CN217087882U - Signal receiving and processing circuit - Google Patents
Signal receiving and processing circuit Download PDFInfo
- Publication number
- CN217087882U CN217087882U CN202220845394.0U CN202220845394U CN217087882U CN 217087882 U CN217087882 U CN 217087882U CN 202220845394 U CN202220845394 U CN 202220845394U CN 217087882 U CN217087882 U CN 217087882U
- Authority
- CN
- China
- Prior art keywords
- module
- resistor
- capacitor
- received signal
- band
- 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.)
- Active
Links
Images
Landscapes
- Amplifiers (AREA)
Abstract
The utility model discloses a signal reception processing circuit relates to the signal processing field, and this signal reception processing circuit includes: the power supply module is used for supplying 220V alternating current; the voltage reduction rectification filtering module is used for converting 220V alternating current into direct current; a voltage stabilization module for supplying a constant voltage; the first-stage amplification module is used for carrying out first amplification on the received signal, and the amplified received signal is output to the second-stage amplification module; the second-stage amplification module is used for amplifying the received signal subjected to the first-stage amplification again, and outputting the received signal subjected to the secondary amplification to the band-pass filtering module; compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a carry out the processing that the one-level enlargies module, second grade enlargies the module to the received signal, guarantee signal strength, handle through band-pass filtering module, reduce the interference, through control output module, guarantee according to the control signal intensity of received signal output enough.
Description
Technical Field
The utility model relates to a signal processing field specifically is a signal reception processing circuit.
Background
Communication systems are divided into analog communication systems and digital communication systems depending on whether an analog signal or a digital signal is transmitted in the communication system. If an analog signal is sent to the transmission system, the communication is analog. Most telephone and broadcast television systems in use today are analog communication systems.
The control signal is often used to directly control the device to operate according to the received signal, and the signal strength is questioned, if the received signal is a triangular wave, the device can be controlled to operate above the middle value, and the signal near the middle value makes the control questionable, which needs to be improved.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a signal reception processing circuit to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
a signal reception processing circuit comprising:
the power supply module is used for supplying 220V alternating current;
the voltage reduction rectification filtering module is used for converting 220V alternating current into direct current;
a voltage stabilization module for supplying a constant voltage;
the first-stage amplification module is used for carrying out first amplification on the received signal, and the amplified received signal is output to the second-stage amplification module;
the second-stage amplification module is used for amplifying the received signal subjected to the first-stage amplification again, and outputting the received signal subjected to the secondary amplification to the band-pass filtering module;
the band-pass filtering module is used for carrying out band-pass filtering processing on the received signals subjected to the secondary amplification, and outputting the processed received signals to the control output module;
the control output module is used for comparing the received signal with the reference voltage and then outputting a control signal;
the power supply module is connected with the voltage reduction rectification filter module, the voltage reduction rectification filter module is connected with the voltage stabilization module, the voltage stabilization module is connected with the first-level amplification module and the control output module, the first-level amplification module is connected with the second-level amplification module, the second-level amplification module is connected with the band-pass filter module, and the band-pass filter module is connected with the control output module.
As a further aspect of the present invention: the first-stage amplification module comprises a triode V1, a resistor R2, a resistor R3, a capacitor C3, a resistor R4 and a capacitor C4, a base input of the triode V1 receives signals, a collector of the triode V1 is connected with the resistor R3 and the capacitor C3, the other end of the resistor R3 is connected with a resistor R2, the other end of the resistor R2 is connected with the voltage stabilizing module, the other end of the capacitor C3 is connected with the second-stage amplification module, an emitter of the triode V1 is connected with the resistor R4 and the capacitor C4, the other end of the resistor R4 is grounded, and the other end of the capacitor C4 is grounded.
As a further aspect of the present invention: the secondary amplification module comprises an amplifier U1, a capacitor C3, a resistor R4 and a resistor R5, the in-phase end of the amplifier U1 is connected with the primary amplification module, the inverting end of the amplifier U1 is connected with the resistor R4 and the resistor R5, the other end of the resistor R4 is connected with the capacitor C3, the other end of the capacitor C3 is grounded, and the other end of the resistor R5 is connected with the output end of the amplifier U1 and the band-pass filtering module.
As a further aspect of the present invention: the band-pass filtering module comprises an inductor L1, a capacitor C5, a resistor R6 and a capacitor C6, one end of the inductor L1 is connected with the secondary amplification module, the other end of the inductor L1 is connected with the capacitor C5, the other end of the capacitor C5 is connected with the resistor R6 and the capacitor C6, the other end of the resistor R6 is grounded, and the other end of the capacitor C6 is connected with the control output module.
As a further aspect of the present invention: the control output module comprises a resistor R7, a resistor R8, a resistor R9, a resistor R10, a triode V2 and an amplifier U2, one end of the resistor R7 is connected with the resistor R8, the base of the triode V2 and the band-pass filtering module, the other end of the resistor R7 is grounded, the other end of the resistor R8 is connected with the voltage stabilizing module, the collector of the triode V2 and the resistor R9, the emitter of the triode V2 is connected with the same-phase end of the amplifier U2, the other end of the resistor R9 is connected with the inverting end of the amplifier U2 and the resistor R10, and the other end of the resistor R10 is grounded.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a carry out the processing that the one-level enlargies module, second grade enlargies the module to the received signal, guarantee signal strength, handle through band-pass filtering module, reduce the interference, through control output module, guarantee according to the control signal intensity of received signal output enough.
Drawings
Fig. 1 is a schematic diagram of a signal receiving and processing circuit.
Fig. 2 is a circuit diagram of a signal receiving and processing circuit.
Fig. 3 is a schematic diagram of a triangular wave.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present invention based on the embodiments of the present invention.
Referring to fig. 1, a signal receiving and processing circuit includes:
the power supply module is used for supplying 220V alternating current;
the voltage reduction rectification filtering module is used for converting 220V alternating current into direct current;
a voltage stabilization module for supplying a constant voltage;
the first-stage amplification module is used for carrying out first amplification on the received signal, and the amplified received signal is output to the second-stage amplification module;
the second-stage amplification module is used for amplifying the received signal subjected to the first-stage amplification again, and outputting the received signal subjected to the secondary amplification to the band-pass filtering module;
the band-pass filtering module is used for carrying out band-pass filtering processing on the received signals subjected to the secondary amplification, and outputting the processed received signals to the control output module;
the control output module is used for comparing the received signal with the reference voltage and then outputting a control signal;
the power supply module is connected with the voltage reduction rectification filter module, the voltage reduction rectification filter module is connected with the voltage stabilization module, the voltage stabilization module is connected with the first-level amplification module and the control output module, the first-level amplification module is connected with the second-level amplification module, the second-level amplification module is connected with the band-pass filter module, and the band-pass filter module is connected with the control output module.
In a specific embodiment: the power supply module is externally connected with 220V alternating current for supplying power, the voltage reduction rectification filtering module completes the processing of the 220V alternating current through a transformer W, a rectifier T and a filter (an inductor L1, a capacitor C1 and a capacitor C2) to enable the 220V alternating current to be changed into low-voltage direct current, and the voltage stabilizing module outputs constant voltage through a voltage stabilizer U1.
In this embodiment: referring to fig. 2, the primary amplification module includes a transistor V1, a resistor R2, a resistor R3, a capacitor C3, a resistor R4, and a capacitor C4, a base input of the transistor V1 receives a signal, a collector of the transistor V1 is connected to the resistor R3 and the capacitor C3, the other end of the resistor R3 is connected to the resistor R2, the other end of the resistor R2 is connected to the voltage stabilizing module, the other end of the capacitor C3 is connected to the secondary amplification module, an emitter of the transistor V1 is connected to the resistor R4 and the capacitor C4, the other end of the resistor R4 is grounded, and the other end of the capacitor C4 is grounded.
The received signal VIN is amplified by a transistor V1, and then is input to the non-inverting terminal of the amplifier U1 through a capacitor C3, wherein the amplification factor is based on the type of the transistor V1.
In this embodiment: referring to fig. 2, the second-stage amplification module includes an amplifier U1, a capacitor C3, a resistor R4, and a resistor R5, the same-phase end of the amplifier U1 is connected to the first-stage amplification module, the inverting end of the amplifier U1 is connected to the resistor R4 and the resistor R5, the other end of the resistor R4 is connected to the capacitor C3, the other end of the capacitor C3 is grounded, and the other end of the resistor R5 is connected to the output end of the amplifier U1 and the band-pass filter module.
The amplifier U1 amplifies the received signal after the first-stage amplification again by the amplification factor of (R5+ R4)/R4.
In this embodiment: referring to fig. 2, the band-pass filtering module includes an inductor L1, a capacitor C5, a resistor R6, and a capacitor C6, one end of the inductor L1 is connected to the secondary amplifying module, the other end of the inductor L1 is connected to the capacitor C5, the other end of the capacitor C5 is connected to the resistor R6 and the capacitor C6, the other end of the resistor R6 is grounded, and the other end of the capacitor C6 is connected to the control output module.
The inductor L1, the capacitor C5 and the capacitor C6 form a series resonance circuit, and band-pass filtering processing is carried out on the received signals after the two-stage amplification, so that clutter is filtered.
In this embodiment: referring to fig. 2 and fig. 3, the control output module includes a resistor R7, a resistor R8, a resistor R9, a resistor R10, a transistor V2, and an amplifier U2, one end of the resistor R7 is connected to the resistor R8, a base of the transistor V2, and the band-pass filter module, the other end of the resistor R7 is grounded, the other end of the resistor R8 is connected to the regulator module, a collector of the transistor V2, and the resistor R9, an emitter of the transistor V2 is connected to a same-phase end of the amplifier U2, the other end of the resistor R9 is connected to an inverting end of the amplifier U2 and the resistor R10, and the other end of the resistor R10 is grounded.
Taking the triangular wave in fig. 3 as an example, if the received signal is above the dotted line, the control device operates, and if the received signal is below the dotted line, the device does not operate, so that it is difficult to ensure that the signal can drive the control device in the vicinity of the dotted line.
The processed received signal is output to the non-inverting terminal of the amplifier U2, and the reference voltage (the voltage across the resistor R10) is set based on the broken line, so that when the received signal is above the broken line, the amplifier U2 outputs a control signal at a high level to control the operation of the corresponding device, and when the received signal is below the broken line, the amplifier U2 outputs a low level to not control the operation of the corresponding device.
The utility model discloses a theory of operation is: the power supply module supplies 220V alternating current, the voltage reduction rectification filter module converts the 220V alternating current into direct current, the voltage stabilization module supplies constant voltage, the first-stage amplification module amplifies the received signal for the first time, the amplified received signal is output to the second-stage amplification module, the second-stage amplification module amplifies the received signal after the first-stage amplification again, the received signal after the second-stage amplification is output to the band-pass filter module, the band-pass filter module carries out band-pass filter processing on the received signal after the second-stage amplification, the processed received signal is output to the control output module, and the control output module compares the received signal with reference voltage and outputs a control signal.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. 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.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (5)
1. A signal reception processing circuit characterized by:
the signal receiving processing circuit includes:
the power supply module is used for supplying 220V alternating current;
the voltage reduction rectification filtering module is used for converting 220V alternating current into direct current;
a voltage stabilization module for supplying a constant voltage;
the first-stage amplification module is used for carrying out first amplification on the received signal, and the amplified received signal is output to the second-stage amplification module;
the second-stage amplification module is used for amplifying the received signal subjected to the first-stage amplification again, and outputting the received signal subjected to the secondary amplification to the band-pass filtering module;
the band-pass filtering module is used for carrying out band-pass filtering processing on the received signals subjected to the secondary amplification, and outputting the processed received signals to the control output module;
the control output module is used for comparing the received signal with the reference voltage and then outputting a control signal;
the power supply module is connected with the voltage reduction rectification filter module, the voltage reduction rectification filter module is connected with the voltage stabilization module, the voltage stabilization module is connected with the first-level amplification module and the control output module, the first-level amplification module is connected with the second-level amplification module, the second-level amplification module is connected with the band-pass filter module, and the band-pass filter module is connected with the control output module.
2. The signal receiving and processing circuit of claim 1, wherein the first-stage amplifying module includes a transistor V1, a resistor R2, a resistor R3, a capacitor C3, a resistor R4, and a capacitor C4, a base input of the transistor V1 receives a signal, a collector of the transistor V1 is connected to the resistor R3 and the capacitor C3, the other end of the resistor R3 is connected to the resistor R2, the other end of the resistor R2 is connected to the voltage stabilizing module, the other end of the capacitor C3 is connected to the second-stage amplifying module, an emitter of the transistor V1 is connected to the resistor R4 and the capacitor C4, the other end of the resistor R4 is grounded, and the other end of the capacitor C4 is grounded.
3. The signal receiving and processing circuit of claim 1, wherein the secondary amplification module comprises an amplifier U1, a capacitor C3, a resistor R4 and a resistor R5, the non-inverting terminal of the amplifier U1 is connected to the primary amplification module, the inverting terminal of the amplifier U1 is connected to the resistor R4 and the resistor R5, the other terminal of the resistor R4 is connected to the capacitor C3, the other terminal of the capacitor C3 is grounded, and the other terminal of the resistor R5 is connected to the output terminal of the amplifier U1 and the band-pass filter module.
4. The signal receiving and processing circuit of claim 1, wherein the band-pass filtering module comprises an inductor L1, a capacitor C5, a resistor R6, and a capacitor C6, one end of the inductor L1 is connected to the secondary amplification module, the other end of the inductor L1 is connected to the capacitor C5, the other end of the capacitor C5 is connected to the resistor R6 and the capacitor C6, the other end of the resistor R6 is grounded, and the other end of the capacitor C6 is connected to the control output module.
5. The signal receiving and processing circuit as claimed in claim 1 or 4, wherein the control output module comprises a resistor R7, a resistor R8, a resistor R9, a resistor R10, a transistor V2 and an amplifier U2, one end of the resistor R7 is connected with a resistor R8, a base of the transistor V2 and a band-pass filter module, the other end of the resistor R7 is grounded, the other end of the resistor R8 is connected with the voltage stabilizing module, a collector of the transistor V2 and a resistor R9, an emitter of the transistor V2 is connected with a non-inverting terminal of the amplifier U2, the other end of the resistor R9 is connected with an inverting terminal of the amplifier U2 and a resistor R10, and the other end of the resistor R10 is grounded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220845394.0U CN217087882U (en) | 2022-04-13 | 2022-04-13 | Signal receiving and processing circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220845394.0U CN217087882U (en) | 2022-04-13 | 2022-04-13 | Signal receiving and processing circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217087882U true CN217087882U (en) | 2022-07-29 |
Family
ID=82499940
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220845394.0U Active CN217087882U (en) | 2022-04-13 | 2022-04-13 | Signal receiving and processing circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217087882U (en) |
-
2022
- 2022-04-13 CN CN202220845394.0U patent/CN217087882U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101645656B (en) | Current peak value compression method and control circuit adopting same | |
| CN204498130U (en) | Photoelectric switching circuit and optical signal receiver | |
| CN217087882U (en) | Signal receiving and processing circuit | |
| CN105451137A (en) | User equipment wake-up method and device | |
| CN109889201A (en) | Signal acquisition circuit and measuring instrument | |
| CN215452517U (en) | Efficient active filter circuit | |
| CN217159659U (en) | Signal amplification circuit based on switch tube | |
| CN206212246U (en) | A kind of networking sound equipment and its system | |
| CN210405304U (en) | High-voltage power line carrier coupling system | |
| CN201467268U (en) | Video anti-jammer | |
| CN209545447U (en) | A kind of magnetic isolation feedback circuit | |
| CN210351093U (en) | V-band power amplifying circuit | |
| CN115378449B (en) | Switching power supply frequency self-adaptive adjusting method and system and electronic equipment thereof | |
| CN214850999U (en) | Output current and voltage regulating circuit based on wireless mode and adapter | |
| CN102195489B (en) | Current peak compression method for switching circuit | |
| CN211123680U (en) | Remote intelligent control terminal based on 5G communication | |
| CN216670719U (en) | Remote communication receiving circuit | |
| CN214591941U (en) | Standby starting circuit | |
| CN109639286A (en) | A kind of IRIG-B adaptive decoding circuit and method | |
| CN214675076U (en) | VR parasitic oscillation elimination filter circuit | |
| CN211744328U (en) | Fiber laser power supply circuit capable of providing multiple power supply voltages | |
| CN218570221U (en) | Analog signal forwarding circuit and electronic equipment | |
| CN215991190U (en) | High noise suppression audio signal transmission circuit | |
| CN112769453B (en) | Signal receiving and transmitting control method of Beidou active antenna | |
| CN218729399U (en) | Circuit for sniffing and sending communication data for wireless charging communication |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |