RU4852U1 - ELECTRONIC SOUND SIMULATOR - Google Patents

Abstract

1. An electronic sound simulator containing multivibrators on semiconductor elements connected to the emitter and the base of the transistor of the low-frequency amplifier included in the circuit of the acoustic head, and a key on the transistor, the base of which is connected to the collector of the transistor of the low-frequency amplifier, characterized in that the multivibrators are made of two pairwise connected elements 2I - NOT, in each pair of which the inputs and outputs are connected in series and in parallel, and a resistor and a capacitor are included in their parallel connections y, while the base of the transistor of the key is connected to the emitter of the transistor of the low-frequency amplifier, and between the collector of the transistor of the key and its base are connected in parallel a capacitor and a contact circuit. 2. The simulator according to claim 1, characterized in that between the collector of the transistor of the amplifier and the emitter of the transistor key is provided for connecting a tuning capacitor.

Description

M.Kif G- UN 5/12 ELTRONSHAY SOUND METER

The proposed utility model relates to elecr011: zykat nt.1 devices, in particular, to electronic / audio signals for children's games that depict, for example, birds.

Known electronic sound simulator (analogue) of bird singing, 5th relaxation sound frequency generator and ellitor repeater / I.

The disadvantage of the described device is the inability to irlite the singing of a rooster.

Known electronic sound monitor (anajog) of bird singing, contents of interconnected multivibrators on transistors, switches and a transistor amplifier, included in the circuit of the acoustic head 2 J

A drawback of the described device is its bulkiness, since the electronic filling together with the power supply unit, which is not able to fit directly in the housing of a small-sized toy, is mounted in a stand, which gives the toy a cumbersome stationary property, reducing the effect of emotional effects on the child.

An electronic sound simulator (prototype) is known, which is closest in technical essence to the offer, which contains .1 multivibrators on semiconductor elements connected to the emitter and the base of the transistor of the low-frequency amplifier included in the circuit of the acoustic head, and a key on the transistor, the base of which is connected to the collector of the transistor amplifier 3J.

The disadvantages of the prototype device are the same as that of the analog 2j, which are exacerbated by the introduction of a transistor key into it.

The purpose of the proposed utility model is to simplify the design, its miniaturization to ensure that the electronics of the shuste with the power supply can be placed directly in the salad of the toy, which is relatively small in size.

In the prototype device 3 /, containing multivibrators on the floor of the conductor elements, connected to the elitter and the base of the transistor of the low-frequency amplifier included in the circuit a: z-head, and the key on the transistor, the base of which is connected to the collector of the amplifier transistor, this circuit is reached the fact that multivibrators in it are a lycrohex with 2I-NOT logic elements, the corresponding inputs and outputs of each pair of which are connected by means of resistors and capacitors, while the base of the transistor of the key is connected ene to the emitter of the amplifier transistor, and a collector mezhdzg key transistor and its base podklyuchesh parallel capacitor and a manual button, kontaktnsh zaglykatel chain.

To quickly bring the electronic circuit of the proposed simulator to the specified electrical, frequency, and therefore sound parsets between the collector of the transistor of the amplifier and the transistor of the key transistor, a trimming capacitor is provided.

 2. ./// JT / The device contains two 1-Vogtivibrator made on microcircuits with logical elements 2I - NOT. In this case, the first multivibrator is assembled on the first pair of logic elements I and 2, and the second multivibrator is assembled on the second pair of similar elements 3 and 4,

The input 5,6,7,8 and the output 9 and 10 of the first pair of logic elements I and 2 are connected in parallel with the resistor II and the capacitor 12, and the inputs 13,14,15 and 16 and the output 17 and 18 of the second pair of logic elements 3 and 4 have parallel connections with resistor 19 and capacitor 20. In this case, inputs 5 and 16 of logic elements I and 4 are interconnected and connected through resistor 21 to the emitter of transistor 22, which is a low-frequency generator, and to the collector of this transistor 22 through resistor 23 and acoustic head 24. The base of the transistor 22 is connected through a resistor 25 to the input 14 and output 17 of the logic element 3.

The device has an electronic key assembled on the transistor 26, the emitter of which is connected to the head 24, and the base through the resistors 27 and 28 to the emitter of the transistor 22 and to the (+) power source. In this case, between the collector of transistor 26 and its base, a capacitor 29 and a push-button contact closure of circuit 30 are connected in parallel, a movable contact of which is connected to the collector of transistor 26 and (power source.

A trimming capacitor 31 can be connected between the code of the transistor 22 and the emitter of the transistor 26.

The proposed device operates as follows.

When the circuit breaker 30 is open, transistor 26 is closed. The device is not flooded and is inoperative. The current consumption in it corresponds to the MCA, which is much lower than the current of the self-regulator of the power supply and, in this regard, there is no other switch in this device.

.6YC - 3 The switch CES 30 serves as a shower for starting the generator, after which it automatically turns off. When the circuit is closed with the contact button 30 and the rod is supplied through the key transistor 26 to the Cements 1,2,3 and 4 of the nepsEit multivibrators as part of elements I and 2, it will enter the self-oscillating mode of operation, generating pulses with a frequency of I 3 Hz. These oscillations from the output 10 of the first multivibrator are fed to input 13 of the second multivibrator. The positive pulses generated by the 1D7 multinibrator determine the self-oscillatory mode of operation of the second multibranch, consisting of elements 3 and 4, which generates pulses of a higher frequency from 200 Hz to 2 KHz. These oscillations, amplified by the transistor 22, enter 1 bt into the acoustic head 24. Sounds with a tonality determined by the frequency of operation of the second multivibrator come from the speaker at this moment. When the capacitor 29 is discharged, the power to the b / ultrashtra is supplied stepwise, the voltage thereby gradually decreases as it is discharged, which contributes to the formation in the dynamic head of Gr of the most diverse groups of s: Eukov, attenuated for 5 10 sec.

These sounds can imitate penne birds, in particular, the cry of a rooster, the voices of various animals. The key on the transistor 26 supplies the supply voltage to the microcircuit from the nominal to the minivan / osh for the period of charging the capacitor 20, which is determined by the interval 5 t 10 sec.

In the proposed circuit, the key on the transistor 26 plays an active role and, in addition to the functions of the switch, creates the prerequisites for the formation of combined multi-tone sound vibrations.

After recharging the capacitors 12 and 20 and terminating the self-oscillations of the multivibrators, and completely discharging the capacitor 29, the transistor 26 is again locked, turning off the circuit. When you press the button (circuit closure) 30 again, the playback process

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The timbre color, strength and tonality of the moss can be varied within the corresponding limits by changing the values included in the circuit of elements, in particular, transistors and capacitors. Frequency alternation of s: szzgk can be changed by trimmer capacitor 31.

The proposed circuit of a sound simulator is simpler, cheaper and more economical in terms of power supply than a prototype device and, most importantly, allows you to create a miniature electron-sound filling for small-sized children's toys.

Author vAoW Belyanko A.A.

Claims (2)

1. An electronic sound simulator containing multivibrators based on semiconductor elements connected to an emitter and a transistor base of a low-frequency amplifier included in the acoustic head circuit, and a key on a transistor, the base of which is connected to a collector of a transistor of a low-frequency amplifier, characterized in that the multivibrators are made of two pairwise connected elements 2I - NOT, in each pair of which the inputs and outputs are connected in series and in parallel, and a resistor and a capacitor are included in their parallel connections y, while the base of the transistor of the key is connected to the emitter of the transistor of the low-frequency amplifier, and between the collector of the transistor of the key and its base are connected in parallel a capacitor and a contact circuit.  2. The simulator according to claim 1, characterized in that between the collector of the transistor of the amplifier and the emitter of the transistor key is provided for connecting trimmer capacitor.