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  • 05 2019-09
    Mechanism of piezoelectric buzzer sound
    Structure of piezoelectric diaphragmThe piezoelectric sound element must have a piezoelectric diaphragm.This is a simple structure in which a piezoelectric ceramic adheres to brass or nickel alloy metal plate. Mechanism of producing sound for piezo diaphragmsWhen a voltage is applied to the piezoe
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  • 24 2019-08
    Loudness and pitch of sound
    Loudness and pitch of soundSound is a vibration of air.Sounder pressure level (dB) = loudness of soundAir pressure is called Sound Pressure when a sound is propagated through the air.Minimal loudness of sound perceived by a human is defined as 0dB (20μPa). Sound pressure that Manorshi’s sound compon
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  • 12 2019-08
    Why buzzer has noise
    When the sound of the buzzer is not a crisp and simple hum, we will call it a murmur or a broken sound. The cause of the buzzer noise can be divided into two possibilities.First, there are problems with the way of using:The voltage to the buzzer is too high: the diaphragm hits other parts inside the
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  • 12 2019-08
    Related issues about buzzer voltage
    Active BuzzerIf it is an active buzzer, that is, a buzzer with a drive circuit inside, the voltage used is the DC power supply. For example, the common type MSPS23A35P12 is directly driven by a 12VDC voltage.Passive BuzzerIf it is a passive buzzer, that is, an externally driven buzzer, the voltage u
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  • 16 2019-07
    What’s the difference between active buzzers and passive buzzers?
    The buzzer is a very important feature in electrical and electronic appliances. The functions of a buzzer are numerous. They can be used to raise an alarm, observe and note the status of equipment, indicate commands, enhance user interactions, etc. So if you want to design a product like a do
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  • 15 2019-07
    What is Active Piezo Buzzer?
    The active piezo buzzer is an integrated electronic sounder that is powered by DC voltage and is widely used in electronic products such as computers, printers, copiers, alarms, electronic toys, automotive electronics, telephones, timers, etc.
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