CN102074084A

CN102074084A - Ding-dong doorbell manufactured by time-based integral circuit

Info

Publication number: CN102074084A
Application number: CN 201110009835
Authority: CN
Inventors: 朱虹
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-01-18
Filing date: 2011-01-18
Publication date: 2011-05-25

Abstract

The invention belongs to the field of the application of electronic technology, and relates to a ding-dong doorbell manufactured by a time-based integral circuit. The doorbell consists of a direct current power supply (DC), a direct current power supply filtering circuit, an astable multivibrator and an audio output circuit, and is characterized in that: an integral circuit in the astable multivibrator circuit selects a NE555 time-based circuit (IC1); and an oscillating frequency circuit and a delay circuit are also connected in astable multivibrator circuit. In the invention, the doorbell capable of making a sound like ding-dong is formed by the 555 time-based circuit with a few peripheral elements; the doorbell is graceful and vivid in tone quality, low in cost and power consumption, and is easy to assemble and regulate; and one 6V cascade battery arranged in the doorbell can be used for more than four months, and particularly, the 555 time-based circuit is an extraordinary electronic element which only costs less than one RMB now on the market, so the problem of the dependence of manufacturing a ding-dong doorbell on a special ding-dong voice integral circuit is solved.

Description

The time spent basis set becomes the ding-dong doorbell of circuit production

Technical field

The invention belongs to the application of electronic technology field, relate to the ding-dong doorbell that a kind of time spent basis set becomes circuit production.

Background technology

At present, " sting, the rub-a-dub " doorbell on the market mainly contains two big classes, a kind of mechanical percussive doorbell; Another kind is the electronic type doorbell." sting, rub-a-dub " speech IC by a special use in the circuit of electronic type doorbell is the core of circuit, its defective is that the frequency of " sting, rub-a-dub " is cured in the soft packaged integrated circuits, thereby can not regulated at will, and price also more expensive being difficult for be popularized.

Utilize one 555 time-base integrated circuit and a small amount of peripheral cell to form the doorbell of a kind of can sending " sting, rub-a-dub " sound, its tonequality grace is true to nature, and circuit is debug simply, cost is lower, and power consumption is lower, and one saves the 6V laminated battery can be with more than 4 months.Especially 555 time-base integrated circuits are extremely common electronic components, now the not enough monobasic of the price of market lastblock 555 time-base integrated circuits.

Through the comparison of multiple testing program, the present invention uses a small amount of common components and parts to realize that the time spent basis set becomes the ding-dong doorbell circuit of circuit production simple in structure, cheap, the requirement of dependable performance.

Below describing this time spent basis set in detail becomes the ding-dong doorbell of circuit production to make the correlation technique that relates to.

Summary of the invention

Goal of the invention and beneficial effect: the present invention utilizes one 555 time-base integrated circuit to be aided with the doorbell that a spot of peripheral cell is formed a kind of can sending " sting, rub-a-dub " sound, the tonequality grace of doorbell is true to nature, debug simple, cost is lower, and power consumption is lower, and a joint 6V laminated battery can be with more than 4 months.Especially 555 time-base integrated circuits are extremely common electronic components, and the present not enough monobasic of the price of market lastblock 555 time-base integrated circuits has solved the dependence of making " sting, rub-a-dub " glottis bell to special-purpose " sting, rub-a-dub " sound speech IC.

Technical characterictic: the time spent basis set becomes the ding-dong doorbell of circuit production, form by direct supply (DC), direct supply filtering circuit, astable multivibrator, audio output circuit, it is characterized in that: the integrated circuit in the astable multivibrator circuit is selected NE555 time base circuit (IC1) for use, also is connected to vibration frequency changer circuit and delay circuit in the astable multivibrator circuit.

Annexation in the composition of circuit and the circuit between the components and parts

1. astable multivibrator is made up of time base circuit (IC1), resistance R 4,

capacitor C

2,8 pin of 555 time base circuits (IC1) connect the positive pole (VCC) of direct supply, 2 pin of 555 time base circuits (IC1), 6 pin link to each other with an end of capacitor C 2, an end of

resistance R

4,7 pin of another termination 555 time base circuits (IC1) of

resistance R

4,1 pin of the other end of capacitor C 2 and 555 time base circuits (IC1) is with connection circuit ground (GND).

2. the end of 7 pin connecting resistance R3 of 555 time base circuits (IC1) in the vibration frequency changer circuit, the other end of resistance R 3 links to each other with the negative pole of P type diode D1, an end of resistance R 2, one end of the other end of resistance R 2 and pushbutton switch (AN) together connects the positive pole (VCC) of direct supply, and the other end of pushbutton switch (AN) links to each other with the positive pole of P type diode D2, the positive pole of P type diode D1.

3. delay circuit is made up of resistance R 1, electrochemical capacitor C1, and 4 pin of 555 time base circuits (IC1) are with the end of connecting resistance R1 and the positive pole of electrochemical capacitor C1, and the negative pole of the other end of resistance R 1 and electrochemical capacitor C1 is with connection circuit ground (GND).

4. audio output circuit is made up of electrochemical capacitor C3 and loudspeaker (Y), and 3 pin of 555 time base circuits (IC1) connect the positive pole of electrochemical capacitor C3, the connection circuit ground (GND), negative pole serial connection loudspeaker (Y) back of electrochemical capacitor C3.

The circuit working principle

The ding-dong doorbell constitutes astable multivibrator by 555 time base circuits (IC1) and peripheral cell.Press start button switch (AN), the about 700Hz of the oscillation frequency of oscillator, loudspeaker (Y) sends the sound of " stining "; Meanwhile, direct supply is given electrochemical capacitor C1 charging by diode D1.When unclamping start button switch (AN), when electrochemical capacitor C1 just discharged by resistance R 1, oscillator was kept vibration; Because the disconnection of start button switch (AN), because of resistance R 2 is serially connected in the circuit, the oscillation frequency of oscillator is changed, the oscillator oscillation frequency is approximately 500Hz, loudspeaker send " rub-a-dub " sound, up to electrochemical capacitor C1 power on press discharge into the vibration that can not keep 555 time base circuits (IC1) till.

Description of drawings

1. the accompanying drawing time spent basis set that is becomes the ding-dong doorbell circuit fundamental diagram of circuit production.

2. the IC1 in the accompanying drawing is 555 time base circuits, model: NE555.

3.NE555 time-base integrated circuit is 8 pin, the DIP encapsulation, and each pin function: 1 pin is ground connection (GND); 2 pin are trigger end; 3 pin are output terminal; 4 pin are reset terminal; 5 pin are control voltage; 6 pin are thresholding (threshold value); 7 pin are discharge end; 8 pin connect positive source (VCC).

Embodiment

Time spent basis set shown in the drawings to specifications becomes the ding-dong doorbell fundamental diagram of circuit production and the components and parts technical requirement and the adjustment method of description of drawings and the following stated to implement, and can realize the present invention.

The selection of components and parts and technical parameter thereof

1.D1, D2 selects the diode of P-type material for use, model is: 2AP10.

2. all to select power for use be 1/8W metalfilmresistor or carbon resister to resistance, and the resistance of resistance R 1, R2 is: 47K Ω, 30K Ω; The resistance of resistance R 3, R4 is 22K Ω.

3.C1, C3, C4 be electrochemical capacitor, capacity is respectively 47 μ F/16V, 100 μ F/16V, 470 μ F/16V; C2 is a ceramic disc capacitor, and capacity is 0.047 μ F.

4.Y for middle resistance loudspeaker, impedance are 16 Ω, power requirement 〉=0.5W.

5.AN selecting the contact for use is pushbutton switch open in usual.

Circuit debugging

The time spent basis set becomes the sound of " stining " of the ding-dong doorbell of circuit production, and its oscillation frequency can be adjusted by the resistance that changes resistance R 3; " rub-a-dub " sound, the resistance that its oscillation frequency can appropriate change resistance R 2 is adjusted; Doorbell " rub-a-dub " length of the lingering sound of sound can adjust by the amount of capacity that changes electrochemical capacitor C1.

Claims

1. the time spent basis set becomes the ding-dong doorbell of circuit production, form by direct supply (DC), direct supply filtering circuit, astable multivibrator, audio output circuit, it is characterized in that: the integrated circuit in the astable multivibrator circuit is selected NE555 time base circuit (IC1) for use, also is connected to vibration frequency changer circuit and delay circuit in the astable multivibrator circuit.

2. time spent basis set according to claim 1 becomes the ding-dong doorbell of circuit production, astable multivibrator is made up of 555 time base circuits (IC1), resistance R 4, capacitor C 2, it is characterized in that: 8 pin of 555 time base circuits (IC1) connect the positive pole (VCC) of direct supply, 2 pin of 555 time base circuits (IC1), 6 pin link to each other with an end of capacitor C 2, an end of resistance R 4,7 pin of another termination 555 time base circuits (IC1) of resistance R 4,1 pin of the other end of capacitor C 2 and 555 time base circuits (IC1) is with connection circuit ground (GND).

3. time spent basis set according to claim 1 becomes the ding-dong doorbell of circuit production, it is characterized in that: the end of 7 pin connecting resistance R3 of 555 time base circuits (IC1) in the vibration frequency changer circuit, the other end of resistance R 3 links to each other with the negative pole of P type diode D1, an end of resistance R 2, one end of the other end of resistance R 2 and pushbutton switch (AN) together connects the positive pole (VCC) of direct supply, and the other end of pushbutton switch (AN) links to each other with the positive pole of P type diode D1, the positive pole of P type diode D2.

4. time spent basis set according to claim 1 becomes the ding-dong doorbell of circuit production, delay circuit is made up of resistance R 1, electrochemical capacitor C1, it is characterized in that: 4 pin of 555 time base circuits (IC1) are with the end of connecting resistance R1 and the positive pole of electrochemical capacitor C1, and the negative pole of the other end of resistance R 1 and electrochemical capacitor C1 is with connection circuit ground (GND).

5. time spent basis set according to claim 1 becomes the ding-dong doorbell of circuit production, audio output circuit is made up of electrochemical capacitor C3 and loudspeaker (Y), it is characterized in that: 3 pin of 555 time base circuits (IC1) connect the positive pole of electrochemical capacitor C3, the connection circuit ground (GND), negative pole serial connection loudspeaker (Y) back of electrochemical capacitor C3.