What is the component symbol of the buzzer?

The component symbol of a buzzer is usually represented by a circle. The circle has an arrow that shoots outward. The arrow indicates the direction in which the buzzer emits sound. The buzzer is an electronic device that emits sound. The principle of the device is similar to that of a relay. The energized electromagnet attracts the diaphragm to oscillate to produce an audio signal, thereby emitting sound.

# Operating system for this tutorial: Windows 10 system, Dell G3 computer.

Buzzer (English name: Buzzer) is an electronic device that emits sound. Its principle is similar to that of a relay. The energized electromagnet attracts the diaphragm to oscillate to produce an audio signal, thereby emitting sound.

The component symbol of a buzzer is usually represented by a circle with an arrow that shoots outward. The arrow indicates the direction in which the buzzer sounds. Specifically, the symbol of the buzzer is as follows:

Buzzers are widely used in computers (motherboard buzzer, chassis buzzer, computer buzzer Buzzer), printer (control panel buzzer), copier, alarm industry (alarm buzzer, alarm buzzer), electronic toys (music buzzer), automotive electronic equipment industry (car buzzer, Reverse buzzer, car buzzer, motorcycle buzzer) telephone (environmental protection buzzer), timer, air conditioner, medical equipment and other electroacoustic industries.

Classification of buzzers

1. Active buzzer has an oscillation circuit inside. When the voltage is connected to its two pins, it will emit a fixed frequency sound;

2. The passive buzzer has no oscillation circuit inside and will not sound when connected to the power supply. When using it, you need to use square wave signals of different frequencies to drive it to sound.

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