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Buzzer sound adjusting device and adjusting method and household appliance

A technology for adjusting devices and buzzers, which is applied in the direction of sound-generating devices and instruments, and can solve problems such as the volume and tone of the buzzer cannot be adjusted

Pending Publication Date: 2018-05-11
深圳和而泰小家电智能科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The main technical problem to be solved by the embodiments of the present invention is to provide a buzzer sound adjustment device, adjustment method and household appliances, which can solve the problem that the volume and tone of the buzzer cannot be adjusted in the prior art

Method used

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  • Buzzer sound adjusting device and adjusting method and household appliance
  • Buzzer sound adjusting device and adjusting method and household appliance
  • Buzzer sound adjusting device and adjusting method and household appliance

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Embodiment Construction

[0056] In order to make the purpose, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0057] The buzzer sound adjustment device, adjustment method and household appliances in the embodiments of the present invention will be described below with reference to the accompanying drawings.

[0058] refer to figure 1 , figure 1 It is a schematic circuit diagram of the buzzer sound adjustment device according to the embodiment of the present invention. Such as figure 1As shown, the buzzer sound adjustment device 10 includes: a buzzer BUZ, a first resistor R1 , a first on-off circuit 100 , a voltage adjustment module 200 , a first power supply VCC and a control module 300 .

[0059] ...

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Abstract

An embodiment of the invention discloses a buzzer sound adjusting device and adjusting method and a household appliance. The device comprises a buzzer having a first end and a second end; a first resistor connected with the first end and the second end of the buzzer respectively; a first on-off circuit connected with the buzzer; a voltage regulator module connected with the first end of the buzzer; a first power source connected with the voltage regulator module; and a control module connected with the voltage regulator module and the first on-off circuit. The control module sends a first PWMsignal to the first on-off circuit to control the sound volume of the buzzer, and sends a second PWM signal to the voltage regulator module according to a target volume so as to adjust the voltage input to the buzzer to realize volume adjustment. By adjusting the duty ratio of the PWM signals, the voltage of the buzzer is changed, so that the sound of the buzzer is adjustable, and the user can select an appropriate sound according to different use environments.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of smart home appliances, in particular to a buzzer sound adjustment device, an adjustment method, and a household appliance. Background technique [0002] Household appliances usually use a buzzer as a sounding device, and the conventional driving signal of the buzzer is driven by a frequency signal with a fixed duty cycle to emit a fixed decibel sound. [0003] In the process of realizing the present invention, the inventors found that there are at least the following problems in the related art: the sound volume of the buzzer of the household appliances in the prior art cannot be adjusted, and different volumes can only be generated by selecting buzzers with different decibels. If the volume of the buzzer selected by the household appliance is low, it is difficult for the user to hear it in a noisy environment; when the volume of the selected buzzer is high, the sound is harsh in...

Claims

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Application Information

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IPC IPC(8): G10K9/125
CPCG10K9/125
Inventor 刘杨李书峰甘德喜
Owner 深圳和而泰小家电智能科技有限公司
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