Power supply design has always been a difficult problem for engineers. With the global awareness of energy conservation and environmental protection, designing simple, efficient and lightweight green power has become the top priority of engineers. In order to help engineers solve this problem, we are now launching a large number of practical applications. The information is downloaded by engineers and friends. The current e-book is called "30 Cases of Power Switch Design Tips". It gives a detailed explanation of the power switch design skills. I believe it will be of great help to engineers and friends.
"30 Cases of Power Switch Design Tips" The e-book collects 30 secrets about power supply design written by TI experts. Now we have made a customized book to facilitate the downloading of engineers. The top ten secrets of these 30 secrets are as follows. The last 20 will be shared with you twice and again, so stay tuned.
The contents of this document for everyone to display are as follows:
Tip 1 Choose the right operating frequency for your power supply 2 Drive the noise power tips 3 Multi-phase boost converters provide power tips for car audio amplifiers 4 Single-chip bq2403x Power Path Manager charges the battery while powering the system Tip 5 Complete Battery Pack Design Tips for Single or Two Battery-Powered Portable Applications 6 Using the TPS65552A to Drive a Portable Camera Flash Tip 7 White LED Power Supply Design Tips 8 Using Multiphase Digital Power Solutions to Deal with System Problems 9 First PWM devices: Open the door to the development of the power management industry 10 Battery capacity: How to accurately predict the remaining battery power and running time of portable devices
See the PDF document for the contents of the document!
Circular polarizing filters, namely circular polarizing filters. It is mainly used to eliminate polarized light, increase color concentration, deepen sky blue, highlight white clouds, and eliminate reflected light on non-metallic surfaces such as glass or water surface. It can also reduce the soft focus caused by atmospheric fog in landscape photos, but does not change the tone balance of the whole picture.
Linear polarizer, also known as ordinary polarizer, is marked in English as l-pl (UNEAR Polarizer) or PL-L (polarizing F, ilter linear), pllineat, PL, pol, CPL.
CPL structure: it is divided into two pieces. When in use, the back piece is screwed in front of the lens group in front of the lens, and the front piece is rotated. Different angles have different effects on photometry and saturation. It is generally used 90 degrees from the illumination direction to maximize the effect. Generally, it will reduce the 2nd gear exposure and affect the saturation. However, it should be noted that if you want to take beautiful reflections in the water or metal highlights, do not use them. It will eliminate these reflections and you will not get the image you imagine; But if you want to take pictures of fish in the water, algae in the pond, or exhibits in the window, CPL is a good choice. Taking a portrait with CPL will eliminate the highlights on the face, reduce the contrast, and make people's face look flat. See if you need special effects. It is necessary to free up one hand during CPL adjustment, so it is best to use it with tripod and shutter cord.
Role of CPL polarizer: polarizer can eliminate harmful reflected light and improve image clarity and expressiveness. Eliminate reflected light: eliminate light reflected from shiny surfaces such as water or glass. Increase color saturation: it can make the blue sky, green leaves, ridges and buildings more colorful. Circular polarization CPL is specially used for AF focusing camera and digital camera, which is more convenient for rotation adjustment. In addition, it is also compatible with MF manual fuselage.
Cpl Filter,Cirle PL Filter,Cpl Lens Filter,Cpl Camera Filter
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