Piezo Active Buzzer Suppliers

What is Piezo Active Buzzer

A piezo active buzzer is an electronic component that generates sound using a piezoelectric element. It is commonly used in various electronic devices, such as alarms, timers, and notification systems.
Piezoelectric materials, such as quartz or certain ceramics, have the property of generating an electric charge when subjected to mechanical stress or vibration. The reverse is also true, where applying an electric charge to the material causes it to deform or vibrate. This property is utilized in piezo buzzers to produce sound.
The frequency of the sound produced by a piezo active buzzer is determined by the oscillator circuit and the physical characteristics of the piezoelectric element. By controlling the frequency and intensity of the electrical signal, different tones and volumes of sound can be generated.
Piezo active buzzers are often small and compact, making them suitable for integration into various electronic devices. They are efficient and require relatively low power to operate. Additionally, they have a fast response time, allowing for quick sound generation.
It's important to note that piezo active buzzers produce a continuous sound or a simple tone. They do not have the capability to produce complex melodies or different pitches like a speaker. For more sophisticated sound generation, a separate audio playback system or a speaker would be required.

    Operating Principle: A piezo active buzzer incorporates an integrated oscillator circuit and driver circuitry within the component itself.
    Sound Generation: It produces sound when a direct current (DC) voltage is applied to its terminals. The integrated oscillator circuit generates the desired frequency without the need for an external signal source.
    Signal Control: The frequency and duration of the sound can be controlled by the input voltage or through additional control pins on the buzzer.
    Voltage Requirement: It typically operates at a higher voltage range, such as 12V or 24V, depending on the specific model.
    Sound Output: Similar to the piezo passive buzzer, the sound output is usually a single tone or a simple sound, although some models may have the capability to generate multiple tones or sound patterns.
    Control Complexity: Since it has an integrated oscillator circuit, it is relatively easier to control and can produce specific sound patterns or sequences without additional circuitry.