Overview:
MC34063 expansion flow step-down circuit diagram, input 8 ~ 25V, output 5V, suitable for single-chip power supply, USB power, mobile phone charging.
MC34063 diffused negative voltage output circuit diagram, input 5V, output 14.5V, adjust R4, R5 can change the output voltage.
MC34063 boost current-expanding circuit diagram, according to the output voltage, select the appropriate current-expanding transistor, the triode should be added with heat sink, the minimum voltage of this circuit is 4V, the output voltage is 12V, the value of R1 and R3 can be adjusted to change the output voltage.
Tempered Glass Screen Protector
The JJT Tempered Glass Screen Protective Film is protected by specially treated glass, and the Tempered Glass Screen Protector brings excellent scratch resistance to the screen. The Tempered Glass Protective Film is made of shockproof technology, which has the characteristics of anti-scratch, anti-fingerprint and anti-oil, which can greatly reduce the damage to the screen due to strong collision. The adhesive force of the silicon adhesive ensures that there is nothing between the screen protector and the screen, thereby improving touch sensitivity. Ultra-transparent glass can ensure a better clear image quality than ordinary Screen Protectors.
The surface hardness of the Tempered Glass Screen Protection Film is 9H, which is 4 times that of ordinary PET Film. Sharp objects (such as knives and keys) will not scratch the surface.
The Screen Protector has an "oleophobic and waterproof" coating to prevent fingerprints and other contaminants, making the screen protector easy to clean.
It has unparalleled touch and high responsiveness to touch, 99.9% transparency, transparent without bubbles.
Tempered Screen Protector, Tempered Glass Screen Protector, Tempered Glass Protective Film, Tempered Glass Film, Tempered Glass Screen Protective Film
Shenzhen Jianjiantong Technology Co., Ltd. , https://www.jjthydrogelmachine.com