The function of the photocoupler IC 802 is to perform error signal feedback to realize the voltage stabilization control, and simultaneously separate the hot bottom plate of the switching regulator power supply circuit from the cold bottom plate of the host core circuit.
The light-emitting diode between the 1st and 2nd pins of the optocoupler has unidirectional guiding property, measured by the R×100Ω block of the multimeter, and the forward resistance value should be infinite; when the resistance value of the LED between the 1st and 2nd feet changes In hours, the current flowing through the LED increases, and the resistance between pins 3 and 4 becomes smaller. The normal resistance between pins 1, 2 and 4 should be infinite.
The photocouplers 1 to 2, 6 to 5, and 6 to 4 are all PN junctions, all of which have unidirectional conductivity, and between 5 and 4 feet are swayed. When the 1 and 21 feet are energized, the 5 and 4 feet are turned on, and the resistance value becomes small.
200*300mm Anti-Blue Light Film
The Imported Anti-Blue Light For ipad is made of high-quality imported TPU material. It is precisely cut by the Screen Protector Cutting Machine. Protect your device screen from scratches and cracks. The flexible TPU Screen Protector can completely cover the iPad screen, providing the maximum protection for the iPad.
Advanced blue light blocking technology can protect your eyes, can effectively filter blue light, prevent glare, reduce eye fatigue, and help you fall asleep better.
Super clear and transparent, will not reduce the screen brightness, maintain the original screen brightness, and reduce eye fatigue.
The Protective Film adopts an oleophobic and waterproof coating, which can ensure anti-fingerprint, waterproof, dustproof and no air bubbles. Moreover, it is sensitive to touch, bringing natural touch, fast response and flawless precise touch.
If you want to know more about Imported Anti-Blue Light For ipad products, please click product details to view the parameters, models, pictures, prices and other information about Imported Anti-Blue Light For ipad products.
Whether you are a group or an individual, we will try our best to provide you with accurate and comprehensive information about Imported Anti-Blue Light For ipad!
Imported Anti-Blue Light Protective Film, Imported Anti-Blue Screen Protective Film, Imported Anti-Blue Screen Protector, Imported Anti-Blue Light Screen Protector
Shenzhen Jianjiantong Technology Co., Ltd. , https://www.jjtbackskin.com