tube LED Bulb LED devices
05/09/2013 09:08
LED devices commonly used there are two types: Digital tube and lattice. 8-segment digital tube LED Bulb LED devices belong to one. 8-segment digital tube, also known as 8-shaped digital tube is divided into eight sections: A, B, C, D, E, F, G, P. Where P is the decimal point. Commonly used digital tube 10 pins, each section with a pin, the other two pin is a common digital tube COM, communication between the two. Can be displayed: Time, date, temperature, etc. can be used with a digital cable instead of parameters.
Since the LED digital tube has: rich colors, high brightness, low power consumption, fast response, easy and integrated circuit decoder drives used in conjunction with the advantages of direct and therefore, digital tube is mainly used for all kinds of instruments, equipment, household electrical and other digital display. Especially the wide range of applications such as home appliances: air-conditioning, water heaters, refrigerators, microwave ovens, induction cooker, the vast majority of the water heater, etc., are digital devices tube applications.
We are doing should be led test found that when high-frequency current drive, they would often burn black phenomenon, eventually leading to death lights. Specifically in the gold wire around the silicone gel due to persistent high temperature carbonization burned black, which is due to the high frequency impedance is much higher than the DC resistance, impedance increases the gold fever is more serious to make colloidal burned black, the reason for this phenomenon is the skin effect.
