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Miniature hearing aid

A hearing aid and miniature technology, applied in hearing aids, electrical components and other directions, can solve the problems of unfavorable popularization and promotion, large size of hearing aids, complicated circuit structure, etc., and achieve the effects of stable operation, small size and simple circuit structure.

Inactive Publication Date: 2015-05-27
爱玛克医疗技术(成都)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, many hearing aids are often bulky, power-consuming, noisy, low-sensitivity, complex circuit structure, many components, and high cost, which is not conducive to popularization and promotion

Method used

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  • Miniature hearing aid

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Embodiment Construction

[0009] The present invention will be further described below in conjunction with accompanying drawing:

[0010] Such as figure 1 Shown: the present invention includes battery E, switch S, single-pole three-throw switch SA, inductance coil L, microphone BM, earphone socket XS, first resistor R1 to ninth resistor R9, first capacitor C1 to tenth capacitor C10, electric potential RP and the audio amplifier IC of model SL8712, the positive pole of the battery E is connected to the first terminal of the ninth resistor R9, the second terminal of the ninth resistor R9 is connected to the first terminal of the switch S, and the second terminal of the switch S is simultaneously It is connected with the first end of the eighth resistor R8 and the first end of the tenth capacitor C10, and the second end of the eighth resistor R8 is simultaneously connected with the first end of the first resistor R1, the first end of the headphone jack XS, and the third capacitor The first end of C3 is c...

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Abstract

The invention discloses a miniature hearing aid. The miniature hearing aid comprises a battery, a switch, a single-pole three-throw switch, an inductor coil, a microphone, an earphone socket, resistors 1-9, capacitors 1-10, a potentiometer, and an audio amplification integrated chip with the model of SL8712, wherein a sound from the outside is converted by the microphone, sent into the audio amplification integrated chip, amplified by the audio amplification integrated chip and played by an insert earphone of the earphone socket; by changing a threshold of the potentiometer, the value of a volume signal can be changed; the fourth resistor, the fifth resistor, the fifth capacitor and the sixth capacitor form a high-frequency actuation network to prevent self excitation of a circuit; the second capacitor suppresses interference of a low-frequency signal; the third capacitor suppresses interference of a high-frequency signal. The miniature hearing aid has the characteristics of being small in size, light, convenient, attractive in appearance, low in power consumption, low in noise, high in anti-interference, and the like, and is simple in circuit structure, few in elements, low in cost and beneficial to popularization and promotion.

Description

technical field [0001] The invention relates to a device for assisting hearing, in particular to a miniature hearing aid. Background technique [0002] A hearing aid is a tool, device, device, and instrument that helps the hearing-impaired to improve their hearing impairment, and then improve their ability to communicate with others. Clear, inaudible sound. However, many hearing aids are often large in size, power consumption, high noise, low sensitivity, complex circuit structure, many components, and high cost, which is not conducive to popularization and promotion. Contents of the invention [0003] The object of the present invention is to provide a miniature hearing aid in order to solve the above problems. [0004] The present invention achieves the above object through the following technical solutions: [0005] The invention includes a battery, a switch, a single-pole three-throw switch, an inductance coil, a microphone, an earphone socket, a first resistor to a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04R25/00
Inventor 胡华翔
Owner 爱玛克医疗技术(成都)有限公司
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