Active Piezo Buzzer Manufacture
We are a leading manufacturer of high-quality piezo buzzers, specializing in innovative, reliable, and cost-effective sound solutions for diverse applications. Our advanced manufacturing processes ensure precise performance, offering exceptional sound clarity and durability. With a focus on customer satisfaction, we design buzzers tailored to industries such as automotive, consumer electronics, medical devices, and industrial equipment. Our product range includes active and passive piezo buzzers with various frequencies and voltages to meet specific requirements. Committed to excellence, we prioritize stringent quality control, competitive pricing, and timely delivery.
Features
The Active piezo buzzers are self-contained audio signaling devices that produce sound when powered, requiring no external circuitry to function. Here are the key features:
- Compact size and lightweight
- High SPL in a Small Package
- -30°C to +70°C operating temperature range
- Low Power Consumption
- No external power supply
- highly sensitive
- widely applicable
Appliciationm
An active piezo buzzer is widely used in alarm systems, consumer electronics, and automotive applications to produce audible alerts. It is commonly found in devices like smoke detectors, kitchen timers, and car reverse sensors due to its compact size and low power consumption. Its self-contained design allows it to generate sound with just a simple DC power supply, making it ideal for a variety of applications.
what is active piezo buzzer
A piezoelectric buzzer is an electro-acoustic component composed of a piezoelectric ceramic sound-generating element and an oscillation circuit.The piezoelectric buzzer primarily consists of a multivibrator, a piezoelectric diaphragm, an impedance matcher, a resonance chamber, and a housing. Some piezoelectric buzzers are also with light diode on the shell .he multivibrator is constructed using transistors or integrated circuits. When powered (operating at a DC voltage of 1.5 to 15V), the multivibrator oscillates and outputs an audio signal at a frequency of 1.5 to 2.5 kHz. The impedance matcher drives the piezoelectric diaphragm to produce sound.
How does an active piezoelectric buzzer work?
It typically consists of a piezoelectric ceramic plate, a metal cover, and a resonance chamber. When current flows through the piezoelectric ceramic, the ceramic undergoes slight deformation due to the electric field, causing vibrations. These vibrations excite the air within the resonance chamber, producing sound.
What is the difference between active and passive piezo buzzer?
An active buzzer has a built-in oscillation source, so it will sound as soon as it is powered on. In contrast, a passive buzzer does not have a built-in oscillation source, so it cannot produce sound with a DC signal. Instead, it must be driven by a 2K-5K Hz square wave.
Active buzzers are often more expensive than passive ones because they contain an additional oscillation circuit.Active buzzers have polarity and will produce sound when a voltage signal is applied to their two pins. The sound they produce has a single tone with a fixed frequency.
What is the purpose of the active buzzer buzzer?
Piezo buzzers are audio devices commonly used to produce sound. Their compact size, Low-cost, and simplicity make them ideal for applications such as basic sound effects, alarms, and tone generation.
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