CN204633738U

CN204633738U - A kind of frequency-selecting sound controling switch circuit

Info

Publication number: CN204633738U
Application number: CN201520266309.5U
Authority: CN
Inventors: 陈宝福
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-04-21
Filing date: 2015-04-21
Publication date: 2015-09-09
Anticipated expiration: 2025-04-21

Abstract

The utility model discloses a kind of frequency-selecting sound controling switch circuit, comprise amplifying circuit, memory circuit and executive circuit, described amplifying circuit comprises microphone A, triode V3 and triode V4, described memory circuit comprises chip IC 1, chip IC 2 and resistance R3, and described executive circuit comprises bidirectional thyristor Q1, resistance R2 and relay J.The utility model frequency-selecting sound controling switch circuit uses the sound of characteristic frequency as signal trigger source, control precisely, be not subject to the impact of common acoustic and barrier, the feature such as simultaneously have that circuit is simple, debugging is convenient, low in energy consumption, cost is low, volume is little and reflector is passive, and adopt the inductance coil of high q-factor, improve the antijamming capability of circuit.

Description

A kind of frequency-selecting sound controling switch circuit

Technical field

The utility model relates to a kind of switching circuit, specifically a kind of frequency-selecting sound controling switch circuit.

Background technology

Switch is the longest a kind of circuit element seen in daily life, traditional plug-in strip and push-button switch are eliminated gradually along with electronic industry development, some use radio frequency, infrared rays etc. progress into the life of people as the remote switch of remote control mode, they are not only easy to use, save manpower, and touch control manner is novel, therefore once releasing the control element being just used to various power consumption equipment, but traditional radio frequency, infra-red remote control mode is due to the feature of its own signal, easily produce mixing when multiple stage power consumption equipment uses simultaneously and mutually disturb, and most of remote switch complex structure, be difficult to debugging, great inconvenience is brought to user.

Utility model content

The purpose of this utility model is to provide the frequency-selecting sound controling switch circuit that a kind of structure is simple, debug convenience, strong interference immunity, to solve the problem proposed in above-mentioned background technology.

For achieving the above object, the utility model provides following technical scheme:

A kind of frequency-selecting sound controling switch circuit, comprise amplifying circuit, memory circuit and executive circuit, described amplifying circuit comprises microphone A, triode V3 and triode V4, described memory circuit comprises chip IC 1, chip IC 2 and resistance R3, and described executive circuit comprises bidirectional thyristor Q1, resistance R2 and relay J;

A main electrode contact resistance R1 of described bidirectional thyristor Q1, resistance R9, resistance R10, electric capacity C1, electric capacity C2, trimming capacitor C P1, inductance L 1, the anode of diode D1, the emitter of triode V2, power supply U1, the emitter of triode V4 and 14 pins of chip IC 2, the other end of resistance R1 connects relay J, resistance R5, resistance R12, the other end of electric capacity C1, electric capacity C3, electric capacity C4, the anode of diode D1, the emitter of triode V1, the emitter of triode V3, microphone A, 4 pins of chip IC 1,6 pins of chip IC 1, 7 pins of chip IC 2, 9 pins of chip IC 2 and 10 pins of chip IC 2 ground connection, the other end of relay J connects another main electrode of bidirectional thyristor Q1, the control pole contact resistance R2 of bidirectional thyristor Q1, the other end of resistance R2 connects a stiff end of potentiometer RP1 and the collector electrode of triode V1, another stiff end of potentiometer RP1 connects the negative electrode of diode D2 and the sliding end of potentiometer RP2, the other end ground connection of electric capacity C2, the base stage contact resistance R3 of triode V1, the other end of resistance R3 connects 1 pin of chip IC 1, 2 pins of chip IC 1 connect 5 pins of chip IC 1, the other end ground connection of electric capacity C2, 3 pins of chip IC 1 connect 13 pins of chip IC 2, 12 pin contact resistance R4 of chip IC 2, the other end of resistance R4 connects the other end of electric capacity C3 and 8 pins of chip IC 2, the other end of 11 pin contact resistance R5 of chip IC 2, the other end of electric capacity C4 and the collector electrode of triode V2, the other end contact resistance R7 of the base stage contact resistance R6 of triode V2, resistance R6, the other end of inductance L 1 and the other end of trimming capacitor C P1, the other end contact resistance R8 of resistance R7 and the collector electrode of triode V3, the other end of the base stage contact resistance R8 of triode V3 and the other end contact resistance R11 of electric capacity C5, electric capacity C5, the other end of resistance R12 and the collector electrode of triode V4, the other end of the base stage contact resistance R9 of triode V4, the other end of resistance R11 and electric capacity C6, the other end of other end contact resistance R10 of electric capacity C6 and the other end of microphone A.

As preferred version of the present utility model: the model of described chip IC 1 is CD4013, the model of chip IC 2 is SOT26.

As preferred version of the present utility model: described power supply U1 is 9V direct current.

As preferred version of the present utility model: the model of described inductance L 1 is 1206.

Compared with prior art, the beneficial effects of the utility model are: the utility model frequency-selecting sound controling switch circuit uses the sound of characteristic frequency as signal trigger source, control precisely, be not subject to the impact of common acoustic and barrier, the feature such as simultaneously have that circuit is simple, debugging is convenient, low in energy consumption, cost is low, volume is little and reflector is passive, and adopt the inductance coil of high q-factor, improve the antijamming capability of circuit.

Accompanying drawing explanation

Fig. 1 is the circuit diagram of frequency-selecting sound controling switch circuit.

Embodiment

Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.

Refer to Fig. 1, a kind of frequency-selecting sound controling switch circuit, comprise amplifying circuit, memory circuit and executive circuit, described amplifying circuit comprises microphone A, triode V3 and triode V4, described memory circuit comprises chip IC 1, chip IC 2 and resistance R3, and described executive circuit comprises bidirectional thyristor Q1, resistance R2 and relay J;

The model of chip IC 1 is CD4013, and the model of chip IC 2 is SOT26.

Power supply U1 is 9V direct current.

The model of inductance L 1 is 1206.

Operation principle of the present utility model is: reflector is the remote controllers with the leather bag whistle, by the sound signal that can send about 12kHz during hand pinching.Microphone A converts the signal of telecommunication to after receiving acoustical signal, is amplified by triode V3, V4, and via the frequency-selective circuit frequency-selecting that inductance L 1 and trimming capacitor C P1 form.The circuit resonance when there is the signal of 12kHz frequency in circuit, exports maximum, makes the triode V2 being in cut-off state at ordinary times saturated rapidly, at the high level signal of its collector resistance R5 two ends generation one close to supply voltage, and flip chip IC2.What select due to inductance L in resonant tank 1 is 1206 type high Q value inductances, and its passband is narrower.Because home environment noise is mostly at below 10kHz, therefore not by the interference of family's sound, after chip IC 1 is triggered by the high level of prime, circuit overturns, its 1 pin output level also changes, make transistor V1 state change thus trigger bidirectional thyristor Q1 conducting or shutoff, thus open or turn off relay J, complete the switch control rule to electrical equipment.By the audio frequency reception value of trimming capacitor C P1 and the conveniently adjusted circuit of potentiometer RP1, the reception value different according to different ambient As, adds the scope of application of circuit.

Claims

1. a frequency-selecting sound controling switch circuit, comprises amplifying circuit, memory circuit and executive circuit; It is characterized in that, described amplifying circuit comprises microphone A, triode V3 and triode V4, and described memory circuit comprises chip IC 1, chip IC 2 and resistance R3, and described executive circuit comprises bidirectional thyristor Q1, resistance R2 and relay J;

2. a kind of frequency-selecting sound controling switch circuit according to claim 1, is characterized in that, the model of described chip IC 1 is CD4013, and the model of chip IC 2 is SOT26.

3. a kind of frequency-selecting sound controling switch circuit according to claim 1, is characterized in that, described power supply U1 is 9V direct current.

4. a kind of frequency-selecting sound controling switch circuit according to claim 1, is characterized in that, the model of described inductance L 1 is 1206.