{"product_id":"active-buzzer-module-ky-012-applicable-accessories-buzzer-new","title":"Active Buzzer Module Ky-012 Applicable Accessories Buzzer New","description":"\u003cp\u003eITEM NAME:Active Buzzer Module Ky-012 Applicable Accessories Buzzer New Product     Description Description: The structure principle of the buzzer (1) Introduction of the buzzer 1. The function of the buzzer: the buzzer is an integrated structure of electronic signal buzzer, using DC power supply, widely used in computers, printers, copiers, alarms, electronic toys, automotive electronic equipment, telephones, timers, etc. Used as a sounding device in electronic products. 2. Buzzer classification: mainly divided into two types: piezoelectric buzzer and electromagnetic buzzer. 3. The circuit graphic symbol of the buzzer: the buzzer is represented by the letter \"H\" or \"HA\" in the circuit (the old standard uses \"FM\", \"LB\", \"JD\", etc.). Schematic diagram of buzzer (2) The structure principle of the buzzer 1. Piezoelectric buzzer: The piezoelectric buzzer is mainly composed of a multivibrator, a piezoelectric buzzer, a resistance matching device, a resonance box, and a shell. Some piezoelectric buzzer shells are also equipped with light-emitting diodes. The multivibrator is composed of transistors or integrated circuits. When the power is turned on (1.5V-15V DC working voltage), the multivibrator starts to vibrate and outputs 1.5-2.5kHZ audio signals, and the impedance matcher pushes the piezoelectric buzzer to sound. The piezoelectric buzzer is made of lead zirconate titanate or lead magnesium niobate piezoelectric ceramic material. Silver electroplated on both sides of the ceramic sheet, after chemical and aging treatment, and then bonded with the brass sheet or stainless steel sheet. 2. Electromagnetic buzzer: The electromagnetic buzzer is composed of oscillator, electromagnetic coil, magnet, vibrating diaphragm and 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 magnetic field. The vibrating diaphragm periodically vibrates and produces sound.Find many great new \u0026amp; used options and get the best deals for Active Buzzer Module Ky-012 Applicable Accessories Buzzer New at the best online prices at Order2india Shopping! Free shipping for many products!\u003c\/p\u003e","brand":"O2INEW","offers":[{"title":"Default Title","offer_id":1591394402319,"sku":"O2I-0-403213278611","price":1597.0,"currency_code":"INR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0929\/2582\/products\/s-l2000__20107_ca09d08c-2d05-4e2c-81e0-16ae75279c8f.jpg?v=1679871849","url":"https:\/\/order2india.com\/products\/active-buzzer-module-ky-012-applicable-accessories-buzzer-new","provider":"ORDER2INDIA SHOPPING","version":"1.0","type":"link"}