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Electronic components knowledge detailed explanation of the buzzer chapter

Inductive buzzer


Detailed professional knowledge: inductive buzzer is an electronic device that uses a magnet coil to pronounce the effect of the buzzer chip, divided into two types of digital amplifiers and microwave inductors, digital amplifier buzzer access to DC power can pronounce, microwave inductor buzzer must manipulate the data signal to complete the sound generation.


Model selection proposal: 1. clear buzzer oscillation source to determine the optocoupler circuit. 2. buzzer sound pressure is often to 10 cm spacing as the norm of detection, doubling the spacing, about 6dB will be attenuated coefficient.


Common well-known brands: Kepu, Changzhou City Sound Xiang

Common model specificationsEFM-250D10TDP-2020PTDP-1540PBXY22GP2002BCE-13240-5PA-2328BPS1240P02BTSH1240T2PJSH1440T2PA

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Piezo-resistive buzzer


Professional knowledge in detail: piezo-resistive buzzer is piezoelectric effect of the piezoelectric ceramic chip to promote the vibration of the copper chip and pronunciation, higher than the electromagnetic induction buzzer sound, power consumption flow is smaller.


Model selection proposal: 1. clear buzzer oscillation source to determine the optocoupler circuit. 2. buzzer sound pressure is often to 10 cm spacing as the norm of detection, spacing doubled, about 6dB will be attenuated factor.


Common well-known brands: Kepu, Changzhou City Sound Xiang

Common model specificationsEFM-250D10TDP-2020PTDP-1540PBXY22GP2002BCE-13240-5PA-2328BPS1240P02BTSH1240T2PJSH1440T2PA

Electronic components expertise detailed description - buzzer - technology professional electronic components accessory|Baihe electronic devices, walsin HuaXinKe, YAGEO GuoJu, Leshan wireless network LRC, UTC and other famous electronic components, distributors of goods are: chip capacitors, solid capacitors, electrolytic capacitors, resistors, chip type row resistance, wirewound resistors, flat thin aluminum case resistors inductors, diodes and transistors, IC, MOS tube, automotive relays, high-frequency transformers.


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