of the first differential transistor is connected to the first differential resistor, the emitter of the first differential transistor is connected to the third differential resistor, and the base of the first differential transistor is connected to the signal input terminal;

[0022] One end of the first differential resistor is connected to the positive power supply, and the other end of the first differential resistor is also connected to the base of the first driving transistor;

[0023] The collector of the second differential transistor is connected to one end of the second differential resistor, the other end of the second differential resistor is connected to a positive power supply, the emitter of the second differential transistor is connected to the fourth differential resistor, and the base of the second differential transistor is connected to the output end of the feedback chip;

[0024] The collector of the third differential transistor is connected to the third differential resistor and the fourth differential resistor respectively, and the emitter of the third differential transistor is connected to the fifth differential resistor;

[0025] The fifth differential resistor is connected to the negative power supply; one end of the second grounding resistor is respectively connected to the base of the third differential transistor and the first grounding resistor, and the other end of the second grounding resistor is grounded.

[0026] Furthermore, the signal input end includes an input interface terminal, an isolation resistor and an isolation capacitor; the input interface terminal is respectively connected to one end of the isolation resistor, one end of the isolation capacitor, the base of the first differential transistor and the input end of the feedback chip; the other end of the isolation resistor and the other end of the isolation capacitor are both grounded.

[0027] Furthermore, the feedback chip is used to compare the voltage of the input signal of the signal input end with the power output signal of the signal output end to obtain the voltage difference between the two signals, and use the voltage difference between the two signals as a distorted signal, invert the distorted signal and feed it back to the differential input unit.

[0028] Furthermore, a signal input pin, a signal output pin and a common ground pin are provided on the outside of the shell; the signal input pin is connected to the signal input end, the signal output pin is connected to the signal output end, and the common ground pin is connected to the signal input end, the feedback chip and the differential input unit.

[0029] Furthermore, the power driving unit further comprises an amplifying diode, an input end of the amplifying diode is connected to the collector of the first driving transistor, and an output end of the amplifying diode is connected to the third driving resistor.

[0030] This application adopts the above technical solution, which has at least the following beneficial effects:

[0031] A high-performance linear power module provided by the present application includes a housing and a circuit board disposed in the housing. By disposing the peripheral components of the module on the circuit board and encapsulating the circuit board as a whole inside the housing, the adaptability of the module to the environment can be improved and the impact of environmental factors on the performance of the module can be reduced. At the same time, a feedback chip is provided inside the module, and the feedback chip performs negative feedback regulation on the differential input unit according to the voltage difference between the input signal and the output signal, thereby reducing the distortion of the input signal during amplification and improving the amplification efficiency of the signal.

[0032] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.

[0034] Figure 1 is a schematic diagram of an overall circuit structure of a high-performance linear power module according to an exemplary embodiment;

[0035] Figure 2 is a diagram showing an internal circuit structure of a high-performance linear power module according to an exemplary embodiment;

[0036] Figure 3 is a side view of a high performance linear power module according to an exemplary embodiment;

[0037] Figure 4 is a top view of a high performance linear power module according to an exemplary embodiment;

[0038] Figure 5 This is the characteristic curve of the traditional power tube;

[0039] Figure 6 is a graph showing a power tube characteristic curve of a high-performance linear power module according to an exemplary embodiment;

[0040] Attached Figure 3~Figure 4 In the figure, 1-shell, 2-signal input pin, 3-signal output pin, 4-common ground pin, 5-positive power supply access pin, 6-negative power supply access pin. DETAILED DESCRIPTION

[0041] In order to make the purpose, technical solution and advantages of the present application clearer, the technical solution of the present application will be described in detail below.

[0042] Existing audio power modules are mainly used in audio power amplifiers. There are many pins. Although there are some so-called "foolproof" power amplifier modules, such modules are just discrete circuits packaged in a box, and there are still many peripheral components. It can be seen that the shortcomings of existing audio power modules are as follows:

[0043] 1. Low power, the maximum power of the module is about 120 watts. (For example: STK thick film circuit or similar modules represented by Japan Sanyo).

[0044] 2. The module has many peripheral components, many pins and is complex to use.

[0045] 3. The module has a narrow frequency band, roughly 20Hz-50KHz, and the module is only used in audio and sound applications.

[0046] In view of the defects of the above-mentioned existing audio power modules, the present invention provides a high-performance linear power module. By setting the peripheral components of the module on a circuit board and encapsulating the circuit board as a whole inside a housing, the adaptability of the module to the environment can be improved, and the impact of environmental factors on the performance of the module can be reduced. At the same time, the distortion of the input signal during amplification is eliminated, and the amplification efficiency of the signal is improved. The specific implementation process of this application is shown in the following embodiments.

[0047] Example 1

[0048] See also Figure 1~Figure 4 , the present invention shows a high performance linear power module, Figure 1 The overall circuit structure of a high-performance linear power module is shown, and the module mainly includes: a housing 1 and a circuit board arranged in the housing 1. The circuit board is provided with a differential input unit, a power driving unit, a power amplification unit, a signal input terminal, a signal output terminal, a positive power supply, a negative power supply and a feedback chip.

[0049] The signal input terminal is connected to the differential input unit, the differential input unit is connected to the power driving unit, the power driving unit is connected to the power amplifying unit, and the power amplifying unit is connected to the signal output terminal;

[0050] The input end of the feedback chip is connected to the signal input end and the signal output end respectively, and the output end of the feedback chip is connected to the input end of the differential input unit;

[0051] The power input terminals of the differential input unit, the power driving unit and the power amplifying unit are connected to the positive power supply; the power output terminals of the differential input unit, the power driving unit and the power amplifying unit are connected to the negative power supply;

[0052] The feedback chip is used to compare the voltage of the input signal of the signal input end with the output signal of the signal output end, obtain the voltage difference between the input signal and the output signal, and use the voltage difference as a distortion signal, invert the distorted signal and input it into the differential input unit, and perform negative feedback regulation on the output signal of the differential input unit.

[0053] Specifically, the housing 1 of the present invention is a square housing, the circuit board inside the housing 1 is an integrated circuit board, and each unit component is correspondingly arranged on the integrated circuit board. The present invention encapsulates the peripheral components of the power module in a module and seals it with the housing 1, so that there is no redundant component outside the module except the power supply, which can ensure that the module can be used in special environments, such as: underwater, outdoor, mine and other high corrosion, high humidity and high temperature environments. The module is simple to use as a whole, low cost, and high cost performance.

[0054] In addition, the present invention provides a feedback chip inside the module, and the feedback chip performs negative feedback regulation on the differential input unit according to the voltage difference between the input signal and the output signal, thereby reducing the distortion of the input signal during amplification and improving the signal amplification efficiency.

[0055] Example 2

[0056] In this embodiment, refer to Figure 2 As shown, the power amplifier unit of the present invention includes a first amplifier transistor Q6, a second amplifier transistor Q7, a third amplifier transistor Q8, a fourth amplifier transistor Q9, a first power amplifier resistor R13, a second power amplifier resistor R14, a third power amplifier resistor R15, a fourth power amplifier resistor R16, a fifth power amplifier resistor R17 and a sixth power amplifier resistor R18.

[0057] The collector of the first amplifying transistor Q6 is connected to the positive power supply, the base of the first amplifying transistor Q6 is connected to the output end of the power driving unit, the emitter of the first amplifying transistor Q6 is connected to the second power amplifier resistor R14 and the third power amplifier resistor R15 respectively, and the second power amplifier resistor R14 is connected to the negative power supply;

[0058] The emitter of the second amplifying transistor Q7 is connected to the first power amplifier resistor R13, the first power amplifier resistor R13 is connected to the positive power supply, the base of the second amplifying transistor Q7 is connected to the output end of the power driving unit, and the collector of the second amplifying transistor Q7 is connected to the negative power supply;

[0059] The collector of the third amplifying transistor Q8 is connected to the positive power supply, the base of the third amplifying transistor Q8 is connected to the third power amplifier resistor R15, and the emitter of the third amplifying transistor Q8 is connected to the fifth power amplifier resistor R17; the fifth power amplifier resistor R17 is respectively connected to the sixth power amplifier resistor R18 and the signal output terminal;

[0060] The emitter of the fourth amplifying transistor Q9 is connected to the sixth power amplifier resistor R18, the collector of the fourth amplifying transistor Q9 is connected to the negative power supply, the base of the fourth amplifying transistor Q9 is connected to the fourth power amplifier resistor R16, and the fourth power amplifier resistor R16 is connected to the first power amplifier resistor R13.

[0061] The third amplifying transistor Q8 uses a high-performance P-tube, and the fourth amplifying transistor Q9 uses a high-performance N-tube. The P-tube and the N-tube are power tubes that can work under ultra-low current. Figure 5 and Figure 6 Compared with traditional power tubes, the power tubes used in the present invention that work at ultra-low currents have excellent linear input characteristics, which completely surpass traditional power tubes. The power tubes used in the present invention can work at ultra-low currents, and their final-stage currents are 0.5ma, that is, the present invention uses these two power tubes to ensure that the module obtains extremely low signal distortion. In the frequency band of 5Hz to 800kHz, the distortion of the module is less than 0.05%.

[0062] The present invention adopts low-power consumption P tube and N tube to amplify the input signal, thereby reducing the power consumption of the module, and at the same time, ensures that the module still maintains a low-distortion state under the condition of low power consumption.

[0063] Example 3

[0064] In this embodiment, refer to Figure 2 As shown, the power drive unit of the present invention includes a first drive transistor Q4, a second drive transistor Q5, a first drive resistor R10, a second drive resistor R11, a third drive resistor R12 and a first grounding resistor R8.

[0065] The emitter of the first driving transistor Q4 is connected to the first driving resistor R10, the collector of the first driving transistor Q4 is connected to the base of the first amplifying transistor Q6 and the third driving resistor R12 respectively, the base of the first driving transistor Q4 is connected to the differential input unit, and the first driving resistor R10 is connected to the positive power supply;

[0066] The collector of the second driving transistor Q5 is connected to the third driving resistor R12, the emitter of the second driving transistor Q5 is connected to the second driving resistor R11, and the base of the second driving transistor Q5 is connected to the first grounding resistor R8;

[0067] The second driving resistor R11 is connected to the negative power supply; the third driving resistor R12 is connected to the base of the second amplifying transistor Q7; and the first grounding resistor R8 is connected to the differential input unit.

[0068] The power drive unit of the present invention mainly increases the power amplitude of the input signal and expands the frequency band of the module so that the subsequent power amplifier unit can perform secondary amplification and output on the input signal to achieve the expected output power. The existing module frequency band is approximately between 20 Hz and 50 kHz, while the module frequency band provided by the present invention can reach between 10 Hz and 600 kHz.

[0069] Example 4

[0070] In this embodiment, refer to Figure 2 As shown, the differential input unit of the present invention includes a first differential transistor Q1, a second differential transistor Q2, a third differential transistor Q3, a first differential resistor R3, a second differential resistor R4, a third differential resistor R5, a fourth differential resistor R6, a fifth differential resistor R7 and a second grounding resistor R9.

[0071] The collector of the first differential transistor Q1 is connected to the first differential resistor R3, the emitter of the first differential transistor Q1 is connected to the third differential resistor R5, and the base of the first differential transistor Q1 is connected to the signal input terminal;

[0072] One end of the first differential resistor R3 is connected to the positive power supply, and the other end of the first differential resistor R3 is also connected to the base of the first driving transistor Q4;

[0073] The collector of the second differential transistor Q2 is connected to one end of the second differential resistor R4, the other end of the second differential resistor R4 is connected to the positive power supply, the emitter of the second differential transistor Q2 is connected to the fourth differential resistor R6, and the base of the second differential transistor Q2 is connected to the output end of the feedback chip;

[0074] The collector of the third differential transistor Q3 is connected to the third differential resistor R5 and the fourth differential resistor R6 respectively, and the emitter of the third differential transistor Q3 is connected to the fifth differential resistor R7;

[0075] The fifth differential resistor R7 is connected to the negative power supply; one end of the second grounding resistor R9 is respectively connected to the base of the third differential transistor Q3 and the first grounding resistor R8, and the other end of the second grounding resistor R9 is grounded.

[0076] The differential input unit of the present invention is mainly used to differentially amplify the input signal and suppress common mode noise to improve the strength and clarity of the input signal.

[0077] Further, refer to Figure 2As shown, the signal input end of the present invention includes an input interface terminal IN, an isolation resistor R1 and an isolation capacitor C1; the input interface terminal IN is respectively connected to one end of the isolation resistor R1, one end of the isolation capacitor C1, the base of the first differential transistor Q1 and the input end of the feedback chip; the other end of the isolation resistor R1 and the other end of the isolation capacitor C1 are both grounded.

[0078] Among them, the present invention sets an isolation resistor and an isolation capacitor at the signal input end, which can protect the module from being damaged by current impact and maintain the stability of the input signal.

[0079] Furthermore, in the present invention, the feedback chip is used to compare the voltage of the input signal at the signal input end with the power output signal at the signal output end to obtain the voltage difference between the two signals, and use the voltage difference between the two signals as a distortion signal, invert the distorted signal and feed it back to the differential input unit, and perform negative feedback regulation on the signal output by the differential input unit.

[0080] Reference Figure 2 As shown, the feedback chip of the present invention has 4 pins, wherein the signal output terminal OUT is connected to the chip pin 2, the chip pin 1 is connected to the signal input terminal, the chip pin 3 is connected to the second differential transistor Q2, and the chip pin 4 is grounded. The main function of the feedback chip is to check the voltage between the final power output signal and the original input signal, and regard the voltage difference between the two signals as an independent distorted signal, and then reverse the phase of the distorted signal by the "mirror" principle, and then input it to the negative feedback terminal, and output it to the base of the second differential transistor Q2 through the chip pin 3. In theory, any distortion component at the output end can be completely eliminated. In actual module products, it can ensure that the module has extremely low distortion in the frequency band of 20Hz to 50KHz.

[0081] The feedback chip of the present invention mainly realizes the negative voltage feedback of the linear power module. The phase of the feedback signal is opposite to the input signal, which can offset part of the input signal, thereby improving the stability of the linear power module amplification factor, reducing the nonlinear distortion and suppressing interference generated by the amplifier itself. In the specific implementation process, the negative feedback logic of the present invention can be pre-burned into the chip to form a feedback chip. Among them, the chip can use a power amplifier chip, such as LM386, NTP8835 and other chips. In addition, other chips can also be used to write negative feedback regulation logic. The specific selection is based on the actual situation, and the present invention will not be repeated again.

[0082] Further, refer to Figure 3 and Figure 4As shown, the module housing 1 provided by the present invention is provided with a signal input pin 2, a signal output pin 3 and a common ground pin 4 on the outside. Among them, the signal input pin 2 is connected to the signal input end, the signal output pin 3 is connected to the signal output end, and the common ground pin 4 is connected to the signal input end, the feedback chip and the differential input unit. In addition, the outside of the housing 1 is also provided with a positive power supply access pin 5 connected to a positive power supply, and a negative power supply access pin 6 connected to a negative power supply.

[0083] Specifically, after the present invention encapsulates the peripheral components inside the module, only 5 pins are set on the outside of the module, specifically a signal input pin 2, a signal output pin 3, and three common ground pins 4. When the module is connected to positive and negative power supplies, it can work. It is simple to use and the convenience of using the module is improved.

[0084] Furthermore, in one embodiment, the power driving unit of the present invention further includes an amplifying diode D1 , the input end of the amplifying diode is connected to the collector of the first driving transistor Q4 , and the output end of the amplifying diode is connected to the third driving resistor R12 .

[0085] Specifically, two amplifying diodes of the present invention are provided in the power driving unit, and the two amplifying diodes are connected in series. The two series-connected diodes can effectively suppress current and voltage changes, thereby maintaining the stability of the output signal of the power driving unit.

[0086] In addition, the differential input unit of the present invention is also provided with a diode D2, which is composed of two diodes connected in series and plays the role of voltage stabilization and interference suppression.

[0087] The module provided by the present invention has a wider range of applications, and its bandwidth can reach 10Hz-600KHz. The power module provided by the present invention has high amplification efficiency. The existing linear power amplifier circuit generally works in Class A or Class AB state. The power module provided by the present invention can work in Class B state and still maintain a low distortion state. The power module of the present invention has high power: the maximum power of the existing similar module monomer is about 120 watts, and the power module of the present invention can reach a maximum of 600 watts. The present invention can customize the amplification factor from 1 to 50 times through the feedback chip and adjust it arbitrarily. Existing modules can basically only be used in the field of audio amplifiers. In addition to being used in the field of high-fidelity audio amplifiers, the power module of the present invention can also be used in the fields of ultrasonic equipment and medical equipment.

[0088] It can be understood that the same or similar parts of the above embodiments can be referenced to each other, and the contents not described in detail in some embodiments can refer to the same or similar contents in other embodiments.

[0089] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A high performance linear power module, characterized in that: include: A housing and a circuit board arranged in the housing; wherein the circuit board is provided with a differential input unit, a power driving unit, a power amplifying unit, a signal input terminal, a signal output terminal and a feedback chip; The signal input end is connected to the differential input unit, the differential input unit is connected to the power driving unit, the power driving unit is connected to the power amplifying unit, and the power amplifying unit is connected to the signal output end; The input end of the feedback chip is connected to the signal input end and the signal output end respectively, and the output end of the feedback chip is connected to the input end of the differential input unit; The feedback chip is used to compare the voltage of the input signal of the signal input end with the output signal of the signal output end, obtain the voltage difference between the input signal and the output signal, and use the voltage difference as a distortion signal, invert the distorted signal and input it into the differential input unit, and perform negative feedback regulation on the output signal of the differential input unit.

2. The high performance linear power module according to claim 1, characterized in that: It also includes a positive power supply and a negative power supply; the power input end of the differential input unit, the power driving unit and the power amplifying unit is connected to the positive power supply; the power output end of the differential input unit, the power driving unit and the power amplifying unit is connected to the negative power supply.

3. The high performance linear power module according to claim 1, characterized in that: The power amplification unit includes a first amplifying triode, a second amplifying triode, a third amplifying triode, a fourth amplifying triode, a first power amplifier resistor, a second power amplifier resistor, a third power amplifier resistor, a fourth power amplifier resistor, a fifth power amplifier resistor and a sixth power amplifier resistor; wherein, The collector of the first amplifying transistor is connected to a positive power supply, the base of the first amplifying transistor is connected to an output end of the power driving unit, the emitter of the first amplifying transistor is connected to a second power amplifier resistor and a third power amplifier resistor respectively, and the second power amplifier resistor is connected to a negative power supply; The emitter of the second amplifying transistor is connected to the first power amplifier resistor, the first power amplifier resistor is connected to a positive power supply, the base of the second amplifying transistor is connected to an output end of the power driving unit, and the collector of the second amplifying transistor is connected to a negative power supply; The collector of the third amplifying transistor is connected to the positive power supply, the base of the third amplifying transistor is connected to the third power amplifier resistor, and the emitter of the third amplifying transistor is connected to the fifth power amplifier resistor; the fifth power amplifier resistor is respectively connected to the sixth power amplifier resistor and the signal output terminal; The emitter of the fourth amplifying transistor is connected to the sixth power amplifier resistor, the collector of the fourth amplifying transistor is connected to the negative power supply, the base of the fourth amplifying transistor is connected to the fourth power amplifier resistor, and the fourth power amplifier resistor is connected to the first power amplifier resistor.

4. The high performance linear power module according to claim 1, characterized in that: The power driving unit includes a first driving transistor, a second driving transistor, a first driving resistor, a second driving resistor, a third driving resistor and a first grounding resistor; wherein, The emitter of the first driving transistor is connected to the first driving resistor, the collector of the first driving transistor is respectively connected to the base of the first amplifying transistor and the third driving resistor, the base of the first driving transistor is connected to the differential input unit, and the first driving resistor is connected to a positive power supply; The collector of the second driving transistor is connected to the third driving resistor, the emitter of the second driving transistor is connected to the second driving resistor, and the base of the second driving transistor is connected to the first grounding resistor; The second driving resistor is connected to the negative power supply; the third driving resistor is connected to the base of the second amplifying transistor; and the first grounding resistor is connected to the differential input unit.

5. The high performance linear power module according to claim 1, characterized in that: The differential input unit includes a first differential transistor, a second differential transistor, a third differential transistor, a first differential resistor, a second differential resistor, a third differential resistor, a fourth differential resistor, a fifth differential resistor and a second grounding resistor; wherein, The collector of the first differential transistor is connected to the first differential resistor, the emitter of the first differential transistor is connected to the third differential resistor, and the base of the first differential transistor is connected to the signal input terminal; One end of the first differential resistor is connected to the positive power supply, and the other end of the first differential resistor is also connected to the base of the first driving transistor; The collector of the second differential transistor is connected to one end of the second differential resistor, the other end of the second differential resistor is connected to a positive power supply, the emitter of the second differential transistor is connected to the fourth differential resistor, and the base of the second differential transistor is connected to the output end of the feedback chip; The collector of the third differential transistor is connected to the third differential resistor and the fourth differential resistor respectively, and the emitter of the third differential transistor is connected to the fifth differential resistor; The fifth differential resistor is connected to the negative power supply; one end of the second grounding resistor is respectively connected to the base of the third differential transistor and the first grounding resistor, and the other end of the second grounding resistor is grounded.

6. The high performance linear power module according to claim 1, characterized in that: The signal input end includes an input interface terminal, an isolation resistor and an isolation capacitor; the input interface terminal is respectively connected to one end of the isolation resistor, one end of the isolation capacitor, the base of the first differential transistor and the input end of the feedback chip; the other end of the isolation resistor and the other end of the isolation capacitor are both grounded.

7. The high performance linear power module according to claim 1, characterized in that: The feedback chip is used to compare the voltage of the input signal of the signal input end with the power output signal of the signal output end to obtain the voltage difference between the two signals, and use the voltage difference between the two signals as a distortion signal, invert the distortion signal and feed it back to the differential input unit.

8. The high performance linear power module according to claim 1, characterized in that: A signal input pin, a signal output pin and a common ground pin are provided on the outside of the shell; the signal input pin is connected to the signal input end, the signal output pin is connected to the signal output end, and the common ground pin is connected to the signal input end, the feedback chip and the differential input unit.

9. The high performance linear power module according to claim 4, characterized in that: The power driving unit further includes an amplifying diode, an input end of the amplifying diode is connected to the collector of the first driving transistor, and an output end of the amplifying diode is connected to the third driving resistor.

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