CN219658223U - 433MHz wireless signal transmitting circuit - Google Patents
433MHz wireless signal transmitting circuit Download PDFInfo
- Publication number
- CN219658223U CN219658223U CN202321033364.0U CN202321033364U CN219658223U CN 219658223 U CN219658223 U CN 219658223U CN 202321033364 U CN202321033364 U CN 202321033364U CN 219658223 U CN219658223 U CN 219658223U
- Authority
- CN
- China
- Prior art keywords
- 433mhz
- signal
- signal transmitting
- circuit
- capacitor
- 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
- 239000003990 capacitor Substances 0.000 claims description 69
- 230000008054 signal transmission Effects 0.000 claims description 11
- 239000013078 crystal Substances 0.000 claims description 10
- 238000004519 manufacturing process Methods 0.000 abstract description 10
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Abstract
The utility model provides a 433MHz wireless signal transmitting circuit, which comprises a 3V power supply, a 433MHz signal modulating circuit and a 433MHz signal transmitting circuit, wherein the 3V power supply is in power supply connection with the 433MHz signal modulating circuit, the 433MHz signal transmitting circuit and an MCU of a 433MHz wireless remote controller, the input end of the 433MHz signal modulating circuit is connected with the output end of the MCU of the 433MHz wireless remote controller, the output end of the 433MHz signal modulating circuit is connected with the input end of the 433MHz signal transmitting circuit, and the 433MHz signal transmitting circuit is provided with a 433MHz signal transmitting antenna ANT. The beneficial effects of the utility model are as follows: different 433MHz wireless remote controllers MCU can be used for 433MHz wireless transmitting signals, and the production cost of the 433MHz wireless remote controllers is reduced.
Description
Technical Field
The utility model relates to the technical field of transmitting circuits, in particular to a 433MHz wireless signal transmitting circuit.
Background
A433 MHz wireless transmitting circuit is a circuit for converting digital signals into a radio form and transmitting the radio form to the air through a 433MHz frequency band to complete signal interaction. In the application scene, the remote controller mainly adopts a 433MHz wireless transmitting circuit, so that low-cost wireless communication and omnibearing remote control are realized. At present, a plurality of 433MHz wireless remote controllers in the market all adopt integrated chips, namely, the chips contain a main control module and a transmitting module, so that the production cost of the 433MHz wireless remote controllers is increased, and mass production of the 433MHz wireless remote controllers is not facilitated.
Disclosure of Invention
In order to solve the problems in the prior art, the utility model provides the 433MHz wireless signal transmitting circuit which is arranged in the 433MHz wireless remote controller, and through a 3V power supply, a 433MHz signal modulating circuit and a 433MHz signal transmitting circuit which are mutually matched, different 433MHz wireless remote controllers MCU can be used for carrying out 433MHz wireless signal transmission, the requirements of different key remote controllers are met, the user experience is more convenient, the stability and the electrical performance index of the 433MHz wireless remote controller can meet the use requirements of the 433MHz wireless remote controller under various application scenes, meanwhile, the utility model meets the electromagnetic interference specifications of various countries, the production cost of the 433MHz wireless remote controller is reduced, and the problem that the 433MHz wireless remote controller in the prior art adopts an integral chip and has high production cost is solved.
The utility model provides a 433MHz wireless signal transmitting circuit which is arranged in a 433MHz wireless remote controller and comprises a 3V power supply, a 433MHz signal modulating circuit and a 433MHz signal transmitting circuit, wherein the 3V power supply is in power supply connection with the 433MHz signal modulating circuit, the 433MHz signal transmitting circuit and an MCU of the 433MHz wireless remote controller, the input end of the 433MHz signal modulating circuit is connected with the output end of the MCU of the 433MHz wireless remote controller, the output end of the 433MHz signal modulating circuit is connected with the input end of the 433MHz signal transmitting circuit, the 433MHz signal transmitting circuit is provided with a 433MHz signal transmitting antenna ANT, and the 433MHz signal modulating circuit can convert information received by the MCU of the 433MHz wireless remote controller into 433MHz signals and output the 433MHz signals to the 433MHz signal transmitting circuit and the 433MHz signal transmitting antenna ANT to transmit the 433MHz signals.
The utility model is further improved, a signal modulation chip U1 is arranged in the 433MHz signal modulation circuit, wherein the signal modulation chip U1 is provided with 8 pins, the 1 st pin of the signal modulation chip U1 is connected with a 3V power supply, the 3 rd, 4 th, 6 th and 7 th pins of the signal modulation chip U1 are connected with the output end of an MCU of the 433MHz wireless remote controller, the 5 th pin of the signal modulation chip U1 is connected with the input end of the 433MHz signal transmission circuit, and the 8 th pin of the signal modulation chip U1 is grounded.
The utility model is further improved, a signal transmitting chip U2, an inductor L2, a capacitor C3, a capacitor C4, a capacitor C5, a capacitor C6, a capacitor C7 and a capacitor C8 are arranged in the 433MHz signal transmitting circuit, wherein the signal transmitting chip U2 is provided with 6 pins, the 3 rd pin of the signal transmitting chip U2 is connected with one end of the capacitor C3, the other end of the capacitor C3 is connected with one end of the inductor L2, one end of the capacitor C7 and one end of the capacitor C8, the other end of the inductor L2 is connected with one end of the capacitor C4 and one end of the capacitor C5, the other end of the capacitor C4 is connected with the 433MHz signal transmitting antenna ANT and one end of the capacitor C6, and the other end of the capacitor C5, the other end of the capacitor C6, the other end of the capacitor C7 and the other end of the capacitor C8 are grounded.
The utility model is further improved, an inductor L1, a capacitor C1 and a capacitor C2 are also arranged in the 433MHz signal transmitting circuit, wherein the 3 rd pin of the signal transmitting chip U2 is connected with one end of the inductor L1, the other end of the inductor L1 is connected with one end of the capacitor C1, one end of the capacitor C2 and the 3V power supply, and the other end of the capacitor C1, the other end of the capacitor C2 and the 2 nd pin of the signal transmitting chip U2 are grounded.
According to the utility model, a crystal oscillator Y1 is further arranged in the 433MHz signal transmitting circuit, the 1 st pin of the signal transmitting chip U2 is connected with one end of the crystal oscillator Y1, the 6 th pin of the signal transmitting chip U2 is connected with the other end of the crystal oscillator Y1, the 4 th pin of the signal transmitting chip U2 is connected with the 5 th pin of the signal modulating chip U1, and the 5 th pin of the signal transmitting chip U2 is connected with the 3V power supply.
The utility model is further improved, and the model U2 of the signal transmitting chip is WT06.
According to the utility model, the value of the inductor L2 is 56nH, the capacitance value of the capacitor C3 is 3.6pF, the capacitance value of the capacitor C4 is 3.6pF, the capacitance value of the capacitor C5 is 4.3pF, and the capacitance value of the capacitor C3 is 6.8pF.
According to the utility model, the value of the inductor L1 is 330nH, and the capacitance value of the capacitor C1 is 1uF.
The utility model is further improved, and the 433MHz signal transmitting antenna ANT is a common lead with 1/4 wavelength or an on-board PCB antenna.
The utility model is further improved, and the model of MCU of 433MHz wireless remote controller is WT16PA6.
Compared with the prior art, the utility model has the beneficial effects that: the utility model provides a 433 MHz's wireless signal transmitting circuit sets up in 433MHz wireless remote controller, through mutually supporting 3V power supply, 433MHz signal modulation circuit and 433MHz signal transmitting circuit, 433MHz signal modulation circuit can be with receiving the information conversion from 433MHz wireless remote controller's MCU and be 433MHz signal and export to 433MHz signal transmitting circuit and be launched by 433MHz signal transmitting antenna ANT, can use different 433MHz wireless remote controller MCU to carry out 433MHz wireless transmitting signal, satisfy the demand of different button remote controllers, let the user experience more convenient, its stability and electrical property index can satisfy 433MHz wireless remote controller's user demand under all kinds of application scenes, simultaneously accord with the electromagnetic interference norm of each country, 433MHz wireless remote controller's manufacturing cost has been reduced, 433MHz wireless remote controller all adopts integrative chip manufacturing cost's problem in the prior art has been solved.
Drawings
In order to more clearly illustrate the utility model or the solutions of the prior art, a brief description will be given below of the drawings used in the description of the embodiments or the prior art, it being obvious that the drawings in the description below are some embodiments of the utility model and that other drawings can be obtained from them without the inventive effort of a person skilled in the art.
FIG. 1 is a schematic block diagram of a 433MHz wireless signal transmitting circuit of the present utility model;
FIG. 2 is a circuit diagram of a 433MHz signal modulation circuit of the present utility model;
fig. 3 is a circuit diagram of the 433MHz signal transmitting circuit of the present utility model.
Detailed Description
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs; the terminology used in the description of the applications herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model; the terms "comprising" and "having" and any variations thereof in the description of the utility model and the claims and the description of the drawings above are intended to cover a non-exclusive inclusion. The terms first, second and the like in the description and in the claims or in the above-described figures, are used for distinguishing between different objects and not necessarily for describing a sequential or chronological order.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the utility model. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.
In order to make the person skilled in the art better understand the solution of the present utility model, the technical solution of the embodiment of the present utility model will be clearly and completely described below with reference to the accompanying drawings.
As shown in figures 1-3, the 433MHz wireless signal transmitting circuit provided by the utility model is arranged in a 433MHz wireless remote controller and comprises a 3V power supply, a 433MHz signal modulating circuit and a 433MHz signal transmitting circuit, wherein the 3V power supply is in power supply connection with the 433MHz signal modulating circuit, the 433MHz signal transmitting circuit and an MCU of the 433MHz wireless remote controller, the input end of the 433MHz signal modulating circuit is connected with the output end of the MCU of the 433MHz wireless remote controller, the output end of the 433MHz signal modulating circuit is connected with the input end of the 433MHz signal transmitting circuit, and the 433MHz signal transmitting circuit is provided with a 433MHz signal transmitting antenna ANT. In this embodiment, the 433MHz signal transmitting antenna ANT is a common wire with 1/4 wavelength or an onboard PCB antenna, the model of the MCU of the 433MHz wireless remote controller is WT16PA6, the 433MHz signal modulating circuit can convert information received from the MCU of the 433MHz wireless remote controller into 433MHz signals and output the 433MHz signals to the 433MHz signal transmitting circuit to be transmitted by the 433MHz signal transmitting antenna ANT, different 433MHz wireless remote controller MCUs can be used for carrying out 433MHz wireless transmitting signals, requirements of different key remote controllers are met, user experience is more convenient, stability and electrical performance indexes of the 433MHz wireless remote controller can meet use requirements of the 433MHz wireless remote controller under various application scenes, electromagnetic interference specifications of various countries are met, and production cost of the 433MHz wireless remote controller is reduced.
As shown in FIG. 2, a signal modulation chip U1 is arranged in the 433MHz signal modulation circuit, wherein the signal modulation chip U1 is provided with 8 pins, the 1 st pin of the signal modulation chip U1 is connected with a 3V power supply, the 3 rd, 4 th, 6 th and 7 th pins of the signal modulation chip U1 are connected with the output end of the MCU of the 433MHz wireless remote controller, the 5 th pin of the signal modulation chip U1 is connected with the input end of the 433MHz signal transmission circuit, and the 8 th pin of the signal modulation chip U1 is grounded. In this embodiment, the MCU of the 433MHz wireless remote controller transmits the required data signals to the 433MHz signal modulation circuit, and the 433MHz signal modulation circuit converts the data signals into 433MHz signals and transmits the 433MHz signals to the 433MHz signal transmission circuit.
As shown in fig. 3, a signal transmitting chip U2, an inductor L2, a capacitor C3, a capacitor C4, a capacitor C5, a capacitor C6, a capacitor C7 and a capacitor C8 are arranged in the 433MHz signal transmitting circuit, wherein the signal transmitting chip U2 is provided with 6 pins, the 3 rd pin of the signal transmitting chip U2 is connected with one end of the capacitor C3, the other end of the capacitor C3 is connected with one end of the inductor L2, one end of the capacitor C7 and one end of the capacitor C8, the other end of the inductor L2 is connected with one end of the capacitor C4 and one end of the capacitor C5, the other end of the capacitor C4 is connected with a 433MHz signal transmitting antenna ANT and one end of the capacitor C6, and the other end of the capacitor C5, the other end of the capacitor C6, the other end of the capacitor C7 and the other end of the capacitor C8 are grounded; an inductor L1, a capacitor C1 and a capacitor C2 are further arranged in the 433MHz signal transmitting circuit, wherein the 3 rd pin of the signal transmitting chip U2 is connected with one end of the inductor L1, the other end of the inductor L1 is connected with one end of the capacitor C1, one end of the capacitor C2 and a 3V power supply, and the other end of the capacitor C1, the other end of the capacitor C2 and the 2 nd pin of the signal transmitting chip U2 are grounded; a crystal oscillator Y1 is further arranged in the 433MHz signal transmitting circuit, the 1 st pin of the signal transmitting chip U2 is connected with one end of the crystal oscillator Y1, the 6 th pin of the signal transmitting chip U2 is connected with the other end of the crystal oscillator Y1, the 4 th pin of the signal transmitting chip U2 is connected with the 5 th pin of the signal modulating chip U1, and the 5 th pin of the signal transmitting chip U2 is connected with a 3V power supply. The signal transmitting chip U2 is of model WT06, the inductance L2 is of 56nH, the capacitance of the capacitor C3 is 3.6pF, the capacitance of the capacitor C4 is 3.6pF, the capacitance of the capacitor C5 is 4.3pF, the capacitance of the capacitor C3 is 6.8pF, the inductance L1 is of 330nH, and the capacitance of the capacitor C1 is 1uF. In this embodiment, the working frequency of the 433MHz signal transmitting circuit is set to 13.560MHz by the crystal oscillator Y1, so that the transmitting frequency of the 433MHz signal transmitting antenna ANT is accurately modulated to 433MHz frequency, when the MCU of the 433MHz wireless remote controller transmits protocol data to the 433MHz signal modulating circuit, the 433MHz signal modulating circuit converts the protocol data into a 433MHz signal through processing, then transmits the 433MHz signal to the 433MHz signal transmitting circuit, and finally transmits the 433MHz signal to the air through the 433MHz signal transmitting antenna ANT.
From the above, the utility model provides a 433MHz wireless signal transmitting circuit, which is arranged in a 433MHz wireless remote controller, through a 3V power supply, a 433MHz signal modulating circuit and a 433MHz signal transmitting circuit which are mutually matched, the 433MHz signal modulating circuit can convert information received from an MCU of the 433MHz wireless remote controller into 433MHz signals and output the 433MHz signals to the 433MHz signal transmitting circuit to be transmitted by a 433MHz signal transmitting antenna ANT, different 433MHz wireless remote controllers MCU can be used for carrying out 433MHz wireless transmission signals, the requirements of different key remote controllers are met, the user experience is more convenient, the stability and the electrical performance index can meet the use requirements of the 433MHz wireless remote controller in various application scenes, meanwhile, the electromagnetic interference specification of each country is met, the production cost of the 433MHz wireless remote controller is reduced, and the problem that the 433MHz wireless remote controller in the prior art adopts an integral chip to have high production cost is solved.
The above embodiments are preferred embodiments of the present utility model, and are not intended to limit the scope of the present utility model, which includes but is not limited to the embodiments, and equivalent modifications according to the present utility model are within the scope of the present utility model.
Claims (10)
1. A433 MHz wireless signal transmitting circuit is arranged in a 433MHz wireless remote controller, which is characterized in that: the wireless remote control device comprises a 3V power supply, a 433MHz signal modulation circuit and a 433MHz signal transmission circuit, wherein the 3V power supply is in power supply connection with the 433MHz signal modulation circuit and an MCU of the 433MHz wireless remote control, the input end of the 433MHz signal modulation circuit is connected with the output end of the MCU of the 433MHz wireless remote control, the output end of the 433MHz signal modulation circuit is connected with the input end of the 433MHz signal transmission circuit, the 433MHz signal transmission circuit is provided with a 433MHz signal transmission antenna ANT, and the 433MHz signal modulation circuit can convert information received from the MCU of the 433MHz wireless remote control into 433MHz signals and output the 433MHz signals to the 433MHz signal transmission circuit to be transmitted by the 433MHz signal transmission antenna ANT.
2. The 433MHz wireless signal transmitting circuit of claim 1, wherein: the 433MHz signal modulation circuit is internally provided with a signal modulation chip U1, wherein the signal modulation chip U1 is provided with 8 pins, the 1 st pin of the signal modulation chip U1 is connected with a 3V power supply, the 3 rd, 4 th, 6 th and 7 th pins of the signal modulation chip U1 are connected with the output end of an MCU of the 433MHz wireless remote controller, the 5 th pin of the signal modulation chip U1 is connected with the input end of the 433MHz signal transmission circuit, and the 8 th pin of the signal modulation chip U1 is grounded.
3. The 433MHz wireless signal transmitting circuit of claim 2, wherein: be equipped with signal emission chip U2, inductance L2, electric capacity C3, electric capacity C4, electric capacity C5, electric capacity C6, electric capacity C7 and electric capacity C8 in the 433MHz signal emission circuit, wherein, signal emission chip U2 is equipped with 6 pins, signal emission chip U2's 3 rd pin with electric capacity C3's one end links to each other, electric capacity C3's the other end with inductance L2's one end electric capacity C7's one end electric capacity C8's one end links to each other, electric capacity L2's the other end with electric capacity C4's one end electric capacity C5's one end links to each other, electric capacity C4's the other end with 433MHz signal emission antenna ANT the one end of electric capacity C6 links to each other, electric capacity C5's the other end electric capacity C6's the other end, electric capacity C7's the other end, electric capacity C8's the other end ground.
4. A 433MHz wireless signal transmitting circuit according to claim 3, wherein: the 433MHz signal transmitting circuit is also internally provided with an inductor L1, a capacitor C1 and a capacitor C2, wherein the 3 rd pin of the signal transmitting chip U2 is connected with one end of the inductor L1, the other end of the inductor L1 is connected with one end of the capacitor C1, one end of the capacitor C2 and the 3V power supply, and the other end of the capacitor C1, the other end of the capacitor C2 and the 2 nd pin of the signal transmitting chip U2 are grounded.
5. The 433MHz wireless signal transmitting circuit of claim 4, wherein: the 433MHz signal transmitting circuit is internally provided with a crystal oscillator Y1, the 1 st pin of the signal transmitting chip U2 is connected with one end of the crystal oscillator Y1, the 6 th pin of the signal transmitting chip U2 is connected with the other end of the crystal oscillator Y1, the 4 th pin of the signal transmitting chip U2 is connected with the 5 th pin of the signal modulating chip U1, and the 5 th pin of the signal transmitting chip U2 is connected with the 3V power supply.
6. The 433MHz wireless signal transmitting circuit of claim 5, wherein: the model U2 of the signal transmitting chip is WT06.
7. The 433MHz wireless signal transmitting circuit of claim 6, wherein: the value of the inductor L2 is 56nH, the capacitance value of the capacitor C3 is 3.6pF, the capacitance value of the capacitor C4 is 3.6pF, the capacitance value of the capacitor C5 is 4.3pF, and the capacitance value of the capacitor C3 is 6.8pF.
8. The 433MHz wireless signal transmitting circuit of claim 7, wherein: the value of the inductance L1 is 330nH, and the capacitance value of the capacitor C1 is 1uF.
9. The 433MHz wireless signal transmitting circuit of claim 8, wherein: the 433MHz signal transmitting antenna ANT is a common lead or an on-board PCB antenna with 1/4 wavelength.
10. The 433MHz wireless signal transmitting circuit of claim 9, wherein: the model of MCU of 433MHz wireless remote controller is WT16PA6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321033364.0U CN219658223U (en) | 2023-05-04 | 2023-05-04 | 433MHz wireless signal transmitting circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321033364.0U CN219658223U (en) | 2023-05-04 | 2023-05-04 | 433MHz wireless signal transmitting circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219658223U true CN219658223U (en) | 2023-09-08 |
Family
ID=87876994
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321033364.0U Active CN219658223U (en) | 2023-05-04 | 2023-05-04 | 433MHz wireless signal transmitting circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219658223U (en) |
-
2023
- 2023-05-04 CN CN202321033364.0U patent/CN219658223U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102761639B (en) | A kind of mobile phone | |
| CN102830300A (en) | Testing system and method for realizing non-contact type intelligent card chip | |
| CN101770561A (en) | Switching method and control switching system thereof of radio frequency identification device (RFID) multi-protocol reader-writer | |
| CN219658223U (en) | 433MHz wireless signal transmitting circuit | |
| CN213661585U (en) | Micro-packaged electrically tunable filter | |
| CN203151484U (en) | Wireless transmitting and receiving circuit | |
| CN203192036U (en) | Radiofrequency transceiver module for electronic toll collection system | |
| CN201408835Y (en) | Mobile TV receiving antenna | |
| CN108988905A (en) | A kind of WiFi communication circuit and internet-of-things terminal | |
| CN209448741U (en) | A kind of wireless transmission circuit, radio transmitting device and unmanned plane | |
| CN2754194Y (en) | Current mutual inductor with passive wireless transmission function | |
| CN213754500U (en) | Remote high-power wireless communication circuit | |
| CN101582199B (en) | Wireless remote control television system | |
| CN201345104Y (en) | Control switching system for RFID multi-protocols reader | |
| CN216490475U (en) | High-efficient wireless terminal module of thing networking communication signal reinforcing | |
| CN212727000U (en) | High-fidelity anti-shielding wireless audio device | |
| CN203457149U (en) | Wireless communication circuit based on nRF2401 and nRF24E1 radio frequency chips | |
| CN219960580U (en) | Wireless multi-protocol SiP module capable of configuring inner and outer antennas | |
| CN201210674Y (en) | Ultra-short wave wideband antenna adaptor used in the sea | |
| CN216565090U (en) | LORA data transmission module | |
| CN213717967U (en) | Communication circuit for increasing wireless signal transmission distance | |
| CN111614365A (en) | Radio frequency transmitting module for 2.4GHz | |
| CN1020999C (en) | Digital carrier communicator for distribution network | |
| CN209375637U (en) | A kind of audio transmission device | |
| CN202257617U (en) | Balanced converter circuit of radio frequency identification (RFID) ultrahigh frequency reader-writer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |