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BUZZER 
 
Piezoelectric (piezo) buzzer, Magnetic buzzer,  SMD buzzer, Piezo siren
SPEAKER
 
Bluetooth Speaker, Mylar speaker, TV Speaker, Woofer
ULTRASONIC SENSOR
25KHz,40KHz ultrasonic sensor
PIEZO ELEMENT
 
Piezo bimorph, Single-sided piezoelectric ceramic element
since 1997

LATEST NEWS

Get least news from HongChang Electronics!
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  • 21
  • February
Piezoelectric ultrasonic transducer introduction

Many applications of ultrasonic sensors are based on distance measurement, such as UAV obstacle avoidance, rangefinders, parking radars... In these applications, the role of ultrasonic transducers as an important component is energy conversion. The ultrasonic transmitter converts the pulse signal into ultrasonic waves and transmits it, and the ultrasonic receiver receives the returned ultrasonic waves and converts them into electrical signals.

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  • 02
  • July
How to judge the actual power of the speaker

Recently, I have always encountered the problem of exaggerated speaker power in customer enquiries. For example, a 4-inch speaker customer told me that the power is 50W or more. This is completely nonsense. I want to say that the manufacturer with such a label is fooling someone. Not every custome

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  • 09
  • September
The difference between piezo buzzer and magnetic buzzer (Part 4)

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

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