CN210075206U - Novel low-cost full-integrated wireless transmitting circuit - Google Patents
Novel low-cost full-integrated wireless transmitting circuit Download PDFInfo
- Publication number
- CN210075206U CN210075206U CN201921418790.XU CN201921418790U CN210075206U CN 210075206 U CN210075206 U CN 210075206U CN 201921418790 U CN201921418790 U CN 201921418790U CN 210075206 U CN210075206 U CN 210075206U
- Authority
- CN
- China
- Prior art keywords
- circuit
- wireless transmitting
- pin
- capacitor
- chip
- 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
- Transmitters (AREA)
Abstract
Because used discrete components such as external sound table and NPN high frequency tube, the cost is higher in order to solve traditional wireless transmitting module, the great problem of consumption, the utility model provides a novel low-cost full integrated wireless transmitting circuit, it includes: power, singlechip, wireless transmission chip, matching network and antenna ANT, wireless transmission chip and singlechip power supply are given to the power, and the signal output part of wireless transmission chip is connected with matching network's one end, and antenna ANT is connected to matching network's other one end, and the signal input part of wireless transmission chip is connected with the output of singlechip, its characterized in that: the wireless transmitting chip is internally integrated with an oscillation control circuit, an oscillation circuit and a signal amplification circuit, wherein the input end of the oscillation control circuit is connected with the output end of the single chip microcomputer, the output end of the oscillation control circuit is connected with the input end of the oscillation circuit, the output end of the oscillation circuit is connected with the input end of the signal amplification circuit, and the output end of the signal amplification circuit is connected with one end of the matching network.
Description
Technical Field
The utility model relates to wireless transceiver chip technical field, it is comparatively concrete, involve a novel low-cost full integrated wireless transmitting circuit.
Background
At present, the existing wireless transmitting module in the market is basically built by utilizing discrete elements such as an external sound meter and an NPN high-frequency tube, and a complete wireless transmitting circuit comprises a power supply, a single chip microcomputer, a wireless transmitting module, a matching network and an antenna, wherein the power supply supplies power to the single chip microcomputer and the wireless transmitting module, the single chip microcomputer sends a digital signal to the wireless transmitting module for modulation, the wireless transmitting module sends the high-frequency signal obtained by OOK/ASK modulation of the digital signal to the antenna through the matching network for radiation, and the traditional wireless transmitting module is high in cost and large in power consumption due to the fact that the discrete elements such as the external sound meter and the NPN high-frequency tube are used.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems, the utility model provides a novel low-cost fully-integrated wireless transmitting circuit, which comprises a power supply, a singlechip, a wireless transmitting chip, a matching network and an antenna, wherein the power supply supplies power to the wireless transmitting chip and the singlechip, and the singlechip provides a digital signal to be modulated for the wireless transmitting chip; the wireless transmitting chip amplifies and modulates the signal received from the singlechip to obtain a high-frequency signal, and then the high-frequency signal is output to the antenna through the matching network, and the antenna radiates the high-frequency signal output by the wireless transmitting chip. In the process, the difference with the traditional wireless transmitting circuit is that the oscillating circuit is integrated inside the wireless transmitting chip, and the oscillating circuit inside the wireless transmitting chip provides carrier frequency for the wireless transmitting chip, so that the cost of discrete elements such as an external sound meter and an NPN high-frequency tube can be reduced, the circuit outside the wireless transmitting chip is simplified, and the power consumption of the whole wireless transmitting circuit is lower.
A novel low-cost fully integrated wireless transmit circuit, comprising: power, singlechip, wireless transmission chip, matching network and antenna ANT, wireless transmission chip and singlechip power supply are given to the power, and the signal output part of wireless transmission chip is connected with matching network's one end, and antenna ANT is connected to matching network's other one end, and the signal input part of wireless transmission chip is connected with the output of singlechip, its characterized in that: the wireless transmitting chip is internally integrated with an oscillation control circuit, an oscillation circuit and a signal amplification circuit, wherein the input end of the oscillation control circuit is connected with the output end of the single chip microcomputer, the output end of the oscillation control circuit is connected with the input end of the oscillation circuit, the output end of the oscillation circuit is connected with the input end of the signal amplification circuit, and the output end of the signal amplification circuit is connected with one end of the matching network. When a digital signal of the output end of the single chip microcomputer is input into the wireless transmitting chip, the oscillation control circuit controls the oscillation circuit to start oscillation, so that the oscillation circuit is in an intermittent working state, the oscillation circuit modulates the digital signal onto a corresponding carrier, the digital signal is amplified by the amplifying circuit and then output from the signal output end of the wireless transmitting chip, and then the digital signal is subjected to power matching by the matching network and then is transmitted out through the antenna ANT.
Furthermore, an oscillation circuit inside the wireless transmitting chip adopts an OOK/ASK modulation mode, which is also called an on-off keying modulation mode, that is, when a digital signal at the output end of the single chip microcomputer is input into the wireless transmitting chip, the oscillation circuit inside the wireless transmitting chip works in an intermittent state due to "0" and "1" of the digital signal, and the wireless transmitting chip modulates the digital signal onto a corresponding carrier wave in this way.
Furthermore, the working frequency bands of the wireless transmitting chip comprise 433MHz and 315MHz, because the two frequency bands are relatively universal free frequency bands and are suitable for commercial use. After the oscillation control circuit and the oscillation circuit in the wireless transmitting chip are determined, the working frequency band of the wireless transmitting chip is determined.
Furthermore, the working frequency band of the wireless transmitting chip preferably adopts 433MHz, and under the frequency band of 433MHz, signals are stable and are not easy to be interfered.
Further, when the working frequency band of the wireless transmitting chip is 433MHz, the model of the wireless transmitting chip is RC117-SOP23-6, the RC117-SOP23-6 of the wireless transmitting chip comprises six pins which are respectively a first pin, a second pin, a third pin, a fourth pin, a fifth pin and a sixth pin, wherein the second pin is connected to one end of the matching network, the fourth pin is connected to the power supply, the fifth pin is connected with the single chip microcomputer, and the third pin and the sixth pin are grounded.
Furthermore, the first pin of the wireless transmitting chip RC117-SOP23-6 is connected with the light emitting diode LED through the first resistor R1 and then grounded, so that when the wireless transmitting chip RC117-SOP23-6 sends a signal, the light emitting diode LED is lightened, and a prompt can be given to a user.
Further, the matching network comprises a first capacitor C1, a second capacitor C2, a third capacitor C3 and a second inductor L2, one end of the first capacitor C1 is connected to the second pin of the wireless transmitting chip RC117-SOP23-6, the other end of the first capacitor C1 is connected to one end of the second inductor L2, the other end of the second inductor L2 is connected to one ends of the antenna ANT and the second capacitor C2, the other end of the second capacitor C2 is grounded, one end of the third capacitor C3 is connected to the antenna ANT, and the other end of the third capacitor C3 is connected to the ground after the other end of the second capacitor C2 is connected to the ground. The matching network can be matched with an oscillating circuit in a wireless transmitting chip RC117-SOP23-6, and selection of 433MHz or 315MHz working frequency band is achieved.
Furthermore, a first inductor L1 is connected between one end of the first capacitor C1 and the second pin of the wireless transmitting chip RC117-SOP23-6 and then grounded, and the first inductor L1 is used for passing direct current and isolating alternating current, so that interference of alternating current signals on the stability of a power supply is prevented, and noise is generated.
Further, the operating parameters of the electric elements of the novel low-cost fully integrated wireless transmitting circuit are as follows: the first inductor L1 is 100nH, the second inductor L2 is 22nH, the first capacitor C1 is 100pF, the second capacitor C2 is 12pF, and the third capacitor C3 is 3 pF.
The utility model discloses a novel low-cost full integrated wireless transmitting circuit's theory of operation as follows: when a digital signal at the output end of the single chip microcomputer is input to the fifth pin of the wireless transmitting chip RC117-SOP23-6, an oscillation control circuit inside the wireless transmitting chip RC117-SOP23-6 controls the oscillation of an oscillation circuit, so that the oscillation circuit is in an intermittent working state, the oscillation circuit modulates the digital signal onto a corresponding carrier, the digital signal is amplified by an amplification circuit and then output from the second pin of the wireless transmitting chip RC117-SOP23-6, and then the digital signal is subjected to power matching by a matching network and then is transmitted by an antenna ANT.
Drawings
Fig. 1 is a schematic structural diagram of a novel low-cost fully integrated wireless transmitting circuit.
Fig. 2 is a schematic structural diagram of an internal circuit of the wireless transmitting chip.
The following detailed description of the invention will be further described in conjunction with the above-identified drawings.
Detailed Description
Specific embodiment example 1:
fig. 1 is a schematic structural diagram of a novel low-cost fully integrated wireless transmitting circuit. Fig. 2 is a schematic diagram of the internal circuit of the wireless transmitting chip. A novel low-cost fully integrated wireless transmit circuit, comprising: power, singlechip, wireless transmission chip, matching network and antenna ANT, wireless transmission chip and singlechip power supply are given to the power, and the signal output part of wireless transmission chip is connected with matching network's one end, and antenna ANT is connected to matching network's other one end, and the signal input part of wireless transmission chip is connected with the output of singlechip, its characterized in that: the wireless transmitting chip is internally integrated with an oscillation control circuit, an oscillation circuit and a signal amplification circuit, wherein the input end of the oscillation control circuit is connected with the output end of the single chip microcomputer, the output end of the oscillation control circuit is connected with the input end of the oscillation circuit, the output end of the oscillation circuit is connected with the input end of the signal amplification circuit, and the output end of the signal amplification circuit is connected with one end of the matching network. When a digital signal of the output end of the single chip microcomputer is input into the wireless transmitting chip, the oscillation control circuit controls the oscillation circuit to start oscillation, so that the oscillation circuit is in an intermittent working state, the oscillation circuit modulates the digital signal onto a corresponding carrier, the digital signal is amplified by the amplifying circuit and then output from the signal output end of the wireless transmitting chip, and then the digital signal is subjected to power matching by the matching network and then is transmitted out through the antenna ANT.
The oscillation circuit in the wireless transmitting chip adopts an OOK/ASK modulation mode, the OOK/ASK modulation mode is also called an on-off keying modulation mode, namely when a digital signal at the output end of the single chip microcomputer is input into the wireless transmitting chip, the oscillation circuit in the wireless transmitting chip works in an intermittent state due to '0' and '1' of the digital signal, and the wireless transmitting chip modulates the digital signal to a corresponding carrier wave in the mode.
The working frequency band of the wireless transmitting chip is 433MHz, the model of the wireless transmitting chip is RC117-SOP23-6, the RC117-SOP23-6 of the wireless transmitting chip comprises six pins which are respectively a first pin, a second pin, a third pin, a fourth pin, a fifth pin and a sixth pin, wherein the second pin is connected to one end of a matching network, the fourth pin is connected to a power supply, the fifth pin is connected with a single chip microcomputer, and the third pin and the sixth pin are grounded.
The first pin of the wireless transmitting chip RC117-SOP23-6 is connected with the light emitting diode LED through the first resistor R1 and then grounded, so that when the wireless transmitting chip RC117-SOP23-6 sends a signal, the light emitting diode LED is lightened, and a prompt can be given to a user.
The matching network comprises a first capacitor C1, a second capacitor C2, a third capacitor C3 and a second inductor L2, one end of the first capacitor C1 is connected to the second pin of the wireless transmitting chip RC117-SOP23-6, the other end of the first capacitor C1 is connected with one end of the second inductor L2, the other end of the second inductor L2 is connected with one ends of an antenna ANT and a second capacitor C2 respectively, the other end of the second capacitor C2 is grounded, one end of the third capacitor C3 is connected with the antenna ANT, and the other end of the third capacitor C3 is connected with the other end of the second capacitor C2 and then grounded. The matching network can be matched with an oscillating circuit in a wireless transmitting chip RC117-SOP23-6, and the 433MHz working frequency band is selected.
The first inductor L1 is connected between one end of the first capacitor C1 and the second pin of the wireless transmitting chip RC117-SOP23-6 and then grounded, and the first inductor L1 is used for conducting direct current and isolating alternating current, so that interference of alternating current signals on the stability of a power supply is prevented, and noise is generated.
The operating parameters of the electric elements of the novel low-cost fully integrated wireless transmitting circuit are as follows: the first inductor L1 is 100nH, the second inductor L2 is 22nH, the first capacitor C1 is 100pF, the second capacitor C2 is 12pF, and the third capacitor C3 is 3 pF.
The working principle of the novel low-cost fully-integrated wireless transmitting circuit is as follows: when a digital signal at the output end of the single chip microcomputer is input to the fifth pin of the wireless transmitting chip RC117-SOP23-6, an oscillation control circuit inside the wireless transmitting chip RC117-SOP23-6 controls the oscillation of an oscillation circuit, so that the oscillation circuit is in an intermittent working state, the oscillation circuit modulates the digital signal onto a corresponding carrier, the digital signal is amplified by an amplification circuit and then output from the second pin of the wireless transmitting chip RC117-SOP23-6, and then the digital signal is subjected to power matching by a matching network and then is transmitted by an antenna ANT.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (8)
1. A novel low-cost fully integrated wireless transmit circuit, comprising: power, singlechip, wireless transmission chip, matching network and antenna ANT, wireless transmission chip and singlechip power supply are given to the power, and the signal output part of wireless transmission chip is connected with matching network's one end, and antenna ANT is connected to matching network's other one end, and the signal input part of wireless transmission chip is connected with the output of singlechip, its characterized in that: the wireless transmitting chip is internally integrated with an oscillation control circuit, an oscillation circuit and a signal amplification circuit, wherein the input end of the oscillation control circuit is connected with the output end of the single chip microcomputer, the output end of the oscillation control circuit is connected with the input end of the oscillation circuit, the output end of the oscillation circuit is connected with the input end of the signal amplification circuit, and the output end of the signal amplification circuit is connected with one end of the matching network; when a digital signal of the output end of the single chip microcomputer is input into the wireless transmitting chip, the oscillation control circuit controls the oscillation circuit to start oscillation, so that the oscillation circuit is in an intermittent working state, the oscillation circuit modulates the digital signal onto a corresponding carrier, the digital signal is amplified by the amplifying circuit and then output from the signal output end of the wireless transmitting chip, and then the digital signal is subjected to power matching by the matching network and then is transmitted out through the antenna ANT.
2. The novel low-cost fully integrated wireless transmit circuit of claim 1, wherein: an oscillation circuit in the wireless transmitting chip adopts an OOK/ASK modulation mode.
3. The novel low-cost fully integrated wireless transmit circuit of claim 1, wherein: the working frequency range of the wireless transmitting chip comprises 433MHz and 315 MHz.
4. The novel low-cost fully integrated wireless transmit circuit of claim 1, wherein: when the working frequency band of the wireless transmitting chip is 433MHz, the model of the wireless transmitting chip is RC117-SOP23-6, the RC117-SOP23-6 of the wireless transmitting chip comprises six pins which are respectively a first pin, a second pin, a third pin, a fourth pin, a fifth pin and a sixth pin, wherein the second pin is connected to one end of a matching network, the fourth pin is connected to a power supply, the fifth pin is connected with a single chip microcomputer, and the third pin and the sixth pin are grounded.
5. The novel low-cost fully integrated wireless transmit circuit of claim 4, wherein: the first pin of the wireless transmitting chip RC117-SOP23-6 is connected with the light emitting diode LED through the first resistor R1 and then grounded.
6. The novel low-cost fully integrated wireless transmit circuit of claim 4, wherein: the matching network comprises a first capacitor C1, a second capacitor C2, a third capacitor C3 and a second inductor L2, one end of the first capacitor C1 is connected to the second pin of the wireless transmitting chip RC117-SOP23-6, the other end of the first capacitor C1 is connected with one end of the second inductor L2, the other end of the second inductor L2 is connected with one ends of an antenna ANT and a second capacitor C2 respectively, the other end of the second capacitor C2 is grounded, one end of the third capacitor C3 is connected with the antenna ANT, and the other end of the third capacitor C3 is connected with the other end of the second capacitor C2 and then grounded.
7. The novel low-cost fully integrated wireless transmit circuit of claim 6, wherein: the first inductor L1 is connected between one end of the first capacitor C1 and the second pin of the wireless transmitting chip RC117-SOP23-6 and then grounded.
8. A novel low-cost fully integrated wireless transmitter circuit as claimed in any one of claims 4 to 7, wherein: the first inductor L1 is 100nH, the second inductor L2 is 22nH, the first capacitor C1 is 100pF, the second capacitor C2 is 12pF, and the third capacitor C3 is 3 pF.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921418790.XU CN210075206U (en) | 2019-08-29 | 2019-08-29 | Novel low-cost full-integrated wireless transmitting circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921418790.XU CN210075206U (en) | 2019-08-29 | 2019-08-29 | Novel low-cost full-integrated wireless transmitting circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210075206U true CN210075206U (en) | 2020-02-14 |
Family
ID=69431385
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921418790.XU Active CN210075206U (en) | 2019-08-29 | 2019-08-29 | Novel low-cost full-integrated wireless transmitting circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210075206U (en) |
-
2019
- 2019-08-29 CN CN201921418790.XU patent/CN210075206U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| MX2007016362A (en) | Power transmission system, apparatus and method with communication. | |
| CN109375176A (en) | A kind of power amplifier in transmitter module | |
| US20130130636A1 (en) | Electronic device comprising an operating mode switching unit | |
| CN210075206U (en) | Novel low-cost full-integrated wireless transmitting circuit | |
| CN203151484U (en) | Wireless transmitting and receiving circuit | |
| CN102903231A (en) | Wireless infrared remote control signal transponder | |
| CN204632890U (en) | Cavity body filter, connector, duplexer, radio frequency remote equipment | |
| CN109067420A (en) | Wireless audio frequency transmission function USB interface mould group | |
| CN210640875U (en) | Novel SUB-1G wireless transmitting system structure | |
| CN105162540B (en) | Wireless digital broadcasting station | |
| CN210199979U (en) | Novel self-copying remote controller circuit | |
| CN211486243U (en) | Wake-up receiver for cardiac pacemaker | |
| CN210468906U (en) | Double-frequency wireless transmission electric energy and signal system | |
| EP3393008A3 (en) | Wireless charging delivery module for adapting wireless charging type between transmitter and receiver | |
| CN201821344U (en) | 433M50mW wireless transceiver | |
| CN210297704U (en) | High-speed visible light communication optical transmitter based on multi-quantum well blue light micro LED | |
| CN204206115U (en) | A kind of amplifying circuit for wireless short wave transmitting antenna | |
| CN207283542U (en) | A kind of LoRa communication modules | |
| CN104507007A (en) | True diversity wireless microphone system | |
| CN106067802B (en) | Microwave isolation solid state relay and operation method thereof | |
| CN105243828A (en) | Remote control device based on ultrasonic communication and remote control method thereof | |
| CN204425628U (en) | FM transmitter | |
| CN204046598U (en) | A kind of enhanced wireless transport module | |
| CN221283188U (en) | Bluetooth module circuit | |
| CN221467710U (en) | Wireless transceiving circuit and wireless transceiving equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |