Volume-adjustable passive magnetoelectric buzzer drive circuit and method

Abstract

The invention relates to a volume-adjustable passive magnetoelectric buzzer drive circuit and method. The circuit comprises an input unit, a trigger unit, an input / output control unit, a reference buzzer driving unit and a buzzer volume adjusting module. The method comprises the following steps: the input unit sends a first input signal and a second input signal to the trigger unit and the input / output control unit respectively, and corresponding trigger signals are generated to drive the reference buzzer driving unit to output sound and control the buzzer volume adjusting module to adjust volume output of the reference buzzer driving unit. The provided volume-adjustable passive magnetoelectric buzzer drive circuit and method effectively solve the problem of different demands for volume of a buzzer under different environments.

Description

technical field [0001] The invention relates to a driving technology of a generating device in a financial POS system, in particular to a passive magnetoelectric buzzer driving circuit with adjustable volume and a method thereof. Background technique [0002] The passive magnetoelectric buzzer has the advantage of low cost. It is a sounding device widely used in financial POS systems and electronic products. It is used to generate various prompts, and is widely used in fault alarms, operation feedback, and button volume output. . However, due to the variety of product application environments, some environments are relatively noisy, such as large shopping malls and supermarkets, and some environments are relatively quiet, such as convenience stores and western restaurants. This adopts a fixed volume and cannot meet various environmental needs, and the existing technology The realization of multi-level volume control depends on relatively complex software control, which is c...

AI Technical Summary

Problems solved by technology

However, due to the variety of product application environments, some environments are relatively noisy, such as large shopping malls and supermarkets, and some environments are relatively quiet, such as convenience stores and western restaurants. This adopts a fixed volume and cannot meet various environmental needs, and the existing technology The realization of multi-level volume control depends on relatively complex software control, which is costly, difficult to operate, and not easy to integrate into the financial POS system. Therefore, it is urgent to solve the different requirements for the volume of the buzzer in different environments.

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