The electromagnetic buzzer is composed of an oscillator, an electromagnetic coil, a magnet, a vibrating diaphragm and a shell. After the power is turned on, the audio signal current generated by the oscillator passes through the electromagnetic coil, causing the electromagnetic coil to generate a ma

From the introduction of previous issues, we know that both piezoelectric buzzer and electromagnetic buzzer can work under the condition of connecting DC voltage, which can be said to be their common point. Today we talk about the differences between the piezo buzzer and magnetic buzzer.Magnetic b

A buzzer or beeper is an audio signalling device, Contain piezoelectric (piezo) buzzer / transducer, magnetic buzzer / transducer and mechanical buzzer, piezo or magnetic buzzer / transducer also contain SMD type, we call them SMD piezo buzzer / transducer and SMD electro-magnetic buzzer / transduce