CN211239842U

CN211239842U - Signal processing circuit

Info

Publication number: CN211239842U
Application number: CN201922349564.7U
Authority: CN
Inventors: 苏宜香
Original assignee: Shanghai Xulan Electronic Technology Co ltd
Current assignee: Shanghai Xulan Electronic Technology Co ltd
Priority date: 2019-12-24
Filing date: 2019-12-24
Publication date: 2020-08-11
Anticipated expiration: 2029-12-24

Abstract

The utility model discloses a signal processing circuit, including ground capacitance C1, resistance R1, inductance L1, antenna Y, triode VT1 and triode VT2, ground capacitance C1 connects the power VCC respectively, resistance R2, inductance L1, electric capacity C4, resistance R6, ground capacitance C10, inductance L3, electric capacity C11 and ground capacitance C12, electric capacity C2 is connected respectively to the resistance R2 other end, resistance R3 and triode VT1 base, electric capacity C3 and resistance R1 are connected respectively to the electric capacity C2 other end, input signal Vi is connected to the resistance R1 other end. The utility model discloses signal processing circuit possesses the multiunit antenna, can simultaneous working, can use its to the household electrical appliances field, only needs to receive a control signal, can send two kinds of radio signals to control other household electrical appliances, for prior art's the linkage of passing through bluetooth and WIFI, there is very big advantage in the aspect of the cost control, market competition is strong.

Description

Signal processing circuit

Technical Field

The utility model relates to an analog circuit specifically is a signal processing circuit.

Background

The remote control technology is also called as remote control technology, is used for realizing remote control of a controlled object, and is widely applied to the fields of industrial control, aerospace and household appliances. Infrared remote control is a wireless and non-contact control technology, has the obvious advantages of strong anti-interference capability, reliable information transmission, low power consumption, low cost, easy realization and the like, and is widely adopted by a plurality of electronic devices, particularly household appliances. Many products in the market at present adopt remote control, but the products with remote control in the market at present are more expensive than similar products without remote control, and the reasons are that a single chip microcomputer is used as a control element, related programs need to be written, the development cost is high, and the market competition is strong.

In addition, the existing household appliances receive signals through an antenna, but the intelligent household times are entered, a plurality of household appliances need to be linked to meet the living needs of people, the existing linkage is mostly realized through Bluetooth and WIFI, and the cost is high.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a signal 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 processing circuit comprises a grounding capacitor C1, a resistor R1, an inductor L1, an antenna Y, a triode VT1 and a triode VT2, wherein the grounding capacitor C1 is respectively connected with a power supply VCC, a resistor R2, an inductor L1, a capacitor C4, a resistor R6, a grounding capacitor C10, an inductor L3, a capacitor C11 and a grounding capacitor C12, the other end of the resistor R2 is respectively connected with a capacitor C2, a resistor R3 and a base of the triode VT1, the other end of the capacitor C2 is respectively connected with a capacitor C3 and a resistor R3, the other end of the resistor R3 is connected with an input signal Vi, a collector of the triode VT3 is respectively connected with the other end of the inductor L3, the other end of the capacitor C3 and a capacitor C3, the other end of the capacitor C3 is respectively connected with an emitter of the triode VT3, a resistor R3, a capacitor C3 and a base of the triode VT3, the other end of the VT3 is respectively connected with a switch and a switch S3, the other end of the capacitor C14 is respectively connected with a resistor R5 and a base of a triode VT3, a collector of the triode VT3 is respectively connected with the other end of an inductor L3, the other end of a capacitor C11 and a capacitor C13, the other end of the capacitor C13 is connected with an antenna Y, an emitter of the triode VT3 is respectively connected with the other end of a resistor R5, the other ends of a resistor R9, a resistor R7, the other end of a capacitor C7, the other end of a resistor R4, the other end of a resistor R3 and the other end of a capacitor C3 and is grounded, the other end of the resistor R9 is respectively connected with an emitter of the triode; the capacitor C14, the resistor R5, the triode VT3, the inductor L3, the capacitor C10, the capacitor C11, the capacitor C12, the capacitor C13 and the antenna Y form a wireless transmitting module; the other end of the capacitor C8 is connected with a wireless transmitting module which is structured as above.

As a further aspect of the present invention: the power supply VCC voltage is 12V.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses signal processing circuit possesses the multiunit antenna, can simultaneous working, can use its to the household electrical appliances field, only needs to receive a control signal, can send two kinds of radio signals to control other household electrical appliances, for prior art's the linkage of passing through bluetooth and WIFI, there is very big advantage in the aspect of the cost control, market competition is strong.

Drawings

Fig. 1 is a circuit diagram of a signal processing circuit.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1, in an embodiment of the present invention, a signal processing circuit includes a ground capacitor C1, a resistor R1, an inductor L1, an antenna Y, a transistor VT1, and a transistor VT2, where the ground capacitor C1 is connected to a power VCC, a resistor R2, an inductor L1, a capacitor C4, a resistor R6, a ground capacitor C10, an inductor L3, a capacitor C11, and a ground capacitor C12, the other end of the resistor R2 is connected to a capacitor C2, a resistor R3, and a base of a transistor VT1, the other end of the capacitor C2 is connected to a capacitor C3 and a resistor R1, the other end of the resistor R1 is connected to an input signal Vi, a collector of the capacitor R1 is connected to the other end of the inductor L1, the other end of the capacitor C1, and a collector of the capacitor C1, the other end of the capacitor C1 is connected to an emitter of the transistor VT1, a resistor R1, and a collector of the transistor VT1 are connected to the other end of the transistor VT1, the other end of the switch S1 is connected with a capacitor C14, the other end of the capacitor C14 is connected with a resistor R5 and a base of a triode VT3 respectively, a collector of the triode VT3 is connected with the other end of an inductor L3, the other end of a capacitor C11 and a capacitor C13 respectively, the other end of the capacitor C13 is connected with an antenna Y, an emitter of the triode VT3 is connected with the other end of a resistor R5, the other end of a resistor R9, the other end of a resistor R7, the other end of a capacitor C7, the other end of a resistor R4, the other end of a resistor R3 and the other end of the capacitor C3 respectively and is grounded, the other end of the resistor R; the capacitor C14, the resistor R5, the triode VT3, the inductor L3, the capacitor C10, the capacitor C11, the capacitor C12, the capacitor C13 and the antenna Y form a wireless transmitting module; the other end of the capacitor C8 is connected with a wireless transmitting module with the structure; the power supply VCC voltage is 12V.

The utility model discloses a theory of operation is: referring to fig. 1, the circuit comprises a high frequency oscillator, a dual-channel signal generating circuit, and a wireless transmitting module, wherein a transistor VT1 and its peripheral components form the high frequency oscillator for generating a carrier frequency signal, the output signal is output by an emitter of VT1 and coupled to a base of the transistor VT2 through a capacitor C8, the transistor VT2 is connected to a common emitter amplification form, and the phase of the output signal of the common emitter amplification circuit rotates 180 ° and the output signal of the emitter of the transistor appears directly, so that two signals whose phases deviate by 180 ° are taken out from the emitter and the collector through a capacitor C8 and a capacitor C14 and sent to the wireless transmitting module consisting of the rear-end transistor VT3 for power boosting and sending through an antenna Y, and in sum, the signal transmission of two frequencies can be controlled by controlling switches S1 and S2; and because the utility model discloses a two way transmitting circuit structures are identical, so can carry out the modularized design, can expand the scheme of above-mentioned embodiment as required into the multichannel.

To sum up, the utility model discloses signal processing circuit possesses the multiunit antenna, can simultaneous working, can use its to the household electrical appliances field, only needs to receive a control signal, can send two kinds of radio signals to control other household electrical appliances, for prior art's the linkage of bluetooth and WIFI, there is very big advantage in the aspect of the cost control, market competition is strong.

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

1. A signal processing circuit comprises a grounding capacitor C1, a resistor R1, an inductor L1, an antenna Y, a triode VT1 and a triode VT2, and is characterized in that the grounding capacitor C1 is respectively connected with a power supply VCC, a resistor R2, an inductor L1, a capacitor C4, a resistor R6, a grounding capacitor C10, an inductor L3, a capacitor C11 and a grounding capacitor C12, the other end of the resistor R2 is respectively connected with a capacitor C2, a resistor R3 and a base of a triode VT1, the other end of the capacitor C2 is respectively connected with a capacitor C3 and a resistor R1, the other end of the resistor R1 is connected with an input signal Vi, a collector of the triode VT1 is respectively connected with the other end of the inductor L1, the other end of the capacitor C1 and a base of the triode VT1, the other end of the capacitor C1 is respectively connected with an emitter of the triode VT1, the resistor R1, the capacitor C1 and the base of the triode VT1 are respectively connected with a collector of the triode VT1, the other end of the switch S1 is connected with a capacitor C14, the other end of the capacitor C14 is connected with a resistor R5 and the base of a triode VT3 respectively, the collector of the triode VT3 is connected with the other end of an inductor L3, the other end of the capacitor C11 and the base of a capacitor C13 respectively, the other end of a capacitor C13 is connected with an antenna Y, the emitter of the triode VT3 is connected with the other end of a resistor R5, the other end of a resistor R9, the other end of a resistor R7, the other end of a capacitor C7, the other end of a resistor R4, the other end of a resistor R3 and the.

2. The signal processing circuit of claim 1, wherein the capacitor C14, the resistor R5, the transistor VT3, the inductor L3, the capacitor C10, the capacitor C11, the capacitor C12, the capacitor C13, and the antenna Y form a wireless transmitting module.

3. The signal processing circuit as claimed in claim 2, wherein the emitter of the transistor VT2 is further connected to a switch S2, the other terminal of the switch S2 is connected to a capacitor C8, and the other terminal of the capacitor C8 is connected to one of the wireless transmitting modules.

4. The signal processing circuit of claim 3, wherein the power source VCC is a DC power source and has a rated voltage of 12V.