CN116743514A - Power supply circuit of communication module - Google Patents
Power supply circuit of communication module Download PDFInfo
- Publication number
- CN116743514A CN116743514A CN202311030551.8A CN202311030551A CN116743514A CN 116743514 A CN116743514 A CN 116743514A CN 202311030551 A CN202311030551 A CN 202311030551A CN 116743514 A CN116743514 A CN 116743514A
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- resistor
- operational amplifier
- triode
- power supply
- communication module
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- 238000004891 communication Methods 0.000 title claims abstract description 28
- 239000003990 capacitor Substances 0.000 claims abstract description 20
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 13
- 229910052710 silicon Inorganic materials 0.000 claims description 13
- 239000010703 silicon Substances 0.000 claims description 13
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/02—Details
- H04L12/10—Current supply arrangements
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Amplifiers (AREA)
Abstract
The invention discloses a power supply circuit of a communication module, which relates to the technical field of communication and comprises a first potentiometer, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a first operational amplifier, a second operational amplifier, a third operational amplifier, a first triode, a second triode, a first thyristor, a second diode and a first capacitor. The invention can leave a certain mounting adjustable interval for the communication module needing to be powered when the communication module is powered normally.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a power supply circuit of a communication module.
Background
The communication module is generally provided with a power interface and is powered by a power supply, however, when the power supply of the existing communication module supplies power to the communication module, the power supply of the peripheral circuit cannot be considered for use, that is, when the module is newly added with a new function or encounters a similar load which enables the power of the module to be in a variable value based on signal intensity, the module may not be normally used.
Disclosure of Invention
Aiming at the technical problems, the invention aims to provide a power supply circuit for a communication module, which comprises a first potentiometer R1, a second resistor R2, a third resistor R3, a fourth resistor R4, a fifth resistor R5, a sixth resistor R6, a first operational amplifier U1, a second operational amplifier U2, a third operational amplifier U3, a first triode Q1, a second triode Q2, a first controllable silicon D1, a second diode D2 and a first capacitor C1, wherein one end of the first potentiometer R1, a tap end of the first potentiometer R1 and a power supply are connected, one end of the second potentiometer R1 and an in-phase end of the first resistor R2 are connected, an inverting end of the first operational amplifier U1 and an in-phase end of the third operational amplifier U3 are connected, one end of the third resistor R3, one end of the fourth resistor R4 and one end of the first capacitor C1 are connected, the other end of the fourth resistor R4 and one end of the first triode Q1 emitter, one end of the fifth resistor R5 are connected, one end of the first triode Q1 and one end of the second resistor R2 are connected, one end of the second triode Q1 and the other end of the second resistor R2 is connected, one end of the second triode Q2 is connected, the other end of the second triode Q2 and the other end of the second triode Q2 is connected, and the other end of the second triode Q2 is connected with the other end of the second triode Q2 is connected, and the other end of the second triode Q2 is connected.
Further, the circuit further comprises a seventh resistor R7, an eighth resistor R8, a ninth resistor R9 and a tenth resistor R10, wherein one end of the seventh resistor R7 is connected with the cathode of the third diode D3 and the control electrode of the first silicon controlled rectifier D1, the anode of the third diode D3 is connected with the source electrode of the third MOS transistor Q3, the grid electrode of the third MOS transistor Q3 is connected with the output end of the first operational amplifier U1, the drain electrode of the third MOS transistor Q3 is connected with one end of the eighth resistor R8, the other end of the eighth resistor R8 is connected with one end of the ninth resistor R9 and the power supply, the other end of the ninth resistor R9 is connected with one end of the tenth resistor R10 and the emitter of the second triode Q2, and the other end of the tenth resistor R10, the other end of the seventh resistor R7 and the ground end are connected.
Further, the circuit further comprises an eleventh resistor R11, a fourth MOS tube Q4, a fourth diode D4, a second capacitor C2, a first inductor L1 and a first pin PA_1, wherein the grid electrode of the fourth MOS tube Q4 is connected with the emitter electrode of the first triode Q1, the drain electrode of the fourth MOS tube Q4 is connected with the anode of the fourth diode D4 and one end of the first inductor L1, the other end of the first inductor L1 is connected with a power supply, the cathode of the fourth diode D4 is connected with PA1, one end of the second capacitor C2 and one end of the eleventh resistor R11, and the other end of the eleventh resistor R11, the other end of the second capacitor C2 and the source electrode of the fourth MOS tube Q4 are connected with a grounding end.
Further, the circuit further comprises a twelfth resistor R12, a thirteenth resistor R13, a fourteenth resistor R14 and a fifteenth resistor R15, wherein one end of the twelfth resistor R12 is connected with a power supply and one end of the fourteenth resistor R14, the other end of the twelfth resistor R12 is connected with the inverting end of the second operational amplifier U2 and one end of the thirteenth resistor R13, the other end of the fourteenth resistor R14 is connected with the inverting end of the third operational amplifier U3 and one end of the fifteenth resistor R15, and the other end of the thirteenth resistor R13 and the other end of the fifteenth resistor R15 are connected with a grounding end.
Further, the circuit further comprises a sixteenth resistor R16, one end of the sixteenth resistor R16 is connected with the drain electrode of the third MOS tube Q3, and the other end of the sixteenth resistor R16 is connected with the ground terminal.
Further, the circuit further comprises a seventeenth resistor R17, one end of the seventeenth resistor R17 is connected with the collector of the first triode Q1, and the other end of the seventeenth resistor R17 is connected with a power supply.
Further, the circuit further comprises an eighteenth resistor R18, one end of the eighteenth resistor R18 is connected with the same-phase end of the second operational amplifier U2, and the other end of the eighteenth resistor R18 is connected with the ground end.
Further, the MOS transistor further comprises a nineteenth resistor R19, one end of the nineteenth resistor R19 is connected with the source electrode of the third MOS transistor Q3, and the other end of the nineteenth resistor R19 is connected with the ground terminal.
Compared with the prior art, the invention has the beneficial effects that:
the invention can leave a certain mounting adjustable interval for the communication module needing to be powered when the communication module is powered normally, and prevent the situation that the communication module cannot be used normally after the load is increased.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following description will briefly explain the drawings needed in the prior art and the embodiments, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic diagram of a power supply circuit of a communication module according to the present invention.
Detailed Description
In order that the objects and advantages of the invention will become more readily apparent, a more particular description of the invention will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings, it being understood that the following text is only intended to describe one or more specific embodiments of the invention and is not intended to limit the scope of the invention as defined in the appended claims.
Referring to the drawings, the invention relates to a power supply circuit for a communication module, which comprises a first potentiometer R1, a second resistor R2, a third resistor R3, a fourth resistor R4, a fifth resistor R5, a sixth resistor R6, a first operational amplifier U1, a second operational amplifier U2, a third operational amplifier U3, a first triode Q1, a second triode Q2, a first controllable silicon D1, a second diode D2 and a first capacitor C1, wherein one end of the first potentiometer R1, the tap end of the first potentiometer R1 and a power supply are connected, one end of the first potentiometer R1 and one end of the second resistor R2 are connected with the same-phase end of the first operational amplifier U1, one end of the third resistor R3 and one end of the fourth resistor R4 are connected, one end of the first capacitor C1 is connected with one end of the first triode Q1, one end of the fifth resistor R5 is connected with one end of the first triode Q1, one end of the second triode Q1 and one end of the second triode Q2 are connected with one end of the second triode Q2, one end of the second triode Q2 and the other end of the second triode Q2 are connected with the other end of the second triode Q2, one end of the second triode Q2 is connected with the other end of the second triode Q2, the other end of the second triode Q2 is connected with the other end of the second triode Q2, and the other end of the second triode Q2 is connected with the other end of the inverting end of the third triode Q3.
Specifically, the circuit further comprises a seventh resistor R7, an eighth resistor R8, a ninth resistor R9 and a tenth resistor R10, wherein one end of the seventh resistor R7 is connected with the cathode of the third diode D3 and the control electrode of the first silicon controlled rectifier D1, the anode of the third diode D3 is connected with the source electrode of the third MOS transistor Q3, the grid electrode of the third MOS transistor Q3 is connected with the output end of the first operational amplifier U1, the drain electrode of the third MOS transistor Q3 is connected with one end of the eighth resistor R8, the other end of the eighth resistor R8 is connected with one end of the ninth resistor R9 and the power supply, the other end of the ninth resistor R9 is connected with one end of the tenth resistor R10 and the emitter of the second triode Q2, and the other end of the tenth resistor R10, the other end of the seventh resistor R7 and the ground end are connected.
Specifically, the circuit further comprises an eleventh resistor R11, a fourth MOS tube Q4, a fourth diode D4, a second capacitor C2, a first inductor L1 and a first pin PA_1, wherein the grid electrode of the fourth MOS tube Q4 is connected with the emitter electrode of the first triode Q1, the drain electrode of the fourth MOS tube Q4 is connected with the anode of the fourth diode D4 and one end of the first inductor L1, the other end of the first inductor L1 is connected with a power supply, the cathode of the fourth diode D4 is connected with PA1, one end of the second capacitor C2 and one end of the eleventh resistor R11, and the other end of the eleventh resistor R11, the other end of the second capacitor C2, the source electrode of the fourth MOS tube Q4 and the ground terminal are connected.
Specifically, the circuit further comprises a twelfth resistor R12, a thirteenth resistor R13, a fourteenth resistor R14 and a fifteenth resistor R15, one end of the twelfth resistor R12 is connected with a power supply and one end of the fourteenth resistor R14, the other end of the twelfth resistor R12 is connected with the inverting end of the second operational amplifier U2 and one end of the thirteenth resistor R13, the other end of the fourteenth resistor R14 is connected with the inverting end of the third operational amplifier U3 and one end of the fifteenth resistor R15, and the other end of the thirteenth resistor R13 and the other end of the fifteenth resistor R15 are connected with a grounding end.
Specifically, the circuit further comprises a sixteenth resistor R16, one end of the sixteenth resistor R16 is connected with the drain electrode of the third MOS tube Q3, and the other end of the sixteenth resistor R16 is connected with the ground terminal.
Specifically, the circuit further comprises a seventeenth resistor R17, one end of the seventeenth resistor R17 is connected with the collector of the first triode Q1, and the other end of the seventeenth resistor R17 is connected with a power supply.
Specifically, the circuit further comprises an eighteenth resistor R18, one end of the eighteenth resistor R18 is connected with the same-phase end of the second operational amplifier U2, and the other end of the eighteenth resistor R18 is connected with the ground end.
Specifically, the MOS transistor further comprises a nineteenth resistor R19, one end of the nineteenth resistor R19 is connected with the source electrode of the third MOS transistor Q3, and the other end of the nineteenth resistor R19 is connected with the ground terminal.
In this embodiment, a certain mounting power is left in the power supply of the communication module to ensure that the circuit can work normally under the condition of additionally mounting a peripheral circuit or burst use, the reference potential of the inverting terminal of the first operational amplifier U1 is set through the first potentiometer R1 and the second resistor R2, the reference potential of the non-inverting terminal of the first operational amplifier U1 can be changed when the knob of the first potentiometer R1 is regulated, the signal of the inverting terminal of the first operational amplifier U1 is fed back through the fourth resistor R4, the first operational amplifier U1 is used for outputting a start signal, the first operational amplifier U1 skips the third MOS transistor Q3 and the third diode D3 and is directly connected with the control electrode of the first silicon controlled rectifier D1, the second operational amplifier U2 is used for outputting an effective start signal after power transmission (the ineffective start signal is a power supply voltage regulating signal under the normal work of the communication module), the inverting terminal of the second operational amplifier U2 is used for setting the effective potential of the start signal input, the signal of the non-inverting terminal of the third operational amplifier U3 is fed back through the fourth resistor R4, the signal of the inverting terminal of the first operational amplifier U4 is used for outputting a feedback signal to the first triode Q1 through the second MOS transistor Q3 and the third MOS transistor Q3, the first triode Q1 is directly connected with the first triode Q1, the first triode Q1 is output through the second triode Q2, the second triode Q1 is directly connected with the first triode Q1, the second triode Q1 is output after the second triode Q1 is used for outputting the effective start signal after power signal is invalid, meanwhile, the fourth resistor R4 integrates with the first capacitor C1, then the third operational amplifier U3 outputs, and a signal is fed back to the base electrode of the second triode Q2 when the third operational amplifier U3 outputs, so that the second triode Q2 cuts off the current from the anode to the cathode of the first controllable silicon D1, the first controllable silicon D1 is cut off, the first triode Q1 is cut off when the second operational amplifier U2 does not output, the first operational amplifier U1 outputs again, and the potential of the reverse end of the first operational amplifier U1 approaches to the potential of the end of the first potentiometer R1 when outputting, so that the effective regulation interval is reserved, and the maximum load current is increased under the condition that the communication module is prevented from emergency.
In this embodiment, after the adjustment interval of the first operational amplifier U1 is narrowed when an excessive load current occurs in the process of operation of the circuit, after the first operational amplifier U1 is turned on, the control electrode of the first operational amplifier D1 flows back due to the reverse bias of the output end potential of the first operational amplifier U1 along with the internal triode, and the third operational amplifier U3 does not output control, and by adding the third MOS transistor Q3 and the third diode D3, the third MOS transistor Q3 outputs the threshold voltage of the third diode D3 and the lowest conduction current of the first controllable silicon D1, and the eighth resistor R8 limits the current of the third MOS transistor Q3, and the seventh resistor R7 pulls up the control electrode signal of the first controllable silicon D1 when the first controllable silicon D1 is turned on, and the ninth resistor R9 and the tenth resistor R10 divide the voltage to replace the emitter of the second triode Q2 to directly supply power.
After the second operational amplifier U2 of this embodiment outputs the adjustment signal, the signal is fed back to the gate of the fourth MOS transistor Q4 through the first triode Q1, the fourth MOS transistor Q4 is turned off, the power signal at the first inductor L1 end is fed back to the second capacitor C2 and the eleventh resistor R11 through the fourth diode D4, power is supplied to the PA1, the PA1 is used for power output, when the first triode Q1 is turned off, the power signal at the first inductor L1 end is reversely supplied to the second capacitor C2 through the fourth MOS transistor Q4 loop, the fourth diode D4 prevents the second capacitor C2 from flowing back to the front-stage circuit, the twelfth resistor R12 and the thirteenth resistor R13 are used for setting the valid potential threshold of the initial signal input, the fourteenth resistor R14 and the fourteenth resistor R14 are used for the invalid potential threshold of the initial signal input, the sixteenth resistor R16 aims to pull down the drain potential of the third MOS transistor Q3 when the eighth resistor R8 is used for current limiting the third MOS transistor Q3, the seventeenth resistor R17 is used for current limiting the first triode Q1, the eighteenth resistor R18 prevents the second operational amplifier U2 from being output from being used for the ninth virtual circuit.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (8)
1. The power supply circuit for the communication module is characterized by comprising a first potentiometer, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a first operational amplifier, a second operational amplifier, a third operational amplifier, a first triode, a second triode, a first silicon controlled rectifier, a second diode and a first capacitor, wherein one end of the first potentiometer, the tap end of the first potentiometer are connected with a power supply, the other end of the first potentiometer is connected with one end of the second resistor, the same-phase end of the first operational amplifier, the inverting end of the first operational amplifier is connected with the same-phase end of the third operational amplifier, one end of the third resistor, one end of the fourth resistor, one end of the first capacitor, the other end of the fourth resistor is connected with the emitter of the first triode, one end of the fifth resistor, the base of the first triode is connected with the output end of the second operational amplifier, the same-phase end of the second operational amplifier is connected with the anode of the second diode, the cathode of the first silicon controlled rectifier, the anode of the second silicon controlled rectifier is connected with the second triode, the base of the second triode is connected with the output end of the third triode, the second base of the third operational amplifier is connected with the output end of the third triode, the third resistor, the other end of the third resistor is connected with the other end of the third resistor and the other end of the third resistor is connected with the other end of the fifth resistor.
2. The power supply circuit for a communication module according to claim 1, further comprising a seventh resistor, an eighth resistor, a ninth resistor, a tenth resistor, a third MOS transistor, and a third diode, wherein one end of the seventh resistor is connected to a cathode of the third diode, a control electrode of the first thyristor, an anode of the third diode is connected to a source of the third MOS transistor, a gate of the third MOS transistor is connected to an output end of the first operational amplifier, a drain of the third MOS transistor is connected to one end of the eighth resistor, the other end of the eighth resistor is connected to one end of the ninth resistor, a power supply is connected, one end of the ninth resistor is connected to one end of the tenth resistor, an emitter of the second triode, and the other end of the tenth resistor is connected to the other end of the seventh resistor.
3. The power supply circuit for a communication module according to claim 1, further comprising an eleventh resistor, a fourth MOS transistor, a fourth diode, a second capacitor, a first inductor, and a first pin, wherein the gate of the fourth MOS transistor is connected to the emitter of the first triode, the drain of the fourth MOS transistor is connected to the anode of the fourth diode, one end of the first inductor is connected to a power supply, the other end of the first inductor is connected to PA1, one end of the second capacitor, one end of the eleventh resistor, the other end of the second capacitor, the source of the fourth MOS transistor, and the ground terminal.
4. The power supply circuit for a communication module according to claim 1, further comprising a twelfth resistor, a thirteenth resistor, a fourteenth resistor, and a fifteenth resistor, wherein one end of the twelfth resistor is connected to the power source and one end of the fourteenth resistor, the other end of the twelfth resistor is connected to the inverting end of the second operational amplifier and one end of the thirteenth resistor, the other end of the fourteenth resistor is connected to the inverting end of the third operational amplifier and one end of the fifteenth resistor, and the other end of the thirteenth resistor, the other end of the fifteenth resistor are connected to the ground.
5. The power supply circuit for a communication module according to claim 2, further comprising a sixteenth resistor, wherein one end of the sixteenth resistor is connected to the drain of the third MOS transistor, and the other end of the sixteenth resistor is connected to the ground.
6. The power supply circuit for a communication module of claim 1, further comprising a seventeenth resistor having one end connected to the collector of the first transistor and the other end connected to a power source.
7. The power supply circuit for a communication module according to claim 1, further comprising an eighteenth resistor having one end connected to the non-inverting end of the second operational amplifier and the other end connected to the ground.
8. The power supply circuit for a communication module according to claim 1, further comprising a nineteenth resistor, wherein one end of the nineteenth resistor is connected to the source of the third MOS transistor, and the other end of the nineteenth resistor is connected to the ground.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311030551.8A CN116743514B (en) | 2023-08-16 | 2023-08-16 | Power supply circuit of communication module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311030551.8A CN116743514B (en) | 2023-08-16 | 2023-08-16 | Power supply circuit of communication module |
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| Publication Number | Publication Date |
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| CN116743514A true CN116743514A (en) | 2023-09-12 |
| CN116743514B CN116743514B (en) | 2023-11-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311030551.8A Active CN116743514B (en) | 2023-08-16 | 2023-08-16 | Power supply circuit of communication module |
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| CN (1) | CN116743514B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116963480A (en) * | 2023-09-20 | 2023-10-27 | 江苏兴海特钢有限公司 | Welding wire processing equipment converter heat sink |
| CN117060551A (en) * | 2023-10-10 | 2023-11-14 | 深圳戴普森新能源技术有限公司 | Battery protection system |
| CN117559261A (en) * | 2023-11-08 | 2024-02-13 | 江苏新核合金科技有限公司 | Heat dissipation system of power distribution cabinet of numerical control milling machine |
| CN117666411A (en) * | 2023-11-08 | 2024-03-08 | 江苏迈奇重工机械有限公司 | Stone cutting control system |
| CN117792369A (en) * | 2024-02-26 | 2024-03-29 | 深圳市南方智控科技有限公司 | Key detection circuit of electronic equipment |
| CN117650494B (en) * | 2024-01-29 | 2024-05-14 | 深圳市蔚来芯科技有限公司 | Electrostatic protection circuit and electrostatic protection method for display screen chip |
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| CN117060551B (en) * | 2023-10-10 | 2024-01-30 | 深圳戴普森新能源技术有限公司 | Battery protection system |
| CN117559261A (en) * | 2023-11-08 | 2024-02-13 | 江苏新核合金科技有限公司 | Heat dissipation system of power distribution cabinet of numerical control milling machine |
| CN117666411A (en) * | 2023-11-08 | 2024-03-08 | 江苏迈奇重工机械有限公司 | Stone cutting control system |
| CN117559261B (en) * | 2023-11-08 | 2024-04-23 | 江苏新核合金科技有限公司 | Heat dissipation system of power distribution cabinet of numerical control milling machine |
| CN117650494B (en) * | 2024-01-29 | 2024-05-14 | 深圳市蔚来芯科技有限公司 | Electrostatic protection circuit and electrostatic protection method for display screen chip |
| CN117792369A (en) * | 2024-02-26 | 2024-03-29 | 深圳市南方智控科技有限公司 | Key detection circuit of electronic equipment |
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| Publication number | Publication date |
|---|---|
| CN116743514B (en) | 2023-11-07 |
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